北华大学学报（自然科学版）2017，Vol.18Issue(3)：395-400,6.DOI:10.11713/j.issn.1009-4822.2017.03.027
福建顺昌林地生态脆弱性评价
Forestland Ecological Vulnerability Evaluation in Shunchang County,Fujian Province
摘要
Abstract
This paper established an ecological vulnerability assessment index system by correlation analysis taking Shunchang County in Fujian Province as sample. Quantitative assessment of ecological vulnerability on the study area was realized through principal component analysis method and comprehensive index method. Then the spatial distribution characteristics of ecological vulnerability was analyzed. The results showed that there were 5 factors selected as evaluation index including slope, soil k-factor, the average annual precipitation, NDVI and population density,their weights were 0. 1955,0. 1409,0. 1192,0. 3021,0. 2423,respectively. The grades of ecological vulnerability were divided into micro level, light level, moderate level, heavy and extreme level, the vulnerability area of which covered 15. 83%,40. 92%,24. 50%,13. 25% and 5. 50%,respectively. The results also demonstrated the overall was in the light level of vulnerability. The area was in the over heavy level mainly distributing the area of low slope,low altitude,low vegetation coverage and human disturbance,which is the key area to prevent landslides and soil erosion.关键词
生态脆弱性/林地/主成分分析/顺昌县Key words
ecological vulnerability/forestland/principal component analysis/Shunchang County分类
农业科技引用本文复制引用
钟兆全..福建顺昌林地生态脆弱性评价[J].北华大学学报（自然科学版）,2017,18(3):395-400,6.基金项目
福建省高校产学研合作项目(2015N5010). （2015N5010）
