| 摘要: 从生态系统完整性要求和评价结果实用性角度出发，论述了生态安全评价单元的确定，并将河南省18个地市作为评价单元，结合农用地生态安全评价特点，利用多因素综合评定法和系统聚类法相结合方法，借助MAPGIS和SPSS软件对河南省18个评价单元进行生态安全评价，评价结果在评价单元较少情况下可体现各级别差异和级别内评价单元间良好的相关性。 |
| 关键词: 河南省 农用地 生态安全评价 评价方法 |
| 中图分类号: |
| 基金项目: |
|
| Evaluation on agricultural land ecological security of Henan Province |
|
TIAN Ke-Ming1, WANG Guo-Qiang2
|
|
1.Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China;2.Institute of Geography,Henan Academy of Sciences,Zhengzhou 450052,China
|
| Abstract: On the base of existing research achievements and according to the integrity of the eco system and the practicality of evaluating results,this paper describes the division of evaluating units and evaluates the ecological security of Henan Province's agricultural land.Compared with the special characters of the ecological security evaluation of agricultural land,each of the existing evaluating methods used for the land evaluation has its shortcomings.This paper integrates the method of poly element with the method of systematical polymerization,aided by the software of MAPGIS and SPSS to evaluate the ecological security of agriculture land of 18 evaluated units in Henan Province.The evaluating results reflect not only the difference among agriculture land of various levels,but also the obvious relationships among units at the same level on the condition of lack of evaluating units. |
| Keyword: Henan Province,Agricultural land,Ecological security evaluation,Evaluating method |
