Rainfall process and nutrient dynamics of artificial Chinese fir plantation in Jiangxi Qianyanzhou experimental station

Course hydrologic and nutrient processes of artificial Chinese fir forest were studied by located experiment．The results show that the average annual rainfall is 1392．0mm ，89．38％ ，0．27％ ，and 10．35％ of which are allocated to throughfall，stemflow，and canopy interception，respectively．The surface runoff output is 9．4％ of the average annum rainfal1．The annual inputting nutrient by rainfall in plantation ecosystem including N ，P，K ，Ca，Mg，Fe，Mn，Sr，Zr，Na，and Si，amounts to 144．032kg／hm²，and the surface runoff output is 155．335kg／hm² The annual net nutrient accumulation is -11．303kg／hm²．