文献类型：期刊文献

英文题名：AboveGround Biomass and Nutrient Accumulation in Ten Eucalyptus Clones in Leizhou Peninsula, Southern China

作者：Zhang, Peng[1] Cui, Zhiyi[1] Liu, Xiaojin[1] Xu, Daping[1]

第一作者：Zhang, Peng

机构：[1] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, 510520, China

年份：2022

卷号：13

期号：4

外文期刊名：Forests

收录：EI(收录号：20221611984524);Scopus(收录号：2-s2.0-85128305214)

语种：英文

外文关键词：Cloning - Calcium - Nutrients - Phosphorus - Ecology - Efficiency - Forestry - Nitrogen - Potassium - Genes - Magnesium

摘要：Selecting suitable clones and regulating nutrients for Eucalyptus plantation are a key management practice for improving productivity and nutrient use. Therefore, this study evaluated growth performance, aboveground biomass, nutrient content (nitrogen, phosphorus, potassium, calcium, and magnesium) and nutrient use efficiency (NUE) of ten Eucalyptus Clones for three sites in Leizhou Peninsula. The present study showed a significant genetic variation among clones in growth parameters. Organs have different characteristics in biomass and nutrient content. Stemwood had the highest biomass but lowest total nutrient concentration. While, the stembark exhibited high contents of nutrients and biomass. On average, the NUE of clones was in the following order: phosphorus > magnesium > nitrogen >potassium > calcium. Taken together, among ten clones tested, clones LH19211, TH9224, DH3213, M1 and DH3222 showed consistently growth and production performance, as well, their NUE were superior in ten clones. Maximum amount of biomass was allocated to economically harvestable component (stemwood) and nutrients in non-harvestable components (stembark and foliage). While nutrients are removed from the planting area as part of the harvest, we can calculate nutrients loss by NUE and biomass. These findings provided useful insights for selection of Eucalyptus Clones and regulating nutrient export during the harvest of Eucalyptus Clones from a planted forest system. ? 2022 by the authors. Licensee MDPI, Basel, Switzerland.