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A study on crown interception with four dominant tree species: a direct measurement

机译：四种优势树种对树冠的截留研究：直接测量

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摘要

An experiment was conducted to concentrate on the rainfall interception process of individual trees for four common species in Beijing, China, which included needle species (Platycladus orientalis and Pinus tabulaeformis) and broadleaf species (Quercus variabilis and Acer truncatum). Two types of interception storages, the maximum (C_(max)) and the minimum interception storage (C_(min)), were examined at four simulated rainfall intensities (from 11.7 to 78.5 mm h~(-1)). Results showed that an average of 91% of C_(max) for all the species was intercepted during the first 10 minutes of rainfall, while 45% of C_(max) drained off after rainfall cessation. Leaf area index (LAI) and leaf area (LA) were significantly correlated (p ＜ 0.05) with C_(max) and C_(min), while such significant correlations were not found between rainfall intensity and C_(max) and C_(min). Average C_(max) and C_(min) across all the species corresponded to 3 and 1% of gross rainfall. Mean C_(max) and C_(min) of the needle species were 3.0 and 1.8 times larger than that for the broadleaf ones. Results revealed that interception was a dynamic process which encompassed three phases. In addition, LAI and LA were valid predictors of interception in small trees, and deserve further test in forest stands.
机译：进行了一项实验，以集中研究中国北京四种常见树种的单株降雨截留过程，其中包括针叶树种（东方侧柏和油松）和阔叶树种（栎木和枫木）。在四种模拟降雨强度（从11.7到78.5 mm h〜（-1））下，检查了两种类型的拦截存储，最大（C_（max））和最小拦截存储（C_（min））。结果表明，在降雨的前10分钟内，所有物种的平均C_（max）均被拦截，而在停止降雨后，C_（max）的45％则被排出。叶面积指数（LAI）和叶面积（LA）与C_（max）和C_（min）显着相关（p ＜0.05），而降雨强度与C_（max）和C_（min）之间没有显着的相关性）。所有物种的平均C_（max）和C_（min）分别相当于总降雨量的3％和1％。针叶种类的平均C_（max）和C_（min）分别是阔叶类的3.0和1.8倍。结果表明，拦截是一个动态过程，包括三个阶段。此外，LAI和LA是小树木截留的有效预测因子，值得在林分中进一步测试。

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  • 来源
    《Nordic hydrology》 |2016年第4期|857-868|共12页
  • 作者

    Xiang Li; Jianzhi Niu; Linus Zhang; Qingfu Xiao; Gregory E. McPherson; Natalie van Doorn; Xinxiao Yu; Baoyuan Xie; Salli Dymond; Jiao Li; Chen Meng; Ziteng Luo;

  • 作者单位

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    Department of Water Resources Engineering, Lund University, Lund 221 00, Sweden;

    Department of Land, Air and Water Resources, University of California, Davis, CA 95618, USA;

    USDA Forest Service, Pacific Southwest Research Station, Davis, CA 95618, USA;

    USDA Forest Se rvice, Pacific Southwest Research Station, Albany, CA 94710, USA;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    USDA Forest Service, Pacific Southwest Research Station, Davis, CA 95618, USA;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

    Key Laboratory of Soil and Water Conservation and Desertification Combating of Education Ministry, Beijing Forestry University, Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    interception process; interception storage; leaf area; leaf area index; rainfall intensity; tree species;

    机译：拦截过程;拦截存储;叶面积;叶面积指数;降雨强度树种;

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