Permafrost response to temperature rise in carbon and nutrient cycling: Effects from habitat-specific conditions and factors of warming.

ABSTRACT: Permafrost is experiencing climate warming at a rate that is two times faster than the rest of the Earth's surface. However, it is still lack of a quantitative basis for predicting the functional stability of permafrost ecosystems in carbon (C) and nutrient cycling. We compiled the data of 708 observations from 89 air-warming experiments in the Northern Hemisphere and characterized the general effects of temperature increase on permafrost C exchange and balance, biomass production, microbial biomass, soil nutrients, and vegetation N dynamics through a meta-analysis. Also, an investigation was made on how responses might change with habitat-specific (e.g., plant functional groups and soil moisture status) conditions and warming variables (e.g., warming phases, levels, and timing). The net e

SUBMITTER: Gao W 

PROVIDER: S-EPMC8601908 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature