Effects of Different Altitude Gradient on Soil Phosphorus Composition in Mount Huangshan Pine Forest
To analyze the effect of different altitude gradients on phosphorus(P)composition of soil in Mount Huan-gshan pine forest.The subtropical Pinus taiwanensis forest was selected as the analysis object of this study,and the basic physical and chemical properties and phosphorus components of soil in the eluviation layer and sediment layer of the Mount Huangshan pine forest at an altitude of 1 300 m and 1 600 m were compared with those of the Mount Huangshan pine forest at different altitudes.Basic physical and chemical properties of soil:The soil temperature,to-tal nitrogen(TN),organic carbon(SOC),nitrate nitrogen(NO3-)content in the leaching layer of Mount Huangs-han pine forest at 1 300 m altitude were higher than those at 1 600 m altitude(P＜0.05);The pH value,water con-tent(M),ammonium nitrogen(NH4+-N),TN,SOC,NO3-content in the sediment of Mount Huangshan pine forest at 1 300 m above sea level are higher than those of the forest at 1 600 m above sea level;Soil phosphorus composi-tion:Except for the soil Resin-P in the eluvial layer,the proportion of easily decomposable phosphorus(NaHCO3-Pi,NaHCO3-Po),moderately decomposable phosphorus(NaOH-Pi,NaOH-Po),difficultly decomposable phosphorus(Resin-P),and total phosphorus(TP)in the eluvial layer and sediment layer of the forest land at an altitude of 1 300 m is higher than that of the forest land at an altitude of 1 600 m(P＜0.05).The basic physical and chemical proper-ties and soil phosphorus components of the Mount Huangshan pine forest in the subtropical region are greatly affect-ed by altitude,providing a certain basis for soil phosphorus control in the Mount Huangshan pine forest.
Soil phosphorus componentBasic physical and chemical properties of soilMount Huangshan pineAl-titude gradient
万方数据
维普
