Historical Land-Use Changes in São Gabriel do Oeste at the Upper Taquari River Basin

Buller, Luz Selene; Bayma-Silva, Gustavo; Zanetti, Marilia Ribeiro; Ortega, Enrique; Moraes, Aníbal de; Goulart, Thiago; Bergier, Ivan

doi:10.1007/698_2015_355

Cited by 4 publications

(6 citation statements)

References 14 publications

(15 reference statements)

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“…Moreover, it shows that avulsive processes are commonplace in Pantanal, and changes in land use, particularly in river headwaters in the highlands [44,45], can accelerate the avulsions, making difficult a sustainable use of the Pantanal lowlands.…”

Section: Resultsmentioning

confidence: 98%

“…The intense land-use change in the Pantanal highlands during the last four decades also contributes to significant changes in the ecohydrology [40] of the Pantanal. Forest suppression in highlands for crop and livestock [41][42][43][44][45] is responsible for increasing river discharge while reducing evapotranspiration and Water from catchment areas reach the modern depositional lobes through feeder channels confined in meander belts entrenched in the upper fan (IP ¼ intersection point). Abandoned lobes in both systems do not receive water from the catchment nor directly from the feeder channel, and most of the flooding comes from pluvial runoff.…”

Section: Depositional Tract and Surface Hydrology Dynamicsmentioning

confidence: 99%

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Avulsive Rivers in the Hydrology of the Pantanal Wetland

Assine

Macedo

Stevaux

et al. 2015

The Handbook of Environmental Chemistry

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This chapter presents and discusses the avulsive nature of the Pantanal rivers and shows how the ever-changing drainage network influences the surface hydrology and ecology. Besides, the systemic portrait here outlined provides new insights concerning the Pantanal hydrodynamics, in its particularities and as a whole system. A simple model of the avulsion process is illustrated, and several realistic examples of the processes leading to river avulsions are shown and discussed. The north-to-south flood-pulse wave due to the presence of bottlenecks is further described in detail. This systemic approach allows identifying that the fluvial "avulsive and bottleneck" dynamics seasonally affects both local and regional ecohydrological processes. Moreover, it shows that avulsive processes are commonplace in Pantanal, and changes in land use, particularly in river headwaters in the highlands, accelerate the avulsions, making the sustainable use of the Pantanal lowland areas difficult.

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Section: Resultsmentioning

confidence: 98%

Section: Depositional Tract and Surface Hydrology Dynamicsmentioning

confidence: 99%

Avulsive Rivers in the Hydrology of the Pantanal Wetland

Assine

Macedo

Stevaux

et al. 2015

The Handbook of Environmental Chemistry

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“…It is extremely important to develop and propose options for the Pantanal including an integral vision in relation to changes in climate and land use (see also Pott and Silva [27] and Buller et al [28]) and their synergic impacts on the Pantanal ecohydrological pulses. Assine [29] has shown that natural changes in the Taquari megafan hydrology were accentuated by the land use in the Upper Taquari Basin.…”

Section: Options For Adaptation and Sustainable Development Under CLImentioning

confidence: 99%

“…On the other hand, Bergier [2] has shown that the runoff/discharge of the rainfall in the uplands has increased due to upland deforestation over the last four decades. As a result, even for less rainy years, the maximum annual flood pulse in Ladário keeps always elevated, usually above 3 m. The upland soil management by agroforestry (see Buller et al [28]) is therefore very relevant for restoring the natural interannual flood pulse dynamics and to improve the resilience of the wetland ecosystems in the lowlands with regard to future climate change risk.…”

