| Health diagnosis of land use system based on entropy-weighted extentic matter-element model——A case study of Hexi Corridor |
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| DOI：10.7606/j.issn.1000-7601.2017.01.38 |
| Key Words: land use matter-element model entropy-weighted health diagnosis Hexi Corridor |
| Author Name | Affiliation | | LU Zheng | College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CHEN Yin | College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WEI Ping | College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WANG Dong | College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| By constructing the index system based on PSR model, we used entropy-weighted extentic matter-element model to evaluate the health of land use system in Hexi Corridor. The results are as follows: (1) According to the extension of the classical domain values of matter element model, the overall land use system in Hexi Corridor in N03, health level of “critical state”, health level to maintain stability from 2000 to 2014. (2) The health level of the land system in the Hexi Corridor has a certain regularity, showing a trend of decreasing gradually from the middle to both sides. (3) The Hexi Corridor ecological environment fragile. Forest coverage rate and the degree of soil and water loss and soil salinization rate important factor which restricts the healthy level of land use system. It was concluded that entropy-weighted extentic matter-element modecan be applied to land use system health evaluation. It can effectively avoid the interference of human factors, and objectively evaluate the relationship between the various factors of regional land use system health, reveal the level of each index, and mine specific health problems in land use system. |
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