Desertification, land degradation and drought

Slow onset processes have been increasingly linked to human mobility in the global policy space. Yet, land and forest degradation and desertification (LFDD) as a driver of human displacement and its implications for long-term development policy have received less attention. This paper aims to fill this gap by investigating to what extent the topic has been integrated into the national climate and desertification policy frameworks of countries in Latin American and the Caribbean – a region threatened by significant LFDD.
Elsevier, Current Opinion in Environmental Sustainability, Volume 50, June 2021
The Amazon is the most concentrated expression of life on Earth and it is clearly threatened.
Elsevier, Current Opinion in Environmental Sustainability, Volume 50, June 2021
Droughts are significant drivers of land degradation, which in turn has adverse effects on resource-dependent rural populations and can potentially lead to livelihood losses and subsequent migration out of affected areas. Linkages between land degradation and migration are complex and not particularly well documented, as they occur within a larger context of multi-scale interactions of socio-economic, political, demographic, and environmental processes. Given these uncertainties, further research in this field is needed.
Many studies have assessed the concept of geodiversity. Most studies have focused on large spatial scales, ranging from watersheds to landscapes. Recent studies from the Israeli drylands indicate that shrubs and trees growing in low-geodiversity sites experience mass mortality following long-term droughts, whilst those in high-geodiversity sites demonstrate high durability. Our objective was to review the relevance of small-scale geodiversity to the slow onset effects of climate change defined by the UN-FCCC, including land and forest degradation, biodiversity loss, and desertification.
Elsevier, Current Opinion in Environmental Sustainability, Volume 50, June 2021
The processes of salinisation and alkalinisation of soil that caused the formation of different types of saline (halomorphic) soils are characteristic of the northern part of Serbia — the area of Vojvodina. These soils are characterized by poor physical and chemical properties due to a high content of salt and/or adsorbed Na+ ions because of which are being used to a limited extent in agricultural production, and more as pastures.
Elsevier, Current Opinion in Environmental Sustainability, Volume 50, June 2021
Climate change has affected diverse spheres and its impact is being witnessed worldwide. Soil, the basis of human sustenance, is both directly and indirectly affected by climate change. Soil erosion, vegetation degradation and soil salinisation are becoming prevalent, causing a threat to future food security. Saline soils are found mainly in North and Central Asia, Africa and South America. Various factors such as excess irrigation and poor drainage, groundwater salinity, sea level rise and intrusion, irregular rainfall contribute to the process of soil salinisation.
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Mangrove-dominated estuaries host a diverse microbial assemblage that facilitates nutrient and carbon conversions and could play a vital role in maintaining ecosystem health. In this study, we used 16S rRNA gene analysis, metabolic inference, nutrient concentrations, and δ13C and δ15N isotopes to evaluate the impact of land use change on near-shore biogeochemical cycles and microbial community structures within mangrove-dominated estuaries.
Translations: For the Chinese, French, German, and Spanish translations of the abstract see Supplementary Materials section.

30th November 2020

World Soil Day (WSD) is held annually on 5 December as a means to focus attention on the importance of healthy soil and to advocate for the sustainable management of soil resources for a food-secure future. In support of this year's theme - 'Keep soil alive, protect soil biodiversity' - Elsevier presents a curated, open access collection of over 60 journal articles to raise awareness of the importance of maintaining healthy soil ecosystems.