Comparative study on active soil organic matter in Chinese fir plantation and native broad-leaved forest in subtropical China

编号 zgly0000363277

文献类型 期刊论文

文献题名 Comparative study on active soil organic matter in Chinese fir plantation and native broad-leaved forest in subtropical China

学科分类 220.99;林学其他学科

作者 WANGQing-kui  WANGSi-long  DENGShi-jian 

作者单位 InstituteofAppliedEcology  ChineseAcademyofSciences  Shenyang110016  P.R.China//GraduateSchoolofAcademyofSciences  Beijing100039  P.R.China  InstituteofAppliedEcology  ChineseAcademyofSciences  Shenyang110016  P.R.China 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2005,16(1)

页码 23-26,i002

年份 2005 

分类号 S791.27  S714.8 

关键词 亚热带地区  杉木人工林  地带性阔叶林  土壤活性有机质  土壤养分 

文摘内容 Active soil organic matter (ASOM) has a main effect on biochemical cycles of soil nutrient elements such as N, P and S, and the quality and quantity of ASOM reflect soil primary productivity. The changes of ASOM fractions and soil nutrients in the first rotation sit eand the second rotation site of Chinese fir plantation and the native broad-leaved forest were investigated and analyzed by soil sampling at the Huitong Experimental Station of Forestry Ecology (at latitude 26~48'N and longitude 109°30'E under a subtropical climate conditions),Chinese Academy of Sciences in March, 2004. The results showed that values of ASOM fractions for the Chinese fir plantations were lower than those for the broad-leaved forest. The contents of easily oxidisable carbon (EOC), microbial biomass carbon (MBC), water solubl ecarbohydrate (WSC) and water-soluble organic carbon (WSOC) for the first rotation of Chinese fir plantation were 35.9%, 13.7%, 87.8% and 50.9% higher than those for the second rotation of Chinese fir plantation, and were 15.8%, 47.3%, 38.1% and 30.2% separately lower than those for the broad-leaved forest. For the three investigated forest sites, the contents of MBC and WSOC had a larger decrease, followed by WSC, and the change of EOC was least. Moreover, soil physico-chemistry properties such as soil nutrients in Chinese fir plantation were lower than those in broad-leaved forest. It suggested that soil fertility declined after Chinese fir plantation replaced native broad-leaved forest through continuous artificial plantation。