Soil conservation capacity of alpine meadow ecosystem and its economic value in the northern Qinghai-Tibetan Plateau

YU Ge; LU Chun-xia; XIE Gao-di

Journal of Beijing Forestry University > 2006 > 28(4): 57-61.

YU Ge, LU Chun-xia, XIE Gao-di. Soil conservation capacity of alpine meadow ecosystem and its economic value in the northern Qinghai-Tibetan Plateau[J]. Journal of Beijing Forestry University, 2006, 28(4): 57-61.

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Soil conservation capacity of alpine meadow ecosystem and its economic value in the northern Qinghai-Tibetan Plateau

1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101 P. R. China;
2. Graduate University of Chinese Academy of Sciences, Beijing, 100039, P. R. China

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Received Date: July 07, 2005
Available Online: May 14, 2024

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Abstract

Alpine meadow is the largest grassland type in the Qinghai-Tibetan Plateau and its function of soil conservation is vital to protect the sensitive ecology and environment there. This paper designed different disturbance manners to discover the laws of soil erosion and their values by means of wind tunnel experiments at different speeds sampled in the northern Qinghai-Tibetan Plateau. From the results of wind tunnel experiment, it was found that both the different extent of destruction and varied wind speeds influence wind erosion. Their relations were non-linear. With the process of erosion, nutrients decreased to a certain degree. Finally, the direct value of the soil conservation capacity reached 1.5×10⁸-4.6×10⁸ per year by means of scenic analysis.
- alpine meadow,
- soil conservation capacity,
- value evaluation,
- Qinghai-Tibetan Plateau

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Soil conservation capacity of alpine meadow ecosystem and its economic value in the northern Qinghai-Tibetan Plateau

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