Research has recently begun on the optimal management of green resources as they relate to regional social characteristics. While geographic information systems(GIS) are often used to analyze land use management, green resource data can be difficult to use because there are many types of these data and they are often expressed indifferent coordinate systems. This report presents a methodology for applying existing green resource data to research using the GIS software, GRASS. The Hyogo Prefectural Government has constructed a "Basic Environment Information" database on its mainframe computer. Conversion programs were developed to import the data into GRASS and methods for using the data were examined. Results show that the data can be imported and thereby be available for green resource research using GRASS.

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A simple water collector was devised for monitoring of the stemflow effect on soil ecosystem. The collector catches the stemflow and reciprocal cup gives the flow rate as pulse count. The stemflow is then divided into two sections, one with ion exchange resin and the other with grass beads. Both cation exchange resin and anion exchange resin were mixed and the beads were used as a control. Stemflow in a Cryptomeria japonica forest was collected and introduced to the soil microcosm after passing ion exchange resin or grass beads. The resin treatment changed the water quality; NO_3^-, SO_4^<2->, and Cl^- concentrations were reduced and pH was slightly decreased. Soil respiration of the microcosm was slightly enhanced by the grass beads treatment than by the resin treatment.

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The object of this paper is to investigate hybridity of Mizunara (Q. crispula), Konara (Q. serrata) and Kashiwa (Q. dentata) inhabiting Chugoku district. We set up plots of thses species in natural mixed stands at the foot of Mihara Mountain (700 meters above the sea level) and put the collected leaves from 203 individuals in three plots. Then we investigated their hair types of the leaves using an scanning electron microscopy (SEM). From the result of classification based on their hair types, it was found that Mizunara type account for 37.9%, Konara type 24.6%, Kashiwa type 13.3% and middle type is 25.2%.

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We investigated leaf hair type of Quercus species in natural mixed stand at foot of Mihara Mountain and from the result of classification on based on their hair types using, it was found that middle types of Mizunara, Konara and Kashiwa are about 25% of 203 individuals. Following this investigation, we measured 14 morphological traits of them with dijitizer. For further analysis on the traits of hair types of three species, we examined Mizukonara (Q. crispuloserrata), a middle type between Mizunara and Konara, Kashiwamodoki (Q. × anguste-lepidota) between Mizunara and Kashiwa, and Kogashiwa (Q. × takatorensis) between Konara and Kashiwa. The result from an analysis of variance on the three species and those middle species on 14 traits indicated that there were significant difference among 3 species and those middle types at many traits concerned in discerment of species. It was shown that these significant result of middle types lies of types between the two species. As a result, became clear that the middle types of two species were present.

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