[1]GENG Lili,WANG Jiaxue,DAI Yunchuan,et al.Assessment of the regional Ecoenvironmental Quality in the Main Basins of the Peak Forest and Peak Cluster Area of Southeast Yunnan[J].Research of Soil and Water Conservation,2016,23(03):204-208,213.
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Assessment of the regional Ecoenvironmental Quality in the Main Basins of the Peak Forest and Peak Cluster Area of Southeast Yunnan
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 03
Page number:
204-208,213
Column:
Public date:
2016-06-28
- Title:
- Assessment of the regional Ecoenvironmental Quality in the Main Basins of the Peak Forest and Peak Cluster Area of Southeast Yunnan
- Keywords:
- southeast Yunnan; main basin; ecoenvironmental quality; assessment
- CLC:
- X821
- DOI:
- -
- Abstract:
- We used the Fragstats 3.4, the GIS spatial analysis method, combined with the DEM data in Yunnan Province and the Landsat image data, and the index of landscape pattern which has rather obvious ecological significance to assess the regional ecoenvironmental quality in the main basins of the peak forest and peak cluster area of southeast Yunnan. The results show that: (1) the matrix landscape is arable land of the main basin, the area ratio is between 38.13%～77.17%, in which shrub land and grassland on the landscape have the great influence on the overall situation, wetlands and artificial surface distribution are more scattered, and there is even no distribution of wetlands; (2) the level of ecoenvironmental quality is the highest in Babao, Guangnan and Qiubei, and the proportion of the shrub land is the highest, the grassland is higher, respectively 35.51%, 30.61% and 24.50%, otherwise, the level of ecoenvironmental quality is the lowest in Mengzi, Shadian and Kaiyuan, the proportion of shrub land is the lowest in Kaiyuan Basin, which is 2.70%; (3) the main basins have the bigger diversity index, the overall spatial pattern of landscape heterogeneity is higher, and shrub land and grassland have the higher contribution rate to the ecoenvironmental quality, on the contrary, the other basins have the difference situation; (4) the landscape fragmentation index and the ecological environment have significant negative correlation; (5) the contribution rates of shrub land and grassland to the ecological environment quality of the basin, and index of EQI are positively correlated.
- References:
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