1987–2010年中国新增建设用地占用耕地格局演变研究（英文）

编号 zgly0001645379

文献类型 期刊论文

文献题名 1987–2010年中国新增建设用地占用耕地格局演变研究（英文）

作者 鞠洪润  张增祥  赵晓丽  汪潇  吴文斌  易玲  温庆可  刘芳  徐进勇  胡顺光  左丽君 

作者单位 InstituteofRemoteSensingandDigitalEarth  CAS  SchoolofTourismandGeographyScience  QingdaoUniversity  DepartmentofGeography  UniversityofCaliforniaSantaBarbara  UniversityofChineseAcademyofSciences  KeyLaboratoryofAgri-informatics  Mi 

母体文献 Journal of Geographical Sciences 

年卷期 2018年11期

年份 2018 

分类号 F323.211 

关键词 croplandloss  urbangrowth  ruralsettlement  industrialland  transportationland  China 

文摘内容 Over the past few decades,built-up land in China has increasingly expanded with rapid urbanization,industrialization and rural settlements construction.The expansions encroached upon a large amount of cropland,placing great challenges on national food security.Although the impacts of urban expansion on cropland have been intensively illustrated,few attentions have been paid to differentiating the effects of growing urban areas,rural settlements,and industrial/transportation land.To fill this gap and offer comprehensive implications on framing policies for cropland protection,this study investigates and compares the spatio-temporal patterns of cropland conversion to urban areas,rural settlements,and industrial/transportation land from 1987 to 2010,based on land use maps interpreted from remote sensing imagery.Five indicators were developed to analyze the impacts of built-up land expansion on cropland in China.We find that 42,822 km2 of cropland were converted into built-up land in China,accounting for 43.8% of total cropland loss during 1987–2010.Urban growth showed a greater impact on cropland loss than the expansion of rural settlements and the expansion of industrial/transportation land after 2000.The contribution of rural settlement expansion decreased;however,rural settlement saw the highest percentage of traditional cropland loss which is generally in high quality.The contribution of industrial/transportation land expansion increased dramatically and was mainly distributed in major food production regions.These changes were closely related to the economic restructuring,urban-rural transformation and government policies in China.Future cropland conservation should focus on not only finding a reasonable urbanization mode,but also solving the hollowing village problem and balancing the industrial transformations.