Abstract:This paper deals with the study by plot experiments and measurements on the difference of soil fertility change after planting Chinese fir (Cunninghamia lanceolata )and recovering broad-leaved forest on clear cutting blank during three years. The results showed that soil moisture and available water content reduced, water-physical properties became worse, wa-terstable aggregate content turned lower and dispersion ratio of structures raised in the soil under Chinese fir plantation in comparison with those of...