中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Response of alpine grassland to elevated nitrogen deposition and water supply in China

文献类型:期刊论文

作者li KaiHui1; Liu XueJun2; Song Ling3
刊名Oecologia
出版日期2015
卷号177期号:1页码:65-72
关键词Aboveground biomass Species richness Forbs Availability of nutrient and moisture Species productivity
ISSN号0029-8549
通讯作者Liu Xuejun
英文摘要

Species composition and productivity are influenced by water and N availability in semi-arid grasslands. To assess the effects of increased N deposition and water supply on plant species composition and productivity, two field experiments with four N addition treatments, and three N and water combination treatments were conducted in alpine grassland in the mid Tianshan mountains, northwest China. When considering N addition alone, aboveground biomass (AGB) of forbs (F-AGB) responded less to N addition than AGB of grasses (G(AGB)). G(AGB) increased as an effect of N combined with water addition but F-AGB did not show such an effect, reflecting a stronger response of grasses to the interaction of water availability and N than forbs. Under all treatments, N allocation to the aboveground tissue did not change for either forbs or grasses. N deposition and water addition did not alter species richness in the present study. These results suggest that N addition generally promoted AGB but had little effect on species richness in wet years. Snowfall in winter combined with rainfall in the early growing season likely plays a critical role in regulating plant growth of the subsequent year in the alpine grassland.

收录类别SCI
语种英语
WOS记录号WOS:000347406500007
源URL[http://ir.imde.ac.cn/handle/131551/17810]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences
2.College of Resources and Environmental Sciences, China Agricultural University
3.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences
推荐引用方式
GB/T 7714
li KaiHui,Liu XueJun,Song Ling. Response of alpine grassland to elevated nitrogen deposition and water supply in China[J]. Oecologia,2015,177(1):65-72.
APA li KaiHui,Liu XueJun,&Song Ling.(2015).Response of alpine grassland to elevated nitrogen deposition and water supply in China.Oecologia,177(1),65-72.
MLA li KaiHui,et al."Response of alpine grassland to elevated nitrogen deposition and water supply in China".Oecologia 177.1(2015):65-72.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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