干旱区生态环境知识资源中心(Arid): Relationships between Artemisia ordosica communities and environmental factors following sand-dune stabilization in the Mu Us desert, northwest China

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	Relationships between Artemisia ordosica communities and environmental factors following sand-dune stabilization in the Mu Us desert, northwest China
	Fan Dongqing; Zhang Yuqing; Qin Shugao; Wu Bin
来源期刊	Journal of Forestry Research
ISSN	1007-662X
出版年	2017
卷号	28 期号:1 页码:115-124
英文摘要	Artemisia ordosica is an excellent sand-fixing shrub for sand stabilization in northwestern China. Sand dune stabilization, a critically important process, leads changes in abiotic factors, such as soil structure and nutrient contents. However, the effects of factors on an A. ordosica community following sand stabilization remain unclear. In this study, we used canonical correspondence analysis (CCA) to examine the relationships between A. ordosica communities and environmental factors at three habitats: semi-fixed dune (SF),fixed dune with low-coverage biological soil crust (F), and fixed dune with high-coverage biological soil crust (FC) in Mu Us desert. The mean height and coverage of plants increased with sand stabilization, while species diversity and richness increased initially and then reduced significantly. Correlation analysis and CCA revealed that slope, soil organic carbon, and nutrient contents, proportion of fine soil particles, soil moisture, and thickness of biological soil crust were all highly correlated with vegetation characteristics. These environmental factors could explain 40.42 % of the vegetation-environment relationships at the three habitats. The distribution of plant species was positively related to soil moisture in the SF dune. Soil moisture, soil nutrient, and fine-particle contents mainly affected plants distribution in the F dune. In the FC dune, distribution of plant species was positively and negatively correlated with the thickness of biological soil crust and soil moisture at a depth 0-20 cm, respectively. The dominance value of typical steppe species increased significantly following sand-dune stabilization and relations between species and samples in CCA ordination bi-plots showed that perennial grasses could invade the A. ordosica community on FC, indicating A. ordosica communities had a tendency to change into typical steppe vegetation with the further fixation. We conclude that the significant differentiation not only occurred in community characteristics, but also in the relationships between vegetation and environmental factors among the three stages of dune fixation. So, restoration of degraded dune ecosystems should be based on habitat conditions and ecological needs.
英文关键词	Artemisia ordosica Canonical correspondence analysis Environmental factor Mu Us desert Sand dune stabilization
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5923879
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335763
作者单位	Fan Dongqing, Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing China.; Zhang Yuqing, Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing China.; Qin Shugao, Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing China.; Wu Bin, Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing China.
推荐引用方式 GB/T 7714	Fan Dongqing,Zhang Yuqing,Qin Shugao,et al. Relationships between Artemisia ordosica communities and environmental factors following sand-dune stabilization in the Mu Us desert, northwest China[J],2017,28(1):115-124.
APA	Fan Dongqing,Zhang Yuqing,Qin Shugao,&Wu Bin.(2017).Relationships between Artemisia ordosica communities and environmental factors following sand-dune stabilization in the Mu Us desert, northwest China.Journal of Forestry Research,28(1),115-124.
MLA	Fan Dongqing,et al."Relationships between Artemisia ordosica communities and environmental factors following sand-dune stabilization in the Mu Us desert, northwest China".Journal of Forestry Research 28.1(2017):115-124.