CAJ | 학술논문

对大兴安岭地区白桦低质林进行不同带宽的带状和不同面积的块状两种不同皆伐方式的改造后枯落物水文效应变化的研究。结果表明：带宽为6～18 m的皆伐带未分解层枯落物蓄积量所占比例均小于半分解层的枯落物蓄积量，面积为5 m×5 m～30 m×30 m的块状区域未分解层枯落物蓄积量所占比例和半分解层比较大小不一；枯落物蓄积量排序：带状皆伐8．67 t/hm2＞块状皆伐4．41 t/hm2。每条带宽的皆伐带未分解层的最大持水量所占比例均小于半分解层的最大持水量，每个面积的块状区域未分解层的最大持水量所占比例和半分解层比较大小不一；枯落物最大持水量排序：块状皆伐35．44 t/hm2＞带状皆伐14．23 t/hm2。每条皆伐带未分解层枯落物有效拦蓄量所占比例均小于半分解层的枯落物有效拦蓄量，每个面积的块状区域未分解层的有效拦蓄量所占比例和半分解层比较大小不一；枯落物有效拦蓄量排序：带状皆伐25．17 t/hm2＞块状皆伐7．81 t/hm2。带状和块状皆伐方式下，枯落物持水量与浸泡时间的关系均呈现对数关系上升，而枯落物吸水速率与浸泡时间的关系均呈现乘幂关系下降。
대대흥안령지구백화저질림진행불동대관적대상화불동면적적괴상량충불동개벌방식적개조후고락물수문효응변화적연구。결과표명：대관위6～18 m적개벌대미분해층고락물축적량소점비례균소우반분해층적고락물축적량，면적위5 m×5 m～30 m×30 m적괴상구역미분해층고락물축적량소점비례화반분해층비교대소불일；고락물축적량배서：대상개벌8．67 t/hm2＞괴상개벌4．41 t/hm2。매조대관적개벌대미분해층적최대지수량소점비례균소우반분해층적최대지수량，매개면적적괴상구역미분해층적최대지수량소점비례화반분해층비교대소불일；고락물최대지수량배서：괴상개벌35．44 t/hm2＞대상개벌14．23 t/hm2。매조개벌대미분해층고락물유효란축량소점비례균소우반분해층적고락물유효란축량，매개면적적괴상구역미분해층적유효란축량소점비례화반분해층비교대소불일；고락물유효란축량배서：대상개벌25．17 t/hm2＞괴상개벌7．81 t/hm2。대상화괴상개벌방식하，고락물지수량여침포시간적관계균정현대수관계상승，이고락물흡수속솔여침포시간적관계균정현승멱관계하강。
The experiment was conducted to study the hydrological effect of falling object in Daxing’an Mountains of birch cop-pice low-quality forest in different bandwidth and different area by two different clear cuttings.The litter proportion volume in not decomposition level is less than that of the half decomposition level in bandwidth for 6 m-18 m clear cutting band. While litter proportion volume in no decomposition level has no significant relationship with the half decomposition level in the area of 5 m×5 m-30 m×30 m.The volume of litter shows band clear cutting 8.67 t/hm2>area clear cutting 4.41 t/hm2 .Water holding capacity in no decomposition layers of the largest proportion is less than that in half decomposition lay-ers in each bandwidth , while water holding capacity in no decomposition layers of the largest proportion has no significant relationship with that in half decomposition layers in each area.Maximum litter moisture capacity shows area clear cutting 35.44 t/hm2>band clear cutting 14.23 t/hm2 .The largest proportion of effective held in no decomposition layers is less than that in half decomposition layers in each bandwidth , while the largest proportion of water holding capacity in no de-composition layers has no significant relationship with effective held in half decomposition layers in each area.Litter effec-tive held shows band clear cutting 25.17 t/hm2>area clear cutting 7.81 t/hm2 .Litter water holding capacity and soaking time are significantly increased with logarithmic relationship, while litter bibulous rate and soaking time are significantly decreased with power relationship .