Forest soil acidification consistently reduces litter decomposition irrespective of nutrient availability and litter type

doi:10.1111/1365-2435.13925

	Forest soil acidification consistently reduces litter decomposition irrespective of nutrient availability and litter type
	Shen, Ying 2,3; Tian, Dashuan 2,4; Hou, Jihua 5; Wang, Jinsong 2; Zhang, Ruiyang 2; Li, Zhaolei 2; Chen, Xinli 1; Wei, Xuehong 6; Zhang, XinYu 2; He, Yicheng 2,5
刊名	FUNCTIONAL ECOLOGY
	2021-10-03
页码	10
关键词	enzyme activities litter decomposition nitrogen and phosphorus deposition soil acidification temperate forest
ISSN号	0269-8463
DOI	10.1111/1365-2435.13925
通讯作者	Tian, Dashuan(tiands@igsnrr.ac.cn) ; Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要	1. Nitrogen (N), phosphorus (P) and acid deposition are co-occurring in many ecosystems, likely with complex interactive effects on litter decomposition. 2. Few studies have been conducted to distinguish the interactive effects of these three factors on forest litter decomposition. Thus, we performed a 5-year litter decomposition experiment with N, P, acid addition in a temperate forest of Changbai Mountain in China, including four litter types from Pinus koraiensis, Quercus mongolica, Thin amurensis and their mixtures. 3. Our results showed that acid addition consistently reduced litter decomposition rate, irrespective of nutrient addition or litter types. In contrast, N and P addition had less impact on litter decomposition. Litter decomposition rate linearly reduced with decreasing soil pH, but positively increased with soil N availability. No relationship was found between soil P availability and litter decomposition. Soil enzyme activity played a key role in regulating litter decomposition response, such as acid phosphatase, xylosidase, N-cacetyl-b-D-glucosaminidase and alpha-1,4 glucosidase. Besides, low-quality litter (i.e. high C concentration, C:N and C:P ratio) amplified the negative effect of soil acidification on litter decomposition. 4. This study suggests that soil acidification consistently decelerates litter decomposition in temperate forests, which is independent of soil nutrient availability and litter types. The intensifying soil acidification with continuous N deposition in the future will greatly reduce litter nutrient return to soil, increasing the risk of multiple soil nutrient limitation.
资助项目	National Natural Science Foundation of China[31600356] ; National Natural Science Foundation of China[31770560] ; National Natural Science Foundation of China[41403073] ; National Key R&D Program of China[2017YFA0604802]
WOS关键词	NITROGEN ADDITIONS ; PHOSPHORUS ; DYNAMICS ; RELEASE ; DEPOSITION ; RESPONSES ; CLIMATE ; QUALITY ; CARBON ; ACID
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000702892900001
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165840]
专题	中国科学院地理科学与资源研究所
通讯作者	Tian, Dashuan; Niu, Shuli
作者单位	1.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Inst Zool, CAS Key Lab Anim Ecol & Conservat Biol, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 5.Beijing Forestry Univ, Key Lab Forest Resources & Ecosyst Proc Beijing, Beijing, Peoples R China 6.Tibet Agr & Anim Husb Univ, Resources & Environm Coll, Nyingchi Tibet, Peoples R China
推荐引用方式 GB/T 7714	Shen, Ying,Tian, Dashuan,Hou, Jihua,et al. Forest soil acidification consistently reduces litter decomposition irrespective of nutrient availability and litter type[J]. FUNCTIONAL ECOLOGY,2021:10.
APA	Shen, Ying.,Tian, Dashuan.,Hou, Jihua.,Wang, Jinsong.,Zhang, Ruiyang.,...&Niu, Shuli.(2021).Forest soil acidification consistently reduces litter decomposition irrespective of nutrient availability and litter type.FUNCTIONAL ECOLOGY,10.
MLA	Shen, Ying,et al."Forest soil acidification consistently reduces litter decomposition irrespective of nutrient availability and litter type".FUNCTIONAL ECOLOGY (2021):10.