Abstract:In order to know the effect of the forest of Pinus elliottii under highly intensive management on environment，a consecutive 6-year systematic research of locating monitoring was conducted by taking the newly-built sapling forest of Pinus elliottii as the target and by setting up the field of runoff．The monitoring results showed 6435.3mm of precipitation during monitoring period，1611.241 t/hm2 of runoff，2784.4777kg／hm2 of silt loss，131 kg/hm2 of the main nutrients as N、P、K，3.16％of the runoff coefficient，by building forest of Pinus elliottii in the hilly area of Anhui Province，carrying out large blocked，site preparation(80 cm×80 cm×50 cm)and intensive management in order not to cause heavy soil and water loss，the modulus of soll erosion in the year of afforestation was 195.59t/hm2，belonging to the type of non-obvious erosion，thus high-grade site preparation and intensive management can be advocated in this area；May～August was the intensive precipitation period，related afforestation activities should be avoided；the soil and water loss was in a relationship of power function with precipitation，with the forestgrowth and the restoration of vegetation，the runoff amount gradually decreased，and the silt loss considerably reduced as well．