CAJ | 학술논문

利用1997-2010年长株潭地区的土地利用现状数据和社会经济数据,运用耕地压力指数模型和主成分分析法分析了长株潭地区耕地压力的时空分布及驱动因素。结果表明：(1)长株潭地区耕地总量总体呈阶梯减少趋势；(2)整体看,长株潭地区耕地压力指数小于1,耕地压力不明显,但耕地压力指数呈上升-下降-上升走势,耕地压力呈上升势头。(3)具体看,长株潭地区耕地压力：长沙市>株洲市>湘潭市；并且县域空间差异明显,尤其是城区耕地压力指数远大于1,表明城区耕地压力非常大,其他县市压力相对较小。(4)人口快速增长、经济跨越式快速发展、农业机械化普及与农业投入的增加等4个方面是长株潭地区耕地压力变化的主要驱动因素。研究成果有利于提高人们对长株潭地区的耕地保护意识,为促进区域土地合理利用规划,实现两型发展提供科学依据。
이용1997-2010년장주담지구적토지이용현상수거화사회경제수거,운용경지압력지수모형화주성분분석법분석료장주담지구경지압력적시공분포급구동인소。결과표명：(1)장주담지구경지총량총체정계제감소추세；(2)정체간,장주담지구경지압력지수소우1,경지압력불명현,단경지압력지수정상승-하강-상승주세,경지압력정상승세두。(3)구체간,장주담지구경지압력：장사시>주주시>상담시；병차현역공간차이명현,우기시성구경지압력지수원대우1,표명성구경지압력비상대,기타현시압력상대교소。(4)인구쾌속증장、경제과월식쾌속발전、농업궤계화보급여농업투입적증가등4개방면시장주담지구경지압력변화적주요구동인소。연구성과유리우제고인문대장주담지구적경지보호의식,위촉진구역토지합리이용규화,실현량형발전제공과학의거。
Based on the survey data on land use and social-economic statistical data from 1 997 to 2010,this paper analyzes the spatial-temporal change and driving factors of cultivated land pressure in the Chang-Zhu-Tan area using the index model of cultivated land pressure and principal component analysis.The results show that the Chang-Zhu-Tan regional cultivated land tends to reduce overall in a step-like manner.As a whole,the cultivated land pressure index of the Chang-Zhu-Tan area is less than 1,implying the cultivated land pressure is not obvious.But the cultivated land pressure index exhibits an up-down-up process,with a rising tendency.Specifically,the cultivated land pressure of Changsha city is larger than Zhuzhou city,and that of Zhuzhou larger than Xiangtan city.And there are obvious differences among counties,especially in urban areas.The cultivated land pressure index of urban areas is much greater than 1,showing that the cul-tivated land pressure of urban areas is very big.Other counties have relatively smaller pressure.Rapid popu-lation growth,fast economic development,the popularization of agricultural mechanization and the increase of agricultural inputs are the main driving factors for the cultivated land pressure in the Chang-Zhu-Tan area. The study results will be helpful to raise awareness to protect the cultivated land,and provide a scientific ba-sis for promoting regional land reasonable use planning and realize two-type development in the Chang-Zhu-Tan area.