干旱区生态环境知识资源中心(Arid): Non-linear temperature sensitivity of litter component decomposition under warming gradient with precipitation addition on the Tibetan plateau

Arid

DOI	10.1007/s11104-020-04431-5
	Non-linear temperature sensitivity of litter component decomposition under warming gradient with precipitation addition on the Tibetan plateau
	Lv, Wangwang 1,2; Zhang, Lirong 1; Niu, Haishan 2; Li, Bowen 1,2; Wang, Qi 1,2; Zhou, Yang 1,2; Wang, Yanfen 2; Jiang, Lili 1; Liu, Peipei 1,2; Hong, Huan 1,2; Jia, Shugang 3,4; Luo, Caiyun 5; Tsechoe, Dorji 1; Zhou, Huakun 5; Wang, Shiping 1,3,4
通讯作者	Wang, Shiping
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	448 期号:1-2 页码:335-351
英文摘要	Background and aims Interactive effect of warming and precipitation addition on litter decomposition is still scarce. Moreover, nonlinear response of its temperature sensitivity to warming is not demonstrated due to lack of warming gradient experiment in situ. Methods we performed a warming gradient experiment (0, 0.25-0.5, 1, 2, and 4 degrees C, respectively) using infrared heaters and a precipitation addition treatment in a fully-factorial design for 2-years on the Tibetan Plateau. The responses of mass loss of litter components (i.e. organic matter (OM), soluble cell content (SCC), lignin, cellulose (Ce), hemi-cellulose (Hce), total organic carbon (OC)) and nutrients (total nitrogen (TN) and total phosphorus (TP)) to warming and precipitation addition were determined over 2-years. Results We found that warming significantly increased annual mass losses of all litter components in both treatment years. Precipitation addition significantly increased annual mass losses of OM, SCC, OC, TN and TP only in the first year due to drought. There were no interactive effects between warming and precipitation addition on litter component decomposition in the semi-arid alpine region. Temperature sensitivities were lowest when soil temperature increased by a mean of about 2.3 degrees C. There was an inverse relationship between the temperature sensitivity of organic matter decomposition and quality of litter carbon compounds. Conclusions Our results suggest that soil temperature effects may override soil moisture effects on litter decomposition in the alpine region, and the nonlinear temperature sensitivity of litter decomposition should be estimated using warming gradients. Lower quality of litter carbon compounds had higher temperature sensitivity of organic matter decomposition.
英文关键词	Warming gradient Precipitation addition Temperature sensitivity of litter decomposition Litter carbon compounds Non-linear Tibetan plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000515648800002
WOS关键词	ALPINE MEADOW ; LEAF-LITTER ; RECIPROCAL TRANSLOCATION ; CLIMATE-CHANGE ; CO2 PRODUCTION ; MASS-LOSS ; SOIL ; RESPONSES ; QUALITY ; CARBON
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315328
作者单位	1.Chinese Acad Sci, Key Lab Alpine Ecol Inst Tibetan Plateau Res, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; 3.Guangxi Normal Univ, Key Lab Environm Change & Resource Use Beibu Gulf, Nanning 530001, Peoples R China; 4.Minist Educ, Nanning 530001, Peoples R China; 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Restorat Ecol Cold Area, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Lv, Wangwang,Zhang, Lirong,Niu, Haishan,et al. Non-linear temperature sensitivity of litter component decomposition under warming gradient with precipitation addition on the Tibetan plateau[J],2020,448(1-2):335-351.
APA	Lv, Wangwang.,Zhang, Lirong.,Niu, Haishan.,Li, Bowen.,Wang, Qi.,...&Wang, Shiping.(2020).Non-linear temperature sensitivity of litter component decomposition under warming gradient with precipitation addition on the Tibetan plateau.PLANT AND SOIL,448(1-2),335-351.
MLA	Lv, Wangwang,et al."Non-linear temperature sensitivity of litter component decomposition under warming gradient with precipitation addition on the Tibetan plateau".PLANT AND SOIL 448.1-2(2020):335-351.