摘 要：
由华北落叶松组成的林分是接坝地区最主要林分类型,是该地区水源涵养林的重要组成部分。为了阐明六种华北落叶松林分类型的水源涵养功能,对接坝地区华北落叶松林、华北落叶松—白桦、华北落叶松—棘皮桦—白桦、华北落叶松—山杨—白桦、华北落叶松—油松、华北落叶松—云杉—白桦—山杨6种典型林分类型的水源涵养功能进行初步的研究。结果表明:①枯落物厚度范围为36.5～48.6 mm,蓄积量为25.61 t·hm~(-2)～35.64 t·hm~(-2),枯落物最大拦蓄量范围为55.52～120.83 t·hm~(-2),枯落物有效拦蓄量范围为46.32～100.07 t·hm~(-2),大小排序为:Ⅵ>Ⅱ>Ⅳ>Ⅰ>Ⅲ>Ⅴ。②枯落物持水量与浸水时间关系表达式为:Q=alnt+b(R~2>0.98),持水速率与与浸水时间呈幂函数关系,关系式为:V=Kt~n(R~2>0.99)。③土壤容重为0.82 g/cm~3～1.37 g/cm~3,土壤有效持水量大小排序为:Ⅵ>Ⅳ>Ⅲ>Ⅱ>Ⅴ>Ⅰ;土壤毛管持水量大小排序为:Ⅵ>Ⅲ>Ⅱ>Ⅳ>Ⅴ>Ⅰ;饱和持水量大小排序为:Ⅵ>Ⅲ>Ⅱ>Ⅳ>Ⅴ>Ⅰ。④土壤初渗速率大小排序为:Ⅵ>Ⅱ)>Ⅲ>Ⅳ>Ⅴ>Ⅰ;稳渗速率大小排序为:Ⅵ>Ⅲ>Ⅱ>Ⅳ>Ⅰ>Ⅴ;林分土壤入渗时间和入渗速率的回归方程为:y=a·x~b(R~2>0.93)。
译 名：
WATER CONSERVATION FUNCTION OF 6 TYPICAL LARIX PRINCIPIS-RUPPRECHTII FORESTS IN THE DAM AREA
作 者：
ZHANG Yin;ZHANG Nan;LIANG Wenjun;GUO Binliang;Shanxi Forestry Vocational and Technical College;Mulan-Weichang Forestry Administration of Hebei Province;Shanxi Agricultural University;Baoding Forest Seedling Management Station;
单 位：
ZHANG Yin%ZHANG Nan%LIANG Wenjun%GUO Binliang%Shanxi Forestry Vocational and Technical College%Mulan-Weichang Forestry Administration of Hebei Province%Shanxi Agricultural University%Baoding Forest Seedling Management Station
关键词：
Dam area;;forest types;;water conservation
摘 要：
The stand composed of Larix principis-rupprechtii is the most important forest type in the dam area. It is an important part of the water conservation forest in this area. In order to clarify the water conservation function of six types of Larix principis-rupprechtii forests,6 typical forest types of Larix principis-rupprechtii forest,Larix principis-rupprechtii-birch,Larix principis-rupprechtii-Birch birch, Larix principis-rupprechtii-Poplar-birch,Larix principis-rupprechtii-Pinus tabulaeformis, Larix principis-rupprechtii-birch-Betula-Poplar,The water conservation function of the water source is preliminarily studied.The results were as follows:(1) the thickness range of the litter was 36.5～48.6 mm, the accumulative amount was 25.61 t hm-2～35.64 t·hm~(-2),the maximum storage range of the litter was 55.52～120.83 t·hm~(-2),and the effective range of the litter was 46.32～100.07 t·hm~(-2).The size of the litter was:VI>II>IV>I>III>V.(2) the relationship between water holding time and water immersion time is Q=alnt+b(R~2>0.98). The relationship between the water holding rate and the soaking time is a power function relationship, and the relation is V=Kt~n(R~2>0.99).(3) the soil bulk density is 0.82 g/cm~3～1.37 g/cm~3,and the order of soil effective water holding capacity is VI>IV>III>II>V>I.The order of soil capillary water holding capacity isVI>III>II>IV>V>I;the order of saturated water holding capacity is VI>III>II>IV>V>I.(4) the order of soil initial infiltration rate is:VI>II)>III>IV>V>I;the order of the rate of steady infiltration rate is:VI>III>II>IV>I>V;the regression equation of soil infiltration time and infiltration rate is y=a·x~b(R~2>0.93).
