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	Effect of manipulated precipitation during the growing season on soil respiration in the desert-grasslands in Inner Mongolia, China
	Zhang, Rui1,2,3; Zhao, Xueyong1,2; Zuo, Xiaoan1,2; Degen, A. Allan4; Shang, Zhanhuan5; Luo, Yongqing2; Zhang, Yonggang6; Chen, Juanli2,3
刊名	CATENA
	2019-05-01
卷号	176页码:73-80
关键词	Soil carbon flux Soil carbon Biomass Precipitation gradient Desert-grasslands
ISSN号	0341-8162
DOI	10.1016/j.catena.2019.01.010
通讯作者	Zhang, Rui(zhangr12@lzu.edu.cn) ; Zhao, Xueyong(zhaoxy@lzb.ac.cn)
英文摘要	The dynamics of soil respiration are crucial in understanding carbon cycling and its feedback to climate change. However, little information exists regarding the response of soil respiration to precipitation variation. To examine the response of soil respiration to precipitation variation through biogeochemical regulation, a manipulative field experiment was conducted along a precipitation gradient (-60%, -40%, -20%, CK = natural precipitation, + 20%, +40% and +60%) in a native desert grassland ecosystem in Inner Mongolia. Plant biomass, total soil carbon and soil respiration were determined across the precipitation treatments during the growing season (from late May to early October) in 2017. Above-ground biomass tended to increase but total soil carbon varied little with an increase in precipitation. Soil respiration exhibited a unimodal curve diurnally in all precipitation treatments, peaking between 09:00 and 13:00, but showed irregular patterns seasonally. Both the daily and seasonal average soil respirations increased with an increase in precipitation (diurnal Rs ranged from 0.37 mu mol m(-2)S(-1 )to 0.75 mu mol m(-2)S(-1); seasonal Rs ranged from 0.43 mu mol m(-2)S(-1) to 0.66 mu mol m(-2)S(-1)). Soil respiration was correlated positively with precipitation-induced change in above-ground plant biomass, but was correlated negatively with precipitation-induced change in total soil carbon. It was concluded that carbon released from the soil increases with an increase in precipitation.
收录类别	SCI
WOS关键词	LARGE ALTITUDINAL GRADIENT ; SEMIARID LOESS PLATEAU ; CARBON-DIOXIDE EFFLUX ; CO2 FLUX ; INTERANNUAL VARIATION ; NITROGEN ADDITION ; TEMPERATURE SENSITIVITY ; ECOSYSTEM RESPIRATION ; PERMAFROST REGION ; ALPINE MEADOW
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000462107000006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555529
专题	寒区旱区环境与工程研究所
通讯作者	Zhang, Rui; Zhao, Xueyong
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Gansu, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Gansu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Ben Gurion Univ Negev, Blaustein Inst Desert Res, Wyler Dept Dryland Agr, Desert Anim Adaptat & Husb, IL-8410500 Beer Sheva, Israel 5.Lanzhou Univ, State Key Lab Grassland Agroecosyst, Sch Life Sci, Lanzhou 730000, Gansu, Peoples R China 6.Minist Land & Resources, Chengdu Analyt & Testing Ctr Minerals & Rocks, Sichuan Bur Geol & Mineral Resources, Chengdu Supervis & Testing Ctr Mineral Resources, Chengdu 610081, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Rui,Zhao, Xueyong,Zuo, Xiaoan,et al. Effect of manipulated precipitation during the growing season on soil respiration in the desert-grasslands in Inner Mongolia, China[J]. CATENA,2019,176:73-80.
APA	Zhang, Rui.,Zhao, Xueyong.,Zuo, Xiaoan.,Degen, A. Allan.,Shang, Zhanhuan.,...&Chen, Juanli.(2019).Effect of manipulated precipitation during the growing season on soil respiration in the desert-grasslands in Inner Mongolia, China.CATENA,176,73-80.
MLA	Zhang, Rui,et al."Effect of manipulated precipitation during the growing season on soil respiration in the desert-grasslands in Inner Mongolia, China".CATENA 176(2019):73-80.

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