Assession of Ecological Vulnerability in Resource Enrichment Areas of Northern Shaanxi Province Based on Landscape Pattern -A Case Study of Shenmu County in Shaanxi Province
FENG Jianmin, GUO Lingxia, LI Xiaohua. Assession of Ecological Vulnerability in Resource Enrichment Areas of Northern Shaanxi Province Based on Landscape Pattern -A Case Study of Shenmu County in Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 271-276.
FENG Jianmin, GUO Lingxia, LI Xiaohua. Assession of Ecological Vulnerability in Resource Enrichment Areas of Northern Shaanxi Province Based on Landscape Pattern -A Case Study of Shenmu County in Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 271-276. DOI: 10.13961/j.cnki.stbctb.20150906.001.
[Objective] Quantitative assessing the spatial difference of ecological vulnerability in Shenmu County of Northern Shaanxi Province in order to provide a support for land use planning and environmental protection. [Methods] Using landscape fractal dimension
fragmentation
dominance
connectivity
human disturbance intensity and topographic index
assessment model was developed from the aspects of ecological supporting pressure
ecosystem sensitivity
and ecological resilience
and entropy weight method was used. [Results] Among the various types of ecosystems
woodland had the highest ecological vulnerability
the grassland and farmland
while the water body and unused land had the lowest one. In the entire 22 towns
Dianta and Yongxing had the highest ecological vulnerability
while Dabaodang and Erlintu had the lowest one. [Conclusion] Ecological vulnerability showed gradually increasing trend from west to east
and from south to north. Moreover
land use pattern
topography
mining and settlement distribution were the major factors affecting the spatial pattern.
Tixier J, Dandrieux A, Dusserre G, et al. Environmental vulnerability assessment in the vicinity of an industrial site in the frame of ARAMIS European project[J]. Journal of Hazardous Materials, 2006,130(3):251-264.