Water release through plant roots: new insights into its consequences at the plant and ecosystem level.
TLDR
This review examines the main biophysical and environmental factors controlling HR and its main implications at the plant, community and ecosystem levels, affecting net primary productivity as well as water and vegetation dynamics.Abstract:
Summary Hydraulic redistribution (HR) is the passive movement of water between different soil parts via plant root systems, driven by water potential gradients in the soil–plant interface. New data suggest that HR is a heterogeneous and patchy process. In this review we examine the main biophysical and environmental factors controlling HR and its main implications at the plant, community and ecosystem levels. Experimental evidence and the use of novel modelling approaches suggest that HR may have important implications at the community scale, affecting net primary productivity as well as water and vegetation dynamics. Globally, HR may influence hydrological and biogeochemical cycles and, ultimately, climate.read more
Citations
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Improving intercropping: a synthesis of research in agronomy, plant physiology and ecology.
Rob W. Brooker,Alison E. Bennett,Wen-Feng Cong,Tim J. Daniell,Timothy S. George,Paul D. Hallett,Paul D. Hallett,Cathy Hawes,Pietro P. M. Iannetta,Hamlyn G. Jones,Hamlyn G. Jones,Alison J. Karley,Long Li,Blair M. McKenzie,Robin J. Pakeman,Eric Paterson,Christian Schöb,Jianbo Shen,Geoff R. Squire,Christine A. Watson,Chaochun Zhang,Fusuo Zhang,Junling Zhang,Philip J. White +23 more
TL;DR: It is suggested that other topics also need addressing, including better assessment of the wider benefits of intercropping in terms of multiple ecosystem services, collaboration with agricultural engineering, and more effective interdisciplinary research.
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Trees, forests and water : Cool insights for a hot world
David Ellison,Cindy E. Morris,Cindy E. Morris,Bruno Locatelli,Douglas Sheil,Jane Maslow Cohen,Daniel Murdiyarso,Daniel Murdiyarso,Victoria Gutierrez,Meine van Noordwijk,Meine van Noordwijk,Irena F. Creed,Jan Pokorny,David L. A. Gaveau,Dominick V. Spracklen,Aida Bargués Tobella,Ulrik Ilstedt,Adriaan J. Teuling,Solomon Gebreyohannis Gebrehiwot,Solomon Gebreyohannis Gebrehiwot,David Sands,Bart Muys,Bruno Verbist,Elaine Springgay,Yulia Sugandi,Caroline A Sullivan +25 more
TL;DR: In this article, a call to action targets a reversal of paradigms, from a carbon-centric model to one that treats the hydrologic and climate cooling effects of trees and forests as the first order of priority.
Journal ArticleDOI
How tree roots respond to drought
TL;DR: Current knowledge about responses of tree roots to drought supports the view that tree roots are well equipped to withstand drought situations and maintain morphological and physiological functions as long as possible.
Journal ArticleDOI
A Review of Processes Behind Diversity—Productivity Relationships in Forests
David I. Forrester,Jürgen Bauhus +1 more
TL;DR: This review indicates that while the effects of tree-species diversity on growth and other forest functions are now receiving a lot of attention, far less is known about the effects on growth or forest functioning and direct measurements of the processes could greatly contribute to the understanding of structural diversity effects.
Journal ArticleDOI
Expanding the role of reactive transport models in critical zone processes
Li Li,Kate Maher,Alexis Navarre-Sitchler,Jennifer L. Druhan,Christof Meile,Corey R. Lawrence,Joel Moore,Julia Perdrial,Pamela L. Sullivan,Aaron Thompson,Lixin Jin,Edward W. Bolton,Susan L. Brantley,William E. Dietrich,K. Ulrich Mayer,Carl I. Steefel,Albert J. Valocchi,John M. Zachara,Benjamin D. Kocar,Jennifer C. McIntosh,Benjamin M. Tutolo,Mukesh Kumar,Eric Sonnenthal,Chen Bao,Joe Beisman +24 more
TL;DR: A review of multi-component Reactive Transport Models (RTMs) can be found in this article, where the authors present seven testable hypotheses that emphasize the unique capabilities of process-based RTMs for elucidating chemical weathering and its physical and biogeochemical drivers; understanding the interactions among roots, micro-organisms, carbon, water, and minerals in the rhizosphere; assessing the effects of heterogeneity across spatial and temporal scales; and integrating the vast quantity of novel data (genomics, transcriptomics, proteomics, metabolomics), elemental concentration and speciation
References
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