Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Anhui Agricultural Sciences》 2011-13
Add to Favorite Get Latest Update

Study on Soil Nutrients and Enzyme Activities of Four Coniferous Types of West Bank Forest Park of Dianchi Lake

LU Mei et al(Southwest Forestry University,Kunming,Yunnan 650224)  
Through field investigation and experiment analysis,the soil enzyme activities and soil nutrients of four coniferous types were studied.The results showed Pinusarmandii Franch.+ Keteleeria evelyniana Mast with relatively suitable soil bulk density and soil porosity condition,its soil organic matter,available nitrogen and rapidly-available potassium in surface were higher than other pure forest.The surface soil invertase,urease activity of Pinusarmandii Franch.+ Keteleeria evelyniana Mast were larger than other pure forests,and the protease and catalase of Keteleeria evelyniana Mast and Cupressus duclouxiana Hichel was the greatest,respectively.Correlation analysis showed that four kinds of enzymes and soil bulk density were negatively related,and total porosity was positively related.Invertase,catalase and urease and organic,rapidly-available potassium and available nitrogen existed very significant positive correlation,protease and available nitrogen had a significant positive correlation,and organic matter,rapidly-available potassium had no significant correlation.There was an extremely significant positive correlation between invertase and catalase and urease,which suggested various enzymes in promoting the transformation of soil organic matter and to participate in soil substance transformation and energy exchange,not display its exclusive characteristics,while still exist commonness relations.Pinusarmandii Franch.+ Keteleeria evelyniana Mast had obvious advantages.It could obviously improve forest land within the enzyme activity and soil fertility conditions,improving forest ecological environment.
【Fund】: 国家自然科学基金项目(40971285)
【CateGory Index】: S714
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