[1]JING Rui,ZHANG Bangbang,ZHAO Minjuan,et al.Spatiotemporal Characteristics of Intensive Cultivated Land Use in China in Recent 35 Years[J].Research of Soil and Water Conservation,2019,26(05):353-358,365.
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Spatiotemporal Characteristics of Intensive Cultivated Land Use in China in Recent 35 Years
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 05
Page number:
353-358,365
Column:
Public date:
2019-09-06
- Title:
- Spatiotemporal Characteristics of Intensive Cultivated Land Use in China in Recent 35 Years
- Keywords:
- intensive cultivated land use; spatiotemporal characteristics; variation tendency; principal components analysis; China
- CLC:
- F301.2
- DOI:
- -
- Abstract:
- In order to analyze the spatiotemporal characteristics of intensive cultivated land use and explore the key nodes of its change, the evaluation indexes system was established, which included 17 specific indicators using the provincial panel data from 1985 to 2016. The principal component analysis (PCA) was adopted to comprehensively evaluate the intensive utilization level of cultivated land, dynamic change model was used to explain variation differences. The results indicate that:(1) on the national scale, the degree of cultivated land intensive use shows a trend of ‘slow rise-rapid increase’; (2) on the regional scale, the intensive use level of cultivated land has obvious differentiation characteristics; cultivated land intensity is highest in the eastern region, followed by the central region, the northeast, southwest and northwestern regions need to be improved; (3) on the provincial scale, cultivated land intensity is greatly affected by the natural geographical conditions and economic development, and the regional differences are obvious; (4) with the slower growth of cultivated land intensification, the reduction of production factors and the adjustment of national policies, sustainable intensification on the basis of the balance of ‘production-ecology’ are the future development direction of cultivated land utilization. Therefore, the attention should be paid to the ecological and environmental benefits and risks of intensive cultivated land use in the future, so as to better promote the sustainable and intensive use of cultivated land.
- References:
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