Implications of long-term land-use change for the hydrology and solute budgets of small catchments in Amazonia

Germer, Sonja; Neill, Christopher; Vetter, Tobias; Chaves, Joaquín; Krusche, Alex V.; Elsenbeer, Helmut

doi:10.1016/j.jhydrol.2008.11.013

Cited by 103 publications

(100 citation statements)

References 36 publications

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“…Pasture represents one of the main land covers affecting the potassium concentration at Turvo, Aguapeí and Piracicaba Rivers in the state of São Paulo, with percentages varying from 44% to 70% in Piracicaba and Aguapeí, respectively , Salomão et al 2008). This vegetation cover decrease the soil permeability, increasing the ion fluxes to streams (Germer et al 2009) and this seems to be the case of undisturbed streams 1, 2 and 3 and disturbed stream 7 where pasture represents 75% of the watershed.…”

Section: Streamwater Chemistrymentioning

confidence: 97%

“…Several studies in tropical watersheds evaluated the impact of urbanization and agricultural practices on water quality (Ballester et al 1999, Neill et al 2001, Biggs et al 2004, Salomão et al 2008, Germer et al 2009, Andrade et al 2011. Studies in subcatchments in southeastern and southern Brazil have shown that small streams are severely affected by urbanization and agricultural practices such as pastures, considerably increasing dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) (Daniel et al 2002 in addition to several ions such as nitrate, chloride and ammonium , Germer et al 2009, Andrade et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…Studies in subcatchments in southeastern and southern Brazil have shown that small streams are severely affected by urbanization and agricultural practices such as pastures, considerably increasing dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) (Daniel et al 2002 in addition to several ions such as nitrate, chloride and ammonium , Germer et al 2009, Andrade et al 2011. As a result, the structure of biota communities is affected by these activities, decreasing some species while urbanization increases (Ometto et al 2000, Ramirez et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil

Silva

Camargo

McDowell

et al. 2012

An. Acad. Bras. Ciênc.

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Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca ) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna -cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Paranapanema watershed (streams 1, 2 and 3) seem to be regulated by soil characteristics, as the disturbed streams located at the same watershed covered by pasture (stream 7) showed high concentration for the most of the variables. Exception to streams located at Pontal do Paranapanema watershed where both disturbed (stream 8) and undisturbed streams (stream 4 and 5) presented similar patterns for almost all variables measured.

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Section: Streamwater Chemistrymentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil

Silva

Camargo

McDowell

et al. 2012

An. Acad. Bras. Ciênc.

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“…The total collecting area per collector was 980 cm 2 (7 Ã 140 cm). Throughfall was collected with 20 collectors distributed randomly, but under the constraint of avoiding disturbances in the heavily instrumented 1.37 ha catchment (Germer et al, 2009). The collectors were cleaned of organic deposits after each event.…”

Section: Field Measurementsmentioning

confidence: 99%

Disproportionate single-species contribution to canopy-soil nutrient flux in an Amazonian rainforest

Germer

Zimmermann

Neill

et al. 2012

Forest Ecology and Management

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“…For example, the paired-watershed method is commonly used for small watersheds to detect hydrological differences among similar basins with different land uses [18,19]. Another widely used method is time series analysis, which is a statistical method that requires a long-term data base, which is often not available in non-developed countries [20].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Kavian

Mohammadi

Gholami

et al. 2018

Water

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This research surveyed the effects of land use changes on flow nitrate pollution in the Talar River (northern Iran), using Landsat images of 1991 and 2013 and the Soil and Water Assessment Tool (SWAT). The results indicated that forest areas decreased by 14.9% and irrigated crops, dry land farming areas, range lands and residential areas increased by 46.8%, 31.1%, 4.7% and 17.5%, respectively. To calibrate and validate the studied period, the Nash Sutcliffe model efficiency (NSE) and coefficient of determination (R 2 ) were applied, ranging from 0.57 to 0.75 and from 0.62 to 0.76 for flow simulation and 0.84 and 0.63 and 0.75 and 0.83 for nitrate simulation, respectively. The results of land use scenarios indicated that respective water flow and nitrate loads increased by 34. 4% and 42.2% in 1991-2013 and may even increase by 42.3% and 55.9% in the simulated period of 2013-2050 in all sub-basins. It is likely that the main reason for these results was due to the increase in agricultural activities and the decrease in forestry areas. Our findings showed the useful combination of modelling techniques (land cover changes and SWAT) to develop valuable maps able to design correct land management plans and nature-based solutions for water quality of runoff water harvesting systems in the future.

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Implications of long-term land-use change for the hydrology and solute budgets of small catchments in Amazonia

Cited by 103 publications

References 36 publications

Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil

Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil

Disproportionate single-species contribution to canopy-soil nutrient flux in an Amazonian rainforest

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

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