红壤侵蚀区几种水土保持林水文效应研究
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国家农业科技成果转化资金项目“花岗岩侵蚀区水土保持植物优化技术区域试验与示范”(02EFN213601114)


Hydrological Effects of Soil and Water Conservation Forest in Red-soil Erosion Region
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    摘要:

    水土保持林对天然降雨起着截流、吸收的作用。系统研究了试验区内马尾松林、湿地松林、板栗林以及马尾松+板栗混交林的冠层、枯落物层及土壤层的水文效应。结果发现,不同林分在这3个方面均表现出差异。(1)林冠层截留量针叶林大于阔叶林,针阔混交林居中,其顺序为:湿地松林>马尾松林>针阔混交林>板栗林。(2)林下枯落物层有效拦蓄量和土壤蓄水功能阔叶林大于针叶林,针阔混交林居中,其顺序为:板栗林>针阔混交林>马尾松林>湿地松林。通过3个层次水文效应研究,揭示出营造和经营管理水土保持林时,应促使3个水文层次功能的同时优化,尽量营造针阔混交林,增加植被层次结构的复杂性,既要发挥针叶林林冠层截留效应,又要发挥阔叶林枯落物层和土壤层的涵养水源功能。

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    Rainfall can be intercepted and assimilated by soil and water conservation forest.Based on the ana- lyses of hydrological effects of canopy, litter fall, and soil for different stands such as Masson pine, Pinus elliotii, Chinese chestnut, and Masson pine &.Chinese chestnut mixed forest, the study showed that in terms of the interception amount of forest canopies, stands ranked in the descendant order of Pinus elliotii, Masson pine, needle-board leaf mixed forest, and Chinese chestnut.Stands, in terms of the effective inter- ception amount and water holding of soil for litter, ranked in the descendant order of Chinese chestnut, nee- dle-board leaf mixed forest, Masson pine, and Pi nus elliotii.When planting and managing soil and water conservation forest, the three layer hydrologic function should be optimized simultaneously and a prior con- sideration should be given to the needle-board leaf mixed forest.The forest had a complicated vegetation structure and was propitious to exert interception eff ect of needle leaf forest and headwater conservation function of litter and soil of board leaf forest.

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喻荣岗,左长清,杨洁,谢颂华,李小强,王昭艳.红壤侵蚀区几种水土保持林水文效应研究[J].水土保持通报,2007,(6):195-198

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  • 收稿日期:2006-11-22
  • 最后修改日期:2007-08-02
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  • 在线发布日期: 2014-12-16
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