浑河上游4种典型林分类型枯落物持水特征  

Water-holding characteristics of four typical forests litter in upstream of Hunhe river

作　　者：顾宇书[1] 邢兆凯[1] 韩友志[1] 刘洪民[1] 高英旭[1] 

机构地区：[1]辽宁省林业科学研究院,辽宁沈阳110032

出　　处：《南京林业大学学报（自然科学版）》2013年第1期31-36,共6页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业公益性行业科研专项项目(200904064)

摘　　要：对浑河上游4种典型林分类型的枯落物持水特性进行了研究。结果表明:枯落物总蓄积量的大小依次为日本落叶松人工林(21.89 t/hm2)、辽东栎天然次生林(18.58 t/hm2)、核桃楸阔叶混交林(15.03 t/hm2)、冷杉针阔混交林(14.38 t/hm2);枯落物最大持水量的大小依次为日本落叶松人工林(55.93 t/hm2)、辽东栎天然次生林(50.42 t/hm2)、核桃楸阔叶混交林(37.84 t/hm2)、冷杉针阔混交林(35.84 t/hm2);枯落物有效拦蓄量大小依次为日本落叶松人工林(42.72 t/hm2)、辽东栎天然次生林(39.09 t/hm2)、核桃楸阔叶混交林(27.41 t/hm2)、冷杉针阔混交林(25.94 t/hm2)。基于日本落叶松人工林和辽东栎天然次生林均有较高的枯落物蓄积量和较高的持水和拦蓄降水能力,在今后的水源涵养林建设时,宜选用日本落叶松、辽东栎为主要树种营造各种混交林。An investigation on water-holding capacity of litter layer in 4 typical forest types was conducted in upper reaches of Hunhe river.Results indicated that the total amount of litter in order of size was Larix kaempferi plantation（21.89 t/hm2）Quercus liaotungensis natural secondary forest（18.58 t/hm2）the mixed forest of Uglans mandshurica,Acer mono,and Fraxinus rhynchophylla（15.03 t/hm2）the mixed forest of Abies nephrolepis,Betula platyphylla and Maackia amurensis（14.38 t/hm2）.The maximum water-holding capacity of litter in order of size was Larix kaempferi plantation（55.93 t/hm2）Quercus liaotungensis natural secondary forest（50.42 t/hm2）the mixed forest of U.mandshurica,A.mono,and F.rhynchophylla（37.84 t/hm2）the mixed forest of A.nephrolepis,B.platyphylla and M.amurensis（35.84 t/hm2）.The modified interception water capacity of litter in order of size was L.kaempferi plantation（42.72 t/hm2）Q.liaotungensis natural secondary forest（39.09 t/hm2）the mixed forest of U.mandshurica,A.mono,and F.rhynchophylla（27.41 t/hm2）the mixed forest of A.nephrolepis,B.platyphylla,and M.amurensis（25.94 t/hm2）.Based on the result,L.kaempferi plantation and Q.liaotungensis natural secondary forest had the highest litter storage and water-holding capacity among the four type forests,there both forest pattern were suitable for water-holding forest construction.

关 键 词：林分类型 枯落物 持水特征 浑河上游 

分 类 号：S718[农业科学—林学]