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连续降雨条件下黄土丘陵区两典型林分 降雨分配特征研究
张建国1,3; 闫美杰1,2; 杜盛1,2
2016
Source Publication水土保持研究
Volume23Issue:5Pages:158-168
Abstract

植被的降雨分配是重要的水文过程和生态功能。基于连续降雨条件下,采用雨量筒收集法,实地观测了黄土
丘陵区两典型森林群落———辽东栎次生林和刺槐人工林的树干流和穿透雨。结果表明:连续降雨条件下,两典型森
林群落穿透雨与降雨量之间存在极显著的相关关系,辽东栎林分穿透雨占降雨量的86%,刺槐林分穿透雨占降雨量
的89%;辽东栎单株树干流与胸径之间呈显著正相关线性关系;辽东栎林分树干流和刺槐林分树干流与降雨量之间
均存在极显著线性相关,两林分树干流分别占降雨量的14%和6%,辽东栎林树干流和穿透雨之和与降雨量相等,表
明该林分在连续降雨条件下,该林分树冠截流等于0;刺槐树干流和穿透雨之和与降雨量相比,相差5%,这可能与该
林分灌木层的二次分配有关。

Other Abstract

Rainfall partitioning by vegetation is important hydrological process and functions of ecosystems.
We investigated the stem flow and throughfall in two typical forests:a natural Quercus liaotungensis dominated
forest and a pure Robinia pseudoacacia plantation under continuous rainfall events by field observation using
the rainfall collector.The results showed that there was significant linear relation between throughfall and
gross precipitation in two typical forests for continuous rainfall events.Throughfall accounted for 86%and
89%of total rainfall in Quercus liaotungensis forest and in Robiniapseudoacaciaplantation,respectively.
Stem flow of individual trees of Quercusliaotungensiswas positively linearly correlated with DBH (Diameter
at breast height);stem flow of individuals of Robinia pseudoacacia was negatively linearly correlated with
DBH.The proportions of stand stem flows in gross rainfall of two typical forests were 14%and 6%,respectively.
The sum of stem flow and throughfall was equal to the gross rainfall in Quercus liaotungensis forest,indicating that
there was no canopy interception for continuous rainfall events in this forest.The difference between the sum
of stem flow and throughfall with the gross rainfall was 5%in Robinia pseudoacacia plantation,and maybe it
was related with the redistribution of throughfall in the shrub layer in this plantation.

Keyword连续降雨 树干流 穿透雨 冠层截留 辽东栎 刺槐
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8646
Collection水保所知识产出(1956---)
Affiliation1.中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室
2.西北农林科技大学水土保持研究所
3.中国科学院大学
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
张建国,闫美杰,杜盛. 连续降雨条件下黄土丘陵区两典型林分 降雨分配特征研究[J]. 水土保持研究,2016,23(5):158-168.
APA 张建国,闫美杰,&杜盛.(2016).连续降雨条件下黄土丘陵区两典型林分 降雨分配特征研究.水土保持研究,23(5),158-168.
MLA 张建国,et al."连续降雨条件下黄土丘陵区两典型林分 降雨分配特征研究".水土保持研究 23.5(2016):158-168.
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