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中国沙漠 ›› 2024, Vol. 44 ›› Issue (6): 100-109.DOI: 10.7522/j.issn.1000-694X.2024.00057

• • 上一篇    下一篇

内蒙古十大孔兑流域土地利用变化特征及驱动力

武娟娟1,2(), 杜军1(), 旭日干3, 王文1, 苗晨鑫1,2, 任侠3, 杨志如3, 曹方圆3, 毛明月3   

  1. 1.中国科学院西北生态环境资源研究院 临泽内陆河流域研究站,甘肃 兰州 730000
    2.中国科学院大学,北京 100049
    3.鄂尔多斯市水利事业发展中心,内蒙古 鄂尔多斯 017010
  • 收稿日期:2024-02-28 修回日期:2024-05-22 出版日期:2024-11-20 发布日期:2024-12-06
  • 通讯作者: 杜军
  • 作者简介:杜军(E-mail: dujun2012@lzb.ac.cn
    武娟娟(2001—),女,山西太原人,硕士研究生,主要从事植物生态学等方面的研究。E-mail: callmejjw@163.com
  • 基金资助:
    “科技兴蒙”行动重点专项项目(2022EEDSKJXM004-2)

Land use change characteristics and driving forces in the Ten Tributaries Basin, Inner Mongolia

Juanjuan Wu1,2(), Jun Du1(), Xurigan3, Wen Wang1, Chenxin Miao1,2, Xia Ren3, Zhiru Yang3, Fangyuan Cao3, Mingyue Mao3   

  1. 1.Research Station of Inland River Basin,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Water Conservancy Development Center of Ordos City,Ordos 017010,Inner Mongolia,China
  • Received:2024-02-28 Revised:2024-05-22 Online:2024-11-20 Published:2024-12-06
  • Contact: Jun Du

摘要:

基于1990—2020年4期Landsat卫星30 m分辨率遥感影像,解译并获取了土地利用/覆被信息,采用动态变化率和土地利用转移矩阵方法,系统分析了十大孔兑流域在过去30年的土地利用时空变化规律,同时借助随机森林模型,对土地利用结构转变的驱动力进行了探究。结果表明:(1)研究时段内,林地持续扩大,沙地面积逐渐缩小,建设用地增加最显著(47.5%),其次为林地(36.8%),其余各组分结构均未发生剧烈变动;(2)土地利用类型间发生着频繁的属性转化,以耕地与草地的互转、草地与沙地向林地和建设用地的转化为主要特征;(3)相对于气候变化,人类活动在驱动流域土地利用结构转变进程中发挥着主导作用,突出地体现在林地的转入、草地和建设用地的转出及沙地的转化动态等方面。

关键词: 土地利用, 时空特征, 变化规律, 驱动力, 十大孔兑流域

Abstract:

Based on Landsat satellite imagery with a resolution of 30 meters covering the period from 1990 to 2020, land use/land cover information was interpreted and extracted. The study used dynamic change rate and land use transfer matrix methods to systematically analyze the spatiotemporal patterns of land use changes in the Ten Tributaries Basin over the past three decades. Additionally, using the Random Forest models, the driving forces of the structural transformation of land use were explored. The results showed that: (1) During the study period, forest area continued to expand, while sandy areas gradually decreased. The most significant increase was observed in construction land (47.5%), followed by forest land (36.8%), with no drastic changes in the structure of other components. (2) Frequent attribute transformations occurred among land use types, with mutual transformation between farmland land and grassland, and conversions from grassland and sandy land to forest land and construction land being the main characteristics. (3) In comparison to climate change, human activities played a predominant role in driving the structural transformation of land use in the basin, which were particularly reflected in the input of forest land, the output of grassland and construction land, and the transformation dynamics of sandy land.

Key words: land use, spatiotemporal characteristics, change patterns, driving forces, Ten Tributaries Basin

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