| 大庆市土地利用变化及驱动机制分析 |
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| 引用本文： | 张小虎,张合兵,雷国平.大庆市土地利用变化及驱动机制分析[J].干旱区资源与环境,2012(9):109-113. |
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| 作者姓名： | 张小虎 张合兵 雷国平 |
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| 作者单位： | 河南理工大学矿山空间信息技术国家测绘局重点实验室;东北农业大学资源与环境学院 |
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| 基金项目： | “十一五”国家科技支撑计划项目(2006BAJ05A14);黑龙江省寒地黑土利用与保护重点实验室项目;河南理工大学博士基金(B2010-87)资助 |
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| 摘 要： | 大庆是短时间内人地关系及土地利用发生剧烈变化的地区,其变化特征在全世界范围内已具有典型性和代表性。以大庆为研究区域,在GIS与RS技术支持下采用主成分分析法研究大庆市近20年土地利用变化特征及驱动机制。结果表明:1)1987-2005年大庆市未利用地、建设用地、耕地和林地呈增加态势,其他地类减少;2)土地利用向无序发展,土地利用多样性增加;土地利用程度下降,整体处于调整期;3)研究区土地利用变化的主要因素是社会经济驱动、粮食生产及气温因素;4)随经济社会和石油产业持续发展,社会经济因素中总人口、GDP、采油井等是主导;粮食生产因素主要包括与粮食生产密切的粮食产量、年均降水量及年蒸发量;同时研究区气温呈升高态势,导致气候趋于干旱,加之采油造成地下水位下降,从而加剧土地"三化"、湿地萎缩等。
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| 关 键 词： | 土地利用变化 驱动机制 主成分分析 大庆市 |
Land use change and driving mechanism in Daqing city |
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| ZHANG Xiaohu,ZHANG Hebing,LEI Guoping.Land use change and driving mechanism in Daqing city[J].Journal of Arid Land Resources and Environment,2012(9):109-113. |
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| Authors: | ZHANG Xiaohu ZHANG Hebing LEI Guoping |
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| Institution: | 1.Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping,Henan Polytechnic University,Jiaozuo 454000,P.R.China; 2.College of Resources and Environment,Northeast Agricultural University,Harbin 150030,P.R.China) |
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| Abstract: | Daqing is one of the typical areas where people-land relationship got to high strength in short time in world wide.In the paper we used principal component analysis supported by GIS and RS to research the driving mechanism of Daqing’s land use change in recent 20 years.The results demonstrated: 1) The unused land,construction land,cultivated land and forest land presented increase trend and other land decreased from 1987 to 2005;2) Land use developed to an disorder direction.Its diversity increased and land use types appeered uniform distribution.Land use level decreased and was in the adjustment phrase;3) The primary factors driving the land use change of research area were social economic factor,grain production and climate factors;4) As the continuous development of economic society and oil industry in research area,the total population,GDP,produces well,living space per capita were the dominant social economic driving factors.The grain production factors contained grain production,annual average rainfall and annual evaporation.The temperature increase in research area led to weather becoming dry.With the decline of groundwater caused by oil extraction,the land became worsen. |
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| Keywords: | land use change driving mechanism principal component analysis Daqing city |
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