Arid
DOI10.1186/s40064-015-1091-7
Effects of elevated root zone CO2 on xerophytic shrubs in re-vegetated sandy dunes at smaller spatial and temporal scales
Huang Lei; Zhang Zhishan
通讯作者Huang Lei
来源期刊SPRINGERPLUS
ISSN2193-1801
出版年2015
卷号4
英文摘要

The below-ground CO2 concentration in some crusted soils or flooded fields is usually ten or hundred times larger than the normal levels. Recently, a large number of studies have focused on elevated CO2 in the atmosphere; however, only few have examined the influence of elevated root zone CO2 on plant growth and vegetation succession. In the present study, a closed-air CO2 enrichment (CACE) system was designed to simulate elevated CO2 concentrations in the root zones. The physio-ecological characteristics of two typical xerophytic shrubs C. korshinskii and A. ordosica in re-vegetated desert areas were investigated at different soil CO2 concentrations from March 2011 to October 2013. Results showed that plant growth, phenophase, photosynthetic rate, stomatal conductance, transpiration rate, and water use efficiency for the two xerophytic shrubs were all increased at first and then decreased with increasing soil CO2 concentrations, and the optimal soil CO2 concentration thresholds for C. korshinskii and A. ordosica were 0.554 and 0.317%, respectively. And A. ordosica was more tolerate to root zone CO2 variation when compared with C. korshinskii, possible reasons and vegetation succession were also discussed.


英文关键词Elevated root zone CO2 Closed-air CO2 enrichment (CACE) system Xerophytic shrubs Re-vegetated sandy dunes
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000359262000003
WOS关键词TENGGER DESERT ; CARBON-DIOXIDE ; NITROGEN ; PHOTOSYNTHESIS ; PLANTS ; RESPONSES ; FORESTS ; GROWTH ; AIR
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构中国科学院西北生态环境资源研究院
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/190553
作者单位Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Huang Lei,Zhang Zhishan. Effects of elevated root zone CO2 on xerophytic shrubs in re-vegetated sandy dunes at smaller spatial and temporal scales[J]. 中国科学院西北生态环境资源研究院,2015,4.
APA Huang Lei,&Zhang Zhishan.(2015).Effects of elevated root zone CO2 on xerophytic shrubs in re-vegetated sandy dunes at smaller spatial and temporal scales.SPRINGERPLUS,4.
MLA Huang Lei,et al."Effects of elevated root zone CO2 on xerophytic shrubs in re-vegetated sandy dunes at smaller spatial and temporal scales".SPRINGERPLUS 4(2015).
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