[in Japanese]

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“Eigamonogatari”(forty volumes) has plentiful expressions of the garden life in the Fujiwaras period at the zenith of their prosperity. The study analyzes the literature and enters into landscape design, common-use and maintenance of the Japanese gardens in it. The subject of this study (I) is about seven imperial gardens with thirty nine details. They are “Saiguden”, “Tsuchimikadoden”, “Kyogokuden”, “Biwaden”, “Nijoden”, “Tobaden” and “Dairi”.
In landscape design a special feature consists in the design effects with sound and light which are in the expressions of garden details; artificial hill, pond, island, stream, waterfall, bridge, sand pavement and the Suhama. Besides it in planting the design effects of colour are expressed to be closely connected with garden trees and Senzai which are chinese creeper hanging over a pine tree, Japanese apricot, weeping willow, cherry, Japanese spindle tree, Japanese wisteria and chrysanthemum.
In common-use the literature describes how the noble persons' life is much concerned in the gardens with the details of Funagaku, boting on Ryoto Gekisu, special banquets on Japanese wisteria, cherry, chrysanthemum and the moon, betting bow, cook-fighting, sweet iris festival, Tanabata festival, Sumo matches and making snow mound.
In maintenance it has been definitely shown by the analysis that there was garden maintenance such as cleaning of pond, diging Senzai, and using garden at night with bonfires, torches and watching huts for garden lighting. Overall conclusion the descriptions of the gardens in “Eigamonogatari” are very interesting to complete the Japanese garden history.

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[in Japanese]

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[in Japanese]

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The physical differences of the viewing activities depend on the physical and qualitive independences of the 3 categories; structure, garden, nature, which compose views. This study refers to the relations between the degrees of these independences and the physical differences on the entitled 3 gardens.

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Mon étude a porté tout d'abord sur la création et les transformation puis sur la signification du parc et du jardin du chateau de Versailles sous le regne de Louis XIV (1661-1715). pendant cette periode, le parc et le jardin ont sans cesse été mis en travaux. J'ai etudie l'amenagement du terrain, pour faciliter le travail, ai retenu un decoupage chronologique de 4 périodes. J'ai recherche le caractere et les raisons des travaux effectues. 1 ^ere Période (1661-67)
Recherche du style du parc du jardin: representation de la domination de l'absolutisme recemment etabli.
2 ^e periode (1667-84)
Decolation et renouvellement. L'etat devient fort; le parc et le jardin representent le symbole de la puissance royale.
3 ^e periode (1684-98)
Renouvellement qualitatif de la decoration. L'atmosphere devient plus simple et plus calme. L'ésthetique, sans symbole, domine l'éspace a cause du formalisme de l'état.
4 ^e periode (1698-1715)
Abandon partiel, a cause des depences de la guerre et de la depression economique.

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[in Japanese]

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The establishment of Yellowstone National Park has been mainly explained in terms of its discovery by expeditions. But why this park should have been established in 1872 is still under question. In this study, aspects seen from economic history are analysed, and Jay Cooke, a powerful financial capitalist at that time, is inferred to have been most instrumental in the advancement of the park bill.

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Since modern ages (Meiji era), Japan had introduced Western cultures and institutions, which including public parks. In the process of acclimatizing public parks to Japan, which are products of Western modern societies, the author deals with the cocept of them for Japanese socialists in Meiji era from viewpoints of (1) Municipal problems, (2) Socialism and (3) Publicity (public interests).
(1) The urban sanitation was one of the most important municipal problems. Ogai Mori, Sen Katayama and Isoo Abe commented it in their own works. For instance, Katayama published “Municipal Socialism” in 1903 and wrote in it, “Public parks are places of amusement for the poor and safety valves of the city. Existence of them closely affected to the public sanitation for the citizens...”
(2) THE OSAKA HEIMINSHIMBUN (Oct. 15 in 1907), A Socialist Semi-Monthly, put an interesting article, A dialogue of public parks, which briefly showed that establishing public parks meant Socialism. The concept of public parks was new one in modern Japan and coming up to the gate of “New Society” as Fumio Yano said symbolically.
(3) They grasped the concept of public parks in the process of understanding Publicity has a bipolarity, one coming up to the government and the other to the public.
The opening seremony of Hibiya Park was held June 1 st in 1903. Toshihiko Sakai said, “The Hibiya Park met my wish.” The Japnese socialists generally evaluated it as regards the Western style on one hand and the other felt discontented it in respect of Publicity.
They grasped public parks as a manifestation of socialism. The process of Japanese modernization yielded municipal problems, which inevitably created the domain of Publicity. The public parks were the incarnation of it. They understood that municipal problems would be able to solve by socialism (municipal socialism) and that public parks were facilities of the city.

