Biomass (ecology) - Wikipedia
Biomass is the mass of living biological organisms in a given area or ecosystem at a given time. Biomass can refer to species biomass, which is the mass of one or more species, or to community biomass, which is the mass of all species in the community.
Biomass | Definition, Types, & Facts | Britannica
2024年12月3日 · Biomass, the weight or total quantity of living organisms of a species (species biomass) or of all the species in a community (community biomass), commonly referred to a unit area or volume of habitat. It is also the total amount of organic material produced by living things in a given area within a set period of time.
Drivers of biomass stocks and productivity of tropical secondary ...
2024年12月4日 · Total biomass was positively affected by all forest attributes (tree density, rarefied richness, CWM LNC) and two environmental conditions (climatic wetness and soil P) (Figure 2a,c). Total biomass productivity was mostly driven by forest attributes and increased with stand basal area and decreased with species richness and CWM WD (Figure 2b,d).
Biomass - Encyclopedia.com
2018年5月23日 · Biomass is the total mass of biological material, both living and recently dead, in a defined area. In an ecological context, biomass often refers to the amount of biological material in different parts of an ecological pyramid or in different ecological communities.
1: Biodiversity, living matter and biomass - Geosciences LibreTexts
The quantification of the biomass of living organisms on Earth presented here – broken down by major taxonomic groups, ecological strategies and global environments – provides a basis for exploring today’s major environmental issues.
Distribution of biomass on the planet - Encyclopedia of the …
2022年10月31日 · This study confirms a well-known observation in ecology: in oceans, the biomass of consumers far exceeds that of producers (≈5 Gt C versus ≈1 Gt C). Conversely, on land, the biomass of primary producers is much larger than that of primary and secondary consumers (Figure 9).
The biomass distribution on Earth - PNAS
2018年5月21日 · We assemble a census of the biomass of all kingdoms of life. This analysis provides a holistic view of the composition of the biosphere and allows us to observe broad patterns over taxonomic categories, geographic locations, and trophic modes. A census of the biomass on Earth is key for understanding the structure and dynamics of the biosphere.
The global distribution and environmental drivers of ... - Nature
2021年6月24日 · Nature Ecology & Evolution - The fraction of plant biomass in aboveground versus root tissues has implications for carbon storage and dynamics. Here the authors collate a dataset on root-mass...
Changes in global terrestrial live biomass over the 21st century
We show that live biomass has removed 4.9 to 5.5 PgC year −1 from the atmosphere, offsetting 4.6 ± 0.1 PgC year −1 of gross emissions from disturbances and adding substantially (0.23 to 0.88 PgC year −1) to the global carbon stocks. Gross emissions and removals in the tropics were four times larger than temperate and boreal ecosystems combined.
Decoupled responses of plants and soil biota to global change …
2024年11月29日 · Positive correlations between aboveground plant biomass and microbial biomass were observed under elevated precipitation 28, while this relationship disappeared under drought 29. These varied ...
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