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当前位置: 首页 > 文章 > 基于粮食安全视角的干旱半干旱地区耕地压力动态变化的定量分析——以甘肃省酒泉市为例 安徽农业科学 2010,38 (1) 554-557
Position: Home > Articles > Quantitative Analysis of Dynamic Change of Cultivated Land Pressure in Arid and Semi-arid Region Based on Food Security Journal of Anhui Agricultural Sciences 2010,38 (1) 554-557

基于粮食安全视角的干旱半干旱地区耕地压力动态变化的定量分析——以甘肃省酒泉市为例

作  者：
付士波;王海鸿;马琼
单  位：
兰州大学管理学院
关键词：
粮食安全;耕地压力;干旱半干旱地区
摘  要：
以甘肃省酒泉市为例,在介绍研究区域概况的基础上,依据酒泉市土地利用总体规划修编前期调研资料、酒泉市第2次全国土地调查数据、1997~2004年酒泉市土地利用变更调查数据、1997~2007年《甘肃统计年鉴》和《酒泉市统计年鉴》等相关统计资料,采用最小人均耕地面积和耕地压力指数模型,基于粮食安全的视角,对1997~2007年酒泉市耕地面积、人口数量、粮食产量及粮食播种面积等影响干旱、半干旱地区耕地压力的因素以及最小人均耕地面积和耕地压力指数的时序变化进行定量分析和评价,计算得到酒泉市的耕地压力指数,进而分析面临的耕地压力态势。通过构建耕地需求函数,最终确定酒泉市2020年全面建设小康社会阶段为满足粮食安全目标的耕地需求量,即耕地和基本农田的保护面积,结果表明,干旱半干旱地区的耕地压力指数呈递增趋势。最后基于国家粮食安全需求的考虑,借助PSR模型,提出应该从加强政府的宏观调控职能、保护脆弱的生态环境和加强城市化进程中的土地集约节约利用等方面有针对性地减轻干旱半干旱地区的耕地压力,以期为干旱半干旱地区耕地保护决策的制定提供理论依据。
译  名：
Quantitative Analysis of Dynamic Change of Cultivated Land Pressure in Arid and Semi-arid Region Based on Food Security
作  者：
FU Shi-bo et al(School of Management,Lanzhou University,Lanzhou,Gansu 730000)
关键词：
Food security;Pressure of cultivated land;Arid and semi-arid region;China
摘  要：
Taking the Jiuquan City,Guansu Provice,China as an example,according to the 1997-2007 Gansu Statistical Yearbook,Jiuquan Statistical Yearbook,the Second National Land Investigation in Jiuquan City and other relevant statistical data,models of minimum cultivated area per capita and pressure index of cultivated land are used based on food security.Cultivated land area,population,grain output,sowing area and other factors in years 1997-2007,which affect the cultivated land pressure in arid and semi-arid region,are analyzed and estimated,as well as the temporal variations of minimum e cultivated area per capita and pressure index of cultivated land.Pressure index of cultivated land in Jiuquan City is calculated and the pressure situation of cultivated land at present is analyzed.Based on the construction of demand function of cultivated land,demand of cultivated land,that is,the protected area of basic farmland and cultivated land,is finally obtained to help to achieve the goal of food security in Jiuquan City at the stage of comprehensive construction of a well-off society in the year 2020.Considering the food security of China,we use PSR Model and find out that it is necessary to strengthen government's macro-control functions,to protect the fragile ecological environment,to improve the land intensive and economical use during the process of urbanization,and to reduce the pressure of cultivated land in arid and semi-arid region so as to provide theoretical basis for the policy making of cultivated land protection in this region.

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