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There are more than 1,500 square kilometers of unmanaged agricultural land in Hawaii still suitable for agroforestry under current climate conditions. Photo: Pixabay Public DomainPixabay Public Domain

Hawaii relies on agroforestry to meet their 2045 climate goals

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A group of researchers quantified the potential of agroforestry systems on islands. The suitable area is large. Sequestration reaches 125 tons per hectare. A value similar to that of native forests
In the U.S., turfgrass, including domestic lawns, covers more than 160 thousand square kilometers and host an important biodiversity. Photo: rawpixel free public domain CC0 imagerawpixel free public domain CC0 image

Less intensive management of lawns promotes soil biodiversity

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A study shows how less intensive management of lawns, especially of those surrounding homes, allows to support many below-ground species that contribute to the balance of the ecosystem
Scientists have discovered light receptors that help plants conserve energy as they grow. In this way, even when casually covered with soil, the seedling can elongate further until it emerges from the soil again. Photo: roc&rm Attribution-NonCommercial-NoDerivs 2.0 Generic CC BY-NC-ND 2.0 Deedroc&rm Attribution-NonCommercial-NoDerivs 2.0 Generic CC BY-NC-ND 2.0 Deed

With the help of light we can improve plant growth

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An American study provides new information on how plants detect light and grow. The finding could help make more resilient crops
In the future, the large northern forests of Canada, Alaska, and Siberia may become denser with trees and more vulnerable to wildfires. Photo: Jasper Hunter Pexels free to usePhoto: Jasper Hunter Pexels free to use

More homogeneity and fires are coming for boreal forests

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Secondo uno studio della Wageningen University le foreste dell'emisfero settentrionale saranno sempre più simili tra loro a causa dei cambiamenti climatici. In questo modo aumenterà anche il rischio di incendi boschivi
A corn field in Cedar Falls, Iowa. Extending and diversifying crop rotations may not promote carbon sequestration but still provide important soil benefits. Photo: P. L. Tandon Attribution-NonCommercial-ShareAlike 2.0 Generic CC BY-NC-SA 2.0 DeedP. L. Tandon Attribution-NonCommercial-ShareAlike 2.0 Generic CC BY-NC-SA 2.0 Deed

Crop diversification supports nitrogen sequestration (but not carbon)

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Diversifying rotations does not promote carbon storage but increases nitrogen availability with positive impact on soil and climate, a Iowa University study has found
In the agricultural region of the U.S. Corn Belt, rainfall plays a key role in production and irrigation. Photo: Don Graham Attribution-ShareAlike 2.0 Generic CC BY-SA 2.0 DeedDon Graham Attribution-ShareAlike 2.0 Generic CC BY-SA 2.0 Deed

Agriculture and irrigation affect rainfall in the U.S. Midwest

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According to a study, the interaction between groundwater resources, crops and irrigation impacts the rate of rainfall recycling with a direct effect on agricultural management and water availability
In California's Central Valley, nitrogen contamination poses a significant risk. Photo: DJ Fogbound Attribution-NonCommercial-ShareAlike 2.0 Generic CC BY-NC-SA 2.0 DeedDJ Fogbound Attribution-NonCommercial-ShareAlike 2.0 Generic CC BY-NC-SA 2.0 Deed

Climate change and extreme events promote nitrogen contamination

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In California, the interaction between drought and subsequent rainfall promotes the dispersion of nitrogen that can reach surface waters, explains a U.S. study
In Michigan forests, the reduction of atmospheric nitrogen pollution increases microbial activity by reducing the amount of carbon stored. Photo: Ylevental Attribution-ShareAlike 4.0 International CC BY-SA 4.0 DeedYlevental Attribution-ShareAlike 4.0 International CC BY-SA 4.0 Deed

The nitrogen paradox: pollution control can reduce soil carbon sequestration

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A study highlights a possible side effect of combating air pollution: the reduction of carbon storage in the soil
Working at the Upper Newport Bay Ecological Reserve, researchers from the University of Southern California want to create a predictive method of carbon loss in coastal areas. Photo: Nandaro Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 DeedPhoto: Nandaro Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 Deed

Sea level rises threatening wetland carbon

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L'ascesa del livello del mare mette a rischio la capacità di stoccaggio del carbonio alterando la presenza dei microbi e la vegetazione, osservano i ricercatori americani
In drier rice fields the amount of arsenic is reduced but the amount of cadmium increases. Photo: pxhere CC0 Public Domain Free for personal and commercial use No attribution requiredpxhere CC0 Public Domain Free for personal and commercial use No attribution required

Irrigation of rice fields impacts on metal uptake

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A University of Delaware study highlights the impact of water supply in determining the concentration of arsenic and cadmium in rice plants. But the mechanism is complex and a solution is yet to be found

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