Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model

Deng Zhe; Ding Wenguang; Pu Xiaoting; Lyu Yongjie; Wang Yali

doi:10.13961/j.cnki.stbctb.20220524.001

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Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model

- Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model
- Bulletin of Soiland Water Conservation Vol. 42, Issue 3, Pages: 324-334(2022)
- 作者机构：
  
  兰州大学资源环境学院, 甘肃省西部环境教育部重点实验室,甘肃,兰州,730000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20220524.001
  CLC： X36;X171.1
- Published：2022
- 稿件说明：
移动端阅览
Deng Zhe, Ding Wenguang, Pu Xiaoting, et al. Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 324-334.
DOI：

Deng Zhe, Ding Wenguang, Pu Xiaoting, et al. Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 324-334. DOI： 10.13961/j.cnki.stbctb.20220524.001.

摘要

[目的

]

研究祁连山国家公园碳储量及其时空分布，分析土地利用变化对陆地生态系统碳储量的影响，为提升国家公园生态价值、调整生态工程及土地管理政策提供科学依据。[方法

]

结合土地利用变化动态指数和土地转移矩阵分析国家公园生态破坏和生态恢复前后的土地利用变化，然后基于InVEST模型Carbon模块，以土地利用遥感影像和碳密度为模型运行数据，计算土地利用变化导致的碳储量变化。[结果

]

①祁连山国家公园1980，1990，2000，2010，2018年的碳储量分别为9.07×10

，9.07×10

，9.16×10

，9.17×10

t，呈现“先减后增”的趋势，累计增加9.86×10

t。②碳储量空间分布与土地利用类型有一定联系。碳储量较高的地区主要集中在公园东段和中段东侧，以林地为主；碳储量较低的地区主要集中公园西段和中段西侧，以未利用地为主。③1980—2018年生态正向演变下的土地利用变化（耕地、草地和未利用地转为林地，耕地和未利用地转为草地，未利用地转为水域）是国家公园碳储量增加的主要原因。[结论

]

巩固实施生态工程，着重保护草地资源、调整土地管理政策等方式能够有效促进生态系统正向演变，优化土地利用结构，有利于祁连山国家公园陆地生态碳储量的增加。

Abstract

[Objective] Carbon storage and its spatio-temporal distribution in the Qilian Mountain National Park

and the impact of land use change on terrestrial ecosystem carbon storage were analyzed in order to provide a scientific basis for improving the ecological value of national parks and adjusting ecological engineering and land management policies.[Methods] The land use dynamic index and land use conversion matrix were used to quantitatively analyze land use changes before and after ecological destruction and restoration in the national park. Then

remote sensing image data of land use and carbon density were used as operating data in the carbon module of the InVEST model to calculate the change in carbon storage induced by land use change.[Results] ① The carbon storage values for the Qilian Mountain National Park in 1980

1990

2000

2010

and 2018 were 9.07×108

9.07×108

9.16×108

9.17×108 t

showing a trend of "decrease first and then increase"

with a cumulative increase of 9.86×106 t; ② The spatial distribution of carbon storage was related to land use types. The areas with high carbon storage were mainly located in the east section and east of the middle section of the national park

and corresponded to forest. The areas with low carbon storage were mainly concentrated in the west section and west of the middle section

and corresponded to unused land. ③ Land use changes under the positive ecological evolution that occurred from 1980 to 2018 (i.e.

farmland

grassland

and unused land converted to forest; farmland and unused land converted to grassland; and unused land converted to water) were the main reasons for the increase in national park carbon storage.[Conclusion] The positive evolution of ecosystems should be promoted by consolidating ecological engineering

focusing on grassland resource protection

and adjusting land management policies in order to optimize land use structure and to increase terrestrial ecosystem carbon storage for the Qilian Mountain National Park.

关键词

Keywords

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