| Cite this article: | 董曼慧,夏卫生,李丽,等.湖南省坡耕地区耕地质量时空分异特征及管理分区研究——以凤凰县为例[J].灌溉排水学报,2022,(12):-. |
| dongmanhui,xiaweisheng,lili,et al.湖南省坡耕地区耕地质量时空分异特征及管理分区研究——以凤凰县为例[J].灌溉排水学报,2022,(12):-. |
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| Study on Spatio–Temporal Differentiation and Management Zoning of Cultivated Land Quality in Slope Farmland Area of Hunan Province – Taking Fenghuang County as an Example |
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dongmanhui, xiaweisheng, lili, zhouhao
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College of Geographic science, Hunan Normal University
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| Abstract: |
| 【Objective】As an important part of agricultural resources in hilly areas of Hunan Province, it is of great reference significance to explore the spatial-temporal differentiation pattern and change causes of the comprehensive quality of cultivated land in the region. 【Method】In this study, using AHP, membership function model, comprehensive index model and local autocorrelation model, with the second national land survey in fenghuang county, and the third national land survey data of arable land for reproduction, the cultivated land quality in Fenghuang County in 2010 and 2020 was quantitatively evaluated, and the characteristics and influencing factors of temporal and spatial differentiation were analyzed. 【Result】1) The cultivated land quality in Fenghuang County showed an upward trend from 2010 to 2020, and the cultivated land was mainly of medium quality. 2) The interval distribution and spatial distribution of cultivated land quality grade in Fenghuang County were similar to each other. The change of interval distribution was mainly caused by the change of farmland management and nutrient status, while the change of spatial distribution was mainly caused by the construction of high-standard farmland and sloping farmland. 3) The spatial autocorrelation of cultivated land quality in Fenghuang County, enhanced inter-regional mobility of production factors, and reduced inter-regional differences in cultivated land quality were the reasons for the changes of High-High and Low-Low distribution patterns. 4) The comprehensive quality of cultivated land in Fenghuang County in 2020 increased about 0.08 grades compared with that in 2010. The implementation of slope cultivated land management and other engineering measures in the slope cultivated land area according to local conditions has a certain positive impact on the quality of cultivated land. In the future, the quality maintenance and improvement of slope cultivated land can be guided by the results of quality management zoning. |
| Key words: slope farmland area; cultivated land quality; spatio-temporal variance; Fenghuang County |
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