江西农业大学学报2017，Vol.39Issue(3)：516-524,9.DOI:10.13836/j.jjau.2017067
不同林龄木麻黄纯林土壤酶活性与土壤养分研究
Soil Enzyme Activities and Soil Nutrients under Casuarina equisetifolia Pure Forests at Different Stand Ages
摘要
Abstract
To reveal the variation tendency and regularity of soil enzyme activities and soil nutrients under Casuarina equisetifolia protection forest in coastal areas,Casuarina equisetifolia pure forests of three ages(10 a,23 a,33 a)in Dahe State-owned Forest Farm were chosen as the study traget.The relationship between soil enzyme activities and soil nutrients at different Casuarina equisetifolia stand ages was studied.The results showed:with the increase of the stand age,the activities of soil urease,invertase,acid phosphatase,catalase and polyphenol oxidase increased after an initial decrease(23 a>10 a>33 a),soil pH decreased continuously,while soil organic matter,total N,hydrolysis N,total P and available P contentration increased after an initial decrease.Soil total K and readily available K had little change.Soil enzyme activities and soil nutrients were closely correlated.Except for catalase,there were significant correlations between other enzymes and organic matter,total N,hydrolysis N,total P,available P,total K and readily available K respectively,and there were extremely significant correlations between urease,invertase,acid phosphatase and soil nutrients factors.This study shows that soil enzymes and soil nutrients can be used as the important indicators in evaluating soil fertility and quality,and they can reflect the changes of forest land fertility and productivity.关键词
木麻黄/纯林/土壤酶活性/土壤养分Key words
Casuarina equisetifolia/pure forest/soil enzyme activitie/soil nutrients分类
农业科技引用本文复制引用
宫欢欢,尤一泓,林勇明,陈灿,吴承祯,李键..不同林龄木麻黄纯林土壤酶活性与土壤养分研究[J].江西农业大学学报,2017,39(3):516-524,9.基金项目
福建省自然科学基金项目(2015J01607)和福建省科技厅重大专项项目(2012NZ01) Project supported by the Natural Science Foundation of Fujian Province,China(2015J01607)and Major Projects of Science and Technology Department of Fujian Province(2012NZ01) （2015J01607）
