Trend and Driving Factors of Cultivated Land Use Change in Longdong Loess Plateau

ZHANG Xi biao; SHANGGUAN Zhou ping

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Trend and Driving Factors of Cultivated Land Use Change in Longdong Loess Plateau

- Trend and Driving Factors of Cultivated Land Use Change in Longdong Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 25, Issue 4, Pages: 16-20(2006)
- 作者机构：
  
  1. 陇东学院生命科学系西北农林科技大学水土保持研究所, 甘肃庆阳745000,陕西,712100
  2. ,陕西,西安,710048
  3. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2006
- 稿件说明：
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ZHANG Xi biao, SHANGGUAN Zhou ping. Trend and Driving Factors of Cultivated Land Use Change in Longdong Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2006, 25(4): 16-20.
DOI：

ZHANG Xi biao, SHANGGUAN Zhou ping. Trend and Driving Factors of Cultivated Land Use Change in Longdong Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2006, 25(4): 16-20. DOI：

摘要

利用1986-2002年陇东地区耕地统计资料

对该区耕地资源利用与变化的基本特征、耕地数量变化的基本过程、空间差异、耕地流向以及耕地数量变化的主要驱动机制进行了分析。结果表明:(1)16a来陇东地区耕地数量呈明显的波动减少趋势

经历了缓慢减少-急剧减少-缓慢减少的变化过程。(2)耕地的主要流向是工矿用地、居民点和各类交通用地以及果园;耕地的增加主要是未利用土地的开垦。(3)经济发展、人口增长和政策是耕地面积减少的主要宏观驱动因子

耕地变化过程中的明显突变与国家宏观政策背景相关联

耕地快速减少在发生时间上与经济的快速增长基本同步

在空间分布上与地区经济发展速度水平的差异相一致。

Abstract

The characteristics of arable-land resources and utilization

the basic processes and regional differences of changes in arable-land areas were revealed according to the statistics data of arable-land areas from 1986 to 2002 and the detailed investigation of land use in the recent 5 years.Also

the driving mechanism for the changes in the cultivated land areas was discussed.The main conclusions were as follows.(1) There was a trend of obvious fluctuant decrease in arable-land areas in the past 20 odd years.The changes of arable-lands underwent the process from a gentle decrease to a sharp decrease

then to a slow decrease.(2) The decreased arable-lands were mainly inverted to project and mine lands

residential areas

various traffic lands and orchards.The increased arable-lands mainly came from the exploitation and reclamation of non-utilized lands and the arrangement and resumption of project and mine lands.(3) The economic development

population growth and policies were the dominant macro-driving factors for the decrease in cultivated land areas.The obvious break in the change process of arable-lands was related to the national macro-policies.The rapid decrease of cultivated land areas coincided in time with the overheated economic growth resulting from the direct investment in fixed assets.Spatial distribution of the decrease in arable-lands matched the differences in speed and scale of economic growth in different regions of the Longdong Loess Pleteau.

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