关键词：
接坝地区;典型林分;枯落物;土壤;水文效应
摘 要：
以八英庄林场9种典型林分类型为研究对象,对其枯落物层、土壤层水文效应进行研究,结果表明:(1)9种典型林分类型枯落物蓄积量在5.79~24.97t/hm~2的范围内,排序为白桦纯林>白桦山杨混交林>油松纯林>山杨纯林>蒙古栎纯林>落叶松油松混交林>白桦黑桦混交林>落叶松纯林>落叶松白桦混交林。(2)9种典型林分类型枯落物持水能力有一定差异,排序为白桦山杨混交林>山杨纯林>油松纯林>白桦纯林>白桦黑桦混交林>落叶松油松混交林>蒙古栎纯林>落叶松白桦混交林>落叶松纯林。(3)枯落物持水量与浸水时间呈较好的指数关系,相关系数在0.95以上,吸水速率与浸水时间呈较好的幂函数关系,相关系数大于0.9。(4)白桦山杨混交林枯落物有效拦蓄量最大为52.63t/hm~2,落叶松白桦混交林枯落物有效拦蓄量最小为14t/hm~2。(5)蒙古栎纯林土壤持水能力最强为117.42t/hm~2,其次是白桦山杨混交林为104.75t/hm~2,白桦纯林土壤持水能力最差为37.80t/hm~2。(6)土壤初渗速率在2.3~56.8mm/min范围内,土壤入渗速率与入渗时间呈较好的幂函数关系,相关系数大于0.95。
译 名：
Hydrological Effects of Litter and Soils in Nine Forest Types of the Jieba Region
作 者：
CHEN Jidong;ZHOU Changliang;LI Huili;Mulan Forestry Adminstration Bureau;
关键词：
Jieba region;;forest types;;litter;;soil;;hydrological effect
摘 要：
A pilot study of hydrological effects of litter and soil layer was carried out in nine forest types in Bayingzhuang forest farm.The results showed:(1)the total storage capacity of litter was about 5.79~24.97 t/hm~2,which decreased in the order:Betula platyphylla Suk.pure forest>Betula platyphylla Suk.-Populus davidiana mixed forest>Pinus tabuliformis pure forest>Populus davidiana pure forest>Quercus mongolica pure forest>Larix principis rupprechti-Pinus tabuliformis mixed forest>Betula platyphylla Suk.-Betula davurica mixed forest>Larix principis rupprechti pure forest>Larix principis rupprechti-Betula platyphylla Suk.mixed forest;(2)there were some differences in water holding capacities of litter in 9 forest types,which decreased in the order of Betula platyphylla Suk.-Populus davidiana mixed forest>Populus davidiana pure forest>Pinus tabuliformis pure fores>Betula platyphylla Suk.pure forest>Betula platyphylla Suk.-Betula davurica mixed forest>Larix principis rupprechti-Pinus tabuliformis mixed fores>Quercus mongolica pure forest>Larix principis rupprechti-Betula platyphylla Suk.mixed forest>Larix principis rupprechti pure forest;(3)water holding capacity and soaking time had the significant logarithmic relationship,the correlation coefficient was above 0.95;the relationship between absorption rate and soaking time could be described by power function,the correlation coefficient was greater than 0.90;(4)the modified interception amount of Quercus mongolica pure forest was the strongest,which was 52.63 t/hm~2;the modified interception amount of Larix principis rupprechti-Betula platyphylla Suk.mixed forest was the least,which was 14 t/hm~2;(5)water holding capacity of soil in Quercus mongolica pure forest was strongest,which was 117.42 t/hm~2,water holding capacity of soil in Betula platyphylla Suk.-Populus davidiana mixed forest came the next,which was 104.75 t/hm~2,water holding capacity ofsoil in Betula platyphylla Suk.pure forest was the least,which was 37.80 t/hm~2;(6)the soil initial infiltration rate was about 2.3~56.8 mm/min;The relationship between the infiltration rate and infiltration time could be fitted by power function,the correlation coefficient was greater than 0.95.
