文献类型：期刊文献

英文题名：Effects of different management approaches on the stoichiometric characteristics of soil C, N, and P in a mature Chinese fir plantation

作者：Bai, Yanfeng[1,2] Chen, Shiyou[1] Shi, Shuorong[1] Qi, Mengjuan[1] Liu, Xiuhong[1] Wang, Hui[1] Wang, Yixiang[3] Jiang, Chunqian[1,2]

第一作者：白彦锋;Bai, Yanfeng

通信作者：Jiang, CQ[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Natl Forestry & Grassland Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China;[3]Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Hangzhou 311300, Peoples R China

年份：2020

卷号：723

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20201308353955);Scopus(收录号：2-s2.0-85082165839);WOS:【SCI-EXPANDED(收录号:WOS:000535465200011)】；

基金：This study was supported by the National Key Research and Development Program of China (2017YFC0505604). We thank the facilities made available by Prof. Wang Silong at the Huitong National Research Station of Forest Ecosystem. We are grateful toMr. Yu Xiaojun for assistance with the experiments.

语种：英文

外文关键词：Chinese fir; Soil stoichiometry; Clear-cutting; Control-burning; Tea garden

摘要：Carbon (C), nitrogen (N), and phosphorus (P) are commonly used to evaluate soil quality. However, still little is known about the effects of human activities on soil C, N, and P. In this study, we compared the stoichiometric characters of soil C, N, and P in a mature Chinese fir ( C. lanceolata) plantation under four forest management approaches: uncut as a control (NC), clear-cutting (CC), controlled burning after clear-cutting (CCB) and conversion into a tea garden (TG). We measured the total C (TC), total N (TN), and total P (TP) contents and evaluated the ratios of C: N, C:P, N:P, and C:N: P in each treatment. The results showed that: (1) the contents of TC and TN in all management approaches decreased with increasing soil depth, while the TP content in NC, CC, and CCB decreased at first, then increased. More importantly, there was no significant difference in TP content under the four management approaches. ( 2) The ratios of C:N, C:P, N:P, and C:N: P decreased with increasing soil depth. Interestingly, the ratio of C:N was lower than that of C:P in every management approach. (3) Despite the different management approaches (NC, CC, CCB, and TG), the ratios of soil C:N:P were relatively stable, which were 24:4:1, 26: 4:1, 21:3:1, and 21:3:1, respectively. CCB showed the greatest negative effect on soil TC, TN, and TP contents, suggesting it might be beneficial to avoid this approach for Chinese fir management. (C) 2020 Elsevier B.V. All rights reserved.