CAJ | 학술논문

为探讨森林枯落物水文过程及规律，对滦河上游3种不同类型林分枯落物及其结构进行了调查，并对其水文效应进行了探讨。结果表明：①油松纯林的枯落物生物量为12．03 t／hm2，最大持水量为19．4 t／hm2，有效拦蓄量为23．52 t／hm2；落叶松纯林的枯落物生物量为9．51 t／hm2，最大持水量为11．9 t／hm2，有效拦蓄量为17．03 t／hm2；落叶松白桦混交林的枯落物生物量为5．54 t／hm2，最大持水量为13．0 t／hm2，有效拦蓄量为13．7 t／hm2。②半分解层枯落物浸泡8 h已基本达到饱和，而未分解层需浸泡10 h ，持水量与浸泡时间的关系式为 Q＝ alnt＋ b；枯落物在浸水的前0．5h内吸水速率最大，4h左右时吸水速率明显减缓。
위탐토삼림고락물수문과정급규률，대란하상유3충불동류형림분고락물급기결구진행료조사，병대기수문효응진행료탐토。결과표명：①유송순림적고락물생물량위12．03 t／hm2，최대지수량위19．4 t／hm2，유효란축량위23．52 t／hm2；락협송순림적고락물생물량위9．51 t／hm2，최대지수량위11．9 t／hm2，유효란축량위17．03 t／hm2；락협송백화혼교림적고락물생물량위5．54 t／hm2，최대지수량위13．0 t／hm2，유효란축량위13．7 t／hm2。②반분해층고락물침포8 h이기본체도포화，이미분해층수침포10 h ，지수량여침포시간적관계식위 Q＝ alnt＋ b；고락물재침수적전0．5h내흡수속솔최대，4h좌우시흡수속솔명현감완。
Based on 3 different types of forest litter layer in the upper reache of the Luanhe River ,the undecomposed and semidecomposed layers as well as the hydrological effect ,were investigated .The results showed:① The litter accumulation amount of Pinus tabulaeformis forest was 12 .03 t/hm2 ,with the maximum water holding capacity of 19 .4 t/hm2 and effec‐tive retaining content of 23 .52 t/hm2 .Larch forest litter biomass was 9 .51 t/hm2 ,and its maximum water holding capacity was 11 .9 t/hm2 ,with its effective retaining content of 17 .03 t/hm2 .The litter biomass of mixed forest of larch and birch was 5 .54 t/hm2 ,with the maximum water holding capacity of 13 .0 t/hm2 and effective retaining content of 13 .7 t/hm2 . ② The semidecomposed litter bsically reached saturation when ,immersed in 8 h while the decomposed litter needed to be soaked for 10 h to reach its saturation .Through the analysis of the relationship between water holding capacity and the soaking time ,the Q= aln t+ b was got ,with the maximum water absorption rate of litter immersed in 0 .5 h ,and obvi‐ous reduction in about 4 h .