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高黎贡山南段4种典型植被类型枯落物层持水性能研究

Study on Water Holding Capacity of Litter of Four Typical Vegetation Types in South Section of Gaoligongshan Mountain

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采用野外测定与室内实验分析相结合的方法,对高黎贡山南段4种典型植被类型枯落物层持水性能进行对比研究.研究结果表明,(1)枯落物总厚度为天然阔叶林＞旱冬瓜林＞杉木人工林＞次生阔叶林,其中未分解层枯落物厚度为旱冬瓜林＞天然阔叶林＞杉木人工林＞次生阔叶林,半分解层枯落物厚度为天然阔叶林＞杉木人工林＞旱冬瓜林＞次生阔叶林；枯落物总贮量为天然阔叶林＞次生阔叶林＞旱冬瓜林＞杉木人工林,其中未分解层枯落物贮量为次生阔叶林＞天然阔叶林＞杉木人工林＞旱冬瓜林,半分解层枯落物贮量为天然阔叶林＞旱冬瓜林＞次生阔叶林＞杉木人工林；(2)未分解层及半分解层最大持水量均为天然阔叶林＞杉木人工林＞旱冬瓜林＞次生阔叶林；(3)未分解层及半分解层持水速度均为天然阔叶林＞杉木人工林＞旱冬瓜林＞次生阔叶林.因此,4种植被类型枯落物层持水性能以天然阔叶林为最好.
The water holding capacities of litters of four typical vegelations in south section of Gaoligongshan mountain were studied through field delermination,indoor experiments and analysis.The study results were as follows; 1 ) The thickness of litter was in the order of natural broadleaved forest > Alnus nepalensis forest > Cunninghamia lanceolata plantation > secondary broadleaved forest; among which,the thickness of undecomposed litter was in the order of Alnus nepalensis forest > natural broadleaved forest > Cunninghamia lanceolata plantation > secondary broadleaved forest; the thickness of semi-decomposed litter was in the order of natural broadleaved forest > Cunninghamia lanceolata plantation > Alnus nepalensis forest > secondary broadleaved forest.The total storage of litter was in the order of natural broadleaved forest > secondary broadleaved forest > Alnus nepalensis forest > Cunninghamia lanceolata plantation,among which,the storage of undecomposed litter was in the order of secondary broadleaved forest > natural broadleaved forest > Cunninghamia lanceolata plantation > Alnus nepalensis forest,the storage of semi-decomposed litter was in the order of natural broadleaved forest > Alnus nepalensis forest > secondary broadleaved forest > Cunninghamia lanceolata plantation.2) The maximum water holding capacity of un-decomposed litter and semi-decomposed litter was in the order of natural broadleaved forest > Cunninghamia lanceolata plantation > Alnus nepalensis forest > secondary broadleaved forest.3) The speed of water holding of un-decomposed litter and semi - decomposed litter was in the order of natural broadleaved forest > Cunninghamia lanceolata plantation >Alnus nepalensis forest > secondary broadleaved forest.In conclusion,the water holding capacity of natural broadleaved forest was the best among these four vegetations.

Gaoligongshan Mountainvegetation typelitterwater holding capacity

孟广涛、文毅、柴勇、袁春明、艾怀森、蔺汝涛、李品荣、李贵祥

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北京师范大学,北京100875

云南省林业科学院,云南昆明650201

西南林业大学环境科学与工程学院,云南昆明650224

高黎贡山自然保护局,云南保山678000

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高黎贡山 植被类型 枯落物层 持水性能

国家林业局西南地区生物多样性保育重点实验室开放基金国家林业局“云南高黎贡山生态系统定位研究站”项目

BC2010F112011-LYPT-DW -0013

2012

西部林业科学
云南省林业科学院 云南省林学会

西部林业科学

CSTPCD北大核心
影响因子：0.807
ISSN：1672-8246
年,卷(期)：2012.41(3)
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