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干旱区地理 ›› 2023, Vol. 46 ›› Issue (6): 922-933.doi: 10.12118/j.issn.1000-6060.2022.442

• 生态与环境 • 上一篇    下一篇

近20 a内蒙古高原城乡开发建设对生态系统生产力的影响

萨日盖1,2(),包玉海1,2(),窦银银3,董禹麟3,潘涛3,4,匡文慧3   

  1. 1.内蒙古师范大学地理科学学院,内蒙古 呼和浩特 010022
    2.内蒙古师范大学内蒙古自治区遥感与地理信息系统重点实验室,内蒙古 呼和浩特 010022
    3.中国科学院地理科学与资源研究所陆地表层格局与模拟重点实验室,北京 100101
    4.曲阜师范大学,山东 日照 276826
  • 收稿日期:2022-09-06 修回日期:2022-10-31 出版日期:2023-06-25 发布日期:2023-07-24
  • 通讯作者: 包玉海(1965-),男,教授,主要从事土地利用/覆盖变化、自然灾害遥感监测与风险评估究. E-mail: baoyuhai@imnu.edu.cn
  • 作者简介:萨日盖(1994-),女,博士研究生,主要从事城市生态环境研究. E-mail: sargai0824@163.com
  • 基金资助:
    中国科学院战略性先导科技专项(XDA23100201)

Impacts of urban and rural construction on ecosystem productivity in Inner Mongolia Plateau from 2000 to 2020

SA Rigai1,2(),BAO Yuhai1,2(),DOU Yinyin3,DONG Yulin3,PAN Tao3,4,KUANG Wenhui3   

  1. 1. College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, Inner Mongolia, China
    2. Inner Mongolia Key Laboratory of Remote Sensing & Geography Information System, Inner Mongolia Normal University, Hohhot 010022, Inner Mongolia, China
    3. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, Beijing, China
    4. Qufu Normal University, Rizhao 276826, Shandong, China
  • Received:2022-09-06 Revised:2022-10-31 Online:2023-06-25 Published:2023-07-24

摘要:

内蒙古高原人类城乡开发建设活动监测及其对区域生态系统生产力影响的科学评估对于建设国家北方生态屏障具有重要的科学实践意义。基于遥感影像、土地利用数据、气象观测资料和其他辅助信息,综合应用动态度分析和邻域替代等方法,评估了2000—2020年内蒙古高原城乡开发建设的空间范围、扩张速度以及对生态系统生产力影响。结果表明:(1) 2020年内蒙古高原城乡开发建设用地面积为18206.49 km2,占土地总面积的1.46%。(2) 2000—2020年城乡建设扩张面积为7462.99 km2,59.76%源于工矿用地的扩张。城乡建设用地扩张主要占用自然和农田生态系统,其中城市用地和农村居民点以占用农田为主,工矿用地以占用草地和荒漠为主。(3) 2000—2020年内蒙古高原由于人类城乡开发建设活动导致的植被净初级生产力(Net primary productivity,NPP)损失达到143.51×104 tC,采矿开发导致的损失最多,占比由2000—2010年的60.72%增加到2010—2020年的73.91%。2010年以来,城乡开发建设占用农田导致的NPP损失有所缓解,然而草地NPP损失在加剧。(4) 毛乌素沙地、呼伦贝尔沙地、浑善达克沙地和科尔沁沙地的生态系统NPP损失主要由采矿开发导致。城镇人口、GDP增加以及相关政策引起城乡建设不断扩张,对生态系统NPP产生一定程度的影响。研究结果对内蒙古高原高质量城乡开发建设和生态文明建设具有重要参考价值。

关键词: 城乡开发建设, 生态系统, NPP损失, 内蒙古高原

Abstract:

The monitoring of human urban and rural construction activities in the Inner Mongolia Plateau, China and the scientific assessment of their impact on regional ecosystem productivity have important scientific and practical significance for the construction of the national northern ecological barrier. Based on satellite images, land use data, meteorological observation data, and auxiliary information, this study assessed the impacts of the expansion and speed of urban and rural construction on the ecosystem productivity in the Inner Mongolia Plateau from 2000 to 2020 using dynamic attitude analysis and neighborhood substitution methods. The results show that: (1) The area of urban and rural construction land (URCL) in 2020 was 18206.49 km2, accounting for 1.46% of the total area of the Inner Mongolia Plateau. (2) In the past 20 years, the area of URCL expansion was 7462.99 km2, of which 59.76% came from the expansion of industrial land. URCL mainly occupied natural and cultivated ecosystems, in which urban land and rural residential land mostly occupied cultivated ecosystems, while industrial land mainly occupied grassland and desert ecosystems. (3) From 2000 to 2020, the total loss of net primary productivity (NPP) caused by human urban and rural construction activities reached 143.51×104 tC in the Inner Mongolia Plateau. Industrial land activity is the main cause of NPP loss of natural ecosystems and increased from 60.72% in 2000—2010 to 73.91% in 2010—2020. Compared to 2000—2010, the NPP loss was alleviated in the cropland ecosystem but intensified in the grassland ecosystem in 2010—2020. (4) The NPP loss of Mu Us Sandy Land, Hulunbuir Sandy Land, Otindag Sandy Land, and Horqin Sandy Land were mainly caused by industrial land expansion. However, due to the impact of urban greening, the NPP of the ecosystem around the city increased slightly. The urban population, gross domestic product (GDP), and related policies led to the continuous expansion of URCL, which has a certain impact on ecosystem NPP. This study has an important reference value for urban and rural construction and ecological civilization construction, and ecological protection in the Inner Mongolia Plateau.

Key words: urban and rural construction, ecosystem, NPP loss, Inner Mongolia Plateau