Influences of Flooding on Degraded Riparian Vegetation along the Lower Tarim River

doi:10.7522/j.issn.1000-694X.2013.00286

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (1): 60-66 DOI: 10.7522/j.issn.1000-694X.2013.00286

Influences of Flooding on Degraded Riparian Vegetation along the Lower Tarim River

Fu Jinyi^1,2, Xu Hailiang¹, Zhao Xinfeng¹, Bai Yuan^1,2, Wang Xiyi^1,2

1. Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

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Abstract A study was carried out to investigate the effects of flooding on the riparian vegetation in moderately, severely and extremely degraded area along the Lower Tarim River, by analyzing the community structure and diversity of the riparian vegetation under different degradation degrees. The results showed that: (1) In the three degraded areas, the life forms in non-flooding sampling plots were trees and shrubs with the species percentages of 62.5%, 100% and 75%, respectively. The plant life forms in flooding sampling plots in moderately and severely degraded areas were perennial herbs with the species percentages of 37.5% and 42.86%, and the life form in extremely degraded area was still tree and shrub after flooding with the species percentage of 50%. (2) Impacted by flooding disturbance, the dominant species of the three degraded areas changed from trees and shrubs to perennial herbs and annual herbs. (3) Compared with the non-flooding sampling plots, the Simpson indices of the flooding ones in the three degraded areas increased by 40.55%, 66.24% and 171.39%, respectively. The Shannon-Wiener indices of the flooding ones in the three degraded areas increased by 42.75%, 72.68% and 197.6%, respectively. The Margalef indices of the flooding ones in three degraded areas increased by 105.98%, 88.54% and 120.88%, respectively. Therefore, the extremely degraded area had the most apparent increase of diversity indices impacted by flooding disturbance.

Key words: riparian vegetation degraded area flooding disturbance Tarim River

Received: 24 December 2012 Published: 20 January 2014

ZTFLH:

Q948.11

Corresponding Authors: 徐海量，xuhl@ms.xjb.ac.cn E-mail: xuhl@ms.xjb.ac.cn



	Articles by authors
	Fu Jinyi
	Xu Hailiang
	Zhao Xinfeng
	Bai Yuan
	Wang Xiyi

Cite this article:

Fu Jinyi, Xu Hailiang, Zhao Xinfeng, Bai Yuan, Wang Xiyi. Influences of Flooding on Degraded Riparian Vegetation along the Lower Tarim River. JOURNAL OF DESERT RESEARCH, 2014, 34(1): 60-66.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00286 OR http://www.desert.ac.cn/EN/Y2014/V34/I1/60

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