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[in Japanese]

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The park problem for public use is need to show precisely the administrative confirmation with lawful foundation. the Cabinet proclamation park was cleared by the historical materials of official document in establishment time on the Meiji Period (1868-1912). under the Geographical Bureau supervisory management, the official documents on park is recorded the Ministry of Home Affairs injunction for prefectural inquiry.
The prk establishment was the recognition of main ministry judge. prefecture inquired to solve the problems and asked for the injunction. these results of administrative injunction is written on prefectural official documents.
After the Geographical Bureau was abolished in 1891, park establishment come to the forest land from the precinct of urban shrines. the conversion of state land item was authorized by the Ministry of Agricultural and Commerce. as these results, place of a famous sight recognized to park and was made progress by decision of the prefectural congress, under recognition of the Health Bureau, the Ministry of Home Affairs. character of the Cabinet proclamation park to public installation, consolidated gradually to the National park for famous sight park under direction of the Forest Bureau, the Ministry of Agricultural and Commerce, but this problem is difficult to clear on official document.

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Landscape Architecture in our country begins to be formed in “The Age of Tokyo Town Planning”(1884-1903). In these days, as the policy of modernization and urbanization is adopted, the municipal parks are looked upon to be needed as one of the necessary city facilities. The municipal parks are concerned with the gardens in form, matter and history. So the Landscape Architecture which makes the municipal parks and the gardens object developes in the field of Horticulture which contains the section of gardening. At the first, the traditional gardens of our country is treated as the field of the Horticulture by Dr. Yokoi. Next, the necessity of forming modern Landscape Architecture is maintained by Dr. Fukuba in his work “On the Area of Horticulture.” Then the principles of Landscape Architecture is dealed with, and the necessity of reasonable planning, designing and constructing is refered to by Dr. Fukuba in the transcript of his lectures “Engeiron (On Horticulture)”. But as it is treated of the part of Horticulture, it is not formulated complete system of Landscape Architecture.

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[in Japanese]

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For the purpose of obtaining the fundamental data for the safe and proper walking project for the Visually handicapped person, I inuestigated the actual condittions in their going out, the landmark for walking etc, by mainly records in raised type, and reported the outcome according to their degree or age.
The report proves that the visually handicap puts limits to their walking and that their scope of walking and activity is more narrowly limited than the normals.
Many visually handicapped people go out three or four times a month, chiefly for shopping, and the majority of them use a cane as the means for walking.
walking project for the Visually handicapped person, I inuestigated the actual condittions in their going out, the landmark for walking etc, by mainly records in raised type, and reported the outcome according to their degree or age.
Though buses or trains are used as transportions in a great degree and wolking follorus them, the rate of walking is also high.
Much are given to them from different information in circumstancen as useful landmark for walking. The information by the sense of touch is more than 50 percent of all, and be cause it is more reliable than that by any other senses, it is used as the most important landmark.

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The results of the study are as follows.
1. Floor-vegetation of sparse-wooded areas was classified into three communities; Trampling-olerant type, Herbaceous type, and Woody type as a consequence of intensity of recreational use.
2. Quantitative composition of three types per unit plot could be estimated by the occurrence rates of the Woody type.
3. Average percentage cover and occurrence rates of the Woody type were regarded as good indices reflecting recreational densities.
4. When the maximum levels of staying visitors of sparse-wooded area are supposed, spatial relationships between distribution of recreational densities and vegetation diversities can be estimated by using the above-mentioned two indices and reversed functions.
5. It was concluded that recreational carrying capacity for maintaining semi-natural floorvegetation without ecological deterioration in sparse-wooded areas would be under 250 persons (about 180 persons per hectare as a crude yardstick in planning).

