[1]张宁,郭宾良,张国强,等.沿坝地区天然次生林对降雨再分配的影响[J].水土保持研究,2015,22(06):99-102,109.
　ZHANG Ning,GUO Binliang,ZHANG Guoqiang,et al.Study on Effect of Natural secondary forest on Rainfall Redistribution Processes Along the Dam Area[J].Research of Soil and Water Conservation,2015,22(06):99-102,109.
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沿坝地区天然次生林对降雨再分配的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年06期 页码: 99-102,109 栏目: 出版日期: 2015-12-28
Title:
Study on Effect of Natural secondary forest on Rainfall Redistribution Processes Along the Dam Area
作者:
张宁1, 郭宾良2, 张国强3, 张春茹3, 张楠3, 张建华3, 谷建才1
1. 河北农业大学, 河北 保定 071000;
2. 保定市林木种苗管理站, 河北 保定 071000;
3. 河北木兰围场国有林场管理局, 河北 围场 068450
Author(s):
ZHANG Ning1, GUO Binliang2, ZHANG Guoqiang3, ZHANG Chunru3, ZHANG Nan3, ZHANG Jianhua3, GU Jiancai1
1. Agricultural University of Hebei, Baoding, Hebei 071001, China;
2. Baoding forest seedling management station, Baoding, Hebei 071001, China;
3. Mulan-Weichang Forestry Administration of Hebei Province, WeiChang, Hebei 068450, China
关键词:
天然次生林; 降雨再分配; 林冠截留
Keywords:
natural secondary forest; rainfall redistribution; canopy interception
分类号:
S715
摘要:
为了探究天然次生林对降雨再分配的过程，通过对沿坝地区的北沟林场内天然次生林进行穿透降雨、冠层截留和树干径流3个方面进行监测，结果表明：（1）穿透雨量和林冠截留占林外降雨量的比例比较大，树干径流量的比例则非常小，分别为59.46%，37.33%，3.21%。（2）穿透雨量和林外降雨呈现线性关系（R2=0.980 4），林冠截留量与林外降雨量也具有明显的幂函数关系（R2=0.823 4），树干径流与林外降雨量具有明显的线性相关关系（R2=0.909 8），并且都达到了极显著水平（p < 0.01）。（3）根据穿透雨与林外降雨的方程y=0.8034x-1.7939，当林外降雨量高于2.23 mm时会产生穿透雨；依据林外降雨与树干径流的方程y=0.0552x-0.1981，当林外降雨高于3.58 mm时会产生树干径流；林冠在降雨再分配过程中起到了很重要的作用，形成了二次降雨。
Abstract:
In order to explore the impact of natural secondary forest on rainfall redistribution process, natural secondary forest floor, penetrating rain, canopy interception and stemflow were monitored through the north ditch along the dam area. The results show that: (1) through the rain and outside the forest canopy interception accounted for a relatively large proportion of rainfall, runoff proportion trunk is very small, 59.46%, 37.33%, 3.21%, respectively; (2) through the rain and the rain forest outside have the linear relationship (R2=0.980 4), and outside the forest canopy interception of rainfall also has significant power function relationship (R2=0.823 4), trunk runoff and rainfall outside the forest have obvious linear correlation (R2=0.909 8), and have reached a significant level (p<0.01); (3)="" according="" to="" the="" equation:="">y(outside the forest through the rain and rain)=0.8034x-1.7939, when the rainfall is higher than 2.23 mm outside the forest will produce rain penetration; according to the equation y outside the forest and tree trunks rainfall runoff=0.0552x-0.1981, when rainfall is higher than 3.58 mm outside the forest produces stem runoff; canopy plays a very important role in the redistribution of rainfall, the formation of a secondary rain.

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备注/Memo

收稿日期:2014-12-02;改回日期:2015-01-11。
基金项目:河北省科技厅“河北省滦河流域水源林经营关键技术研究与示范”（15227652D）；河北省科技厅“国有林场经营管理机制存在问题及改革模式研究”（13457525）
作者简介:张宁(1989-),女,河北衡水人,在读硕士研究生,研究方向:森林可持续经营。E-mail:934827579@qq.com
通讯作者:谷建才(1963-),男,河北藁城人,教授,研究方向:林业经营技术。E-mail:gujiancai@126.com

更新日期/Last Update: 1900-01-01