气候变化领域集成服务门户(CCPortal): Higher soil acidification risk in southeastern Tibetan Plateau

CCPortal

DOI	10.1016/j.scitotenv.2020.143372
	Higher soil acidification risk in southeastern Tibetan Plateau
	Zhang Q.; Wang Q.; Zhu J.; Xu L.; Li M.; Rengel Z.; Xiao J.; Hobbie E.A.; Piao S.; Luo W.; He N.
发表日期	2021
ISSN	489697
卷号	755
英文摘要	Stable soil pH is a key property in maintaining an ecosystem's structure, function, and sustainability. Increasing atmospheric deposition and grassland use on the Tibetan Plateau (TP) may increase the soil acidification risk, but we lack such information to date. Here, we evaluated the soil acidification risk in the TP, by comparing it with that in the Mongolia Plateau (MP) and applying the acid–base balance principles on atmospheric inputs, soils, and plants from 1980 to 2019. Cumulative acid input was lower in the TP than in the MP. Sulfur contributed more to acidity than nitrogen and atmospheric deposition contributed more to acidity than grassland use. Acid input was mainly influenced by local industry, animal husbandry and transportation in the MP, while in the TP it was also affected by the long-distance transportation of pollutants from South Asia and southern China. Overall, the TP was less acid-sensitive than the MP because of higher inorganic carbon content. However, soils in the southeastern TP, covering 21% of the total area, were acid-sensitive due to low levels of soil exchangeable base cation (EBCs) and lack of calcium carbonate. Coincidentally, the southeastern region has the highest concentration of acid input in the TP due to more rapid development and stronger influence of adjacent high acid deposition regions than others. Therefore, the acidification risk to the southeastern region is much higher than to other regions of the TP and the MP; in this region, the EBCs are likely to be depleted approximately 95 years earlier than in the MP. The findings of this study provide insights into the response of the TP to global change. For the ecosystem sustainability of southeastern TP, control of atmospheric acid deposition, especially sulfur deposition, in both local and adjacent regions and nations is required. © 2020 The Authors
英文关键词	Carbonate; Depletion; Deposition; Exchangeable base cation; Nitrogen; Uptake
语种	英语
scopus关键词	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/158285
作者单位	Key Laboratory of Ecosystem Network Observation and Modeling; Institute of Geographic Sciences and Natural Resources Research; Chinese Academy of Sciences; Beijing; 100101; China; College of Resources and Environment; University of Chinese Academy of Sciences; Beijing; 100049; China; Soil Science & Plant Nutrition; School of Agriculture and Environment; The University of Western Australia; Perth; WA 6009; Australia; Institute for Adriatic Crops and Karst Reclamation; Split; 21000; Croatia; Earth Systems Research Center; Institute for the Study of Earth; Oceans; and Space; University of New Hampshire; Durham; NH 03824; United States; Sino-French Institute for Earth System Science; College of Urban and Environmental Sciences; Peking University; Beijing; China; State Key Laboratory of Forest and Soil Ecology; Institute of Applied Ecology; Chinese Academy of Sciences; Shenyang; 110164; China; Institute of Grassland Science; Northeast Normal University and Key Laboratory of Vegetation Ecology; Ministry of Ed...
推荐引用方式 GB/T 7714	Zhang Q.,Wang Q.,Zhu J.,et al. Higher soil acidification risk in southeastern Tibetan Plateau[J],2021,755.
APA	Zhang Q..,Wang Q..,Zhu J..,Xu L..,Li M..,...&He N..(2021).Higher soil acidification risk in southeastern Tibetan Plateau.,755.
MLA	Zhang Q.,et al."Higher soil acidification risk in southeastern Tibetan Plateau".755(2021).