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Water absorption of common trees leaves in loess hilly and
Authors
张蕊
李晶晶
白岗栓
Publication date
1 January 2013
Publisher
Abstract
为了比较不同树种叶片的吸水性能,在陕北黄土丘陵沟壑区采用浸水法测定刺槐、臭椿、小叶杨、新疆杨、河北杨、84K杨(银白杨×腺毛杨)6种常见树种叶片的吸水能力。结果表明:1)不同树种叶片的吸水量均随浸水时间的增加而增加,与浸水时间呈对数关系;吸水速率均随浸水时间的增加而降低,与浸水时间呈幂函数关系;叶片浸水后0~60 min吸水速率较大,是叶片的主要吸水阶段。2)不同树种叶片吸水量、吸水速率表现为:新疆杨>刺槐>84K杨>臭椿>河北杨>小叶杨,其中新疆杨叶片的吸水量为0.415 g/g,小叶杨为0.179 g/g。3)不同树种中,新疆杨的吸水量、吸水速率最大,新疆杨在树冠截留方面应具有更重要的作用。 更多还原<br /
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018