Litter decomposition and the degradation of recalcitrant components in Pinus massoniana plantations with various canopy densities

作     者：Jie Zhang Danju Zhang Zhang Jian Hongyang Zhou Yanbo Zhao Daping Wei 

作者机构：Key Laboratory of Ecological Forestry Engineering of Sichuan ProvinceInstitute of Ecology and ForestrySichuan Agriculture University 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2019年第30卷第4期

页      面：1395-1405页

核心收录：

学科分类：09[农学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Number 31370628) the National Science and Technology Support Project of China(Grant Number2011BAC09B05) the Sichuan Provincial Science and Technology Support Project(Grant Number 12ZC0017) 

主　　题：Pinus massoniana Canopy density Litter decomposition Lignin Cellulose 

摘      要：To understand the decomposition characteristics of Pinus massoniana foliar litter and the degradation of its refractory compounds in plantations under five canopy densities,a litter bag experiment over a decomposition time of 392 days was carried *** results show that canopy density significantly affected decomposition rates of litter and degradation rate of lignin and *** decomposition rates decreased significantly with decreasing canopy *** lignin and cellulose degradation rates were lower with canopy densities of 0.62 and 0.74 as compared with the three other *** and cellulose losses were more rapid in the first 118 *** fauna had significant impacts on litter decomposition and the degradation of refractory *** density had significant effects on factors such as soil properties and soil fauna community structure,which could be conducive to the decomposition of litter and the degradation of litter recalcitrant *** density between 0.6 and 0.7 might be a favorable management practice promoting litter decomposition and beneficial for the sustainable development of *** plantations.