气候变化领域集成服务门户(CCPortal): Limitations of soil moisture and formation rate on vegetation growth in karst areas

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DOI	10.1016/j.scitotenv.2021.151209
	Limitations of soil moisture and formation rate on vegetation growth in karst areas
	Zhang, Sirui; Bai, Xiaoyong; Zhao, Cuiwei; Tan, Qiu; Luo, Guangjie; Cao, Yue; Deng, Yuanhong; Li, Qin; Li, Chaojun; Wu, Luhua; Wang, Jinfeng; Chen, Fei; Xi, Huipeng; Ran, Chen; Liu, Min
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	810
英文摘要	Vegetation changes in karst areas are controlled by the soil formation rate (SFR) and soil moisture (SM). However, little is known about their thresholds and global control patterns. To this end, based on high-precision climate and vegetation data for 2000-2014, using Pearson correlation analysis, the Hurst index, and change-point analysis, the thresholds of the SFR and SM in vegetation growth in karst areas were identified. Furthermore, a spatial map (0.125 degrees x 0.125 degrees) of the global karst ecosystem with a static/dynamic limitation zone was established. We found that the net primary productivity (NPP) in 70% of the global climate zones exhibited a dual restriction relationship with the SM and SIR. The limitations of the SIR and SM in vegetation growth were most obvious in subpolar and semi-arid climates. In addition, their ecological thresholds were 25.2 t km(-2) yr(-1) and 0.28 m(3) m(-3). respectively. The static limitation of the SIR on the NPP in karst areas accounted for 28.37%, and the influence of the SM enhanced this limit (21.79%). The limitation of the SFR on vegetation was mainly concentrated in Boreal forests (17%), and the limitation of the SM was mainly concentrated in tropical savannas (12%). The NPP and the Normalized Difference Vegetation Index (NDVI) were the most sensitive to changes in the SM and SFR. Moreover, the analysis based on 14 ecologically limitation karst areas further revealed that the reduction in these factors may cause the tropical rain forest to experience degradation. It can be seen that the SM enhanced the limiting effect of the SFR on vegetation in karst areas. In short, this interpretation of karst vegetation limitations provides a deeper understanding of and approach to ecosystem evolution and vegetation restoration in these regions. (C) 2021 Elsevier By. All rights reserved.
英文关键词	Karst; Ecological geology; Global change; Soil moisture; Soil formation rate
语种	英语
WOS研究方向	Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000767258100014
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280519
作者单位	Chinese Academy of Sciences; Guiyang Institute of Geochemistry, CAS; Guizhou Normal University; Chinese Academy of Sciences; Guizhou Education University; Guizhou University
推荐引用方式 GB/T 7714	Zhang, Sirui,Bai, Xiaoyong,Zhao, Cuiwei,et al. Limitations of soil moisture and formation rate on vegetation growth in karst areas[J],2022,810.
APA	Zhang, Sirui.,Bai, Xiaoyong.,Zhao, Cuiwei.,Tan, Qiu.,Luo, Guangjie.,...&Liu, Min.(2022).Limitations of soil moisture and formation rate on vegetation growth in karst areas.SCIENCE OF THE TOTAL ENVIRONMENT,810.
MLA	Zhang, Sirui,et al."Limitations of soil moisture and formation rate on vegetation growth in karst areas".SCIENCE OF THE TOTAL ENVIRONMENT 810(2022).