[1]HUANG Tingting,LU Debin,YANG Jian.Comprehensive Evaluation and Analysis on Spatiotemporal Variation of Cultivated Land on Provincial Scale Based on GIS —A Case Study in Guizhou Province[J].Research of Soil and Water Conservation,2017,24(03):253-257.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 03
Page number:
253-257
Column:
Public date:
2017-06-28
- Title:
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Comprehensive Evaluation and Analysis on Spatiotemporal Variation of Cultivated Land on Provincial Scale Based on GIS —A Case Study in Guizhou Province
- Author(s):
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HUANG Tingting1,3, LU Debin1,2, YANG Jian1
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1. Institute of Economics and Management, Tongren University, Tongren, Guizhou 554300, China;
2. School of Geographical Sciences, East China Normal University, Shanghai 200241, China;
3. College of Economics and Management, Southwest University, Chongqing 400715, China
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- Keywords:
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GIS; cultivated land quality; spatiotemporal variation; model analysis; Guizhou Province
- CLC:
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F301.21
- DOI:
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- Abstract:
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Cultivated land quality is essential to national food safety, as well as the sustainable development of social economy and eco-environment.Thus, strengthening cultivated land protection plays a significant role in reality. Typically, the protection is conducted by two techniques, as cultivated land evaluation and space-time evolution analysis. An empirical research had been done on the change of cultivated land in Guizhou Province from 1989 to 2010 through the application of GIS spatial analysis technology which involved in the evaluation index system of cultivated land quality, the combination of cultivated land optimization model and ideal point method, relative change rate was used to explore the quality and spatiotemporal evolution of cultivated land. The results showed that during that period, the quality of cultivated land in Guizhou was improved obviously and the area of which increase to 9 202.69 km2 including the first-class cultivated Land 7 854.11 km2, the second-class cultivated Land 2 054.80 km2 and the third-class cultivated land 1 273.09 km2. Moreover, it was pointed out that farmland soil, slope configuration, water loss and soil erosion, ‘Four Modernization’ process, land exploitation, construction, cultivated land protection, returning farmland to forest project, public opinion and natural, economic and social factors were the main elements to drive the change on cultivated land quality and spatiotemporal form.