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| Response to Soil Water Environment of Vegetation in Lanzhou Suburb on Western Loess Plateau |
XIAO Hong-lang, DUAN Zheng-hu, SONG Yao-xuan, CHENG Guo-dong |
| Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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Abstract By investigating vegetation types and growth status, soil water and other factors of southern and northern mountains of Lanzhou and surrounding areas, we analyzed the relation between vegetation growth and climate environment, then deeply analyzed the afforestation adaptation, types and characters of vegetation distribution in Lanzhou. The results showed that annual rainfall was an important factor to determining vegetation growth status; the vegetation distribution status of eastern areas was better than that in southern areas, and that in southern areas was better than that in northern areas. Arbores were the predominant in eastern and southern areas, whereas drought-tolerant shrubs were the predominant in northern areas. Whether arbores or shrubs, the soil water content of 5% is the lowest threshold to keep the sustainable development of planted forest.
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Received: 06 December 2005
Published: 20 July 2006
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2006, Vol. 26 
