文献类型：期刊文献

英文题名：Effects of forest regeneration practices on the flux of soil CO2 after clear-cutting in subtropical China

作者：Wang, Yixiang[1] Zhu, Xudan[1] Bai, Shangbin[1] Zhu, Tingting[1] Qiu, Wanting[1] You, Yujie[1] Wu, Minjuan[1] Berninger, Frank[1,2] Sun, Zhibin[3] Zhang, Hui[1] Zhang, Xiaohong[4]

第一作者：Wang, Yixiang

通信作者：Wang, YX[1]|[a00057aac633dd71578ea]王懿祥;

机构：[1]Zhejiang A&F Univ, Sch Environm & Resources Sci, Key Lab Carbon Cycling Forest Ecosyst & Carbon Se, State Key Lab Subtrop Silviculture, Linan 311300, Zhejiang, Peoples R China;[2]Univ Helsinki, Dept Forest Sci, POB 27, FIN-00014 Helsinki, Finland;[3]Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA;[4]Chinese Acad Forestry, Res Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China

年份：2018

卷号：212

起止页码：332-339

外文期刊名：JOURNAL OF ENVIRONMENTAL MANAGEMENT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000428097500035)】；

基金：This work was supported by the National Natural Science Foundation of China (31370641), Natural Science Foundation of Zhejiang Province (LY17C160006) and CAF-Zhejiang Province cooperation project (2016SY07). The authors wish to acknowledge Prof. Petri Penttinen, Zhejiang A & F University, for his help in revising the manuscript. Thanks the anonymous reviewers for their contribution to the peer review of this work.

语种：英文

外文关键词：Soil CO2 flux; Clear-cutting; Reforestation; Soil-atmosphere exchange; Subtropical forest

摘要：Reforestation after clear-cutting is used to facilitate rapid establishment of new stands. However, reforestation may cause additional soil disturbance by affecting soil temperature and moisture, thus potentially influencing soil respiration. Our aim was to compare the effects of different reforestation methods on soil CO2 flux after clear-cutting in a Chinese fir plantation in subtropical China: uncut (UC), clear-cut followed by coppicing regeneration without soil preparation (CC), clear-cut followed by coppicing regeneration and reforestation with soil preparation, tending in pits and replanting (CCRP), and clear-cut followed by coppicing regeneration and reforestation with overall soil preparation, tending and replanting (CCRO). Clear-cutting significantly increased the mean soil temperature and decreased the mean soil moisture. Compared to UC, CO2 fluxes were 19.19, 37.49 and 55.93 mg m(-2) h(-1) higher in CC, CCRP and CCRO, respectively (P<0.05). Differences in CO2 fluxes were mainly attributed to changes in soil temperature, litter mass and the mixing of organic matter with mineral soil. The results suggest that, when compared to coppicing regeneration, reforestation practices result in additional CO2 released, and that regarding the CO2 emissions, soil preparation and tending in pits is a better choice than overall soil preparation and tending. (C) 2018 Elsevier Ltd. All rights reserved.