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Design and Applications of Land Resources and Ecological Environment Information System: A Case Study of Zigui County in the Three Gorges Area of China

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Pedosphere 2002年第4期12卷 373-381页

作者： ZHOUYONG WANGSHANQIN DONGYUANHUA YANGLINZHANG insitituteofsoilscience theChineseAcademyofSciencesP.O.Box821Nanjing210008（China） KeyLabofSubtropicalSoilResourcesandEnvironment theMinistryofAgricultureWuhan430070（China）

The design and applications of a land information system built upon ARC/INFO and ArcView are presented. The proposed system not only maintains all the advantages of the more conventional implementations but also enhances them in the following ways: 1) the application program interfaces (API) are used to transmit data and messages among different parts of the system; 2) the integrated system can support studies on land evaluations and ecological analyses by efficient management of attribute and spatial data and 3) correspondingly, spatial records and attributive records are linked by the same identifiers (ID). A case study application in Zigui County of the Three Gorges Area in China demonstrates that the system could employ land-use maps and land property data to predicate and analyze the land utilization changes in the past, present and future. The ecological environment analysis can be carried out with the data of land, economics and terrain map used, showing that the system can be widely applied, especially to survey land and environment resources in the countryside area.

关键词： attribute database ecological environment land resources spatial database

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Pedodiversity analysis in Hainan Island

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Journal of Geographical Sciences 2003年第2期13卷 181-186页

作者： ZHANGXuelei CHENJie ZHANGGanlin TANManzhi J.J.Ibanez insitituteofsoilscience CASNanjing210008China CentrodeCienciasMedioambientales CSICMadrid28006Spain

Diversity indices and abundance distribution models are statistical tools which ecologists have applied for decades for analyzing the intrinsic regularities of various ecological entities. In this work, we have applied these techniques to use the notions such as pedodiversity (as an example of geodiversity in a broad sense), in order to detect the differences and similarities between both natural resources, biological and non-biological. The discussion has mainly been conducted through the study of landform based pedodiversity analysis applied to SOTER digital databases in Hainan Island, China. The main analytical methods include indices of richness S that are the number of the categories (SOTER units relating to different soils in this work), indices based on proportional abundance of categories H' and E which are not only the number but also their relative abundance (in our case, the relative area occupied by each pedotaxa) is taken into account, models of the distribution of abundance of categories that provide the most complete description but also the least abridged and GIS mapping to show the spatial variation digitally.

关键词： Hainan Island SOTER digital databases pedodiversity landforms abundance distribution models GIS spatial variation CLC number:S15 P208

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