Section: Options For Adaptation and Sustainable Development Under CLImentioning

confidence: 99%

Climate Change Scenarios in the Pantanal

Marengo

Sampaio²,

Alves³

2015

The Handbook of Environmental Chemistry

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The South America Pantanal is a large floodplain wetland in the center of the Upper Paraguay River Basin, which has a total area of around 360,000 km 2 . Large sectors of the Pantanal floodplain are submerged from 4 to 8 months each year by water depths from a few centimeters to more than 2 m. Changes in rainfall and temperature and also on land use can affect significantly the flood season with severe consequences for downstream inhabitants. However, impact of climate change on wetlands is small so far compared to the damage caused by the lack of management at the local level due to land-use change. In this chapter we assess climate and hydrology variability for the present and projections of climate change using the global climate models from the Fifth Assessment Report (AR5) from the Intergovernmental Panel on Climate Change (IPCC). Projections show that by the end of the century, temperatures can increase up to 7 C and rainfall can decrease in both summer and particularly winter. The possibility of longer dry spells and increased evaporation may affect the water balance in the region. However, uncertainties on climate projections are still high, particular for rainfall.The South America Pantanal is a large floodplain wetland in the center of the Upper Paraguay River Basin, which has a total area of around 360,000 km 2 . The Pantanal spreads for about 140,000 km 2 and is shared among Brazil (80%), Bolivia (19%), and Paraguay (1%). During the summer rainy season (November-March), the rivers overflow their banks and flood the adjacent lowlands, forming shallow lakes and innumerable swamps and marshes and leaving island-like areas of higher ground that inundates as much as 70% of the floodplain until July. Large sectors of the Pantanal floodplain are submerged from 4 to 8 months each year by water depths from a few centimeters to more than 2 m. During the drier winter season (April-September), the rivers withdraw into their banks, but the lowlands are only partially drained. The water leaves via the Paraguay River and eventually into the Paraná River, leaving behind grasslands that support grazing animals.The Pantanal functions as a large reservoir that stores water from the surrounding plateaus during the rainy season and then delivers it slowly to the lower sections of the Paraguay River, delaying for almost 6 months the maximum flows to the Paraná River, thereby minimizing downstream flooding. As a result, any significant change in the rainfall pattern is likely to have major impacts on the local ecology and socioeconomic relations. The peak flood season for the lower Paraná River basin is 2-3 months earlier than the flood season for the Upper Paraguay River. Without the Pantanal, the two flood seasons would be simultaneous, with severe consequences for downstream inhabitants. Conversely, during dry seasons, the Pantanal continuously releases water, meaning that there is more water available downstream when it is needed most.Climate change is expected to have serious impacts on the Pantanal, and a range of ins...

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“…In the BAP, the slaughterhouse industries intensified their performance, bringing the concept of agribusiness to the new economic contribution of the state of Mato Grosso (IRIGARAY et al, 2011). In Mato Grosso do Sul, mainly in the municipality of São Gabriel do Oeste, between 1984 and 2013, there was a relative increase of 25 to 30% in grain production (soybean and corn), 24% in pasture and a drop of 29% considering the native forest (BULLER et al, 2015(BULLER et al, , 2016.…”

Section: Introductionmentioning

confidence: 99%

Mapping of Summer Agricultural Crops in the Alto Paraguai Basin Through Evi/Modis Time Series

et al. 2018

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The main land use and land cover (LULC) changes that a given area passes over the time can be evaluated by using spatial-temporal analysis of satellites images. Then, it is possible to identify the LULC changes, as well as the main causes of environmental impacts. The objective of this paper was to analyze the LULC changes of the main agricultural lands cultivated in the Alto Paraguai Basin (BAP). This paper focused on the summer crops (soybean and corn) and the analysis of agricultural expansion. The results, considering a16-year comparison, showed an increase of 40.60% in the expansion of agricultural areas. The evaluation of the accuracy showed the efficiency of the methodology of agricultural mapping, presenting a Kappa Index of 0.85 for the 2000/2001 and 0.86 for the 2015/2016 crop seasons

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Historical Land-Use Changes in São Gabriel do Oeste at the Upper Taquari River Basin

Cited by 4 publications

References 14 publications

Avulsive Rivers in the Hydrology of the Pantanal Wetland

Avulsive Rivers in the Hydrology of the Pantanal Wetland

Climate Change Scenarios in the Pantanal

Mapping of Summer Agricultural Crops in the Alto Paraguai Basin Through Evi/Modis Time Series

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