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The purpose of this study is to clarify the relation between physical components and evaluation of users in children's park.
Ten items (size of park area, shape of park, layout of play equipments, kind of fences and hedges, composition of play equipments, presence or absence of skiing mound, composition and conditin of rest facilities, composition and condition or accommodation service facilities, propotion of lawn area to the total park area, and density of planting) were selected as the important components of children's park. And an average of assessed satisfactions of users in the children's park, which were surveyed by the questionnaire interview method, was used as the evaluation value of each park.
The results are as follows.
1) The size of park area, the composition of play equipments, and the density of planting had a great influence on the evaluation of parks in the analysis with total samples.
2) In the analyses of each age group, the following factors were selected as the relatively influential ones in addition to the above three factors; the proportion of lawn area to the total park area in the analysis of preschool children, the composition and condition of rest facilities in the analysis of 1st-3rd grade school children, the composition and condition of accommodation service facilities in the analysis of 4th-6th gradeschool children.
3) In regard to the size of park area, the standard size of children's park (2, 001-3, 000m²) had a tendency to raise the evaluation of park.
4) An increasing number of play equipment which was a favorite with children had a tendency to raise the evaluation of park.
5) The high density of planting had a tendency to raise the evaluation of park, and the medium density had to reduce the evaluation of park.

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In a improvement planning and project of public open space, particularly in a “green structure planning” for improvement of the living emvironment, it is important to participate with citizens, government members, and landscape architects, We report a process of agreement with citizens, government menbers, and landscape architects, and a few view on this point, in the case study of “Bonsai-Shiki-No-Michi” project in Omiya city.
A few view on this point is as follows.
1) In a “green structure planning” at urban district, it is effective to execute it by the meeting group with citizens, government menbers and landscape architects, and by the meeting with people at this district for this planning.
2) The importance of this meeting group is to be able to plan and check up this project.
3) The meeting made an occasion to participate all menbers of this district in this project.

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[in Japanese]

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Aerial pictures taken of a forest from an altitude of several thousand meters can only provide limited details for the interpretation of a forest. Therefore, we decided to attempt simple aerial photography using a balloon (hereinafter called balloon pictures) and performed the experiment in hopes of providing better forest interpretation. The details of the experiment are as follows:
1) It was an effective aid in the topographic interpretation of the various kinds of trees, grasses and herbs. Pictures taken at an altitude up to 50 meters were effective in helping to identify grasses and herbs. Pictures taken at an altitude between 50 and 100 meters clearly defined shrubs for identification. At an altitude between 100 and 300 meters, the pictures clearly defined individual stands of trees.
2) It was helpful in the regular observation of vegetation aspects and made it possible to identify their seasonal changes.
3) It provided a means to precisely measure the heights of trees.
4) It was used for investigating the distribution of naturally growing Picea jezoensis. While balloon pictures provide very accurate information, they only cover small areas, are difficult to take in a strong wind, and the direction of the pictures is not very stable. Our future tasks include correcting these drawbacks and utilzing balloon pictures in other fields such as landscape architecture.

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[in Japanese]

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The landscape diversity in the floodplain of the Tama River and that of the Tokyo area were analysed using published vagetation maps. Four diversity indices were calculated; community richness, patch richness, H'(Shanon-Weaver's diversity index), J'(Pielou's evenness index). Generally speaking, the four indices are signficantly correlated with one another.
The floodplain of the Tama River was devided into 62 segments with the space of one kilometer from the mouth of the river. Two factors, area and alteration of land by human activities, were extracted from the characteristics of these segments by factor analysis. It is found that landscape diversity is negatively correlated with alteration of land by human activities.
Landscape diversity indices were calculated in 65 quadrats (1×1km) sampled at random in Tokyo. Landscape diversity increases as the land undergoes changes by human activities, reaching the maximum where urban and agricultural areas account for 50%, but decreases in the quadrats subjected to heavy alteration by human activities.
The findings in the floodplain of the Tama River are similar to those in the quadrats subjected to heavy alteration by human activities in the Tokyo area.

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Even though the resident's attitude towards dweling comfort was somewhat positive, the intent of long term habitation was low. The elements of the environment that relate most strongly to the resident's cognition of his/her environment are a) size of site, b) topography, c) amount of building coverage, and d) building density. These elements, then, considered as basic components of the residential planning process.

