Arid
DOI10.1016/j.scitotenv.2017.11.119
Effects of water and nitrogen addition on ecosystem respiration across three types of steppe: The role of plant and microbial biomass
Liu, Wei1,2; Lu, Xiaotao3; Xu, Wenfang4,5; Shi, Huiqiu2; Hou, Longyu2; Li, Linghao2; Yuan, Wenping1
通讯作者Li, Linghao ; Yuan, Wenping
来源期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
出版年2018
卷号619页码:103-111
英文摘要

Evaluating the regional variation of ecosystem respiration (R-eco) in its response to the changes of soil water and nitrogen (N) availability is crucial for fully understanding ecosystem carbon (C) exchange and its feedbacks to global changes. Here, we examined the responses of R-eco, plant community aboveground biomass (AB), microbial biomass carbon (MBC) and soil moisture (SM) to water and N addition, using intact soil monoliths from three different temperate steppes along a precipitation gradient, including meadow steppe, typical steppe, and desert steppe in northern China. We found that the meadow steppe held the highest value of R-eco. Water addition significantly enhanced R-eco while N addition had no effect on R-eco in all three ecosystems. The response of R-eco in the typical steppe was more sensitive than the other two ecosystems. The changes of plant community AB exhibited amuch stronger explanatory power than that of MBC for R-eco in the typical steppe. In contrast, MBC was the dominant factor explaining the variation of R-eco in the desert steppe and the meadow steppe. These findings contribute to our understanding of regional patterns of ecosystem C exchange under scenarios of global changes and highlight the importance of water availability in regulating ecosystem processes in temperate steppe grasslands. (c) 2017 Published by Elsevier B.V.


英文关键词Ecosystem respiration Nitrogen deposition Precipitation regime Regional variation Semi-arid grassland
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000424144200012
WOS关键词SOIL RESPIRATION ; USE EFFICIENCY ; PRECIPITATION GRADIENT ; CLIMATE-CHANGE ; CARBON FLUXES ; GREAT-PLAINS ; RESPONSES ; COMPONENTS ; PATTERNS ; MOISTURE
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构中国科学院植物研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212923
作者单位1.Sun Yat Sen Univ, Sch Atmospher Sci, Ctr Monsoon & Environm Res, Guangzhou 510275, Guangdong, Peoples R China;
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China;
3.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Liaoning, Peoples R China;
4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Liu, Wei,Lu, Xiaotao,Xu, Wenfang,et al. Effects of water and nitrogen addition on ecosystem respiration across three types of steppe: The role of plant and microbial biomass[J]. 中国科学院植物研究所,2018,619:103-111.
APA Liu, Wei.,Lu, Xiaotao.,Xu, Wenfang.,Shi, Huiqiu.,Hou, Longyu.,...&Yuan, Wenping.(2018).Effects of water and nitrogen addition on ecosystem respiration across three types of steppe: The role of plant and microbial biomass.SCIENCE OF THE TOTAL ENVIRONMENT,619,103-111.
MLA Liu, Wei,et al."Effects of water and nitrogen addition on ecosystem respiration across three types of steppe: The role of plant and microbial biomass".SCIENCE OF THE TOTAL ENVIRONMENT 619(2018):103-111.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu, Wei]的文章
[Lu, Xiaotao]的文章
[Xu, Wenfang]的文章
百度学术
百度学术中相似的文章
[Liu, Wei]的文章
[Lu, Xiaotao]的文章
[Xu, Wenfang]的文章
必应学术
必应学术中相似的文章
[Liu, Wei]的文章
[Lu, Xiaotao]的文章
[Xu, Wenfang]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。