干旱区生态环境知识资源中心(Arid): Community carbon and water exchange responses to warming and precipitation enhancement in sandy grassland along a restoration gradient

Arid

DOI	10.1002/ece3.5490
	Community carbon and water exchange responses to warming and precipitation enhancement in sandy grassland along a restoration gradient
	Luo, Yayong 1,2; Zuo, Xiaoan 1,3; Li, Yulin 1; Zhang, Tonghui 1; Zhang, Rui 1; Chen, Juanli 1; Lv, Peng 1; Zhao, Xueyong1,3
通讯作者	Luo, Yayong ; Zhao, Xueyong
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:19 页码:10938-10949
英文摘要	Temperature increasing and precipitation alteration are predicted to occur in arid and semiarid lands; however, the response mechanism of carbon and water exchange at community level is still unclear in semiarid sandy land. We investigated the responses of carbon and water exchanges to warming and precipitation enhancement along a sand dune restoration gradient: mobile sand dunes (MD), semifixed sand dunes (SFD), and fixed sand dunes (FD). The average net ecosystem productivity (NEP) and evapotranspiration (ET) between May and August increased by 98% and 59%, respectively, from MD to SFD, while they had no significant differences between FD and the other two habitats. Warming inhibited ecosystem NEP, ET, and water use efficiency (WUE) by 69%, 49% (p < .001), and 80%, respectively, in SFD, while it nearly had no significant effects in MD and FD. However, precipitation addition by 30% nearly had no significant effects on community NEP, ET, and WUE, except for warming treatment in FD. In general, precipitation addition of 30% may still not be enough to prevent drought stress for growth of plants, due to with low water holding capacity and high evaporation rates in sandy land. Temperature increase magnified drought stress as it increased evapotranspiration rates especially in summer. In addition, community NEP, ET, and WUE were usually influenced by interactions between habitats and temperature, as well as the interactions among habitats, temperature, and precipitation. Species differences in each habitat along the restoration gradient may alter climate sensitivity of sandy land. These results will support in understanding and the prediction of the impacts of warming and precipitation change in semiarid sandy grassland.
英文关键词	net ecosystem productivity precipitation sandy grassland warming
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000486939000001
WOS关键词	INNER-MONGOLIA ; ELEVATED CO2 ; PRIMARY PRODUCTIVITY ; PLANT-RESPONSES ; ECOSYSTEM ; TEMPERATURE ; NITROGEN ; BIOMASS ; LAND ; DESERT
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215284
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lab Stress Ecophysiol & Biotechnol, Lanzhou, Gansu, Peoples R China; 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urad Desert Steppe Res Stn, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Luo, Yayong,Zuo, Xiaoan,Li, Yulin,et al. Community carbon and water exchange responses to warming and precipitation enhancement in sandy grassland along a restoration gradient[J],2019,9(19):10938-10949.
APA	Luo, Yayong.,Zuo, Xiaoan.,Li, Yulin.,Zhang, Tonghui.,Zhang, Rui.,...&Zhao, Xueyong.(2019).Community carbon and water exchange responses to warming and precipitation enhancement in sandy grassland along a restoration gradient.ECOLOGY AND EVOLUTION,9(19),10938-10949.
MLA	Luo, Yayong,et al."Community carbon and water exchange responses to warming and precipitation enhancement in sandy grassland along a restoration gradient".ECOLOGY AND EVOLUTION 9.19(2019):10938-10949.