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Today, it is needed to find a proper way or method for creating spaces with water within the urben area. To do so, it is necessary to know and understand the relationship between spatial and temporal components, and the resultant behavioral reactions caused by the psychological process of each person. From an understanding of these relationships, a planning and design procedure was created for the use of water within the urban context.
In this study, information on behavioral responses was obtained by a questionnaire survey which our group conducted in Amagasaki city, the case study area. As behavioral responses are influenced by individual experiences, four elements which are basic to all backgrounds were chosen. These are 1) the number of years of residence, 2) age, 3) sex, 4) place of habitation. The indexes, made from the responses, consist of reactions to existing environmental factors and to proposed functional spaces indicated by a phrase or a picture. The answers were then evaluated both quantitatively and qualitatively. The analysis, thus, used a combination of the statistical method, factor analysis, dual scaling, etc.
From this analysis, it was learned that the inhabitants have many kinds of characteristics and tendencies. Some of these are as follows:
1) The inhabitants desire more spaces with water, but the degree of want depends on their individual backgrounds.
2) Long-term inhabitants, the aged, and males are generally more eager to have spaces with water than short-term inhabitants, the young and females.
3) From the factor analysis, a classification system was deduced for open spaces with water, according to function and the desired image.
4) The inhabitants express different expectations of spaces with water on the questionnaire, than what they claimed to like on the photographs. However, the process of decision making as to what is the most important element or use for the space was influenced by cpnditions shown in the sample photographs.
In the next step, it will be necessary to do further study to confirm the findings on the public's subconscious needs and wants, so that one might be able to better rehabilitate a site to satisfy those requirements.

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This study attempts to search out the relation between the image and the scale of the river which is very critical for landscape planning and design of the river space. The process of the study is basically divided into two steps:
1. Research on differences between the image of the river and the stream by means of three questions;
2. Experiment on the image of rivers related to their scales (width of channel).
The research was done to 1835 residents in Edogawa-ku Tokyo, and got 1287 responses.
The questions are planned to search out the resident's images of water front recreations, facilities and atmosphere, and functions of rivers. Through examination with the consequences of other same kind questionaires, the results of the research shows differences of the two types of rivers.(Table 2, 3, 4)
The experiment is done by means of using 35 mm slide films which are taken on twenty five riversides. And sixty eight individual answers of five graded feeling which are concerning “wide-narrow” and “far-near” are obtained to analyze. Through examination of the facts found throughout former research efforts, the result are regarded as appropriate. It consists of three transitional scale points which are about 40 m, 60 m and 135 m.
The overall conclusion the relation between the image and the scale (width of channel) of the river throughout this study is as follows;
Under 40 m: The river has intimate space feeling.
40 to 60 m: Transitional scale from the stream to the river.
Over 60 m: Getting feelings of the wide river but still in human scale.
Over 135 m: Getting out of human scale.

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[in Japanese]

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In this chapter, for the purpose of examining rows of cedars in Nikko with historical value from the point of landscape planning, I trace the changes in the cedars, clarify how its protection and management have been conducted, and confirm changes in each cedar per year.
As a result of classifying the items about cedars in articles introducing Nikko written by foreigners who visited Japan from the Meiji era, they unanimously described that the cedars in Nikko were the most excellent and the beauty was conspicuous compared with the same kind of cedars elsewhere.
As a conclusion, the origin is considered to be in 1625 and we can perceive historical insight of the past 357 years upon viewing the cedars. The assessment of the Japanese is that the cedars have practical value as consolation for pain caused by the long journey of that time and people made much of its religious value as it lined the approaches to the Nikko Shrine.The valuation by European people tends to take the scenic value as more important.
The rows of cedars in the domain of the Nikko Shrine is considered to be planted with faith in the cedars themselves.

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As to the study on fire preventive function of trees, this paper, as the result of some ignitability tests, shows the critical radiation to auto-ignition of leaves. The critical radia tion is the most important barometer which estimates the fire preventive power of trees.
By means of ignitability test apparatus, it has been observed the radiation limit, and also time and properties of leaves until they come to ignit (anto-ignition).
The critical radiation of leaves are as follows,
evergreen broad leaves tree 13, 450 kcal/m² h
deciduous broad leaves tree 13, 930 kcal/m² h
needle-leaves tree12, 020 kcal/m²h

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[in Japanese]

