文献类型：期刊文献

英文题名：Allometry of bud dynamic pattern and linkage between bud traits and ecological stoichiometry of Nitraria tangutorum under fertilizer addition

作者：Li, Qinghe[1,2] Duan, Na[3] Liu, Chenggong[1,2] Li, Huiqing[1,2] Xu, Lan[4]

第一作者：Li, Qinghe;李清河

通信作者：Xu, L[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing, Peoples R China;[2]Natl Forestry & Grassland Adm, Key Lab Tree Breeding & Cultivat, Beijing, Peoples R China;[3]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou, Inner Mongolia, Peoples R China;[4]South Dakota State Univ, Dept Nat Resource Management, Brookings, SD 57007 USA

年份：2023

卷号：11

外文期刊名：PEERJ

收录：;Scopus(收录号：2-s2.0-85153101109);WOS:【SCI-EXPANDED(收录号:WOS:000956535900005)】；

基金：Funding This work was supported by the National Natural Science Foundation of China (No. 31470622) , the National Key R&D Program of China (No. 2016YFC05009083; No. 2019YFF030320102) , and the China Scholarship Council (No. 201803270001) . The fundershad no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

外文关键词：Nitraria tangutorum; Aboveground bud; Fertilizer addition; Ecological stoichiometry; Allometry; Bud dynamic pattern; Bud fate

摘要：Affected by the pressure and constraints of available resources, plant growth and development, as well as plant life history strategies, usually vary with environmental conditions. Plant buds play a crucial role in the life history of woody plants. Nitraria tangutorum is a common dominant woody species in desertified areas of northern China and its growth is critical to the desert ecosystem. Revealing the allometry of N. tangutorum aboveground bud fates and the linkage between bud traits and plant nutrient contents and stoichiometric ratios can be useful in understanding plant adaptation strategy. We applied seven nitrogen and phosphorus fertilizer addition treatments to natural N. tangutorum ramets in Ulan Buh Desert in three consecutive years. We surveyed three types of aboveground buds (dormant buds, vegetative buds, and reproductive buds) in each N. tangutorum ramet, then measured the plant carbon (C), nitrogen (N), and phosphorus (P) contents and ratios during three consecutive years. We specified that reserve growth potential (RGP), vegetative growth intensity (VGI) and sexual reproduction effort (SRE) are the three indices of bud dynamic pattern. The results showed that the bud dynamic pattern of N. tangutorum ramets differed significantly among different fertilizer addition treatments and sampling years. The allometry of RGP, VGI, and SRE was obvious, showing size dependence. The allometric growth relationship fluctuated among the sampling years. The linkage between bud traits and plant stoichiometric characteristics of N. tangutorum ramets showed close correlation with plant P content, C:P and N:P ratios, no significant correlation with plant C content, N content and C:N ratio. These results contribute to an improved understanding of the adaptive strategies of woody plants growing in desert ecosystems and provide insights for adoption of effective measures to restore and conserve plant communities in arid and semi-arid regions.