Ecohydrology in a Brazilian tropical dry forest: thinned vegetation impact on hydrological functions and ecosystem services

Andrade, Eunice Maia de; Guerreiro, Maria João; Palácio, Helba Araújo de Queiroz; Campos, Diego Antunes

doi:10.1016/j.ejrh.2019.100649

Cited by 30 publications

(25 citation statements)

References 36 publications

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“…The lowest concentration of TOC and TN in AG land use is due to (i) lower organic matter input (deforestation, biomass production, crop harvest, tillage); (ii) The high consumption of nitrogen by crops and prolonged farming that increase soil mineralization and organic matter requirement [7]. Results suggest that OC and PA are the most suitable land uses on Neosols with very low total organic carbon stock because of: (a) higher litter input is a carbon and nitrogen source; (b) lower herbaceous plants improve soil moisture [41]; (c) a vertical distribution of root system is developed [5]. The distribution of the root system directly influences the TOC and TN vertical distribution.…”

Section: Stocks Of Toc (Stktoc) and Tn (Stktn)mentioning

confidence: 99%

Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

et al. 2020

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Total organic carbon (TOC) and total nitrogen (TN) concentration in the soil are an indicator of soil degradation. To understand how land-use may impact these concentrations in seasonally dry tropical forests (SDTF), we analyzed the effect of four land-uses on TOC stocks (STK.TOC) and TN stocks (STK.TN) in a semi-arid region of Brazil. Soil samples were collected in 12 trenches (three sites × four land-uses—dense caatinga (DC), open caatinga (OC), pasture (PA) and agriculture (AG)), in the 0–10; 10–20 and 20–30 cm layers or as far as the bedrock. The data were compared by the Kruskal–Wallis test (p ≤ 0.05) and similarity investigated by cluster analysis. STK.TOC and STK.TN the surface layer (0–10 cm) showed no significant difference (p ≤ 0.05) between the DC; OC and PA land-uses. The similarity in STK.TOC and STK.TN values between DC, OC and PA, indicate that it is possible to explore SDTF to produce biomass and protein by adopting open caatinga and pasture land uses on Neosols with very low TOC stocks. The greatest reduction in STK.TOC and STK.TN in the agriculture land-use may lead to soil degradation and contribute to the addition of CO2 to the atmosphere.

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Section: Stocks Of Toc (Stktoc) and Tn (Stktn)mentioning

confidence: 99%

Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

et al. 2020

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“…This, in turn, supports agricultural systems upon which millions of subsistence farmers depend (Chidumayo and Gumbo 2010). In general, these myriad ES offered by TDFs can be categorized as provisioning (food, water, timber, biofuels, and fiber), regulating (air quality, water availability, carbon sequestration, nutrient cycling, and soil erosion regulation), supporting (maintenance of genetic diversity and habitat for species), and cultural (recreation, tourism) services (Chidumayo and Gumbo 2010;Ryan et al 2016;Andrade et al 2020).…”

Section: Tdfs For Livelihood Resiliencementioning

confidence: 99%

“…The resilience and continuous provision of ecosystem services of TDFs in the face of the changing climate can be improved by adopting best management practices-practices that help reduce soil erosion, increase soil moisture and carbon content, and biomass production. For instance, Andrade et al (2020) suggested that TDFs need to be thinned to improve the resilience of their ecosystem services to climate change as vegetation thinning promotes underbrush development which increases water retention and carbon storage of the soil, among others. Other various soil and water conservation techniques and vegetation management activities have been suggested to enhance TDF resilience to climate change.…”

Section: Managing Dry Forests Under a Changing Climatementioning

confidence: 99%

Tropical dry forest dynamics in the context of climate change: syntheses of drivers, gaps, and management perspectives

Siyum

2020

Ecol Process

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This review attempts to synthesize the available literature on tropical dry forests and their dynamics in the context of climate change and thereby identifies possible gaps and priority areas for further research and management endeavors. Tropical dry forests (TDFs) occur in dryland environments, which are characterized by prolonged periods of dry months. They experience distinct seasonality and high inter-annual variability in climatic variables, particularly rainfall. Despite the enormous ecological and livelihood importance of TDFs, these forests are highly threatened by global changes. So far, they have received far less attention from research and development interventions as compared to the humid tropical forests. Their significance is still overlooked in many countries' national policies. Current modeling frameworks show that drought, precipitation, and temperature are highlighted as strong drivers of tree growth and/or mortality in these forests. Well-valued and sustainably managed TDFs have the potential to contribute to climate change adaptation and mitigation, buffer against erosion and desertification, and contribute to economic development, food security, and poverty alleviation. TDFs suffer notable disregard from research and development strategies. Thus, greater awareness and appropriate policies and investments are needed at various levels to counteract the increasing vulnerability of people, forest ecosystems, and species living in these fragile ecosystems. Further research is also needed to generate knowledge on the status and significances of TDFs and their responses in the face of the changing climate so as to bring their sustainable management to the attention of policymakers and managers.

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“…Therefore, it may be useful to consider the relationship between hydrometeorology factors (air temperature, precipitation, river discharge) and changes in land cover from the natural factors that influence the ecohydrological process. On one hand, it can be an effective basis for identifying direct and indirect ecological impacts of ecohydrological processes on plants, animals, soil cover, and public health [13,14].…”

Section: Introductionmentioning

confidence: 99%

Study on Relationship of Land Cover Changes and Ecohydrological Processes of the Tuul River Basin

et al. 2021

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The Tuul River Basin is the most important socioeconomic and political base area of Mongolia. Therefore, studying the interrelationships between changes in the ecohydrological processes of this basin and its land cover is of great importance for maintaining sustainability and the environment. This study investigated the annual average air temperature, total annual precipitation, and river discharge variability, and land cover changes at selected stations of the basin by using the hydrometeorological analysis, satellite analysis, and land cover determination statistical analysis. During the study period, the average annual air temperature rose from −1.5 °C to +0.3 °C (1.8 °C 361 °C). The average annual precipitation exhibits relatively low change during this period. River discharge varied during the study period. A significant decreasing trend in river discharge was observed at the Terelj (φ = −2.72) and Ulaanbaatar (φ = −5.63) stations, whereas the other stations, Altanbulag, Lun, and Orkhontuul, showed a significant increasing trend. During the study period, changes in land cover were directly related to main hydrometeorological parameters. Between 2000 and 2020, the amount of grassland decreased by 319.67 km2, while the area of water bodies increased by 28.36 km2. In the study area, mainly water bodies and sensitive areas of the land cover types were changed due to changes in precipitation. Studies in the arid and semiarid regions of Central Asia show that changes of ecohydrological processes have a significant impact on land cover changes.

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Ecohydrology in a Brazilian tropical dry forest: thinned vegetation impact on hydrological functions and ecosystem services

Cited by 30 publications

References 36 publications

Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

Tropical dry forest dynamics in the context of climate change: syntheses of drivers, gaps, and management perspectives

Study on Relationship of Land Cover Changes and Ecohydrological Processes of the Tuul River Basin

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