| Assessment of agro-ecosystem health of main agricultural area in eastern Qinghai |
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| DOI：10.7606/j.issn.1000-7601.2012.01.35 |
| Key Words: agro-ecosystem health assessment combination weights eastern Qinghai |
| Author Name | Affiliation | | ZHANG Liang | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | CHEN Kelong | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | CAO Shengkui | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | SU Maoxin | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | YAN Tingfu | Qinghai Haidong Statistical Team, National Bureau of Statistics, Xining 810008, China | | LU Hui | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | MA Jin | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China | | LU Baoliang | Department of Geography and Resource Environment, Qinghai Normal University, Xining 810008, China |
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| Abstract: |
| By choosing the county Agro-ecosystem of main agricultural area in eastern Qinghai as study area, 17 indicators were selected and indices system was built regarding vigor, organic structure, resilience, ecosys
tem service for agro-ecosystem health evaluation. The indices weights were determined by an integrated methods of AHP weighing and entropy weighing, finally, the health status of county-scale agroecosystem was evaluated in eastern Qinghai
based on a comprehensive evaluation model. The results showed that, the health indices vary in 0.300～0.600 for 9 counties in the study area, where Ping′an county is in the “Relatively healthy” state, 4 counties of Huzhu, Minhe, Huangzh
ong and Datong are in the “Sub-healthy” state, and the remaining 4 counties are in the “Unhealthy” state. The analysis showed that drought is the biggest bottleneck of agricultural production, so the major countermeasures for sustainable development of agricultural production is to “broaden sources of income and reduce expenditure” for water resources and to establish an effective mechanism for ecological compensation. |
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