Global patterns of soil autotrophic respiration and its relation …
2020年6月15日 · Soil autotrophic respiration (RA), a central component of total soil respiration (RS), represents the carbon (C) flux that originates from plant roots, mycorrhizae, and other micro-organisms in the rhizosphere directly depending on labile C substrates leaked from roots (Hanson et al., 2000, Tang et al., 2016a, Wang and Yang, 2007).
Ecosystem respiration - Wikipedia
Cellular respiration is the overall relationship between autotrophs and heterotrophs. Autotrophs are organisms that produce their own food through the process of photosynthesis, whereas heterotrophs are organisms that cannot prepare their own …
Differential responses of heterotrophic and autotrophic respiration to ...
2018年11月8日 · Rs is composed of autotrophic respiration (Ra), which is related to roots, mycorrhizae and other rhizospheric microorganisms, and heterotrophic respiration (Rh) from non-rhizospheric...
Soil autotrophic-to-heterotrophic-respiration ratio and its …
2024年7月1日 · Based on the newest Global Soil Respiration Database, we conducted a systematic analysis of Ra / Rh in a global assessment of 404 independent studies, considering both direct and indirect effects of climatic, edaphic and vegetation features on Ra / Rh.
Ecosystem-level controls on root-rhizosphere respiration
2013年4月17日 · Autotrophic respiration consists of growth respiration (RG) and maintenance respiration (RM), which are derived from new photosynthate and plant carbon (C) storage pools. Heterotrophic respiration consists of respiration from litter decomposition (RL) and soil organic matter decomposition (RS).
Global Change Biology | Environmental Change Journal - Wiley …
2004年9月16日 · Soil surface CO 2 flux (RS) is overwhelmingly the product of respiration by roots (autotrophic respiration, RA) and soil organisms (heterotrophic respiration, RH). Many studies have attempted to partition RS into these two components, with highly variable results.
Separating autotrophic and heterotrophic components of soil respiration ...
Autotrophic respiration involves root carbohydrates and root exudates that have very low residence time in soil, while the heterotrophic component involves carbon compounds with a longer residence time, ranging from months to years for fresh litter and from years to centuries for old soil organic matter.
Understanding Autotrophic and Heterotrophic Respiration in …
2024年6月16日 · Autotrophic respiration is the process by which plants convert the carbohydrates produced during photosynthesis into energy. This energy is used for growth, maintenance, and reproduction. There are three main types of autotrophic respiration:
Constrained partitioning of autotrophic and heterotrophic respiration …
2016年8月15日 · R s is primarily the combination of two sources: autotrophic respiration (R a), which is the CO 2 produced from plant root metabolism and associated microbial respiration, and heterotrophic respiration (R h), which is CO 2 from free-living microbial decomposition of soil organic matter (SOM).
Carbon allocation and tree diversity: shifts in autotrophic respiration ...
2022年6月13日 · Forest ecosystem respiration can be divided into autotrophic and heterotrophic respiration. Autotrophic respiration is respiration by all organisms in a forest able to assimilate carbon in the process of photosynthesis, whereas heterotrophic respiration is by organisms not able to do photosynthesis.