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近50年湖南省耕地数量动态变化研究
引用本文:熊鹰,王克林,郭娴.近50年湖南省耕地数量动态变化研究[J].经济地理,2004,24(5):653-656.
作者姓名:熊鹰  王克林  郭娴
作者单位:1. 长沙理工大学,建筑系,中国湖南,长沙,410076;中国科学院,亚热带农业生态研究所,中国湖南,长沙,410125
2. 中国科学院,亚热带农业生态研究所,中国湖南,长沙,410125
3. 湖南省长沙市第十九中学,中国湖南,长沙,410012
基金项目:中国科学院知识创新工程重要方向项目 (kzcx2 -sw -41 5)资助
摘    要:湖南省是全国的农业大省之一,在全国农业发展格局中具有举足轻重的地位,其耕地数量的变化直接影响到全省乃至全国的粮食安全态势。文章利用1949-1999年的统计和普查数据,分析了湖南省近50年来耕地数量动态变化及地域差异,并进一步探讨了影响耕地动态变化的驱动因子。结果表明:50年来,湖南省耕地总体呈逐年下降态势,且区域变化差异明显;其中经济发展、社会系统和科技进步构成了耕地数量变化的主要驱动因子。

关 键 词:湖南  耕地数量  动态变化  驱动因子  地域差异  耕地保护  土地流转制度
文章编号:1000-8462(2004)05-0653-04

A STUDY ON TREND AND DRIVING FORCES OF CULTIVATED LAND USE CHANGE IN HUNAN PROVINCE DURING THE PAST 50 YEARS
XIONG Ying.A STUDY ON TREND AND DRIVING FORCES OF CULTIVATED LAND USE CHANGE IN HUNAN PROVINCE DURING THE PAST 50 YEARS[J].Economic Geography,2004,24(5):653-656.
Authors:XIONG Ying
Institution:XIONG Ying~
Abstract:According to statistical and survey data from 1949 to 1999 at provincial and county levels, trend of cultivated land change and its driving forces in Hunan Province during the last 50 years are discussed in this article. It was found that:since the 1950s, the total area of arable land and per capita availability are reducing;the decreasing regional differences of cultivated land in the past 50 years was very notable;as a result of the principal component analysis,the eight driving forces variables affecting arable land changes were analyzed which could be classified into three types,i.e,the dynamic development of economy,pressure of social system and progress of science and technology in agriculture.As to the specific factors, per capita net living space, population and yield of grain per ha are the main driving forces, which play an important role in the changing of cultivated land. The analytical results and conclusion of this paper will provide scientific basis for sustainable agricultural development in Hunan Province.
Keywords:Hunan province  cultivated land  dynamic change  driving forces
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