Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.envexpbot.2009.11.005 |
Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia | |
Zheng, Yuanrun1; Xie, Zhixiao2; Rimmington, Glyn M.3; Yu, Yuanjiang4; Gao, Yong4; Zhou, Guangsheng1; An, Ping5; Li, Xiangjun5; Tsuji, Wataru5; Shimizu, Hideyuki4 | |
通讯作者 | Zheng, Yuanrun |
来源期刊 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY |
ISSN | 0098-8472 |
出版年 | 2010 |
卷号 | 68期号:1页码:31-36 |
英文摘要 | It has been reported that elevated CO2 can enhance plant growth and water use, and that desert plants in particular will show the strongest response to rising atmospheric CO2, due to the strong water stress on these plants. In this study experiments were conducted to understand the responses of seedlings from four species, which are dominant in different successional stages in the semi-arid sandy grassland of central Inner Mongolia, to rising temperature and elevated CO2. Seedlings of the four species were grown for 8 weeks at two air temperatures and two CO2 concentration regimes in growth chambers. It was found that for the two Artemisia species and Hedysarum laeve elevated CO2 level resulted in increased relative growth rates (RGR) (6-12%), height increments (24-106%). net assimilation rates (20-45%) and water use efficiencies (WUE) (43-105%), and decreased transpiration (16-55%). For Caragana korshinskii, the elevated CO2 significantly increased the ratio of below ground to above ground biomass (16-23%). height increment (31-65%) and WUE (79-84%). At elevated CO2 level and the higher temperature, the two Artemisia species showed decreased RGR and height increments, while for, C. korshinskii and H. laeve increased RGR and height increments were observed. For A. sphaerocephala the higher temperature also resulted in increased WUE, but decreased WUE for the other three species. Obvious differences were observed between the two Artemisia species and C. korshinskii, with the Artemisia species characterized by higher RGR, lower ratio of below ground to above ground biomass and lower WUE. These findings should be applicable to similar shrub species located in other and and semi-arid environments. (C) 2009 Elsevier B.V. All rights reserved. |
英文关键词 | Elevated CO2 Artemisia ordosica Artemisia sphaerocephala Biomass Caragana korshinskii Growth Hedysarum laeve Semi-arid regions Temperature |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA ; Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000274603600004 |
WOS关键词 | CARBON-DIOXIDE CONCENTRATION ; WATER-USE EFFICIENCY ; ATMOSPHERIC CO2 ; GAS-EXCHANGE ; PHOTOSYNTHETIC RESPONSES ; GRASSLAND RESPONSES ; MOJAVE DESERT ; C-4 GRASSES ; TEMPERATURE ; PLANT |
WOS类目 | Plant Sciences ; Environmental Sciences |
WOS研究方向 | Plant Sciences ; 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/2XILL650/163989 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; 2.Florida Atlantic Univ, Dept Geosci, Boca Raton, FL 33431 USA; 3.Wichita State Univ, Off Global Learning, Wichita, KS 67260 USA; 4.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan; 5.Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan |
推荐引用方式 GB/T 7714 | Zheng, Yuanrun,Xie, Zhixiao,Rimmington, Glyn M.,et al. Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia[J]. 中国科学院植物研究所,2010,68(1):31-36. |
APA | Zheng, Yuanrun.,Xie, Zhixiao.,Rimmington, Glyn M..,Yu, Yuanjiang.,Gao, Yong.,...&Shimizu, Hideyuki.(2010).Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,68(1),31-36. |
MLA | Zheng, Yuanrun,et al."Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 68.1(2010):31-36. |
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