Soil Respiration, Litter Fall and Productivity of Tropical Rain Forest

1970 ◽  
Vol 58 (2) ◽  
pp. 543 ◽  
Author(s):  
Hans Wanner
Keyword(s):  
Soil Respiration ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Litter Fall

Spatial variation of soil respiration across a topographic gradient in a tropical rain forest in French Guiana

2006 ◽  
Vol 22 (5) ◽  
pp. 565-574 ◽  
Author(s):  
Daniel Epron ◽  
Alexandre Bosc ◽  
Damien Bonal ◽  
Vincent Freycon
Keyword(s):  
Soil Respiration ◽  
Spatial Variation ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Root Biomass ◽  
French Guiana ◽  
Field Experiments ◽  
Mechanistic Models ◽  
Soil Carbon Content ◽  
Lateral Drainage

The objective of this study was to analyse the factors explaining spatial variation in soil respiration over topographic transects in a tropical rain forest of French Guiana. The soil of 30 plots along six transects was characterized. The appearance of the ‘dry to the touch’ character at a depth of less than 1.2 m was used to discriminate soils exhibiting vertical drainage from soils exhibiting superficial lateral drainage and along with colour and texture, to define five classes from well-drained to strongly hydromorphic soils. Spatial variation in soil respiration was closely related to topographic position and soil type. Increasing soil water content and bulk density and decreasing root biomass and soil carbon content explained most of the decrease in soil respiration from the plateaux (vertically drained hypoferralic acrisol) to the bottomlands (haplic gleysol). These results will help to stratify further field experiments and to identify the underlying determinants of spatial variation in soil respiration to develop mechanistic models of soil respiration.

The Effects of a Tropical rain Forest Cover on Airborne Gamma-Ray Spectrometry

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Enio B. Pereira ◽  
Daniel J.R. Nordemann
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Cover ◽  
Gamma Ray ◽  
Gamma Ray Spectrometry

Para solicitação de resumo, entrar em contato com editor-chefe ([email protected]). 

scholarly journals (5d RG-flow) trees in the tropical rain forest

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Marieke van Beest ◽  
Antoine Bourget ◽  
Julius Eckhard ◽  
Sakura Schäfer-Nameki
Keyword(s):  
Large Class ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Field Theories ◽  
Flavor Symmetry ◽  
Superconformal Field Theories ◽  
Hasse Diagrams ◽  
Flavor Symmetries ◽  
Rank 2 ◽  
Mass Deformation

Abstract 5d superconformal field theories (SCFTs) can be obtained from 6d SCFTs by circle compactification and mass deformation. Successive decoupling of hypermultiplet matter and RG-flow generates a decoupling tree of descendant 5d SCFTs. In this paper we determine the magnetic quivers and Hasse diagrams, that encode the Higgs branches of 5d SCFTs, for entire decoupling trees. Central to this undertaking is the approach in [1], which, starting from the generalized toric polygons (GTPs) dual to 5-brane webs/tropical curves, provides a systematic and succinct derivation of magnetic quivers and their Hasse diagrams. The decoupling in the GTP description is straightforward, and generalizes the standard flop transitions of curves in toric polygons. We apply this approach to a large class of 5d KK-theories, and compute the Higgs branches for their descendants. In particular we determine the decoupling tree for all rank 2 5d SCFTs. For each tree, we also identify the flavor symmetry algebras from the magnetic quivers, including non-simply-laced flavor symmetries.

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