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《Bulletin of Soil and Water Conservation》 2008-01
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Effects of Farmland Shelterbelt by Willows and Their Shading Performances

YANG Bin1, SHI Pei-xian2, LIU Shu-ming3(1. Forestry Scientific Technology Extension Station of Gansu, Lanzhou, Gansu 730046, China;2. Forestry Research Institute of Linxia, Linxia, Gansu 731800, China;3.College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China)  
Effects of afforestation of farmland shelterbelt with clones or cultivars of Salix jiangsuensis and S. viminalis and their shading performances were investigated. Results showed that both survival and preservation rates of the S. jiangsuensis 194 were 96.6 and 93.2%, respectively. There were no differences of survival and preservation rates among different cultivars or clones and different planting spaces. Tree height increment of S. jiangsuensis was higher than that of S. viminalis, indicating that S. jiangsuensis is a suitable species for farmland shelterbelt. Shading index and shading degree of the 6-year-old S. jiangsuensis 172 (spacing 3 m×6 m) were 56.62% and 13.31%, respectively, exceeding the upper limit of farmland shelterbelt. Therefore, the S. jiangsuensis 172 should be shinned properly in the fifth year of planting to meet the related standards.
【Fund】: 国家林业局项目“J172等柳树新品种丰产栽培技术推广”(2006-62)
【CateGory Index】: S792.12
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