Critical climate periods for grassland productivity on China's Loess Plateau

doi:10.1016/j.agrformet.2016.11.006

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Critical climate periods for grassland productivity on China's Loess Plateau
	Guo, Liang 1; Cheng, Jimin 1; Luedeling, Eike 2,3; Koerner, Sally E.4; He, Jin-Sheng 5; Xu, Jianchu 6,7; Gang, Chengcheng 1; Li, Wei 1; Luo, Ruimin 8; Peng, Changhui 1,9; Cheng, JM ; Peng, CH (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
文章类型	Article
	2017
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
通讯作者邮箱	gyzcjm@ms.iswc.ac.cn ; peng.changhui@uqam.ca
卷号	233 页码:101-109
摘要	Strong correlations between aboveground net primary productivity (ANPP) of grasslands and mean annual temperature or precipitation have been widely reported across regional or continental scales; however, inter-annual variation in these climate factors correlates poorly with site-specific ANPP. We hypothesize that the reason for these weak correlations is that the impacts of climatic variation on grassland productivity depend on the timing and intensity of variation in temperature and precipitation. In this study, long-term records of grassland productivity on the Loess Plateau in China were related with daily temperature and precipitation during 1992-2011 using Partial Least Squares (PLS) regression to test the above-mentioned hypothesis. Our results suggested that temperature increases during the early stage of the growing season (April-May) were positively correlated with ANPP. However, these effects were canceled out when this phase was followed by a hot and dry summer (June-July). Impacts of drought and heat in August on productivity were negligible. Increased temperature and precipitation during the senescence period (September-October) and a warmer dormancy phase (November-March) were negatively correlated with productivity in the following year, while precipitatibn during the dormancy period had no detectable effects. Climatic variability in summer has thus far been the dominant driver of temporal variation in grassland productivity. Warming during winter and spring currently play minor roles, but it seems likely that the importance of these secondary impacts may increase as warming trends continue. This evaluation of climate variability impacts on ecosystem function (e.g. grassland productivity) implies that not only the magnitude but also the timing of changes in temperature and precipitation determines how the impacts of climate changes on ecosystems will unfold. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Aboveground Net Primary Productivity (Anpp) Partial Least Squares Regression (Pls) Precipitation Temperate Grassland Temperature Timing Of Climate Variability
学科领域	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
DOI	10.1016/j.agrformet.2016.11.006
URL	查看原文
收录类别	SCI
出版地	AMSTERDAM
语种	英语
WOS记录号	WOS:000393259400009
出版者	ELSEVIER SCIENCE BV
项目资助者	China Postdoctoral Science Foundation [2016M590974]; West Light Foundation of the Chinese Academy of Sciences [K318021507]; National Key Research Program of China [2016YFC0500700]; Northwest AF University [Z109021502, Z109021609]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050202]; Modern Agro-industry Technology Research System [CARS-35-40]; Key Cultivation Project of Chinese Academy of Sciences; Consultative Group on International Agricultural Research (CGIAR) Program on "Water, Land and Ecosystems" (WLE) ; China Postdoctoral Science Foundation [2016M590974]; West Light Foundation of the Chinese Academy of Sciences [K318021507]; National Key Research Program of China [2016YFC0500700]; Northwest AF University [Z109021502, Z109021609]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050202]; Modern Agro-industry Technology Research System [CARS-35-40]; Key Cultivation Project of Chinese Academy of Sciences; Consultative Group on International Agricultural Research (CGIAR) Program on "Water, Land and Ecosystems" (WLE)
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8032
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Cheng, JM; Peng, CH (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
作者单位	1. Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 2.World Agroforestry Ctr, Nairobi 00100, Kenya 3.Univ Bonn, Ctr Dev Res ZEF, D-53113 Bonn, Germany 4.Univ S Florida, Dept Integrat Biol, Tampa, FL 33620 USA 5.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Ctr Mt Ecosyst Studies, Kunming Inst Bot, Kunming 650201, Peoples R China 7.World Agroforestry Ctr, East & Cent Asia, Kunming 650201, Peoples R China 8.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Peoples R China 9.Univ Quebec Montreal, Dept Biol Sci, Inst Environm Sci, Montreal, PQ H3C 3P8, Canada
推荐引用方式 GB/T 7714	Guo, Liang,Cheng, Jimin,Luedeling, Eike,et al. Critical climate periods for grassland productivity on China's Loess Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2017,233:101-109.
APA	Guo, Liang.,Cheng, Jimin.,Luedeling, Eike.,Koerner, Sally E..,He, Jin-Sheng.,...&Peng, CH .(2017).Critical climate periods for grassland productivity on China's Loess Plateau.AGRICULTURAL AND FOREST METEOROLOGY,233,101-109.
MLA	Guo, Liang,et al."Critical climate periods for grassland productivity on China's Loess Plateau".AGRICULTURAL AND FOREST METEOROLOGY 233(2017):101-109.