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C&aacute;rate Tandalla, D.; Homeier, J. &amp; Bat&aacute;ry, P. (2024): <b>Responses of tropical tree seedlings to nutrient addition: A meta-analysis to understand future changes in tropical forest dynamics</b>. <i>Current Forestry Reports</i> <b>11</b>, 3.

Resource Description

Title: Responses of tropical tree seedlings to nutrient addition: A meta-analysis to understand future changes in tropical forest dynamics
FOR816dw ID: 2044
Publication Date: 2024-12-18
License and Usage Rights:
Resource Owner(s):
Individual: Daisy Cárate Tandalla
Contact:
Individual: Jürgen Homeier
Contact:
Individual: Péter Batáry
Contact:
Abstract:
Purpose of the Review The escalating impacts of human activities and climate change, particularly increased nutrient leaching<br/> and deposition, could significantly alter the productivity, structure, and function of tropical vegetation. To better understand<br/> how nutrient deposition affects regeneration in tropical ecosystems, we synthesised studies that added N, P, NP, or NPK to<br/> the seedlings of tropical tree and shrub species.<br/> Recent Findings In the tropics, nutrient limitation leads to multiple resource constraints. Our systematic review and hierarchical<br/> meta-analyses aimed to: (1) test the effect of nutrient addition on the growth rate and biomass allocation of seedlings<br/> of tropical species; (2) examine seedling responses across climate-defined groups; (3) quantify the effects of experimental<br/> methods and wood density on species’ responses to experimental fertilisation.<br/> Summary Overall, nutrient addition increased seedling shoot biomass by 26% and growth rates by 14%. Pot and transplantation<br/> experiments demonstrated stronger positive effects than in-situ observational studies. Nutrient combinations yielded the<br/> highest growth rates (NPK: 27%, and NP: 18%), and N was critical for shoot biomass (N: 38%, and NP: 48%). The responses<br/> of shoot biomass indicated co-limitation of N and P, but also high variability in seedling responses to individual nutrients.<br/> Temperature and precipitation had indirect regulating effects, while seasonality showed the strongest impact in seasonally<br/> dry sites (38% growth rate and 70% shoot biomass). Species showed individual responses to nutrients, influenced by biotic<br/> and abiotic interactions. Finally, we suggest tracking additional parameters, like forest successional status, that may intensify<br/> nutrient deposition effects on tropical soils due to climate change.
Keywords:
| tropical tree seedlings | Nutrient deposition | Climate change | nutrient co-limitation |
Literature type specific fields:
ARTICLE
Journal: Current Forestry Reports
Volume: 11
Page Range: 3
Metadata Provider:
Individual: Jürgen Homeier
Contact:
Online Distribution:
Download File: http://www.tropicalmountainforest.org/publications.do?citid=2044


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