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	Wind tunnel simulation and evaluation of soil conservation function of alpine grassland in Qinghai-Tibet Plateau
	Xiao Y.
	2013
关键词	Soil conservation Ecosystem services evaluation Wind tunnel simulation Alpine grassland Qinghai-Tibet Plateau
英文摘要	Aiming at studying soil conservation function of alpine grassland in the Qinghai-Tibet Plateau, this paper simulated soil erosion changes under different degrees of human disturbance in a wind tunnel laboratory. Three types of grasslands were selected, which include alpine meadow (QH-1), alpine steppe meadow (QH-2) and alpine steppe (QH-3), and the soil erosion rate was taken as the index to measure soil conservation function. The experimental results show that the soil erosion rates of three grassland samples increase with wind velocity under different treatments but the increment of erosion rate varied greatly. Under original status, soil erosion rates are in turn QH-1QH-2>QH-3. When the aboveground vegetation was cut, the soil erosion rate change of QH-1 is the same as that of QH-3 and compared with the original status both of them changed a little. And when the root system was destroyed the erosion rates range in turn as QH-1QH-2>QH-3. The economic values of soil conservation were estimated, which include the values of organic carbon fixation, nutrient retention and reducing soil disuse. (C) 2012 Elsevier B.V. All rights reserved.
出处	Ecological Economics
卷	86
页	16-20
收录类别	SCI
语种	英语
ISSN号	0921-8009
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30361]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Xiao Y.. Wind tunnel simulation and evaluation of soil conservation function of alpine grassland in Qinghai-Tibet Plateau. 2013.

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