Effects of water conveyance embankments on riparian forest communities at the middle reaches of the Tarim River, Northwest China

Ecohydrology ◽  
2013 ◽  
Vol 6 (6) ◽  
pp. 937-948 ◽  
Author(s):  
Yongjin Chen ◽  
Weihong Li ◽  
Jiazhen Liu ◽  
Yuhai Yang
2020 ◽  
Author(s):  
Xiyi Wang ◽  
Tingting Ma ◽  
Hongbo Ling ◽  
Shuzhen Peng

Abstract Background: The lower reaches of the Tarim River is an arid region of inland China. In this area, vegetation is sparse and the environment is fragile. Therefore, it is of great significance to study the structure and stability of the plant community and ecosystem in the lower reaches of the Tarim River. It is valuable to increase the understanding of ecological protection and restoration in arid areas. Methods: In this study, four sections, Yingsu, Karday, Alakan, and Yiganbjm, were selected as research sites, and 96 arbor and shrub quadrats and 288 herb quadrats were delimited in these sites. The ecological characteristics of all species in the quadrats were investigated. We selected the surveyed data from 2000, 2004, 2008, 2012, 2016, and 2019. Based on the data, we analyzed the variations in species composition. We also determined Shannon-Wiener indexes, Alatalo indexes, and ecological dominance to discuss the species diversity and uniformity of plant community. Plant community stability were also evaluated. Results: There were 17 species in 2000 and 31 species in 2019. The proportion of arbor and shrub species decreased, while the understory herbaceous species gradually increased; all of the species become balanced. The stability of the plant community gradually increased; however, it remained unstable. Conclusions: In general, water conveyance in an ecosystem plays a positive role in promoting the restoration of vegetation and ecological stability. This study provides a new method for the evaluation of ecological protection and restoration benefits in arid areas. Our findings can be a good reference for similar studies.


2015 ◽  
Vol 380-381 ◽  
pp. 149-158 ◽  
Author(s):  
Huaijun Wang ◽  
Yaning Chen ◽  
Haijun Deng ◽  
Yingping Pan

2011 ◽  
Vol 65 (6) ◽  
pp. 1807-1820 ◽  
Author(s):  
Jianhua Xu ◽  
Yaning Chen ◽  
Weihong Li ◽  
Lijun Zhang ◽  
Yulian Hong ◽  
...  

2017 ◽  
Vol 29 (3) ◽  
pp. 749-760 ◽  
Author(s):  
Maierdang Keyimu ◽  
Ümüt Halik ◽  
Florian Betz ◽  
Choimaa Dulamsuren

2015 ◽  
Vol 7 (4) ◽  
pp. 544-554 ◽  
Author(s):  
Tayierjiang Aishan ◽  
Ümüt Halik ◽  
Florian Betz ◽  
Tashpolat Tiyip ◽  
Jianli Ding ◽  
...  

Ecologies ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 332-344
Author(s):  
Xinfeng Zhao ◽  
Tao Lin ◽  
Hailiang Xu ◽  
Ai Shajiang Aili ◽  
Wanyu Zhao ◽  
...  

To examine the variation in water and vegetation coverage areas, the groundwater level and plant diversity in the terminal lake of the Tarim River, northwest China, both the monitoring data of a field survey consisting of surface samples and remote sensing data for 20 years (2000–2019) were analyzed by using field survey and indoor remote sensing methods. The results showed that (1): from 2000 to 2019, water and vegetation areas increased significantly, especially the trend of vegetation areas becoming more significant, with an average annual increase of 13.9 km2/a; (2): the plant diversity increased first and then decreased; the species richness and Pielou index in the study area were 9.0 and 0.80 in 2005, but only 2.00 and 0.08 in 2000, respectively; species composition tends to be simplified; (3): with the increase in the lake area, the groundwater level showed an up-lifted trend; the correlation between the two was significant, but there was a lag in the response of the groundwater level.


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