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[1]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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Study on Effect of Natural secondary forest on Rainfall Redistribution Processes Along the Dam Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 06 Page number: 99-102,109 Column: Public date: 2015-12-28

Title:: Study on Effect of Natural secondary forest on Rainfall Redistribution Processes Along the Dam Area

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

Keywords:: natural secondary forest; rainfall redistribution; canopy interception

CLC:: S715

DOI:: -

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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