Size dependent associations between tree diameter growth rates and functional traits in an Asian tropical seasonal rainforest

生物 雨林 木质部 胸径 比叶面积 热带雨林 增长率 导水率 生态学 亚热带 相对增长率 植物 叶大小 光合作用 几何学 土壤水分 数学
作者
Yu-Mei Yan,Ze‐Xin Fan,Pei‐Li Fu,Hui Chen,Luxiang Lin
出处
期刊:Functional Plant Biology [CSIRO Publishing]
卷期号:48 (2): 231-231 被引量:10
标识
DOI:10.1071/fp20226
摘要

Many studies focus on the relationships between plant functional traits and tree growth performances. However, little is known about the ontogenetic shifts of the relationships between functional traits and tree growth. This study examined associations between stem and leaf functional traits and growth rates and their ontogenetic shifts across 20 tropical tree species in a tropical seasonal rainforest in Xishuangbanna, south-west China. For each species, physiological active branches of individual trees belonged to three size classes (i.e. small, diameter at breast height (DBH) 5-10 cm; middle, DBH 10-20 cm; big, DBH >20 cm) were sampled respectively. We measured 18 morphological and structural traits, which characterised plant hydraulic properties or leaf economic spectrum. Associations between diameter growth rates and functional traits were analysed across three size classes. Our results revealed that diameter growth rates of big-sized trees were mainly related to traits related to plant hydraulic efficiency (i.e. theoretical hydraulic conductivity (Ktheo) and leaf vein density (Dvein)), which suggests that the growth of large trees is limited mainly by their xylem water transport capacity. For middle-sized trees, growth rates were significantly related to traits representing leaf economic spectrum (i.e. specific leaf area (SLA), individual leaf mass (ILM), palisade thickness (PT) and spongy thickness (SP)). Diameter growth rates of small-sized trees were not correlated with hydraulic or leaf economic traits. Thus, the associations between tree growth rates and functional traits are size dependent. Our results suggest ontogenetic shift of functional traits which could potential contribute to different growth response to climate change.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
科研通AI2S应助整齐荟采纳,获得30
1秒前
周玲玲完成签到 ,获得积分10
1秒前
安安完成签到 ,获得积分10
1秒前
好好好完成签到 ,获得积分10
2秒前
尉迟剑心发布了新的文献求助10
2秒前
4秒前
优雅的千凝完成签到,获得积分10
4秒前
fox2shj完成签到,获得积分10
5秒前
sai完成签到,获得积分10
5秒前
8秒前
老迟到的土豆完成签到 ,获得积分10
8秒前
cuber完成签到 ,获得积分10
10秒前
12发布了新的文献求助10
10秒前
10秒前
11秒前
ylj发布了新的文献求助10
12秒前
www完成签到 ,获得积分10
14秒前
星海梦幻完成签到 ,获得积分10
14秒前
15秒前
abcd发布了新的文献求助10
15秒前
量子星尘发布了新的文献求助10
16秒前
18秒前
19秒前
Hello应助Expelliarmus采纳,获得10
20秒前
15357058526完成签到 ,获得积分10
20秒前
21秒前
聪明白羊完成签到,获得积分10
21秒前
22秒前
smottom应助weixiaozdw采纳,获得10
23秒前
成就井发布了新的文献求助10
25秒前
思思完成签到 ,获得积分10
26秒前
28秒前
28秒前
zzy完成签到 ,获得积分10
32秒前
慕青应助foreverbigbao采纳,获得30
34秒前
34秒前
35秒前
理想国的过客完成签到,获得积分10
35秒前
36秒前
学姐完成签到,获得积分10
37秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 1000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3977847
求助须知:如何正确求助?哪些是违规求助? 3521994
关于积分的说明 11211109
捐赠科研通 3259220
什么是DOI,文献DOI怎么找? 1799563
邀请新用户注册赠送积分活动 878417
科研通“疑难数据库(出版商)”最低求助积分说明 806888