浙江省世行贷款造林项目环境监测研究报告

Report on Environment Monitoring on Afforestation Loaned by World Bank in Zhejiang

在坡度较陡的轻壤质山地红壤上，用全垦整地营造杉木林，地表径流系数在4．2％以下，土壤侵蚀模数仅第1年有少量发生；施用磷酸铵后，土壤中的有效磷头3年均比对照区高，林木高生长比对照区增60％。

Afforestation of Chinese fir (Cunninghamia lanceolata) on red soil of light loam in steep hill by reclamation. Surface runoff coefficient was below 4. 4%. Occurrence of soil erosion moldulu only happened in the first year. After fertilization of ammonium phosphate, active phosphorus content in the first three years was higher than the control. Height growth of trees increased by 60% of the control.