人工针阔混交林水源涵养能力的试验

Experiments of Water Conservation Ability for Artificial Coniferous and Broadleaved Mixed Forest

通过不同林型内自然降水、树冠截留、枯枝落叶和林地土壤持水能力的测定研究了人工针阔混交林的水源涵养效果,结果表明：人工针阔混交林的树冠截留量比红松纯林提高45％和49％;有林地的枯枝落叶的持水能力比无林地多贮水10 m^3 hm^-2,混交林比纯林贮水1.5 m^3 hm^-2;有林地的土壤比无林地多贮水19～22 m^3hm^-2,针阔混交林比红松纯林多贮水4～7 m3 ＆#183;hm-2.

Through determination of the natural rainfall,canopy interception,litters,water-holding capacity of forestland,water conservation of coniferous and broadleaved mixed forest were studied.Result shows that:amount of canopy interception for coniferous and broadleaved mixed forest increase by 45% &49%than that of Pinus koraiensis; water conservation ability of litters on forest land store water 10m3·hm-2 more than that on non-stocked land;soil on forest land store water 19-22m3·hm-2 more than that on non-stocked land;coniferous and broadleaved mixed forest store water 4-7m3·hm-2 more than that of Pinus koraiensis.