文献类型：期刊文献

英文题名：Shoot removal interacts with soil temperature to affect survival, growth and physiology of young ramets of a bamboo

作者：Xue, Wei[1] Shen, Jing-Xia[1,2] Guo, Zi-Wu[3] Lei, Jing-Ping[2] Li, Jun-Min[1] Yu, Fei-Hai[1] Li, Mai-He[4]

第一作者：Xue, Wei

通信作者：Yu, FH[1]

机构：[1]Taizhou Univ, Zhejiang Prov Key Lab Plant Evolutionary Ecol & C, Inst Wetland Ecol & Clone Ecol, Taizhou 318000, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[4]Swiss Fed Inst Forest Snow & Landscape Res WSL, CH-8903 Birmensdorf, Switzerland

年份：2021

卷号：481

外文期刊名：FOREST ECOLOGY AND MANAGEMENT

收录：;EI(收录号：20204509448928);Scopus(收录号：2-s2.0-85094820079);WOS:【SCI-EXPANDED(收录号:WOS:000607482200008)】；

基金：We thank Xi Lu for assistance with the experiment. This study was supported by the National Natural Science Foundation of China (grant 31870610, 31761123001) and the Ten Thousand Talent Program of Zhejiang Province (grant 2018R52016) and the Joint Fund of Zhejiang Provincial Natural Science Foundation (grant LTZ20C030001).

语种：英文

外文关键词：Clonal integration; Clonal storage; Indocalarnus decorus; Non-structural carbohydrates

摘要：Global climate change has great effects on ecosystems via changes in air and soil temperature. While the effects of temperature have been extensively studied, relatively few studies have truly separated the impact of soil temperature from that of air temperature. Furthermore, little is known about how removal of older ramets may affect the performance of their interconnected younger ramets of bamboos. By maintaining air temperature constantly (at 17 degrees C) in growth chambers and manipulating soil temperature (2, 7, 12, 17 and 22 degrees C) using thermostatic water bath systems, we tested the effects of soil temperature and removal of the older ramets on survival, growth and physiology of its interconnected young ramet of a bamboo Indocalamus decorus. Soil temperature significantly affected the survival of the young ramet of I. decorus and also the growth and photosynthetic rate of the surviving young ramet when the shoots of its connected older ramets were not removed. Removing shoots of the older ramets greatly enhanced the survival of the young ramet at the two highest soil temperatures (17 and 22 degrees C) and the growth of the surviving ramet at 7 and 12 degrees C. We conclude that shoot removal of older ramets can interact with soil temperature to affect survival and growth of young ramets of the bamboo, and that resource sharing (translocation of photosynthates) from older ramets to young ramets of the bamboo is rather limited. Instead, newly emerged, interconnected ramets of bamboos may compete fiercely for resources stored in rhizomes. These results suggest that bamboo forest management should consider the balance between resource sharing and competition for resources stored in rhizomes under ongoing global climate change.