湖北农业科学 ›› 2022, Vol. 61 ›› Issue (16): 64-69.doi: 10.14088/j.cnki.issn0439-8114.2022.16.011

• 资源·环境 • 上一篇    下一篇

基于CA-Markov模型的黄土高原土地利用模拟预测

李凯, 张北赢   

  1. 江苏师范大学地理测绘与城乡规划学院,江苏 徐州 221116
  • 收稿日期:2021-09-08 出版日期:2022-08-25 发布日期:2022-09-14
  • 通讯作者: 张北赢(1981-),女,甘肃兰州人,副教授,博士,主要从事生态水文研究,(电话)15952183672(电子信箱)zhangbeiying@163.com。
  • 作者简介:李 凯(1997-),男,江苏徐州人,硕士,主要从事土地利用、景观生态研究,(电话)18244753774(电子信箱)likai9710@163.com。
  • 基金资助:
    国家自然科学基金项目(41701025); 江苏师范大学研究生科研与实践创新计划项目(2021XKT0057)

Land use simulation and prediction in Loess Plateau based on CA-Markov model

LI Kai, ZHANG Bei-ying   

  1. School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221116, Jiangsu,China
  • Received:2021-09-08 Online:2022-08-25 Published:2022-09-14

摘要: 基于黄土高原2005、2010、2015年三期土地利用数据,运用GIS和CA-Markov模型分析土地利用动态变化特征,同时基于CA-Markov模型对2025年土地利用格局进行模拟预测。结果表明,2005—2015年黄土高原地区耕地、草地和未利用地面积有所减少,林地、水域和建设用地面积有所增加;转出面积最多的为耕地,转入面积最多的为建设用地;CA-Markov模型预测结果显示黄土高原2015—2025年土地利用变化趋势与2005—2015年大致相同,建设用地和水域呈现扩张趋势,未利用地、耕地和草地呈减少趋势。黄土高原处于生态脆弱区,建设用地扩张以及不合理的土地开发利用会进一步降低黄土高原的生态环境质量,因此在未来土地开发利用中应设置建设用地开发边界,提高土地利用的合理性。

关键词: 土地利用, 黄土高原, CA-Markov模型

Abstract: Based on the land use data of the Loess Plateau in 2005, 2010 and 2015, this paper uses GIS and CA-Markov model to analyze the dynamic change characteristics of land use, and at the same time simulates and predicts the land use pattern in 2025 based on the CA-Markov model. The results show that from 2005 to 2015, cultivated land, grassland, and unused land in the Loess Plateau have decreased, and woodland, water area, and construction land have increased; the area of cultivated land transferred to other types of land is the largest, and the area of other types of land transferred to construction land is the largest. CA-Markov model prediction results show that the land-use change trend of the Loess Plateau from 2015 to 2025 is roughly the same as that of 2005 to 2015. The construction land and water area show an expansion trend, and the unused land, arable land, and grassland show a decreasing trend. The Loess Plateau is in an ecologically fragile area. Expansion of construction land and unreasonable land development and utilization will further reduce the quality of the ecological environment of the Loess Plateau. Therefore, construction land development boundaries should be set in future land development and utilization to improve the rationality of land use.

Key words: land use, Loess Plateau, CA-Markov model

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