杉木─油桐─仙人草复合系统土壤生物学活性的研究

Studies on the Soil Biology Activity in the Complex Agroforestry Management System of Chinese Fir, Aleurites fordii and Eone chinensis

于１９９２年４月和８月分别对建瓯吉阳１９８４年营造杉木、油桐、仙人草复合系统土壤生物学活性的研究结果表明：与对照的（杉木单作）相比，复合系统土壤微生物总数和各生理类群的数量增加，土壤酶活性得到加强，土壤生化作用强度提高，土壤肥力得到改善，从而有利于杉木的生长．其中杉木─油桐─仙人草复合经营系统的比杉木─油桐复合经营系统的更为明显．

The soil biology activity in complex agroforestry management system of Chinese Fir, Aleurites fordii and Eone chinensis in Jian'ou area,which was silvicultured in 1984,were studied in April and August 1992.The results showed that,in contrast to the control,the total soil microbes and physiological groups of complex system have increased,the soil enzyme activity have strengthened,the soil biochemical activity have raised,and the soil fertility has improved,which is beneficial to the growth of the Chinese Fir.The above-mentioned characteristic is shown more obviously in the complex management.system of Chinese Fir,Aleurites fordii,Eone chinensis than in that of Chinese Fir and Aleurites fordii.