NHESS - The impact of drought on soil moisture trends across
By A Mystery Man Writer
Description
Abstract. Over the past decade, Brazil has experienced severe droughts across its territory, with important implications for soil moisture dynamics. Soil moisture variability has a direct impact on agriculture, water security and ecosystem services. Nevertheless, there is currently little information on how soil moisture across different biomes responds to drought. In this study, we used satellite soil moisture data from the European Space Agency, from 2009 to 2015, to analyze differences in soil moisture responses to drought for each biome of Brazil: , Atlantic Forest, Caatinga, Cerrado, Pampa and Pantanal. We found an overall soil moisture decline of −0.5 % yr−1 (p<0.01) at the national level. At the biome level, Caatinga presented the most severe soil moisture decline (−4.4 % yr−1), whereas the Atlantic Forest and Cerrado biomes showed no significant trend. The biome showed no trend but had a sharp reduction of soil moisture from 2013 to 2015. In contrast, the Pampa and Pantanal biomes presented a positive trend (1.6 % yr−1 and 4.3 % yr−1, respectively). These trends are consistent with vegetation productivity trends across each biome. This information provides insights into drought risk reduction and soil conservation activities to minimize the impact of drought in the most vulnerable biomes. Furthermore, improving our understanding of soil moisture trends during periods of drought is crucial to enhance the national drought early warning system and develop customized strategies for adaptation to climate change in each biome.
![NHESS - The impact of drought on soil moisture trends across](https://www.researchgate.net/publication/344500979/figure/fig3/AS:1146031014199305@1650246494486/Relationship-between-drought-intensity-and-growth-of-ponderosa-pine-in-a-long-term.png)
Relationship between drought intensity and growth of ponderosa
![NHESS - The impact of drought on soil moisture trends across](https://ars.els-cdn.com/content/image/1-s2.0-S0048969722080858-gr7.jpg)
Continued decline of global soil moisture content, with obvious
![NHESS - The impact of drought on soil moisture trends across](https://media.springernature.com/m685/springer-static/image/art%3A10.1007%2Fs00382-022-06373-3/MediaObjects/382_2022_6373_Fig3_HTML.png)
Large increases of multi-year droughts in north-western Europe in
![NHESS - The impact of drought on soil moisture trends across](https://cordis.europa.eu/docs/results/images/2020-06/418282.jpg)
Impact of soil moisture on climate change projections
![NHESS - The impact of drought on soil moisture trends across](https://nhess.copernicus.org/articles/21/879/2021/nhess-21-879-2021-f06-web.png)
NHESS - The impact of drought on soil moisture trends across
![NHESS - The impact of drought on soil moisture trends across](https://ars.els-cdn.com/content/image/1-s2.0-S0034425721005538-ga1.jpg)
Soil moisture as an essential component for delineating and
![NHESS - The impact of drought on soil moisture trends across](https://climate.esa.int/media/images/v8.1_COMBINEDAnomaliesYear2022.max-800x600-w.max-800x800.png)
Soil Moisture project
![NHESS - The impact of drought on soil moisture trends across](https://nhess.copernicus.org/articles/22/323/2022/nhess-22-323-2022-f01-web.png)
NHESS - A geography of drought indices: mismatch between
![NHESS - The impact of drought on soil moisture trends across](https://www.researchgate.net/publication/325931394/figure/fig3/AS:640368269852673@1529687101800/Relation-between-the-area-under-drought-and-drought-severity-for-precipitation-left.png)
Relation between the area under drought and drought severity for
![NHESS - The impact of drought on soil moisture trends across](https://ars.els-cdn.com/content/image/1-s2.0-S0048969721075422-gr7.jpg)
Using soil-moisture drought indices to evaluate key indicators of
![NHESS - The impact of drought on soil moisture trends across](https://nhess.copernicus.org/articles/21/879/2021/nhess-21-879-2021-f01.jpg)
NHESS - The impact of drought on soil moisture trends across
![NHESS - The impact of drought on soil moisture trends across](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-023-38002-2/MediaObjects/41598_2023_38002_Fig1_HTML.png)
Cascading effects of drought in Xilin Gol temperate grassland
![NHESS - The impact of drought on soil moisture trends across](https://nhess.copernicus.org/articles/24/999/2024/nhess-24-999-2024-avatar-web.png)
NHESS - A new approach for drought index adjustment to clay
![NHESS - The impact of drought on soil moisture trends across](https://www.researchgate.net/publication/361755742/figure/fig1/AS:11431281079713315@1660822657230/Example-monthly-soil-moisture-profiles-and-drying-and-wetting-dates-for-locations-across.jpg)
Example monthly soil moisture profiles and drying and wetting
![NHESS - The impact of drought on soil moisture trends across](https://www.frontiersin.org/files/Articles/1045451/frwa-04-1045451-HTML/image_m/frwa-04-1045451-g001.jpg)
Frontiers Microwave remote sensing for agricultural drought
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