西藏色季拉山高山松林降雨再分配格局研究

林业资源管理 ›› 2013›› Issue (6): 133-136.

西藏色季拉山高山松林降雨再分配格局研究

五金旦增, 郑维列, 张昆林, 卢杰

西藏大学农牧学院,西藏林芝 860000

收稿日期:2013-06-13 修回日期:2013-09-24 出版日期:2013-12-28 发布日期:2020-11-23
通讯作者: 卢杰,男,四川安岳人,副教授,硕士,主要从事高山植物生态教学与研究工作。Email:tibetlj@163.com
作者简介:五金旦增(1987-),男(藏族),西藏山南人,在读硕士,主要从事植物生态学研究。Email:510806736@qq.com
基金资助:
西藏林芝森林生态系统定位研究(2012-LYPT-DW-016);西藏自治区科技厅重点项目(201110-2)

The Re-distribution Pattern of Pinusdensata Forest Precipitation in Tibet Sejila Mountains

Wujin Danzeng, ZHENG Weilie, ZHANG Kunlin, LU Jie

Agricultural and Animal Husbandry College,Tibet University,Linzhi 860000,China

Received:2013-06-13 Revised:2013-09-24 Online:2013-12-28 Published:2020-11-23

摘要/Abstract

摘要： 对西藏色季拉山高山松林冠截留、树干茎流与大气降雨量之间的关系进行了研究。结果表明:观测期间总降水量达337.90 mm,其中林冠截留量为82.17 mm、截留率为24.32%、变化幅度为13.19%～68.72%,穿透雨量为215.76 mm、穿透率63.85%、变化幅度为1.67%～13.57%,树干茎流量39.97 mm、茎流率11.83%、变化幅度为29.70%～73.26%。林冠截留量、穿透降雨量和树干茎流量与林外降雨量之间的关系分别为幂函数、直线性和二次函数关系。降雨的发生与林冠截留的产生是同步的,但是穿透产生和茎流产生与降雨发生并不同步。穿透雨和树干茎流是降雨量达到一定程度才开始出现的,而且刚开始很小,随后逐渐增大。

关键词: 高山松, 林冠截留, 树干茎流, 分配格局, 色季拉山

Abstract: The relationship between Pinusdensata interception loss,P.densata canopy interception,stem flow and atmospheric rainfall in Tibet Sejila Mountains were studied.The result shows that during the observation period,the total precipitation reached 337.90mm,among which,the canopy interception was 82.17mm with retention rate as 24.32% and amplitude of variation 13.19%～68.72%.Through fall precipitation was 215.76mm with penetration rate at 63.85% and change in the range of 1.67%～13.57% and stem flow was 39.97mm with stem flow rate at 11.83% and change range being 29.70%～73.26%.The fitted functions which represents the relationship between canopy interception,through fall,stem flow and rainfall were a power function,a linear function and second order function,respectively.The occurrence of canopy interception and precipitation was synchronous while that of penetration and stem flow not.The through fall and stem flow won’t appear until precipitation reaches certain level,starting with small amount and increasing gradually.

Key words: Pinusdensata, canopy interception, stem flow, distribution pattern, Sejila Mountains

中图分类号:

S715.2

五金旦增, 郑维列, 张昆林, 卢杰. 西藏色季拉山高山松林降雨再分配格局研究[J]. 林业资源管理, 2013,(6): 133-136.

Wujin Danzeng, ZHENG Weilie, ZHANG Kunlin, LU Jie. The Re-distribution Pattern of Pinusdensata Forest Precipitation in Tibet Sejila Mountains[J]. FOREST RESOURCES WANAGEMENT, 2013,(6): 133-136.

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