Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern china
文献类型：期刊论文
| 作者 | Zhao, Peng1,2,3,4; Qu, Jianjun1,4; Xu, Xianying2,3; Yu, Qiushi2,3; Jiang, Shengxiu2,3; Zhao, Heran2,3 |
| 刊名 | Journal of arid land
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 11期号:3页码:461-476 |
| 关键词 | Twinspan classification Ordination Desert plant Groundwater Oasis-desert ecotone Species-environment relationship Minqin |
| ISSN号 | 1674-6767 |
| DOI | 10.1007/s40333-019-0055-0 |
| 通讯作者 | Qu, jianjun(qujianj@lzb.ac.cn) |
| 英文摘要 | Environmental heterogeneity significantly affects the structure of ecological communities. exploring vegetation distribution and its relationship with environmental factors is essential to understanding the abiotic mechanism(s) driving vegetation succession, especially in the ecologically fragile areas. in this study, based on the quantitative analysis of plant community and environmental factors in 68 plots at 10 different transects in the minqin oasis-desert ecotone (ode) of northwestern china, we investigated desert vegetation distribution and species-environment relationships using multivariate analysis. two-way indicator species analysis (twinspan), detrended correspondence analysis (dca), and canonical correspondence analysis (cca) methods were used. a total of 28 species, belonging to 27 genera in 8 families, were identified. chenopodiaceae, zygophyllaceae, gramineae, and leguminosae were the largest families. annual and perennial herbs accounted for 28.60% of the total number of plants, while shrubs (42.90%) were the most dominant. nitraria tangutorum was the constructive species of the desert plant community. we divided the 68 plots surveyed in this study into 7 community types, according to the results of twinspan. the distribution of these 7 communities in the dca ordination graph showed that species with a similar ecotype were clustered together. results of cca indicated that groundwater was the dominant factor influencing vegetation distribution, while distance between plot and oasis (dis) and soil electrical conductivity (ec) were the local second-order factors. our study suggests that optimizing the utilization of groundwater in oases is key to controlling the degradation of desert vegetation. the favorable topographic conditions of sand dunes should be fully utilized for vegetal dune stabilization, and the influence of soil salinity on the selection of afforestation tree species should be considered. |
| 收录类别 | SCI |
| WOS关键词 | GROUNDWATER DEPTH ; WATER-USE ; COMMUNITY STRUCTURE ; POPULUS-EUPHRATICA ; TRANSITIONAL ZONE ; PLANT-COMMUNITIES ; SPATIAL-PATTERN ; EDAPHIC FACTORS ; JARAN DESERT ; SANDY LAND |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000474563200011 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555395 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qu, Jianjun |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Desert & Desertificat, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China 2.Gansu Desert Control Res Inst, State Key Lab Breeding Base Desertificat & Aeolia, Lanzhou 730070, Gansu, Peoples R China 3.Gansu Minqin Natl Field Observat & Res Stn Ecosys, Minqin 733000, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Peng,Qu, Jianjun,Xu, Xianying,et al. Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern china[J]. Journal of arid land,2019,11(3):461-476. |
| APA | Zhao, Peng,Qu, Jianjun,Xu, Xianying,Yu, Qiushi,Jiang, Shengxiu,&Zhao, Heran.(2019).Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern china.Journal of arid land,11(3),461-476. |
| MLA | Zhao, Peng,et al."Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern china".Journal of arid land 11.3(2019):461-476. |
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来源：寒区旱区环境与工程研究所
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