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黄土高原主要树种树干液流研究进展
Authors
刘潇潇
李国庆
杜盛
闫美杰
Publication date
1 January 2017
Publisher
Abstract
为了明晰黄土高原主要树种树干液流的动态特征,该文通过对已发表相关文献搜集与整理(19篇涉及11个 树种),采用meta分析手段归纳黄土高原主要树种树干液流动态、耗水规律及其影响因素。研究发现:(1)该区主要树 种树干液流存在明显的昼夜变化规律;(2)太阳辐射、水汽压亏缺、土壤含水率是影响树干液流的主要环境因素; (3)树干液流测量手段、树木生长阶段以及测量时的天气条件会给树木蒸腾耗水估算带来不确定性;(4)11个树种的 蒸腾耗水量大小的顺序为:针叶树种(侧柏、油松)<乡土阔叶树种(白榆、辽东栎、旱柳、柠条、河北杨、小叶杨、山杏)< 外来阔叶树种(刺槐、苹果)。本研究为黄土高原地区造林树种的合理选择及树种耗水评价提供参考。</p
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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 30/04/2019