文献类型：期刊文献

英文题名：Contrasting Leaf Trait Responses of Conifer and Broadleaved Seedlings to Altered Resource Availability Are Linked to Resource Strategies

作者：Zhang, Yan-Li[1,2] Moser, Barbara[2] Li, Mai-He[2,3] Wohlgemuth, Thomas[2] Lei, Jing-Pin[1] Bachofen, Christoph[4]

第一作者：Zhang, Yan-Li

通信作者：Moser, B[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Swiss Fed Res Inst Forest Snow & Landscape Res WS, Forest Dynam, CH-8903 Birmensdorf, Switzerland;[3]Northeast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun 130024, Peoples R China;[4]Ecole Polytech Fed Lausanne EPFL, Environm Sci & Engn, CH-1015 Lausanne, Switzerland

年份：2020

卷号：9

期号：5

外文期刊名：PLANTS-BASEL

收录：;Scopus(收录号：2-s2.0-85085282867);WOS:【SCI-EXPANDED(收录号:WOS:000542286900057)】；

基金：This research was funded by WALD-UND HOLZFORSCHUNGSFONDS of the Swiss Federal O ffice of the Environment and CSC SCHOLARSHIP under China Scholarship Council (CSC201803270019).

语种：英文

外文关键词：foliar functional traits; light; nutrients; drought; environmental change; evergreen conifers; deciduous broadleaves

摘要：(1) Understanding tree seedling responses to water, nutrient, and light availability is crucial to precisely predict potential shifts in composition and structure of forest communities under future climatic conditions. (2) We exposed seedlings of widespread Central European tree species with contrasting leaf habit, deciduous broadleaves (DB) and evergreen conifers (EC), to factorial combinations of manipulated precipitation (100% and 50% of ambient), shade (40% and 60% of full sunlight), and nutrient availability (low and high NPK), and measured specific leaf area, C/N ratio, soluble sugars, starch and non-structural carbohydrate concentration, and delta C-13 of the leaves. (3) We found contrasting effects of water and nutrient availability on foliar traits of the two species groups: EC exhibited higher tolerance to low resource availability but also less plasticity in foliar traits, which is congruent with a "slow" resource strategy. In contrast, foliage of DB reacted particularly to altered nutrient availability, corresponding to a "fast" resource strategy with high foliar plasticity and rapid adjustments to resource fluctuations, commonly adopted by species with high growth rates. (4) We conclude that DB will respond to environmental change with foliar acclimation, while EC will either tolerate, to some extent, or shift their distribution range in response to environmental change.