华南山地林分非空间和空间结构对降雨分配的量化影响

IF 1.2 4区农林科学 Q3 FORESTRY

Forestry Chronicle Pub Date : 2018-05-28 DOI:10.5558/TFC2018-025

LiuChunxia, WangYujie, Machao, WangYunqi, ZhangHuilan

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引用次数: 7

摘要

林分结构在降雨截流中起着重要作用，是森林水文研究的焦点。以往的研究主要关注林分非空间属性的影响，而空间特征的影响研究较少。本研究旨在利用林分直径、高度、叶面积指数(LAI)、邻域比较、混合指数和均匀角指数来量化林分结构对降雨分配的影响。结果表明:平均累积雨量、茎流和截流损失分别占总降水量的72.8% ~ 83.2%、0.5% ~ 11.3%和13.3% ~ 26.2%，降雨分配存在显著差异;累积截留损失与均匀角度指数(树木空间分布格局的衡量指标)呈负相关，因为林分结构属性在每个降雨事件中都不存在。不同林分结构对林分通流、茎流和截留损失的影响差异较大。

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Quantifying the effect of non-spatial and spatial forest stand structure on rainfall partitioning in mountain forests, Southern China

Forest stand structure plays an important role in rainfall interception and is a focal point in forest hydrology. Previous studies mainly looked at the effect of non-spatial attributes of stands while a few studies addressed the influence of spatial features. The aim of this study was to quantify the effect of stand structure on rainfall partitioning using diameter, height, leaf area index (LAI), neighbourhood comparison, mingling index and uniform angle index. The results revealed that the average accumulative throughfall, stemflow and interception loss accounted for 72.8%–83.2%, 0.5%–11.3% and 13.3%–26.2% of total precipitation, respectively, and significant differences existed in rainfall partitioning. The accumulative interception loss was negatively related to uniform angle index (a measure of tree spatial distribution patterns) as stand structure attribute was not available at each rainfall event. The effects of stand structure on throughfall, stemflow and interception loss varies considerably under...

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来源期刊

Forestry Chronicle 农林科学-林学

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The Canadian Institute of Forestry has published The Forestry Chronicle, a professional and scientific forestry journal, since 1925. The Forestry Chronicle is published to provide information to forest practitioners about professional and scientific management of forests and their resources. The Forestry Chronicle provides forest practitioners in Canada and around the world with a means to communicate with their peers in the professional community.