CAJ | 학술논문

采用野外取样与室内实验相结合的方法,对江西省信丰县森林健康项目示范区常绿阔叶林、杉木(Cunninghamia lanceolata)林、湿地松(Pinus. elliotii)林、马尾松(P. massoniana)林、毛竹(Phyllostachys pubescens)林、火炬松(P .taeda)林、灌木林7种主要森林类型枯落物储量、持水量、持水率与蒸发速率等指标进行研究.结果表明:(1)杉木林凋落物储量最大,为9.79 t/hm~2;其次是常绿阔叶林(8.72 t/hm~2)、火炬松林(8.24 t/hm~2)、湿地松林(7.77 t/hm~2)、灌木林(7.54 t/hm~2)、毛竹林(4.66 t/hm~2);马尾松林最小,只有3.80 t/hm~2.最大持水量依次是杉木林(18.31 t/hm~2)、灌木林(15.23 t/hm~2)、常绿阔叶林(15.01 t/hm~2)、火炬松林(12.50 t/hm~2)、湿地松(10.24 t/hm~2)、毛竹林(9.02 t/hm~2)、马尾松林(6.54 t/hm~2),其最大持水率分别是187.06%、201.92%、172.22%、151.66%、131.68%、193.41%和172.15%;凋落物蒸发速率呈现湿地松林>毛竹林>火炬松林>马尾松林>灌木林>杉木林>常绿阔叶林的特点;(2)凋落物持水率随浸水时间增加而增加,随蒸发时间增加而减少,二者分别可用方程Rs= t/(a+bt)与Re=a-t/(b+ct)进行较好的拟合;(3)从各项水文特征指标来比较,阔叶林、杉木林水文生态效应最好,马尾松林、湿地松林最差.
채용야외취양여실내실험상결합적방법,대강서성신봉현삼림건강항목시범구상록활협림、삼목(Cunninghamia lanceolata)림、습지송(Pinus. elliotii)림、마미송(P. massoniana)림、모죽(Phyllostachys pubescens)림、화거송(P .taeda)림、관목림7충주요삼림류형고락물저량、지수량、지수솔여증발속솔등지표진행연구.결과표명:(1)삼목림조락물저량최대,위9.79 t/hm~2;기차시상록활협림(8.72 t/hm~2)、화거송림(8.24 t/hm~2)、습지송림(7.77 t/hm~2)、관목림(7.54 t/hm~2)、모죽림(4.66 t/hm~2);마미송림최소,지유3.80 t/hm~2.최대지수량의차시삼목림(18.31 t/hm~2)、관목림(15.23 t/hm~2)、상록활협림(15.01 t/hm~2)、화거송림(12.50 t/hm~2)、습지송(10.24 t/hm~2)、모죽림(9.02 t/hm~2)、마미송림(6.54 t/hm~2),기최대지수솔분별시187.06%、201.92%、172.22%、151.66%、131.68%、193.41%화172.15%;조락물증발속솔정현습지송림>모죽림>화거송림>마미송림>관목림>삼목림>상록활협림적특점;(2)조락물지수솔수침수시간증가이증가,수증발시간증가이감소,이자분별가용방정Rs= t/(a+bt)여Re=a-t/(b+ct)진행교호적의합;(3)종각항수문특정지표래비교,활협림、삼목림수문생태효응최호,마미송림、습지송림최차.
Investigations were carried out on the storage, water holding capacity and evaporation rate of seven types of forest litters in Demonstration Area of Forest Health Management Project in Xinfeng County, Jiangxi Province. Laboratory tests resulted that; ( 1) The litter storage (t/hm~2 ) of Cunninghamia lanceolata plantation was the largest (9.789) among the 7 forests .followed by the evergreen broad -leaved forest (8.715) , Pinus taeda plantation (8.241),P. Ellwtii plantation (7. 774) .Shrubbery (7. 541),Phyllostachys pubescent plantation (4. 663) and P. Massoniana (3. 801). The order of maximum water holding capacity was; C. Lanceolata plantation > shrubbery > evergreen broadleaved forest > P. Taeda plantation > P. Elliotii plantation > Phyllostachys pubescent plantation > P. Massoniana forest, their proportional water holding capacity as a percentage of the litter nature dry weight were 187.06,201.92,172.22,151.66,131.68,193.41 and 172.15 respectively, and the order of the evaporation rate of absorbed water in litter was P. Elliotii plantation > Phyl-lostachys pubescent plantation > P. Taeda plantation > P. Massoniana forest > shrubbery > C. Lanceolata planta-tion > evergreen broadleaved forest; the water holding capacity of litter in all forests increased with the increase of water immersion time and decreased with evaporation time. The relationship between water holding capacity and immersion time was R, =t/(a + bt) ;the relationship between water holding capacity and evaporation time was Rt=a-t/(b+ct). Comparative analysis showed that the evergreen broadleaved forest and C. Lanceolata plantation had the best hydrological effects,the last was P. Massoniana forest and P. Eliiotii plantation.