【摘要】 以松原市乾安县营建的柽柳林、杨树林、油松林、杨树白榆混交林及枸杞林为研究对象,裸地为对照,分别采用土壤水分-物理性质及枯落物持水性质测定方法研究各人工林分凋落物及土壤持水能力,结果表明:各人工林分凋落物现存量排序为杨树林(8.87 t·hm^-2)>杨树白榆混交林(8.65 t·hm^-2)>枸杞林(8.63 t·hm^-2)>柽柳林(8.52 t·hm^-2)>油松林(7.76 t·hm^-2)。柽柳林凋落物的最大持水量及有效拦蓄量最大,分别为16.12 t·hm^-2与12.29 t·hm^-2;油松林凋落物的最大持水量和有效拦蓄量最小,分别为9.98 t·hm^-2和7.89 t·hm^-2。0～30 cm土层中,各林地土壤容重均小于裸地。土壤总孔隙度最大的是柽柳,为41.4%;最小的是杨树白榆混交林,为40.33%。土壤持水量最大的是柽柳林,为414.04 t·hm^-2;土壤持水量最小的是杨树白榆混交林,为402.63 t·hm^-2。通过对5种人工林分的凋落物及土壤层持水能力综合分析,表明柽柳林具有最大的持水能力。因而在吉林省西部地区人工林营建时,可优先考虑柽柳。更多还原

【Abstract】 The mixed forests of Tamarix chinensis,Populus euphratica,Pinus tabulaeformis,mixed Populus euphratica and Ulmus pumila in Qian’an County Songyuan City were used as research objects,and bare soil was used as control.The soil moisture-physical properties and the water-holding properties of litter were used to study the each artificial forest stand litter and soil water holding capacity.The result showed that the standing crop of each artificial forest stand litter was ranked as Populus×xiaohei forest(8.87 t·hm^-2)>Populus×xiaohei and Ulmus pumila mixed forest(8.65 t·hm^-2)>Lycium chinense forest(8.63 t·hm^-2)>Tamarix chinensis forest(8.52 t·hm^-2)>Pinus tabulaeformis forest(7.76 t·hm^-2).The maximum water holding capacity and effective storage capacity of litter in Tamarix chinensis forest were the largest,9.98 t·hm^-2and 7.89 t·hm^-2,respectively.The maximum water holding capacity and effective storage capacity of litter in Pinus tabulaeformis forest were the lowest,9.98 t·hm^-2和7.89 t·hm^-2,respectively.In 0～30 cm soil layer,the soil bulk density of each forest land is smaller than bare land.The largest total soil porosity is Tamarix chinensis,41.4%,the smallest is the mixed forest of Populus euphratica,40.33%.The largest soil water holding capacity is Tamarix chinensis,414.04 t·hm^-2,the smallest soil water holding capacity is the mixed Populus euphratica and Ulmus pumila,402.63 t·hm^-2.Through comprehensive analysis of water holding capacity of litter and soil layer of five artificial forest stands,it can be indicated that Tamarix chinensis had the largest water holding capacity.Therefore,it is preferred to consider Tamarix chinensis when planting forests in the western of Jilin Province,.更多还原