干旱区研究 ›› 2022, Vol. 39 ›› Issue (6): 1896-1906.doi: 10.13866/j.azr.2022.06.20

• 生态与环境 • 上一篇    下一篇

基于InVEST模型的新疆天山碳储量时空演变研究

卢雅焱1,2(),徐晓亮1,3(),李基才2,4,冯小华5,刘璐媛6   

  1. 1.中国科学院新疆生态与地理研究所,新疆 乌鲁木齐 830011
    2.中国科学院大学,北京 100049
    3.新疆财经大学 旅游学院,新疆 乌鲁木齐 830012
    4.新疆维吾尔自治区林业和草原局,新疆 乌鲁木齐830000
    5.国家林业和草原局西北调查规划院,陕西 西安 710048
    6.美国东北大学,美国 波士顿 02115
  • 收稿日期:2022-06-13 修回日期:2022-07-26 出版日期:2022-11-15 发布日期:2023-01-17
  • 通讯作者: 徐晓亮
  • 作者简介:卢雅焱(1993-),男,博士研究生,主要从事生态系统服务研究. E-mail: luyayan16@mails.ucas.ac.cn
  • 基金资助:
    中国科学院“西部青年学者”项目(2019-XBQNXZ-A-007)

Research on the spatio-temporal variation of carbon storage in the Xinjiang Tianshan Mountains based on the InVEST model

LU Yayan1,2(),XU Xiaoliang1,3(),LI Jicai2,4,FENG Xiaohua5,LIU Luyuan6   

  1. 1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. College of Tourism, Xinjiang University of Finance and Economics, Urumqi 830011, Xinjiang, China
    4. Forestry and Grassland Bureau of Xinjiang Uygur Autonomous Region, Urumqi 830000, Xinjiang, China
    5. Northwest Investigation and Planning Institute of National Forestry and Grassland Administration, Xi’an 710048, Shanxi, China
    6. Northeastern University, Boston 02115, USA
  • Received:2022-06-13 Revised:2022-07-26 Online:2022-11-15 Published:2023-01-17
  • Contact: Xiaoliang XU

摘要:

研究土地利用变化对天山碳储量时空变化的影响机制,对于干旱区山地生态系统保护及区域经济社会可持续发展具有重要意义。基于1990—2020年新疆天山土地利用数据,利用InVEST模型碳储量模块,估算了1990—2020年新疆天山碳储量及其空间分布格局,分析了土地利用变化对碳储量的影响。结果表明:(1) 新疆天山土地利用类型以草地和未利用地为主,其次为永久冰川和积雪以及林地,灌木、水域、建设用地和湿地的面积较少。(2) 1990—2020年新疆天山碳储量整体上呈现持续增加趋势,共增加了19.49 Tg,草地、未利用地、林地对总碳储量的贡献最大。(3) 近30 a碳储量空间分布格局相对稳定,近88%的区域没有发生明显变化,其空间分布格局与垂直自然带分布密切相关。(4) 草地、永久冰川和积雪、未利用地3种土地利用类型的转化是新疆天山碳储量时空演变的主要贡献者。该研究可为干旱区山地生态系统碳平衡管理和减排增汇政策制定提供科学支撑,对于建设绿色丝绸之路和构建中国-中亚命运共同体具有重要意义。

关键词: 碳储量, 生态系统服务, InVEST模型, 山地生态系统, 新疆天山

Abstract:

Understanding the impact of land use change on ecosystem carbon storage is important for protecting mountain ecosystems and regional economic and socially sustainable development in arid areas. Based on the land use data of the Xinjiang Tianshan Mountains from 1990 to 2020, the carbon storage and its spatial distribution pattern of the study area from 1990 to 2020 were estimated using the InVEST model carbon storage module, and the influence of land use change on carbon storage was analyzed. The results showed that: (1) The land use types of the study area were mainly grassland and unused land, followed by permanent glaciers and snow, and forest land, with very little area of shrubs, waters, construction land, and wetlands. (2) The carbon storage showed a continuous trend, with a total increase of 19.49 Tg. Grassland, unused land, and forest land contributed the most to the total carbon storage. (3) The spatial distribution pattern of carbon storage in the last 30 years was relatively stable, and nearly 88% of the regions are significantly unchanged. The spatial distribution pattern was closely related to the vertical natural zone distribution. (4) The transformation of three land use types: grassland, permanent glaciers and snow, and unused land, was the main contributor to the spatial and temporal evolution of carbon storage in the Tianshan Mountains. This study can provide scientific support for carbon balance management and policy formulation of emission reduction and sink enhancement in mountain ecosystems in arid regions. It is also important for building the Green Silk Road and the China-Central Asia community of destiny.

Key words: carbon storage, ecosystem service, InVEST model, mountain ecosystem, Xinjiang Tianshan Mountains