文献类型：期刊文献

英文题名：Thinning and species mixing in Chinese fir monocultures improve carbon sequestration in subtropical China

作者：Zhang, Hui[1] Zhou, Guomo[1] Wang, Yixiang[1] Bai, Shangbin[1] Sun, Zhibin[2] Berninger, Frank[1,3] Bai, Yanfeng[4] Penttinen, Petri[1]

第一作者：Zhang, Hui

通信作者：Wang, YX[1]

机构：[1]Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Zhejiang Prov Key Lab Carbon Cycling & Carbon Seq, Linan 311300, Peoples R China;[2]Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA;[3]Univ Eastern Finland, Dept Environm Sci & Biol, PL 111, Joensuu 80101, Finland;[4]Chinese Acad Forestry, Inst Forestry, Beijing 100091, Peoples R China

年份：2019

卷号：138

期号：3

起止页码：433-443

外文期刊名：EUROPEAN JOURNAL OF FOREST RESEARCH

收录：;Scopus(收录号：2-s2.0-85064478672);WOS:【SCI-EXPANDED(收录号:WOS:000467909600006)】；

基金：This research was supported by grants from Natural Science Foundation of China (31770681, 31370641), Natural Science Foundation of Zhejiang Province (LY17C160006), Cooperation Project of the Zhejiang Province and CAF (2016SY07), and the 111 project (D18008). Thanks to the anonymous reviewers for their contribution to the peer review of this work.

语种：英文

外文关键词：Stand conversion; Carbon dynamics; Thinning from below; Crop tree release; Chinese plantation

摘要：Mixed-species forests have potentially more benefits than monocultures particularly in terms of greater carbon sequestration. A 16-year-old Chinese fir (Cunninghamia lanceolata) monoculture in Zhejiang, China, was converted to a Chinese firbroadleaved plantation by thinning from below (TFB) and crop tree release (CTR) methods coupled with planting of Chinese sweet gum (Liquidambar formosana) seedlings. Carbon pools in trees, snags, shrubs and herbs, seedlings, litterfall, forest floor, and mineral soil were measured for 5years. The total tree biomass carbon increase in un-thinned control and CTR stands was approximately 15% higher than that in TFB. The average individual tree biomass C stock increased by 20.5% and 9.2% in CTR and TFB, respectively. Carbon flux through litterfall decreased after thinning but recovered, thereafter, to a level similar in the un-thinned control. Compared to the control, lower tree mortality and higher growth of seedlings in both converted stands resulted in no change in ecosystem C stocks. Carbon stocks in trees and seedlings increased more in CTR than in TFB stands, implying that CTR should be favored when converting pure plantations into mixed-species stands.