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毛鸿欣,贾科利,髙曦文,等. 1980—2018年银川平原土地利用变化时空格局分析[J]. 科学技术与工程, 2020, 20(20): 8008-8018.
MAO Hong-xin,Gao Xi-wen,et al.Analysis of Spatiotemporal Pattern of Land Use Change in Yinchuan Plain from 1980 to 2018[J].Science Technology and Engineering,2020,20(20):8008-8018.
1980—2018年银川平原土地利用变化时空格局分析
Analysis of Spatiotemporal Pattern of Land Use Change in Yinchuan Plain from 1980 to 2018
投稿时间:2020-01-09  修订日期:2020-03-26
DOI:
中文关键词:  土地利用变化  时空格局  信息图谱  银川平原
英文关键词:land use change  spatiotemporal pattern  geo-informatic spectrum  yinchuan plain
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
           
作者单位
毛鸿欣 宁夏大学资源环境学院
贾科利 宁夏大学资源环境学院
髙曦文 宁夏大学资源环境学院
张俊华 宁夏大学环境工程研究院
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中文摘要:
      为探究沿黄经济区工农业经济迅速发展所引起的土地利用变化特征,笔者基于GIS空间分析技术,通过转移矩阵,地学信息图谱、标准差椭圆、核密度和热点分析法,探究该区各地类数量结构演化和空间格局特征。结果表明:近38年,①建设用地和耕地大幅增长,其他地类均有减少,耕地流转为建设用地,主要来源为开垦草地和未利用地,水域林地略微减少,变化率低于1%;②空间分异上,图谱单元以水域向草地和耕地转化为主导,集中分布于平罗县、贺兰山脚和黄河以东,其次为耕地转为建设用地,主要发生在青铜峡市和利通区;③地类变化在空间上呈现东北-西南的集中分布趋势,覆盖范围逐渐趋于扩张;④沿黄城市群以耕地、居民点和建设用地为主,工农业快速发展加速了地类的转化,成为土地利用变化的热点和密集区。贺兰山自然保护区和白芨滩生态保护区,地类以林地和荒漠草原为主,是土地利用的冷点区。
英文摘要:
      In order to explore the frequent changes in land use caused by the rapid development of the industrial and agricultural economy along the Yellow Economic Zone. Based on GIS spatial analysis technology, take Yinchuan Plain as the investigated area, this paper used five periods of land use data from 1980, 1990, 2000, 2010, and 2018. Land use transfer matrix, land use geo-informatic spectrum, standard deviation ellipse, hotspot analysis and density analysis approaches were used to explore the evolution of land use quantity structure and characteristics of spatial pattern in this area from 1980 to 2018. The results showed that ①the dominant types of land use during the research period were cultivated land and unused land. The area of construction land and cultivated land increased significantly, and the grassland and unused land decreased dramatically, which were mainly reclaimed for cultivated land. The construction land was mainly transferred from cultivated land. Forest land and water body were less converted, but the area was reduced overall. ②In terms of spatial differentiation characteristics, the spectrum unit was dominated by the conversion of water body to grasslands and cultivated land, concentrated in Pingluo County, the foot of the Helan Mountains, and east of the Yellor River. Another great change of spectrum unit was the conversion of cultivated land to construction land, located mainly in Qingtongxia City and Litong District.③The change of land use types spatially demonstrated a centralized distribution trend from northeast to southwest, and the coverage gradually expands during the period.④Cities alone the Yellow River are dominated by cultivated land, residential areas, and construction land. The rapid development of industry and agriculture economy has accelerated the transformation of land types and made them a hot spot and dense area for land use change. Helan Mountain Nature Reserve and Baijitan Ecological Reserve, whose main land use types were woodland and desert grassland, are the main cold spots area of land use in the Yinchuan Plain.
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