福建林学院学报Issue(2)：131-137,7.
酸雨区不同林龄杉木林土壤酶活性季节动态
Seasonal dynamics of the soil enzyme activities under Cunninghamia lanceolata plantations with different tree ages in acid rain area
摘要
Abstract
Seasonal dynamics of the chronosequence soil enzyme activities in different tree ages of Cunninghamia lanceolata planta-tion in acid rain area was investigated .In addition, the correlation between nutrients and enzyme activities in soil was also analyzed . The results indicated as follows .( 1 ) The soil pH increased with the depth of soil .Soil nutrient contents and enzyme activities declined with the depth of soil.(2) The activities of polyphenol oxidase , peroxidase, catalase in the mature plantation were higher than those in the middle plantation and young plantation , and the tend of sucrase activity firstly increased and then decreased with the tree ages.(3) The activities of sucrase, polyphenol, oxidase in spring, winter and autumn were higher than those in summer;the activity of urease in autumn was higher than that in spring , summer and winter; the activity of catalase showed the following trend:summer>autumn>spring and winter , with non-significant difference between spring and winter;the activity of peroxidase in autumn was significantly lower than that in winter , spring and summer.(4) Soil enzyme activities had significant negative correla-tion with soil pH, and had significant positive correlation with soil total nitrogen , total phosphorus, hydrolyzable nitrogen, available phosphorus , available potassium , organic matter content .关键词
酸雨区/杉木人工林/林龄/土壤酶活性/季节动态Key words
acid rain area/Cunninghamia lanceolata plantation/tree ages/soil enzyme activities/seasonal dynamic分类
农业科学引用本文复制引用
罗飞,谢书妮,张海燕,曹光球,危炳忠,陈爱玲..酸雨区不同林龄杉木林土壤酶活性季节动态[J].福建林学院学报,2014,(2):131-137,7.基金项目
国家自然科学基金项目（30972358、31270676）；福建省科技重大专项（2012nz0001）。 （）
