Vegetation Characteristics in the Marginal Areas of the Badain Jaran Desert

doi:10.7522/j.issn.1000-694X.2014.00189

JOURNAL OF DESERT RESEARCH ›› 2016, Vol. 36 ›› Issue (5): 1348-1356.DOI: 10.7522/j.issn.1000-694X.2014.00189

Vegetation Characteristics in the Marginal Areas of the Badain Jaran Desert

Liu Zhengyao¹, Dong Zhibao^1,2, Wang Jianbo¹, Cui Xujia¹, Zhang Yu¹, Jiao Yuanlei¹, Luo Wanyin², Lu Junfeng², Yang Linhai², Li Jiyan², Wang Meng²

1. College of Tourism & Environment Sciences, Shaanxi Normal University, Xi'an 710062, China;
2. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received:2014-09-28 Revised:2014-12-05 Online:2016-09-20 Published:2016-09-20

Abstract

Abstract: The article is based on the vegetation investigation in Badain Jaran Desert. It described various life forms of vegetation and the spatial distribution of community, then analyzed the index of vegetative diversity, dominance and evenness. We also discussed the impact of climate changes on vegetation distribution over the years. The results showed that:(1) The plant species in Badain Jaran Desert were lacking. It can be divided into 6 life forms:small trees, shrubs, small shrubs, subshrubs, perennial herbs and annual herbs. Among them, shrubs had the most abundant species, and small trees had the least. (2) Species richness and diversity in southeast area were higher than the northwest area of the Badain Jaran Desert. The distribution and diversity of vegetation communities in the southern margin were also higher than the northern margin. (3) In recent 53 years, the temperature of Badain Jaran Desert has changed dramatically, and the evaporation of water increased. Temperature increased and precipitation decreased in southern margin. The changes in desert where water is the dominant factor of the vegetation development is extremely disadvantageous. It's likely to intensify the threat of southern margin desertification.

Key words: vegetation, biological diversity, climatic change, Badain Jaran Desert

CLC Number:

Q948.15

Liu Zhengyao, Dong Zhibao, Wang Jianbo, Cui Xujia, Zhang Yu, Jiao Yuanlei, Luo Wanyin, Lu Junfeng, Yang Linhai, Li Jiyan, Wang Meng. Vegetation Characteristics in the Marginal Areas of the Badain Jaran Desert[J]. JOURNAL OF DESERT RESEARCH, 2016, 36(5): 1348-1356.

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Vegetation Characteristics in the Marginal Areas of the Badain Jaran Desert

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