文献类型：期刊文献

英文题名：Drought Changes the Litter Quantity and Quality, and Soil Microbial Activities to Affect Soil Nutrients in Moso Bamboo Forest

作者：Ge, Xiaogai[1,2] Wang, Cunguo[3] Wang, Lingling[4] Zhou, Benzhi[1,2] Cao, Yonghui[1,2] Xiao, Wenfa[5] Li, Mai-He[3,6,7]

第一作者：葛晓改;Ge, Xiaogai

机构：[1] Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Zhejiang, Hangzhou, 311400, China; [2] Qianjiangyuan Forest Ecosystem Research Station, National Forestry and Grassland Administration, Zhejiang, Hangzhou, 311400, China; [3] Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, 130024, China; [4] Forestry and Water Conservancy Bureau of Fuyang District in Hangzhou, Hangzhou, 311400, China; [5] National Forestry Administration Key Laboratory of Forest Ecology and Environment, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing, 100091, China; [6] Swiss Federal Institute for Forest, Snow and Landscape research WSL, Zuercherstrasse 111, Birmensdorf, CH–8903, Switzerland; [7] Erguna Forest-Steppe Ecotone Research Station, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220007576)

语种：英文

外文关键词：Bamboo - Carbon - Climate change - Enzyme activity - Forestry - Microorganisms - Nutrients - Soils

摘要：Decreased precipitation induced by global climate change would significantly influence the forest soils through changing the litterfall production and decomposition process. However, less attention has been paid to drought effects on litter production and decomposition, soil microbial community structure, soil enzyme activity and thus soil nutrients in moso bamboo ( Phyllostachys edulis ) forests. Here, we conducted a throughfall exclusion experiment in moso bamboo forests to investigate effects of drought on litter quantity, quality, soil microbial and enzyme activities, and soil nutrients across two years in subtropical China. We observed that throughfall exclusion(TE) treatment significantly decreased annual leaf litterfall in the second year. TE treatmentdramatically reduced the leaf litter decomposition rate over 2 years of decomposition. TE treatment significantly decreased the net release of litter carbon (C)and phosphorus(P), but increased litter nitrogen (N) net release, accordingly increased litter C: N and C: P ratios. Soil peroxidase activitywas lower, but soil urease activity was higher in TE treatments than those in control treatments. There was distinct difference in soil microbial community structure between TE treatments and control treatments, showing that TE treatment significantly increased the bacteria biomass,but had no effect on the fungal biomass. Our findings indicate that future drought projected will significantly influence litterfall production and their decomposition, soil microbial and enzyme activities, affecting soil nutrient balance in moso bamboo forests, which will further negatively affect bamboo growth, and carbon stocks and nutrient cycling in a changing climate. ? 2022, The Authors. All rights reserved.