湖北农业科学 ›› 2020, Vol. 59 ›› Issue (16): 54-60.doi: 10.14088/j.cnki.issn0439-8114.2020.16.011

• 资源·环境 • 上一篇    下一篇

基于GM(1,1)模型的长株潭地区土地覆被变化分析及趋势预测

郭荣中1, 申海建2, 杨敏华3   

  1. 1.长沙环境保护职业技术学院,长沙 410004;
    2.湖南省测绘科技研究所,长沙 410004;
    3.中南大学地球科学与信息物理学院,长沙 410083
  • 收稿日期:2020-01-21 出版日期:2020-08-25 发布日期:2020-10-09
  • 作者简介:郭荣中(1979-),女,湖南桂东人,教授,高级工程师,博士,主要从事土地信息与土地生态研究,(电话)13787027606(电子信箱)865495696@qq.com。
  • 基金资助:
    湖南省自然科学基金项目(2019JJ70013); 湖南省教育厅科研项目(18C1801); 湖南省生态环境厅环保科研项目; 湖南省社会科学成果评审委员会课题(XSP19YBC297); 湖南省自然资源调查与监测工程技术研究中心开放课题(2020-14)

Land cover change analysis and trend prediction by the GM(1,1) model in Changzhutan region

GUO Rong-zhong1, SHEN Hai-jian2, YANG Min-hua3   

  1. 1. Changsha Environmental Protection College, Changsha 410004,China;
    2. Institute of Hunan Surveying and Mapping Technology, Changsha 410004,China;
    3. School of Earth Science and Information Physics, Central South University, Changsha 410083,China
  • Received:2020-01-21 Online:2020-08-25 Published:2020-10-09

摘要: 对长株潭地区2002—2014年的土地覆被变化和土地利用强度进行了定量评价,并利用GM(1,1)模型对其发展趋势进行了预测分析。结果表明,2002—2014年长株潭地区各种土地利用类型均发生了较大的变化,城镇村及工矿用地、交通运输用地面积净增加,其他各类用地面积净减少。同期长株潭地区土地垦殖指数呈逐年下降趋势;土地开发强度指数、土地利用率指数、土地利用强度综合指数均呈逐年上升趋势。同时预测出研究区域2017—2026年各类土地利用数量情况,园地、草地、未利用土地、林地、耕地、水域面积出现不同程度减少,变化率分别达-19.15%、-12.31%、-7.10%、-3.12%、-2.80%、-1.18%;交通用地、居民点及工矿用地面积出现不同程度增加,变化率分别达35.57%、15.61%。

关键词: 土地利用类型, 土地利用强度, GM(1, 1)模型, 长株潭地区

Abstract: The land cover changes and the land use intensity in Changzhutan area from 2002 to 2014 were evaluated quantitatively, and its changed trends were predicted and analyzed by the GM(1,1) model. The results showed that great changes were observed in various types of land uses in the Changzhutan area from 2002 to 2014, including a net increase in the area of urban and rural land, industrial and mining land, and transportation land, and a net decrease in the area of other types of land. In the same period, the land reclamation index in Changzhutan area decreased year by year. The land development intensity index, land utilization rate index and land utilization intensity composite index all showed an increasing trend year by year. At the same time, various types of land use in the studied areas from 2017 to 2026 are predicted that unused land, gardens, grasslands, wetlands, arable land, woodlands and water areas would be to some extent reduced with the change rates about -19.15%, -12.31%, -7.10%, -3.12%, -2.80%, -1.18%, respectively. However, the areas of land for transportation, residential areas and industrial and mining land have been increased with the change rates of 35.57% and 15.61%, respectively.

Key words: type of land use, land use intensity, GM(1, 1)model, Changzhutan area

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