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[1]CHEN Ting-ting,HE Kang-ning.Canopy Extinction Characteristics of Elm in Different Density in Semi-arid Region on Loess Plateau[J].Research of Soil and Water Conservation,2008,15(01):209-211,215.

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Canopy Extinction Characteristics of Elm in Different Density in Semi-arid Region on Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 01 Page number: 209-211,215 Column: Public date: 2008-02-20

Title:: Canopy Extinction Characteristics of Elm in Different Density in Semi-arid Region on Loess Plateau

Author(s):: CHEN Ting-ting, HE Kang-ning; College of Water and Soil Conservation, Beijing Forestry University, Beijing 100083, China

Keywords:: net radiation; leaf areas index; extinction coefficient

CLC:: S718.3

DOI:: -

Abstract:: Based on the data of forest-elm in different density about the net radiation’s distribution and canopy structure measured in Fangshan, Shanxi Province, and accounting to Beer Lambert’ equation and considering the dynamic change of the leaf areas index (LAI), the paper selected the density in 1.5 m× 2 m and 1.5 m× 4 m forest-elm on study, researched the changing process of extinction coefficient in a day and in a growing season, at same time analyzed the factors affecting the extinction coefficient.The result showed that, the changing process of extinction coefficient in a day mainly affected by solar altitude; while the changing process of extinction coefficient in a growing season mainly affected by leaf areas index (LAI); and the effect of density to the changing process of extinction coefficient is carried out by modulating the structure of canopy.

References:: [1] 贺康宁, 张学培, 赵云杰, 等.晋西黄土残源沟壑区防护林热收支特性及蒸散研究[J].北京林业大学学报, 1998, 20(6):7-13.
[2] 王克勤, 陈奇伯.金沙江干热河谷人工生态林的林分环境分析[J].中国水土保持科学, 2003, 1(1):74-79.
[3] 康绍忠, 刘晓明, 熊运章.土壤-植物-大气连续体水分传输理论及其应用[M].北京:水利水电出版社, 1994.
[4] 高晓飞, 谢云, 王晓岚.冬小麦冠层消光系数日变化的实验研究[J].资源科学, 2004, 26(1):137-140.
[5] 刘志刚, 马钦彦, 潘向丽, 等.华北落叶松人工林放叶过程中的辐射特征[J].生态学报, 1997, 17(5):519-524.
[6] Vose J M, Wayne T S.Assessing seasonal leaf area dynamics and vertical leaf distribution in eastern white pine (Pinus strobes L.) with a portable light meter[J].Tree Physiology, 1990(7):125-134.
[7] 李德志, 藏润国.森林冠层结构与功能及其时空变化研究进展[J].世界林业研究, 2004, 17(3):12-16.
[8] 何艺玲, 傅懋毅.人工林林下植被的研究现状[J].林业科学研究, 2002, 15(6):727-733.
[9] 刘晨峰, 尹婧, 贺康宁.林下植被对半干旱区不同密度刺槐林地土壤水分环境的指示作用[J].中国水土保持科学, 2004, 2(2):62-67.
[10] 桑卫国, 郑豫, 张德全.暖温带落叶阔叶林林冠层表面辐射通量动态与特点[J].东北林业大学学报, 2001, 29(3):40-43.
[11] 贺康宁, 田阳, 张光灿.刺槐日蒸腾过程的Penman-Monteith方程模拟[J].生态学报, 2003, 23(2):251-258.

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