| Biology and Soil |
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| Habitat Change and Natural Establishment of Plants in the Southern Part of Gurbantunggut Desert, China during 10 Years since Construction of Engineering Protective System |
| WANG Xue-qin1, JIANG Jin1, ZHANG Yuan-ming1, SONG Chun-wu1, YANG Fan1,2 |
1.Key Laboratory of Bioresource and Biogeography in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The great engineering construction in the hinterland of Gurbantunggut Desert always make strong disturbance to the ground surface. In order to protect ecosystem and control blown-sand disasters, the preventing system is set up following the destruction of ground surface. In this paper, based on field measurement of plant species and their abundance and analysis of physical and chemical characteristics of soil along the section across the protective system of the engineering, plants states on the natural dune surface were studied, and the habitat change and natural establishment of plants from 2000 to 2009 were discussed as well. The sand surface disturbed by great engineering can be stabilized by straw checker-board barrier and steady concave surface forms on the initial stages. Organic matter and fine sand began to accumulate on the surface with time. Soil water content was better than that on natural ground during the first two years. A total of 48 plant species were identified in the study area, including 1 dwarf tree, 4 shrubs, 13 perennial and annual herbages and 30 ephemeral plants. Herbages, especially ephemerals can entrance into the protective system naturally, their species and population increased with time. 8 species and 1.4 plants·m2 were measured in protective system in 2001, while they reached 33 species and 14 plants·m2 in 2009. Out of total number of all invasion plants, ephemeral plants accounted over 85% while the dwarf arbor and shrubs were scarcely observed along the study profile. The number of invasion plants on the north side of the engineering system was more than that on the south side, which may be affected by the wind regime. Plant abundance near the outside of protective system was more than that near the channel, which reflected the natural processes of plants entrance in this environment. With encroachment of herb plants and biological crusts and decline of soil water, the stabilization of simple man-made vegetation need further investigated in future.
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Received: 03 June 2011
Published: 20 March 2012
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Cite this article:
WANG Xue-qin, JIANG Jin, ZHANG Yuan-ming, SONG Chun-wu, YANG Fan. Habitat Change and Natural Establishment of Plants in the Southern Part of Gurbantunggut Desert, China during 10 Years since Construction of Engineering Protective System. JOURNAL OF DESERT RESEARCH, 2012, 32(2): 372-379.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2012/V32/I2/372
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2012, Vol. 32 
