Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Northeast Forestry University》 2016-09
Add to Favorite Get Latest Update

Soil Microbial Biomass and Enzyme Activities in the Fraxinus mandshurica Mixed Plantations and Secondary Forest

Huang Shuangshuang;Pei Rongcui;Wu Yanshuang;Sun Hailong;Northeast Forestry University;  
Soil microbial biomasses and soil enzyme activities were investigated in the secondary forest( SF) and the mixed plantations of Fraxinus mandshurica and Larix gmelinii( FLP),Fraxinus mandshurica and Picea koraiensis( FPKP),Fraxinus mandshurica and Pinus koraiensis( FPP). The soil microbial biomass carbon( MBC) and nitrogen( MBN) were higher in the SF and FPKP than those in the FLP and FKP. Soil microbial biomass phosphorus( MBP) in the FPP were significantly lower. But the ratio of soil MBC to total carbon and MBN to total nitrogen in 0-10 cm depth were highest in the FPP,while the lowest in the FLP. Soil catalase,sucrase,urease and phosphatase activities in 0- 10 cm depth were also lower in the FPP. There were a significantly positive correlation between soil microbial biomasses and soil enzyme activities,which were positively correlated with the soil total carbon,total nitrogen,total phosphorus and ammonium nitrogen. Therefore,the lower stand density and higher ratio of broadleaf trees increase the soil biological activities in SF,FLP and FPKP,but they are opposite in FPP.
【Fund】: “十二五”国家科技支撑计划(2012BAD21B0202);; 东北林业大学大学生创新项目(201410225066)
【CateGory Index】: S714.3
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved