热带次生林利用方式与土壤微生物活性

Ways of Utilizing Tropical Secondary Forest and Soil Microbial Activity.

热带次生林利用方式与土壤微生物活性许炼烽，朱伍坤（国家环保局华南环境科学研究所，广州５１０６５５）ＷａｙｓｏｆＵｔｉｌｉｚｉｎｇＴｒｏｐｉｃａｌＳｅｃｏｎｄａｒｙＦｏｒｅｓｔａｎｄＳｏｉｌＭｉｃｒｏｂｉａｌＡｃｔｉｖｉｔｙ．￥ＸｕＬｉａｎｆｅｎｇ；Ｚ...

Researches on the influence of different felling intensity and different ways to exploit and uti- lize tropical secondary forest in Hainan Island on soil microbial activity showed that the total quantity of soil microorganism and activity of soil enzyrnes gradually drop down as the felling intensity rise.All activity indexes are lowest in the treatment of clear felling and are signifi- cantly higher in rubber plantation than in slash-and-burn cultivation.It ls suggested that 50%exploitation and strip croppi...