[1]LI Saibo,XU Liping,FANG Manman,et al.Analysis of Correlation Between Farmland Landscape Fragmentation and Utilization Efficiency in Manas River Basin, Xinjiang Uygur Autonomous Region[J].Research of Soil and Water Conservation,2017,24(01):311-316.
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Analysis of Correlation Between Farmland Landscape Fragmentation and Utilization Efficiency in Manas River Basin, Xinjiang Uygur Autonomous Region
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 01
Page number:
311-316
Column:
Public date:
2017-02-28
- Title:
- Analysis of Correlation Between Farmland Landscape Fragmentation and Utilization Efficiency in Manas River Basin, Xinjiang Uygur Autonomous Region
- Keywords:
- farmland landscape; fragmentation; utilization efficiency; DEA; SPSS
- CLC:
- F301.2;F323.21;S181
- DOI:
- -
- Abstract:
- We calculated the level of farmland landscape fragmentation by ecology landscape pattern index in Manas River Basin, and used the method of DEA-Malmquist productivity index to measure the pure technical efficiency and scale efficiency of farmland use and relationship between the level of farmland landscape fragmentation and pure technical efficiency, scale efficiency, comprehensive efficiency of farmland use. The results showed that pattern of farmland of the study area had tended gradually to continuous farmland landscape from the early small dominated patches and fragmentized pattern in space. Farmland landscape comprehensive efficiency in the two decades had the trend of ‘reduce—increase—reduce’ and farmland productivity was the trend of ‘increase—reduces—increase’. Farmland productivity and technical change trend in the two decades were similar. Landscape edge levels of complexity and farmland landscape scale of arable land had negative effects on technical efficiency and total factor productivity. Farmland landscape irregular shape hindered the development of agriculture and agricultural machinery and caused the loss of agricultural management efficiency, which enhanced virtually the costs to use mechanical material and reduced the labor productivity and land productivity of grain production and cost output ratio.
- References:
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1900-01-01