Study on Carbon Storage and Spatial Pattern Based on InVEST Model in Xiaojiang River Basin of Yunnan Province
[Objective]To quantify carbon storage in regional ecosystem not only provide effective scientific basis for establishment and management of carbon pool, but also improve the function of carbon storage in the regional ecosystem.Besides, it can also coordinate the relationship between regional economic development and ecological environmental protection.[Method]Based on the DEM, land use data and soil data, we used the InVEST model to assess the carbon storage and its distributing pattern in regional ecosystem in Xiaojiang River Basin.[Result]The results showed that the total carbon storage of the watershed was 11.58 Mt, and the average carbon storage was 37.84 t/hm2.The level of soil carbon storage was relatively low, accounted for one third of the total carbon storage in Xiaojiang River Basin.The spatial distribution of carbon storage differed greatly.The value in the central region of the watershed was lower, where the Dongchuan district of Kunming City was located.The carbon storage in the Xundian Hui and Yi autonomous county in the southeast of the watershed was higher.From the vertical gradient, the carbon storage was concentrated in 1 800-2 900 m in elevation, and the lower value was in the valley and alpine meadow area.[Conclusion]The management measures should be adjusted to the different areas, which can control the carbon balance in the Xiaojiang River Basin effectively, and promote the regional carbon sequestration.
Xiaojiang River BasinCarbon storageInVEST modelSpatial disparity
国家科技期刊平台
NSTL
万方数据
维普
