文献类型：期刊文献

英文题名：Drought Effects on Litter Composition and Recovery in a Subtropical Forest

作者：Xiuwen, Zhu[1,3] Zhigao, Fu[2] Hede, Gong[3] Kuzyakov, Yakov[4,5,6] Jing, Zhang[1,11] Zhiyun, Lu[7] Xuemei, Zhu[9] Sisi, Hong[10] Wenjun, Zhou[1,8,11] Handong, Wen[1,8] Qinghai, Song[1,8,11] Yiping, Zhang[1,8,11]

第一作者：Xiuwen, Zhu

机构：[1] CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, China; [2] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China; [3] School of Geography and Ecotourism, Southwest Forest University, Kunming, China; [4] Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, G?ttingen, 37077, Germany; [5] Peoples Friendship University of Russia [RUDN University, Moscow, 117198, Russia; [6] Institute of Environmental Sciences, Kazan Federal University, Kazan, 420049, Russia; [7] Xishuangbanna Tropical Botanical Garden, China; [8] Center of Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Xishuangbanna, 666303, China; [9] Donghua University College of Foreign Languages, Shanghai, China; [10] Forestry and Grassland Bureau of Hekou Yao Autonomous County, Yunnan, China; [11] University of Chinese Academy of Sciences, Beijing, 100049, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240142064)

语种：英文

外文关键词：Ecosystems - Forestry - Fruits - Recovery - Soil moisture - Tropics

摘要：Litter input is a critical link between the circulation and flows of energy and matter in forest ecosystems. Drought events impact litter inputs, further affecting forest ecosystems' nutrient and energy cycles. To investigate the response of litter input to extreme drought, explore their recovery mechanism, and the difference between whole year, concurrent drought, non-drought period, rainy season, and dry season. We studied an extreme drought event in a subtropical evergreen broadleaved forest in the Ailao Mountain in 2009-2010. We used 10 years (2005-2014) of monthly litter input and climate data, including daily rainfall, soil moisture, and air temperature. The observation period was separated into pre-drought (2005–2008), during-drought (2009–2010), and post-drought (2011–2014) periods. During the observation period, the annual total litter input biomass was at a similar level, only decreasing by 3% during drought. During the extreme drought, the input of leaf litter decreased by 22%, while other fractions, such as the branch, increased by 24%, flowers and fruits by 37%, bark by 71%, and moss by 53%. Water environmental factors' contribution to litter input was more obvious after drought events. Monthly average temperature (MAT) mainly affected litter input during non-drought and rainy seasons, while monthly average precipitation (MAP) and soil water content (SWC) affected litter input during the whole year, concurrent drought period, and dry season. Due to the growth and nutritional strategies of each fraction, the recovery time is branch ? 2024, The Authors. All rights reserved.