Spatial-temporal Changes of Cultivated Land Use at Provincial Level Since Second National Land Survey in China

Zhao Yuheng; Tan Yongzhong

doi:10.13961/j.cnki.stbctb.2020.01.030

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Spatial-temporal Changes of Cultivated Land Use at Provincial Level Since Second National Land Survey in China

- Spatial-temporal Changes of Cultivated Land Use at Provincial Level Since Second National Land Survey in China
- Bulletin of Soiland Water Conservation Vol. 40, Issue 1, Pages: 204-212(2020)
- 作者机构：
  
  1. 浙江大学公共管理学院土地管理系,浙江,杭州,310058
  2. 浙江大学土地与国家发展研究院,浙江,杭州,310058
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.01.030
  CLC： F301.2
- Published：2020
- 稿件说明：
移动端阅览
Zhao Yuheng, Tan Yongzhong. Spatial-temporal Changes of Cultivated Land Use at Provincial Level Since Second National Land Survey in China[J]. Bulletin of Soiland Water Conservation, 2020, 40(1): 204-212.
DOI：

Zhao Yuheng, Tan Yongzhong. Spatial-temporal Changes of Cultivated Land Use at Provincial Level Since Second National Land Survey in China[J]. Bulletin of Soiland Water Conservation, 2020, 40(1): 204-212. DOI： 10.13961/j.cnki.stbctb.2020.01.030.

摘要

[目的

]

分析和研究全国第二次土地调查（简称"二调"）以来各省级空间地域单元的耕地利用现势分布和省域耕地利用的时空特征，以期寻求促进耕地资源可持续利用的针对性政策改进措施。[方法

]

基于2009-2016年全国和省级年度土地利用现状数据，利用GIS空间分析、数学指数模型等方法进行研究。[结果

]

①2009-2016年间中国耕地面积总体呈减少趋势，其中旱地减少面积多于水田、水浇地增加面积，耕地总面积共减少4.64×10

，但基于各省域间资源禀赋的异质性和社会经济发展差异，耕地面积分布与利用呈现出明显的差异性。②受不同阶段耕地保护政策的影响，耕地面积在时间和空间不同维度上均或多或少受政策调控，这是形成耕地利用时空变化格局的重要原因。③中国的耕地保护政策需要在耕地利用的时空变化分析基础上进一步加以科学优化，并积极引导区域耕地利用与资源环境协调发展。[结论

]

现阶段耕地资源利用具有较强的空间、时间异质性和动态变动性特征，而全国省域耕地利用变化过程受到全局性和区域性政策演进与人类活动定向干预的双重作用，亟需在及时跟进和把控耕地变化特征差异的基础上，通过适时合理的政策调控实现对省域耕地资源差异化保护和利用，以保障粮食安全和协调资源匹配，促进区域可持续发展。

Abstract

[Objective] The spatial distribution and the spatial-temporal changes of cultivated land use characheritics were analyzed at provincial level since the second national land survey in China. The aim was to promote sustainable use of cultivated land

to make specific adjustments on the improvement measures.[Methods] A spatial GIS method

an index model and other scientific methods were applied to the data on the national and provincial annual land-use from 2009 to 2016.[Results] ① The total area of cultivated land in China decreased during the period from 2009 to 2016. The decrease of area in dry land was higher than the increase of that in paddy fields and irrigated land and the total area of cultivated land decreased by 4.64×105 hm2. The distribution and utilization of cultivated land areas varied with the difference in resource funding and socio-economic development in the provinces. ② Spatial and temporal policies on cultivated land protection largely contributed to temporal and spatial changes in cultivated land use. ③ The current cultivated land protection policy needed to be optimized based on scientific data and the analysis of the temporal and spatial changes in the use of cultivated land in China. The policy was needed to manage the development of regional cultivated land use and the environment.[Conclusion] The current cultivated land resources have substantial spatial and temporal heterogeneity and dynamic features. The change of cultivated land at the provincial level in China is affected by the evolution of global and regional policies and human intervention. It is necessary to implement appropriate and reasonable policy regulations taking into account the differences in the development of cultivated land use at the provincial level to accomplish the protection and utilization of cultivated land. Proper regulations will ensure food security

coordinate resource matching

and promote regional sustainable development.

关键词

Keywords

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