This .paper has double purposes, one is to discribe the reclamation process and landuse at the front-margin Of Kiso, mama, Edo, Babanome, Chikugo and. Kuma Deltas for the purpose of understanding an areal ring pattern of cultural landscape in Delta regions of Japan, and the other is to correlate them, with the Deltas in the world in general especially in Europe and China. The writer points out the similarities and the variations in the reclamation processes of deltas. Similarities are pointed as frllows.
1 Under the influence of cultural element, the landscape of front-margin of delta undergoes development though three stages-salt marsh, grass Harsh, and reclamation (arable) stage.
2 Arable lands in marsh are limited, and the darn-cultivation with drainage systems (Moordammkultur, Une-hata), Island-like field, 4-water and 6-land, system are practiced.
3 Periods of partial, unstable land use are about 10 years since the emban-kment.
4 Scale of reclamation has been changed from the partial reclamation to the large project.
5 Types of landuse are changed under urban influence, the distance from the river mouth, and the population density in respective deltas. The followings are noticed as the variations
1 In Europe, The dominant land use in the front margin of deltas are pasture and hay field, but in Asia, intensive landuse of rice, cotton or mulberry field, fish-pond, salt field, market garden prevails.
2 At the 2nd stage, in Britain and Germany peat, and small amout of hay have been gathered, but in Japan sand and reed which is useful to make “yoshizu” the reed-mat that is used to dry the laver in winter season, have been collected there. Full-time farmers are very few, and most of them are engaged in fishing or part-time labouring as well as farming. Sea and pond are used as under-water farms where they breed fish, shell-fish and laver.

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In the marginal place of Kanto mountainland, and in the hills adjacent to Kanto mountainland, there are several erosional surfaces that are shown by the flatness of ridges and spurs. Especially in Tama hills, we find four erosional surfaces. The upper most erosional surface in Tam hill is correlated to the pediment-like erosional surface which exists in the southern slope of Mt. Ogi, and to the flat spurs which exist in the north-eastern slope of Mt. Sekiro, the neighbourhood of N akano Town and the southern slope of A, It. Ogura.
Upon finding those erosional surfaces, it is inferred that the T plane or the Di plane, an old name for the to pographic plane made at the beginning of the dilubial period, in separated into several erosional surfaces and is extended in the Katsura river basin.
Also, the above results show that the intermittent uplift . took place after the intensive tectonic movement which took place at the end of the Tertiary period.

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It is said that the increase and decrease of rural population are influenced by the standard of living, but I think that they are influenced beside by the cultural factors in many cases.
The rate of population increase in each village of Saku Basin, during 1875-1947 is shown in Fig. 1. The rates are high in marginal districts of Basin, and low in its centeral districts. The relation between the rate of population increase and the economic factors or the cultural factors in this Basin are as follows.
1. The correlation between the rate and the average income in each village as economic factors shows a reversed relation.
2. In the correlation of the distance synchronous from the center (Koomorormachi) as cultural factors with the rates, the more remost the districts are, the higher rates they have.
3. There is the correct correlation between the area of cultivated land as the basis of farmer's life, the area of potential arable land and the rate of population increase.
From what was mentioned above, I think that the increase and decrease of rural population in Saku Basin are influenced not by the economic factors, but by the cultural factors.

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The writer tried to study the characteristics of the satellite cities from the view point of the 'development of a city, and gave any example to Matsudo city in Chiba prefecture.
Matsudo has developed as a ferry-town, station-town and a port-town on the river of Edo, and then became the commercial and political center of its vicinity. By the expansion of Tokyo, Matsudo came to be joined with the residential districts, and turned into a satellite city of Tokyo.
In accordance with the change of the city functions, Matsudo had several different forms as follows.
City Functions City Forms
1st period station-town in a line along the road.
2nd period local center town occupying the low-land between
Edo river and the railway.
3rd period satellite city extending to the east of the
railway.

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