大容山自然保护区6种林分土壤的水源涵养功能研究

为评价广西大容山自然保护区森林的水源涵养能力,对6种主要林分的土壤物理性质、土壤渗透性和林地蓄水性能进行研究。结果表明：6种林分的土壤容重在0.99～1.34 g/cm3之间,随深度的增加而增大;土壤总孔隙度在48.32%～62.54%之间,非毛管孔隙度变化在5.40%～26.35%之间,阔叶林地大于针叶林地。土壤的初渗速率在8.36～33.43 mm/min之间,稳渗速率在5.32～23.14 mm/min之间,阔叶林的渗透性能优于针叶林。6种林分土壤0～60 cm层次的有效蓄水量大小依次为：尾叶桉林（1 414 t/hm2）〉红椎林（1 170 t/hm2）〉杉木林（1 083 t/hm2...

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Bibliographic Details
Published in广东农业科学 Vol. 39; no. 6; pp. 75 - 77
Main Author 招礼军 刘思祝 朱栗琼 谢伟东 许科锦
Format Journal Article
LanguageChinese
Published 广西大学林学院,广西南宁,530004%玉林市林业勘测设计院,广西玉林,537000 2012
Subjects
土壤渗透性
土壤物理性质
大容山保护区
水源涵养
土壤渗透性
土壤物理性质
水源涵养
大容山保护区
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ISSN1004-874X
DOI10.3969/j.issn.1004-874X.2012.06.024

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Summary:为评价广西大容山自然保护区森林的水源涵养能力,对6种主要林分的土壤物理性质、土壤渗透性和林地蓄水性能进行研究。结果表明：6种林分的土壤容重在0.99～1.34 g/cm3之间,随深度的增加而增大;土壤总孔隙度在48.32%～62.54%之间,非毛管孔隙度变化在5.40%～26.35%之间,阔叶林地大于针叶林地。土壤的初渗速率在8.36～33.43 mm/min之间,稳渗速率在5.32～23.14 mm/min之间,阔叶林的渗透性能优于针叶林。6种林分土壤0～60 cm层次的有效蓄水量大小依次为：尾叶桉林（1 414 t/hm2）〉红椎林（1 170 t/hm2）〉杉木林（1 083 t/hm2）〉火力楠林（1 023 t/hm2）〉米老排林（831 t/hm2）〉柳杉林（748 t/hm2）。
Bibliography:44-1267/S
soil physical properties; soil infiltration capability; water conservation; Darongshan Reserve
In order to evaluate the ability of water resources conservation of forests in Darongshan Reserve,Guangxi,the soil physical properties,infiltration capability and their water storage capacity of six main forests were examined.The results showed that the soil bulk densities were ranged from 0.99～1.34 g/cm3 and increased with the soil depth.The total soil porosities were 48.32%～62.54% and the non-capillary porosities were 5.40%～26.35%.The soil porosities of broadleaf forests were higher than that of coniferous forests.The soil initial infiltration rates were ranged from 8.36～33.43 mm/min,and the steady infiltration rates were ranged from 5.32～23.14 mm/min.,which the infiltration capability of broadleaf forests better than that of coniferous forests.The effective soil water storage capacity（t/hm2） of 0～60 cm soil depth of six forests in the following order： Eucalyptus urophylla（1414）Castanopsis hystrix（1170）Cun
ISSN:1004-874X
DOI:10.3969/j.issn.1004-874X.2012.06.024