Integration of soil information system (SIS) and interactive self-organizing data (ISODATA) was studied to establish proper agricultural developing zones in red soil region of southern China which are of crucial impor...Integration of soil information system (SIS) and interactive self-organizing data (ISODATA) was studied to establish proper agricultural developing zones in red soil region of southern China which are of crucial importance to farmers, researchers, and decision makers while utilizing and managing red soil resources. SIS created by using ARC/INPO was used to provide data acquisition, systematic model parameter assignment, and visual display of analytic results. Topography, temperature, soil component (e.g., organic matter and pH) and condition of agricultural production were selected as parameters of ISODATA model. Taking Longyou County, Zhejiang Province as the case study area, the effect of the integration and recommendations are discussed for future research.展开更多
The Three Gorges Project attracts worldwide attention because of the Three Gorges migrants, and the agriculture of the Three Gorges Reservoir Area is a foundation for the development of the Three Gorges migrants. The ...The Three Gorges Project attracts worldwide attention because of the Three Gorges migrants, and the agriculture of the Three Gorges Reservoir Area is a foundation for the development of the Three Gorges migrants. The Three Gorges Reservoir Area is situated at the mountainous area with bad agricultural development conditions and relatively low levels of development. As a result, the large-scale migration fias special influence on its agricultural development, which has attracted much attention. The paper analyzes influence that the migrants have forced on its agricultural development based on the scientific data, and makes some explorations on the models that are suitable for the development of mountainous agriculture in the Three Gorges Reservoir Area.展开更多
Based on the provincial units evaluation, this paper makes an assessment forsustainable developing capability of the integrated agricultural regionalization in China. At first,an index system of agricultural sustainab...Based on the provincial units evaluation, this paper makes an assessment forsustainable developing capability of the integrated agricultural regionalization in China. At first,an index system of agricultural sustainable development in China is built up, which includes 5supporting subsystems of agricultural resources, agricultural development, environment andecosystem, rural society, sciences-education and management. We selected 95 factors on provinciallevel as basic indexes. Second, a relative assets/debt assessing method is used to gain relative netassets values (relative superiority) of every provincial unit, which are as supporting data forassessment. We also overlaid the Administrative Divisions Map of China and the Map of IntegratedAgricultural Regionalization of China by Geography Information System (GIS) to gain the area unitsof assessment. Third, according to the relative coherence principle of regionalizaticn, we transformadministration units to natural units through homogenizing all provincial relative net assetsvalues in every agricultural assessing unit. After making order and grade, we complete thesustainable developing capability assessment to integrated agricultural regionalization in China.The assessing outcome shows that the total sustainable agricultural developing capability of Chinais not high. Only about 1 /3 in number or in area has reached the level of agricultural sustainabledevelopment. The relative net assets values exists a reducing trend from East China to West China.It needs a long period and great efforts to realize sustainable agricultural development over allChina. Finally, there is a discussion to the study method.展开更多
文摘Integration of soil information system (SIS) and interactive self-organizing data (ISODATA) was studied to establish proper agricultural developing zones in red soil region of southern China which are of crucial importance to farmers, researchers, and decision makers while utilizing and managing red soil resources. SIS created by using ARC/INPO was used to provide data acquisition, systematic model parameter assignment, and visual display of analytic results. Topography, temperature, soil component (e.g., organic matter and pH) and condition of agricultural production were selected as parameters of ISODATA model. Taking Longyou County, Zhejiang Province as the case study area, the effect of the integration and recommendations are discussed for future research.
基金the Project of Construction Committee of Three Gorges Reservoir (Grant No. SX[2002]00401)Chinese Academy of Science (Grant No. KZCX2-SW-319-01).
文摘The Three Gorges Project attracts worldwide attention because of the Three Gorges migrants, and the agriculture of the Three Gorges Reservoir Area is a foundation for the development of the Three Gorges migrants. The Three Gorges Reservoir Area is situated at the mountainous area with bad agricultural development conditions and relatively low levels of development. As a result, the large-scale migration fias special influence on its agricultural development, which has attracted much attention. The paper analyzes influence that the migrants have forced on its agricultural development based on the scientific data, and makes some explorations on the models that are suitable for the development of mountainous agriculture in the Three Gorges Reservoir Area.
文摘Based on the provincial units evaluation, this paper makes an assessment forsustainable developing capability of the integrated agricultural regionalization in China. At first,an index system of agricultural sustainable development in China is built up, which includes 5supporting subsystems of agricultural resources, agricultural development, environment andecosystem, rural society, sciences-education and management. We selected 95 factors on provinciallevel as basic indexes. Second, a relative assets/debt assessing method is used to gain relative netassets values (relative superiority) of every provincial unit, which are as supporting data forassessment. We also overlaid the Administrative Divisions Map of China and the Map of IntegratedAgricultural Regionalization of China by Geography Information System (GIS) to gain the area unitsof assessment. Third, according to the relative coherence principle of regionalizaticn, we transformadministration units to natural units through homogenizing all provincial relative net assetsvalues in every agricultural assessing unit. After making order and grade, we complete thesustainable developing capability assessment to integrated agricultural regionalization in China.The assessing outcome shows that the total sustainable agricultural developing capability of Chinais not high. Only about 1 /3 in number or in area has reached the level of agricultural sustainabledevelopment. The relative net assets values exists a reducing trend from East China to West China.It needs a long period and great efforts to realize sustainable agricultural development over allChina. Finally, there is a discussion to the study method.
