气候变化领域集成服务门户(CCPortal): Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale

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DOI	10.1111/1365-2435.14558
	Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale
	Yuan, Ji; Wu, Fuzhong; Wu, Qiqian; Hedenec, Petr; Peng, Yan; Li, Zimin; Yuan, Chaoxiang; Zhao, Zemin; Jin, Xia; Tan, Siyi; Yang, Qiao; An, Nannan; Ni, Xiangyin; Yue, Kai
发表日期	2024
ISSN	0269-8463
EISSN	1365-2435
英文摘要	The initial concentration of litter nutrient not only affects the following decomposition process but also determines the quantities of nutrients returned to the soil. The aim of this study is to assess the global patterns and driving factors of three macronutrients, namely potassium (K), calcium (Ca) and magnesium (Mg), in freshly fallen litter. By synthesizing 5861 data points extracted from 584 publications, we quantitatively evaluated the concentrations of litter K, Ca and Mg in different litter types, life forms, taxonomic divisions and mycorrhizal associations. Also, using the machine learning method, we predicted their global patterns in forests, grasslands and shrublands. We found that (1) mean K, Ca and Mg concentrations ranged from 2.63 to 6.23, 1.05 to 11.50 and 0.20 to 2.74 g/kg, respectively, across different litter types; (2) the initial nutrients of the litter were significantly affected by plant functional types (e.g. life form, taxonomic division and mycorrhizal association), climate (e.g. isothermality, mean diurnal range, annual evapotranspiration and precipitation seasonality) and soil properties (e.g. pH, exchangeable Ca concentration and water content), with a higher litter K concentration of herbaceous plants, higher K, Ca and Mg concentrations from angiosperms and higher K and Mg concentrations from plants associated with arbuscular mycorrhiza (AM) fungi; and (3) the predicted leaf litter K, Ca and Mg concentrations were lower in high-latitude regions compared with those in low- and/or mid-latitude regions. Our study provides a globally comprehensive analysis on the patterns and driving factors of three important macronutrients in freshly fallen litter, contributing to a better understanding of their role in the decomposition process of litter, as well as the associated biogeochemical cycles under the future climate change scenario.Read the free Plain Language Summary for this article on the Journal blog. Read the free Plain Language Summary for this article on the Journal blog.image
英文关键词	climate; global pattern; litter decomposition; nutrient element; plant litter; soil property
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:001193987700001
来源期刊	FUNCTIONAL ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304521
作者单位	Fujian Normal University; Zhejiang A&F University; Universiti Malaysia Terengganu; Chinese Academy of Sciences; Institute of Earth Environment, CAS; Fujian Normal University
推荐引用方式 GB/T 7714	Yuan, Ji,Wu, Fuzhong,Wu, Qiqian,et al. Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale[J],2024.
APA	Yuan, Ji.,Wu, Fuzhong.,Wu, Qiqian.,Hedenec, Petr.,Peng, Yan.,...&Yue, Kai.(2024).Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale.FUNCTIONAL ECOLOGY.
MLA	Yuan, Ji,et al."Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale".FUNCTIONAL ECOLOGY (2024).