Canopy Interception Characteristics of Apple Trees in Gully Region of Loess Plateau

YANG Wen-qiang; WANG Yan-ping; ZHANG Qing-feng

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Canopy Interception Characteristics of Apple Trees in Gully Region of Loess Plateau

- Canopy Interception Characteristics of Apple Trees in Gully Region of Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 32, Issue 2, Pages: 93-96(2013)
- 作者机构：
  
  西北农林科技大学资源环境学院, 陕西杨凌,712100
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- Published：2013
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YANG Wen-qiang, WANG Yan-ping, ZHANG Qing-feng. Canopy Interception Characteristics of Apple Trees in Gully Region of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 93-96.
DOI：

YANG Wen-qiang, WANG Yan-ping, ZHANG Qing-feng. Canopy Interception Characteristics of Apple Trees in Gully Region of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 93-96. DOI：

摘要

以黄土高塬沟壑区的典型代表长武塬为研究区

基于对45场降雨的实测数据

分析了苹果林的林冠截留特征

量化了林冠对降雨的分配比例。结果表明

17年生苹果林穿透雨量、树干径流量、林冠截留量分别占大气降雨量的75%～97%

0.2%～1.6%

2%～25%。穿透雨量与降雨量呈凹形抛物线关系

树干径流量与降雨量的关系可近似用直线方程表达

由三次多项式表达的林冠截留量与降雨量关系与实测值的拟合程度最高。

Abstract

Changwuyuan as a representative landform in the gully region of Loess Plateau was selected as thestudy area of this study.We analyzed canopy interception characteristics of apple trees and quantified canopyallocation of rainfall based on field observations during 45rainfall events.The results showed that throughfall

stemflow and canopy interception accounted for 75%～97%

0.2%～1.6%

and 2%～25%of the totalrainfall

respectively.The relationship between throughfall and total rainfall could be described roughly by aparabolic curve with upward opening and that between stemflow and total rainfall by a linear equation.Therelationship between canopy interception and total rainfall was cubic polynomial

which had the highest fitting degree with the observed values.

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