Effects of exotic species Larix kaempferi on diversity and activity of soil microorganisms in Dalaoling National Forest Park
作者机构:International Center for Ecological Protection and Management in the Three Gorges AreaHubei ProvinceThe China Three Gorges UniversityDaxue Road 8Yichang 443002Hubei ProvincePeople’s Republic of China Engineering Research Center of the Ministry of Education for the Three Gorges Reservoir Region’s Eco-EnvironmentThe China Three Gorges UniversityYichang 443002Hubei ProvincePeople’s Republic of China
出 版 物:《Ecological Processes》 (生态过程(英文))
年 卷 期:2015年第4卷第1期
页 面:118-125页
核心收录:
学科分类:0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学]
基 金:by the National Natural Science Foundation of China(51379105)
摘 要:Introduction:Soil microbial community plays a crucial role in the ecological processes of soil *** species introduction often changes profoundly soil ecological processes in the *** kaempferi(Lam.)was introduced to China from Japan as a timber tree species in the *** activity and functional diversity of soil microorganisms in the *** forest in Dalaoling National Forest Park in Hubei Province,China,was studied to evaluate the effects of this exotic species on the local soil ***:Quadrates were set up randomly in the *** forests cultivated in 1990 and 1996 and the surrounding Pinus armandii forest cultivated in *** samples were collected using a soil corer at five locations along the diagonals in each *** activity and functional diversity of soil microorganisms were tested using the BIOLOG technique in ***:The diversity,activity,and carbon utilization pattern of soil microorganism community and soil physicochemical properties were all impacted by the introduced *** average well color development(AWCD)and Shannon’s richness index(H)of the soil microorganism community in the *** forest decreased with the increase in forest age and were significantly lower than those in the surrounding native *** *** carbon source utilization pattern of soil microorganism community in a 23-year-old *** forest differed significantly from a 17-year-old *** forest and the *** *** introduced species also resulted in the changes of soil physicochemical *** organic material content,total nitrogen,available nitrogen,and total phosphorus in the soil of *** forest were significantly lower than those in the soil of *** ***:Introduction and long-time cultivation of *** significantly altered the soil microbial functional diversity and activity and the soil physicochemical *** alteration increased