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Effects of rainfall amount and frequency on vegetation growth in a Tibetan alpine meadow
Zhang, BC (Zhang, Baocheng)[ 1,2 ]; Cao, JJ (Cao, Junji)[ 1 ]; Bai, YF (Bai, Yanfen)[ 3 ]; Zhou, XH (Zhou, Xuhui)[ 2 ]; Ning, ZG (Ning, Zhigang)[ 4 ]; Yang, SJ (Yang, Songjie)[ 5 ]; Hu, L (Hu, Lin)[ 5 ]
2013-05-30
Source PublicationCLIMATIC CHANGE
Volume118Issue:2Pages:197-212
Subtype期刊论文
Abstract

Over the past decades, rainfall amount and frequency changed considerably on the Tibetan Plateau. However, how altered rainfall pattern affects vegetation growth and phenology in Tibetan alpine grasslands is poorly understood. In this study, we investigated the long-term effects of rainfall amount and frequency on production (i.e., aboveground biomass, AGB) and phenology of three perennial plants in a Tibetan alpine meadow from 1994 to 2005. Growth period (i.e., the dates from greening to senescence) was referred to plant phenology here. Our results showed that annual precipitation and total rainfall from large events (a parts per thousand yen 5 mm per day) were mainly distributed in the growing season, which increased significantly from 1994 to 2005 with more increment in May and July (p < 0.05). Total AGB and growth periods of three plants were linearly correlated with annual precipitation and total rainfall from large events, but have insignificant correlations with total rainfall from small events (< 5 mm per day) and rainfall frequency (including small, large, and all events). The results suggest that aboveground plant production and phenology are more sensitive to changes in large rainfall events (a parts per thousand yen 5 mm per day) than small events (< 5 mm per day) in the alpine meadow ecosystems.

DOI10.1007/s10584-012-0622-2
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10047
Collection粉尘与环境研究室
Corresponding AuthorZhang, BC (Zhang, Baocheng)[ 1,2 ]
Affiliation1.State Key Lab of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Xi’an 710075, China;
2.Coastal Ecosystems Research Station of the Yangtze River Estuary, Ministry of Education KeyLaboratory for Biodiversity Science and Ecological Engineering, The Institute of Biodiversity Science,Fudan University, Shanghai 200433, China;
3.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou 730000, China;
4.Shaanxi Changqing National Natural Reserve, Yang County, Shaanxi Province 723300, China;
5.College of Agriculture and life sciences, Ankang University, Ankang 725000, China
Recommended Citation
GB/T 7714
Zhang, BC ,Cao, JJ ,Bai, YF ,et al. Effects of rainfall amount and frequency on vegetation growth in a Tibetan alpine meadow[J]. CLIMATIC CHANGE,2013,118(2):197-212.
APA Zhang, BC .,Cao, JJ .,Bai, YF .,Zhou, XH .,Ning, ZG .,...&Hu, L .(2013).Effects of rainfall amount and frequency on vegetation growth in a Tibetan alpine meadow.CLIMATIC CHANGE,118(2),197-212.
MLA Zhang, BC ,et al."Effects of rainfall amount and frequency on vegetation growth in a Tibetan alpine meadow".CLIMATIC CHANGE 118.2(2013):197-212.
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