Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s40333-018-0069-z |
Stable isotope analysis of water sources for Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China | |
Zhang Jinhu1,2; Wang Nai’ang1; Niu Zhenmin1; Sun Jie1; Dong Chunyu3; Zhang LyuLyu1 | |
通讯作者 | Wang Nai’ang |
来源期刊 | JOURNAL OF ARID LAND |
ISSN | 1674-6767 |
EISSN | 2194-7783 |
出版年 | 2018 |
卷号 | 10期号:6页码:821-832 |
英文摘要 | The complex interactions in desert ecosystems between functional types and environmental conditions could be reflected by plant water use patterns. However, the mechanisms underlying the water use patterns as well as the water sources of Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China, remain unclear. This study investigated the water sources and water use patterns of T. laxa using the stable oxygen isotope method. The O-18 values of xylem water, soil water in different layers (0-200 cm), rainwater, snow water, lake water, atmospheric water vapor, condensate water, and groundwater were measured. The sources of water used by T. laxa were determined using the IsoSource model. The results indicate that T. laxa mainly relies on soil water. At the beginning of the growing season (in May), the species is primarily dependent on water from the middle soil layer (60-120 cm) and deep soil layer (120-200 cm). However, it mainly absorbs water from the shallow soil layer (0-60 cm) as the rainy season commences. In September, water use of T. laxa reverts to the deep soil layer (120-200 cm). The water use patterns of T. laxa are closely linked with heavy precipitation events and soil water content. These findings reveal the drought resistance mechanisms of T. laxa and are of significance for screening species for ecological restoration. |
英文关键词 | stable oxygen isotope water source water use pattern soil water stem water mega-dune Tamarix laxa |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000450507500001 |
WOS关键词 | SOIL-WATER ; RAMOSISSIMA ; PRECIPITATION ; GROWTH ; TREES |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 兰州大学 ; University of California, Los Angeles |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210641 |
作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China; 2.Gansu Desert Control Res Inst, State Key Lab Breeding Base Gansu Desertificat &, Lanzhou 730070, Gansu, Peoples R China; 3.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA |
推荐引用方式 GB/T 7714 | Zhang Jinhu,Wang Nai’ang,Niu Zhenmin,et al. Stable isotope analysis of water sources for Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China[J]. 兰州大学, University of California, Los Angeles,2018,10(6):821-832. |
APA | Zhang Jinhu,Wang Nai’ang,Niu Zhenmin,Sun Jie,Dong Chunyu,&Zhang LyuLyu.(2018).Stable isotope analysis of water sources for Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China.JOURNAL OF ARID LAND,10(6),821-832. |
MLA | Zhang Jinhu,et al."Stable isotope analysis of water sources for Tamarix laxa in the mega-dunes of the Badain Jaran Desert, China".JOURNAL OF ARID LAND 10.6(2018):821-832. |
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