气候变化领域集成服务门户(CCPortal): Study on the water-carbon coupling coordination function on the eastern edge of the Qinghai-Tibet plateau

CCPortal

DOI	10.1016/j.ecolmodel.2023.110572
	Study on the water-carbon coupling coordination function on the eastern edge of the Qinghai-Tibet plateau
	Yuan, Xin; Jiao, Liang; Che, Xichen; Wu, Jingjing; Zhu, Xuli; Li, Qian
发表日期	2024
ISSN	0304-3800
EISSN	1872-7026
卷号	487
英文摘要	The Qilian Mountains on the eastern edge of the Tibetan Plateau are an important ecological security barrier in northwestern China and an extremely critical water-carbon conservation area. The water and carbon cycles are closely linked, and the water-carbon coupling process has become further complicated under global climate change and through the intensification of human activities. A better understanding of the impacts and potential mechanisms of water-carbon interactions is the key to improving the efficiency of water-carbon resource utilization. To rationalize the relationship between water and carbon, we used data from statistical almanacs, land use, DEM and various climatic elements to estimate the water-carbon nutrition in the Qilian Mountains from 2000 to 2020 based on the InVEST model and the Coupled Coordination Degree Model (CCDM) and to explore the coupling mechanism of water-carbon, spatial-temporal dynamics, and the influencing factors. The results showed that: 1). the average annual water and carbon storage in the Qilian Mountains are 63.21 x 108 m3 and 77.82 x 107 t, respectively, showing a spatial distribution pattern of high in the northeast and low in the southwest. The inter-annual changes in water (y=-0.451x+968.920) and carbon (y = 0.082x-87.808) showed different trends. 2). The annual average of the water-carbon coupling coordination degree of 0.280 in the Qilian Mountains was low in general, and the trends declined over time from 0.273 in 2000 to 0.264 in 2020. However, the spatial distribution was relatively clustered, and the spatial correlation improved from 0.69 in 2000 to 0.74 in 2020. 3). Precipitation, potential evapotranspiration and temperature were important elements driving watercarbon coupling. Among them, precipitation was significantly positively correlated with water-carbon coupling (r = 0.88), and potential evapotranspiration (r=-0.56) and temperature (r=-0.39) showed significant negative correlations with water-carbon coupling. This study can provide information for management and decision-making in carbon sequestration, water resource utilization, ecological protection and climate change, and promote the study of the spatial and temporal coupling functions of water and carbon with in the Qilian Mountains. Meanwhile, this study can provide a reference for the environmental management and protection of the Qilian Mountain ecosystem.
关键词	Qinghai-Tibet Plateau Mechanism Water conservation Carbon reserve InVEST model Water-carbon coupling
英文关键词	ECOSYSTEM SERVICES; CLIMATE-CHANGE; LAND-USE; PLANT CARBON; COVER; SOIL; RUNOFF; CHINA; RESPONSES; IMPACT
WOS研究方向	Ecology
WOS记录号	WOS:001125987700001
来源期刊	ECOLOGICAL MODELLING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283108
作者单位	Northwest Normal University - China
推荐引用方式 GB/T 7714	Yuan, Xin,Jiao, Liang,Che, Xichen,et al. Study on the water-carbon coupling coordination function on the eastern edge of the Qinghai-Tibet plateau[J],2024,487.
APA	Yuan, Xin,Jiao, Liang,Che, Xichen,Wu, Jingjing,Zhu, Xuli,&Li, Qian.(2024).Study on the water-carbon coupling coordination function on the eastern edge of the Qinghai-Tibet plateau.ECOLOGICAL MODELLING,487.
MLA	Yuan, Xin,et al."Study on the water-carbon coupling coordination function on the eastern edge of the Qinghai-Tibet plateau".ECOLOGICAL MODELLING 487(2024).