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Gramineous plants have many features which can be effectively utilized as turfgrass, and they hold a greater part of the turfgrasses now in use. There are a good number of species of gramineous plants. They are classifind into six sub-families, of which three Festucoideae, Panicoideae, Eragrostoideae-have many grasses used as turfgrass.
The turfgrasses now grown in Japan are either Japanese turfgrasses (summer-green type) or American-and European turfgrasses (evergreen as well as summer-green types). From utilization point of view they are classifind into three types: northern, southern, and the middle. The above-mentioned three sub-families fall into the following types respectively:
Festucoideae turfgrass Northern type (evergreen American and European tufgrasses)
Eragrostoideae turfgrass Middle type (Japanese turfgrasses, and some of summer-green American and European turfgrasses)
Panicoideae Turfgrass Southern type (summer-green American and European turfgrasses, and some of Japanese turfgrasses)
Festucoideae turfgrass is a D₃ plant, while Eragrostoideae and Panicoideae turfgrasses are both C₄.
The characteristics of the three sub-families are mostly seen in the turfgrasses themselves. Evergreen Festucoideae turfgrass shows its special features more advantageously in northern climate, while it does not grow well and is vulnerable to disease in jury in areas where summer-time temperature is high. Eragrostoideae turfgrass is summer-green type, strong and endures difficult environments. Though it is not quite so strong against cold weather as the afore-mentioned one, it is being planted in wider areas. Panicoideae turfgrass is also a summer-green type, and is weaker against the cold. It is planted in areas where winter weather, is mild.
Thus, each of the three sub-families has different characteristics, and is planted and utilized in different areas in Japan. When turfgrass is planted these characteristics should be well taken into consideration, and the speculation of future usage should also be started from this point.

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The growth of plants at the green tract of land is not excellent though the reclaimed land of Keiyo marine needs to have tree plantings.
In this research, the author noticed the reclaimed land soil as a problem for plants in the green tract of land. Thereat the problems of reclaimed land soil has been clearly discussed from a stand point of view of physical property of soil and soil water environments.
The results of this research is as follows: i) The different physical characteristics of soil exist at this stage and it can be categorized into three parts. Also, these soils are quite within the bounds of passibility of changing if there is the progress in soil structure. ii) The different soil water environments exist even in a small volume of a soil.
Consequently, when there is a needs of creation of the ground for edaphological soil management and soil ameudment one should cope with the situation of each characteristics of reclaimed land soil in logically.

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[in Japanese]

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Amount of organic accumulations on some artificial slopes was investigated to make clear the soil developing process and to approach the management method of vegetation and soil on artificial slopes.
Investigated areas are
(1) Asiu, in Kyoto pref.,
(2) Higashiyama, in Kyoto city,
(3) Shimamoto, in Osaka pref.,
(4) Koga and Kashiwagi, in Shiga pref.,
(5) Wakasa district: Ayabe, in Kyoto pref., Ohi and Takahama, in Fukui pref. and
(6) Seishin, in Kobe city.
Results are as follows.
(1) In case of Cenozoic sediments, formation of weathered soil layer of about 10 to 30 cm can be attained in 10 years at least.
(2) Organic matter is hardly accumulated on the upper part of the steep and unstable slopes, and is accumulated in the colluvial soil on the lower part. The difference along the part of the slope is not clear in case of the stable slopes.
(3) There is a fairy great variance in accumulation level, and it seems to reflect the area, geology, vegetation and other characters of each slope.
(4) Accumulation process delays in worse site.
(5) Increase of organic accumulations is more remarkable in tree planted slopes than in lawn grass slopes, and is more in broad-leaved tree mixed stands than in pine stands.
(6) Ao percentage to total soil organic accumulations is about 20 to 70% for pine stands, about 3 to 15% for broad-leaved mixed stands and less than 5% for lawn grass slopes.
(7) Soil organic matter accumulating process is expressed by the model of OLSON (1964), X=(L/k)(1-e^-kt), where X: organic accumulations per unit area, L: litter fall, k: decomposing rate, t: time. Amount of dynamic equilibrium, L/k, may indicate the site productivity as long as the climate, the vegetation and other conditions are the same ones. The values, L/k, of Higashiyama slopes were estimated to compare roughly the productivity with each other without the influence of years after construction. And the productivity of a cut slope, which was constructed 50 years ago, seems to have recovered to the level of preserved pine forest, which stands on the ridge of shallow soil.

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It is very important to prevent the soil erosion and slope collapse which may occur on the uncovered slope of decomposed granite soils.
In this paper, erosion and collapse phenomena are discussed with regard to the physical and erodible properties of decomposed granite soils and compaction effects on the banking slopes.
The conclusions obtained are summarized as follows:
1) The soil textures of decomposed granite soils are sandy loam or sand. 2) Specific gravity of the soils is very large (Gs=2.83-2.96). 3) Dispersion ratio of the soils is large (Dr=25.0% 50.0%). 4) Erosion ratio of the soils is very large (Er=140.3%-181.1%).

