Changes in soil organic carbon in native forests of Argentina related to land use change and environmental factors DOI
Marcelo D. Nosetto,

Ezequiel Balducci,

Juan Gaitán

et al.

Soil Use and Management, Journal Year: 2024, Volume and Issue: 40(3)

Published: July 1, 2024

Abstract Native forests host important pools of soil organic carbon (SOC). This is a key element not only for ecosystem functioning but also the global cycle. Globally, and particularly in Argentina, native are being rapidly replaced by other land uses, raising questions about impact these transformations on SOC its environmental controls. Based construction largest database Argentina to date, we investigated patterns controls changes stocks associated with replacement uses. We constructed total 818 sites data (0–30 cm depth), covering main ecoregions, which added information (e.g. satellite data, climate database), study change after deforestation original content forests. Considering all ecoregions use alternatives together, found an average decrease stock 18.2 Mg C ha −1 , represents loss more than quarter forest sites. A boosted regression tree explained 89% variation indicated that initial post‐deforestation were most variables explaining this (relative influence 30.9% 18.2%, respectively). The rainfed annual crops resulted (−28 ), was twice as large observed rangelands (−14 ). On contrary, neither irrigated croplands nor plantations fast‐growing species caused ( p > .10). Climate texture had indirect effect through strong < .01). Our highlighted significant stocks, overshadowing relevant Understanding how pool responds change, conditions management practices essential increase effectiveness implemented improve properties mitigate change.

Language: Английский

Changes in soil organic carbon in native forests of Argentina related to land use change and environmental factors DOI
Marcelo D. Nosetto,

Ezequiel Balducci,

Juan Gaitán

et al.

Soil Use and Management, Journal Year: 2024, Volume and Issue: 40(3)

Published: July 1, 2024

Abstract Native forests host important pools of soil organic carbon (SOC). This is a key element not only for ecosystem functioning but also the global cycle. Globally, and particularly in Argentina, native are being rapidly replaced by other land uses, raising questions about impact these transformations on SOC its environmental controls. Based construction largest database Argentina to date, we investigated patterns controls changes stocks associated with replacement uses. We constructed total 818 sites data (0–30 cm depth), covering main ecoregions, which added information (e.g. satellite data, climate database), study change after deforestation original content forests. Considering all ecoregions use alternatives together, found an average decrease stock 18.2 Mg C ha −1 , represents loss more than quarter forest sites. A boosted regression tree explained 89% variation indicated that initial post‐deforestation were most variables explaining this (relative influence 30.9% 18.2%, respectively). The rainfed annual crops resulted (−28 ), was twice as large observed rangelands (−14 ). On contrary, neither irrigated croplands nor plantations fast‐growing species caused ( p > .10). Climate texture had indirect effect through strong < .01). Our highlighted significant stocks, overshadowing relevant Understanding how pool responds change, conditions management practices essential increase effectiveness implemented improve properties mitigate change.

Language: Английский

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