| Analysis of spatial patterns and benefit/ cost of shelterbelts in arid areas |
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| DOI：10.7606/j.issn.1000-7601.2010.04.50 |
| Key Words: shelterbelt spatial pattem wind velocity profile benefit/ cost |
| Author Name | Affiliation | | FENC Zeshen | Key Laboratory of Soil and Water Conservation and Cambating Deserification, Beijing Forestry University, Beijing 100083，China | | CAO Jiarong | Key Laboratory of Soil and Water Conservation and Cambating Deserification, Beijing Forestry University, Beijing 100083，China | | ZHAO Zheguang | Key Laboratory of Soil and Water Conservation and Cambating Deserification, Beijing Forestry University, Beijing 100083，China | | HE Kangning | Key Laboratory of Soil and Water Conservation and Cambating Deserification, Beijing Forestry University, Beijing 100083，China | | LI Bai | Key Laboratory of Soil and Water Conservation and Cambating Deserification, Beijing Forestry University, Beijing 100083，China |
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| Abstract: |
| Wind velocity profile gradients of three spatial arrangement patterns of Salix psammophila were measured.
The results show that belt shrub community has the best windbreak effect, while the random has the poorest one. Near ground sand transporting rate and roughness of ground surface of shelterbelts were observed and benefit/ cost for windbreak with different rows of salix psammophila belts were calculated. It is found out that spatial patter of one-row belts, 1.5 m. in height, 7.5 m in belt distance and 0.5 m in depth have the highest defending benefits. When with the same rows, the higher the plants are, the better are their defending benefits. |
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