研究论文
何隆华,杨宏伟,周修萍.地理信息系统与生态系统对酸沉降相对敏感性评价[J].环境科学学报,1998,18(2):177-180
地理信息系统与生态系统对酸沉降相对敏感性评价
- GEOGRAPHIC INFORMATION SYSTEM AND THE ESTIMATION OF ECOSYSTEM’S RELATIVE SENSITIVITY TO ACID DEPOSITION
- 基金项目：
- 作者
- 单位
- 何隆华
- 中国科学院南京地理与湖泊研究所, 南京 210008
- 杨宏伟
- 中国科学院南京地理与湖泊研究所, 南京 210008
- 周修萍
- 国家环保局南京环境科学研究所
- 摘要：叙述了地理信息系统(GIS)在生态系统对酸沉降相对敏感性评价中的应用。通过数字化地图建立了4种生态要素的基础评价数据库；讨论了生态系统因子对酸沉降的敏感分级、敏感性评价系统和评价模型。最后介绍了生态系统对酸沉降敏感指数制图。
- Abstract：As a kind of spatial analysis tool and spatial modeling tool, geographical information system shows to be a very useful thing in analyzing environmental problems. In this study, GIS technology is used in estimating ecosystem′s relative sensitivity to acid deposition. Four variable layers, i.e., base rock, soil buffering capacity, vegetation type, and soil humidity, are used in the estimation. Five grades are separated in this research. The study also demonstrates the multi layer spatial analysis method and sensitivity mapping in sensitivity analysis. GIS technique will help decision makers in the drafting of emission control measures. If a finer resolution is used, more detailed sensitivity zones will be resulted which reflects the major environmental features.
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