Soil carbon dynamics in a Pinus massoniana plantation following clear-cutting and slash removal

作     者：Yuan Wen Jamie LSchuler Shirong Liu Pu Mou Hui Wang Haolong Yu Jingxin Wang 

作者机构：College of Life SciencesBeijing Normal UniversityNo.19 Xin Jie Kou Wai StreetBeijing 100875China Key Laboratory of Forest Ecology and EnvironmentChina’s State Forestry AdministrationInstitute of Forest EcologyEnvironment and ProtectionChinese Academy of ForestryNo.2 DongxiaofuBeijing 100091China Division of Forestry and Natural ResourcesWest Virginia UniversityPO Box 6215MorgantownWV 26506-6125USA The Experimental Center of Tropical ForestryChinese Academy of ForestryGuangxi Youyiguan Forest Ecosystem Research StationPingxiangGuangxi 532600China 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2016年第9卷第1期

页      面：20-29页

核心收录：

学科分类：0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 

基　　金：Ministry of Science and Technology(2012BAD22B01 and 2015DFA31440) China’s National Natural Science Foundation(31290223) the Ministry of Finance(200804001 and 201104006) the Lecture and Study Program for Outstanding Scholars from Home and Abroad(CAFYBB2011007) 

主　　题：plantation management soil organic carbon chemical composition soil respiration soil microbial community fire 

摘      要：Aims Slash removal is a common practice to prepare recently harvested sites for ***,little is known about its impact on soil carbon(C)dynamics in subtropical *** study evaluates the effects of burning versus manual slash removal site preparation treatments on soil organic carbon(SOC),soil respiration and soil microbial community structure in a Pinus massoniana plantation in southern *** Three areas within a mature *** plantation were *** months following harvesting,slash on one-half of each area was burned(BURN),whereas slash was manually removed(MANR)on the other *** removal treatments were also compared with adjacent uncut plantation areas(UNCUT).Soil samples,and soil respiration measurements were used to characterize soil properties and microbial communities following slash removal *** Findings Mean soil respiration rates from the MANR and BURN treatments were 26%and 17%lower,respectively,than the UNCUT treatment over 1 *** MANR and BURN treatment resulted in soils with 27%and 9%reduction in total phospholipid fatty acids(PLFAs)and 18%and 10%reduction in bacterial PLFAs,respectively,compared with the UNCUT ***,no significant differences existed between slash removal treatments with respect to soil chemical properties,SOC chemical compositions,soil respiration and microbial communities;although PLFA patterns were notably different for the burned *** factors affecting C dynamics and microbial communities were not sensitive to the differences imparted to the ecosystem due to manual slash removal or *** results suggested that low-intensity burning after clear-cutting might have no significant effect on soil C pool and its dynamics compared with manual slash removal in subtropical plantations.