[1]喻阳华,李光容,皮发剑,等. 赤水河上游主要树种冠层持水能力[J].西北林学院学报,2016,31(2):8-14.[doi:10.3969/j.issn.1001-7461.2016.02.02]
　YU Yang-hua,LI Guang-rong,PI Fa-jian,et al. Canopy Water Storage Capacity of Major Tree Species in the Upper Reaches of Chishui River[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(2):8-14.[doi:10.3969/j.issn.1001-7461.2016.02.02]
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 赤水河上游主要树种冠层持水能力()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第2期
页码:
8-14
栏目:
出版日期:
2016-03-31

文章信息/Info

Title:
 Canopy Water Storage Capacity of Major Tree Species in the Upper Reaches of Chishui River
文章编号:
1001-7461(2016)02-0008-07
作者:
 喻阳华1; 2; 李光容1; 皮发剑3; 严令斌1; 喻理飞3*
 (1.贵州大学 林学院，贵州 贵阳 550025；2.仁怀市环境保护局，贵州 仁怀 564500；3.贵州大学 生命科学学院，贵州 贵阳 550025)
Author(s):
 YU Yang-hua1; 2; LI Guang-rong1; PI Fa-jian3; YAN Ling-bin1; YU Li-fei3*
 (1.Forestry College,Guizhou University,Guiyang,Guizhou 550025,China;2.Renhuai Environmental Protection Agency,Renhuai,Guizhou 564500,China;3.Life Science College,Guizhou University,Guiyang,Guizhou 550025,China)
关键词:
 ; 树冠; 持水能力; 回归方程; 通径分析; 赤水河上游
Keywords:
 ; canopy;  water storage capacity;  regression equation;  path analysis;  upper reaches of Chishui River
分类号:
S715.2
DOI:
10.3969/j.issn.1001-7461.2016.02.02
文献标志码:
A
摘要:
 以赤水河上游32个水源涵养林树种为研究对象，采用标准枝浸水法测定树冠层的持水特征。结果表明：不同树种的冠层持水率存在差异，毛桐、南天竹、山胡椒等树种的冠层持水率较高，马尾松、楝树和香椿等树种的冠层持水率则较低；植株的胸径/地径、树高和冠长等生长性状与树冠层持水量总体呈现出显著的幂函数关系(p＜0.05)，这对估算和预测树冠层持水量提供了一种便捷的方法；通径分析表明生长性状对杨树、柏木树冠层持水量的直接影响均为胸径＞冠幅＞冠长＞树高，对马尾松树冠层持水量的直接影响为冠长＞树高＞胸径＞冠幅，对杉木和丝栗栲树冠层持水量的直接影响为胸径＞冠幅＞树高＞冠长，说明胸径和冠幅对植株冠层持水量的影响较大。上述研究结果可用于赤水河上游水源涵养林的结构配置和调整，对指导水源涵养林建设具有重要意义。
Abstract:
 In the paper,32 tree species growing in the upper reaches of Chishui River were served for the purpose of analyzing canopy water storage capacity by using soaking method of standard branch.The results showed that the canopy water storage capacities were different among different tree species.From the canopy layer,Mallotus barbatus,Nandina domestica and Lindera glauca had a higher water storage rate,and on the contrary,Pinus massoniana,Melia azedarach and Toona sinensis presented low water storage rate.The canopy water storage capacity was significantly correlated with DBH,height and crown length of 32 tree species with a power function (p＜0.05),and the relationship could be used for the estimation and prediction of canopy water storage capacity.The growth traits played different roles in canopy water storage capacity among different tree species.For Populus trinervis and Cupressus funebris,the direct influence on the capacity was diameter at breast height (DBH) > crown ratio > crown length > height,For P.massoniana,it was crown length > height > DBH > crown ratio,and for Cunninghamia lanceolata and Castanopsis fargesii,DBH > crown ratio > height > crown length,which could be concluded that DBH and crown breadth were accounted the main effect for above tree species.The results of the study can be used for configuration and adjustment of water conservation forest in the upper reaches of Chishui River,and it is of great significance to guide water conservation forest construction.

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备注/Memo

备注/Memo:
 收稿日期：2015-05-10修回日期：2015-06-27
基金项目：贵州省科技应用基础重大专项“喀斯特石漠化生态修复及生态经济系统优化调控研究”(黔科合JZ字[2014]2002)；贵州省环境保护项目“赤水河上游退化植被水源涵养功能评价及恢复对策”(2013-09)。
作者简介：喻阳华，男，博士研究生，研究方向：退化森林生态系统恢复。E-mail:yuyanghua2003@163.com
*通信作者：喻理飞，男，教授，博士生导师，研究方向：喀斯特退化生态系统恢复。E-mail:gdyulifei@163.com
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