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In order to provide the visual and physical conditions necessary for recreational pursuits, we must carry on the periodical weeding as one of the forest management practices. But light and trampling other than weeding have an effect on the regrowth of vegetation too. Consequently, having regard for these factors, the frequency of weeding must be arranged for preparing a management programme.
The purpose of this paper is to ascertain the reciprocal actions of the above three factors on the floor vegetation. For this research, the following data were recorded on thirty stands in three typical coppices in the Kanto Plains; relative light intensity, tree stand density, frequency of weeding, trampling intensity, biomass of every species or life form plants, and etc. These data were treated by the principal component analysis.
The results are follows. The total biomass in the forest floor mainly depends on the light intensity, whereas the floristic composition is largely governed by the frequency of weeding or the trampling intensity. Though the floor vegetation consists of the Arundinaria chino-type and the herb-type, the total biomass is controled by light condition on both types. When the light intensity is similar, the former type is formed under the less impact of the other two factors, while the latter type develops under the inverse condition. It has recognized that at least more than 17% relative light intensity is necessary for attaining to Arundinaria chinotype floorscape. But introduction of more frequent weedings (two or three times a year) could replace Arundinaria chino-type floorscape with herb-type one.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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There are many studies on green spaces in living environment. These studies said about relations between green spaces and sense of dwellwrs. What green spaces do dwellers recognize as intimate ones? The object of this report is to grasp relations between a inner green space and dweller's recognition through the degree of knowledge on intimate green spaces. Perhaps differences of recognition of the green spaces would be the causes of the conditions, the forms and the inner structure. Results were the following.
1) Intimate green spaces These are usually seen in daily life. These have been in the region for a long time. These have changes in every season and dwellers can maintain for them selves such as cleaning fallen leaves.
2) Green spaces differing to degree of their recognition High degree-There are a lot of high trees in the green (50%-) space and we are free of these spaces. Medium degree?There are many high trees in the green space (20-50%) and we make use of it with some restrictions. Low degree-There are symbol trees (landmark) and the (-20%) andowner is enterprise corporation and private.
3) Dominant causes of the difference of their recognition Recognition of green spaces is related to landmark, contacts in dweller's daily life and ways of maintenance and management.

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Based upon the consideration on the sturucture of green space from the view point of mans recognition about environment, several factors and conditions concerning commonization of green space were investigated. From these reference frames field survey and questionnair were designed. In three different areas the amount and structure of green space and habitant consciousness were exzamined. From these observation the pattern of commonization of green space were considered. It is elucidated that the potenciality of commonage has close relation to the pragmatic property (scale, usage and condition of green coverage), visibility (structure of green space along the road, location and conspicuousess as landmark) and social condition (land ownership, incentive system and relationship to community) of individual green space. Especially the analysis of the structure of green space along the road is valid for grasping the degree of commonization of private space.

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The main purpose of the present study is to clarify the structure of subjective assessments of open spaces and the factors which influence the assessments in a city scale as seen from the dweller.
The analysis was based on the data from a mailed questionaire survey to sampled dwellers (kindergartners and teachers of primary and secondary schools) in 32 cities in Hokkaido.
1) The result of factor analysis of city images which were measured based on the semantic differential, suggested that there were three major dimensions. The three factors were used in dwellers assessment of urban environment and one of the three indicate the levels of open spaces or natural environment in a city.
2) A multiple regression analysis was carrid out between the assessments (general green environment, the three common factors and the individual scales of functional assessments) and quantity of certain kinds of open spaces which were perceived by respondents respectively. As a whole, the results showed the importance of natural green spaces in urban fringe and residential areas. Judging from the assessment we discussed the differences in cities and classified 32 cities in Hokkaido.

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This is a result of some consideration and discussions on the special stability of the urban farmland and on its control. The spatial stability of it was evaluated by means of lacation factors, diversity factors and density factors in regional aspect and of accessibility factors, orea factor and quality factor in the centext of the features of land existence. Factors of diversity were considered as of effective one to judge the stability of the urban farmland, factors of diversity and area in the context of land use planning.

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[in Japanese]

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