Results 261 to 270 of about 97,920 (309)
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2015
Understanding ecosystem structure and function requires familiarity with the techniques, knowledge and concepts of the three disciplines of plant physiology, remote sensing and modelling. This is the first textbook to provide the fundamentals of these three domains in a single volume. It then applies cross-disciplinary insights to multiple case studies
Derek Eamus, Alfredo Huete, Qiang Yu
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Understanding ecosystem structure and function requires familiarity with the techniques, knowledge and concepts of the three disciplines of plant physiology, remote sensing and modelling. This is the first textbook to provide the fundamentals of these three domains in a single volume. It then applies cross-disciplinary insights to multiple case studies
Derek Eamus, Alfredo Huete, Qiang Yu
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Long-Term Studies of Vegetation Dynamics
Science, 2001By integrating a wide range of experimental, comparative, and theoretical approaches, ecologists are starting to gain a detailed understanding of the long-term dynamics of vegetation. We explore how patterns of variation in demographic traits among species have provided insight into the processes that structure plant communities.
Rees, Mark +4 more
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Feedbacks and landscape-level vegetation dynamics
Trends in Ecology & Evolution, 2015Alternative stable-state theory (ASS) is widely accepted as explaining landscape-level vegetation dynamics, such as switches between forest and grassland. This theory argues that webs of feedbacks stabilise vegetation composition and structure, and that abrupt state shifts can occur if stabilising feedbacks are weakened.
David M J S, Bowman +2 more
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2015
In a broad sense, all rivers develop from rills and gullies in the process of erosion. Erosion is classified according to agents causing erosion into water erosion, wind erosion, gravity erosion, glacier erosion and cultural erosion. Water erosion occurs in different forms: splash erosion, sheet erosion, rill erosion, gully erosion and channel erosion.
Zhao-Yin Wang +2 more
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In a broad sense, all rivers develop from rills and gullies in the process of erosion. Erosion is classified according to agents causing erosion into water erosion, wind erosion, gravity erosion, glacier erosion and cultural erosion. Water erosion occurs in different forms: splash erosion, sheet erosion, rill erosion, gully erosion and channel erosion.
Zhao-Yin Wang +2 more
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2020
<p>The Amazon rainforest is among the most vital ecosystems on earth, holding about a quarter of the global terrestrial carbon sink. Since 2005, three 100-year return period droughts have occurred, the likes of which have the potential to turn the forest from a carbon sink to a carbon source. Monitoring the Amazon is essential to
Ashwini Petchiappan +4 more
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<p>The Amazon rainforest is among the most vital ecosystems on earth, holding about a quarter of the global terrestrial carbon sink. Since 2005, three 100-year return period droughts have occurred, the likes of which have the potential to turn the forest from a carbon sink to a carbon source. Monitoring the Amazon is essential to
Ashwini Petchiappan +4 more
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The Vegetation Index and the Study of Vegetation Dynamics
1989The presentation reviews the basic principles supporting the derivation and analysis of vegetation indices from spectral data. The relationships between the normalized difference vegetation index and the vegetation characteristics is discussed, with emphasis upon dynamic processes important in biomass accumulation. Since time-series of vegetation index
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2015
Contributors vii Preface ix Acknowledgments xi Part I: General Description of the Model MC1 1 History and General Description of the Dynamic Global Vegetation Model MC1 Dominique Bachelet 3 2 Historical Climate and Suppression Effects on Simulated Fire and Carbon Dynamics in the Conterminous United States James M Lenihan and Dominique Bachelet 17 3 ...
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Contributors vii Preface ix Acknowledgments xi Part I: General Description of the Model MC1 1 History and General Description of the Dynamic Global Vegetation Model MC1 Dominique Bachelet 3 2 Historical Climate and Suppression Effects on Simulated Fire and Carbon Dynamics in the Conterminous United States James M Lenihan and Dominique Bachelet 17 3 ...
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On the dynamics of vegetation: Patterns of environmental and vegetational change
Vegetatio, 1978Ecological succession theory deals with temporal change in biological communities. It consists largely of generalizations based on temporal sequences inferred from spatial ones. The predictive content of the theory is low, since predictions are derived from unconditional trends rather than conditional laws.
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Vegetation dynamics induced by phreatophyte–aquifer interactions
Journal of Theoretical Biology, 2007The dynamics of phreatophyte vegetation are strongly coupled to those of the shallow phreatic aquifers from which phreatophytes extract water. Vegetation is able to influence the depth of the water table, which, in turn, can induce stress in vegetation.
RIDOLFI, LUCA +2 more
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Vegetation dynamics or ecosystem dynamics: Dynamic sufficiency in succession theory
Vegetatio, 1980Recently several authors have claimed that long term vegetation change, at least in the case of forest ecosystems, can usefully and quite accurately be described by stationary Markov chain models (Anderson, 1966; Waggoner & Stephens, 1970; Horn, 1974, 1975a, 1975b, 1976) or their deterministic counterpart, coupled differential equation models (Shugart ...
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