陕西省耕地数量变化与动因分析

Study on the Shaanxi Province cultivated land quantity changes and motivations

基于1991—2011年的统计数据,采用定量分析方法对陕西省近20年来耕地数量变化及其动因展开分析。结果表明:陕西省耕地资源的利用状况总体上仍比较粗放,耕地的产出率仍比较低,流失耕地中的大多数均为城市边缘以及铁路、公路等交通沿线的优质耕地资源,同时由于省内各个区域之间在发展战略上存在着较大的差异,导致了各个地市耕地流失的速度有所不同,关中地区和陕北地区是省内耕地资源流失较为严重的地区。结论:(1)耕地供需矛盾将更加严峻,耕地保护的压力较大;(2)优质耕地资源流失较多,耕地的总体质量逐步下降;(3)保护与合理利用现有耕地资源,提高耕地生产效率应引起高度重视。

Based on statistical data from 1991 to 2011,changes in the quantity of cultivated land and their motivations to analyze of Shaanxi province were studied by quantitative analysis methods.The current condition of cultivated land resource utilization in Shaanxi is far from being satisfactory.Through analysis,it has been found out that the utilization still remains in a rough stage,while the agriculture yields is lower than expectation.Among the lost lands,most are fertile cultivated lands which lie on the edge of the cities and along railways and highways.In the mean time,due to the strategy differences in different developing areas in the province,the speed of land loss in each area is different.The loss of the land in the center and northern areas of Shaanxi is more serious.It is concluded that（1） cultivated land supply and demand will be even more severe;（2） loss of more high-quality resources,the gradual decline of the overall quality of cultivated land;（3） protection and rational use of the existing resources,improve the production efficiency of cultivated land.