中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > Forest management causes soil carbon loss by reducing particulate organic carbon in Guangxi, Southern China 森林生态系统(英文版) 2023,10
Position: Home > Articles > Forest management causes soil carbon loss by reducing particulate organic carbon in Guangxi, Southern China Forest Ecosystems 2023,10

Forest management causes soil carbon loss by reducing particulate organic carbon in Guangxi, Southern China

作  者：
Xiaojie Li;Qiufang Zhang;Jiguang Feng;Demeng Jiang;Biao Zh
单  位：
Corresponding author.; Institute of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, 100871, Chin;Institute of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, 100871, China
关键词：
Soil organic carbon;Forest management;Mineral-associated organic carbon;Particulate organic carbon;Microbial necromass carbo
摘  要：
The loss of soil organic carbon (SOC) following conversion of natural forests to managed plantations has been widely reported. However, how different SOC fractions and microbial necromass C (MNC) respond to forest management practices remains unclear. We sampled 0–10 ​cm mineral soil from three different management plantations and one protected forest in Guangxi, Southern China, to explore how forest management practices affect SOC through changing mineral-associated C (MAOC) and particulate organic C (POC), as well as fungal and bacterial necromass C. Compared with the protected forest, SOC and POC in the abandoned, mixed and Eucalyptus plantations significantly decreased, but MAOC showed no significant change, indicating that the loss of SOC was mainly from decreased POC under forest management. Forest management also significantly reduced root biomass, soil extractable organic C, MNC, and total microbial biomass (measured by phospholipid fatty acid), but increased fungi-to-bacteria ratio (F:B) and soil peroxidase activity. Moreover, POC was positively correlated with root biomass, total microbial biomass and MNC, and negatively with F:B and peroxidase activity. These results suggested that root input and microbial properties together regulated soil POC dynamics during forest management. Overall, this study indicates that forest management intervention significantly decreases SOC by reducing POC in Guangxi, Southern China, and suggests that forest protection can help to sequester more soil C in forest ecosystems.

相似文章

导出引用
计量
文章访问数: 15
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46