Forest clearance: impact of landuse change on fertility status of soils from the São Francisco area of Niterói, Brazil

McAlister, John; Smith, Bernard; Sanchez, B.

doi:10.1002/(sici)1099-145x(199809/10)9:5<425::aid-ldr306>3.0.co;2-z

Cited by 20 publications

(28 citation statements)

References 27 publications

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“…In-depth studies of land use/cover change (LUCC) have been conducted on various scales and achieved extensive valuable results [4][5][6][7][8][9][10]. These results mainly include findings regarding spatiotemporal changes in land use [11][12][13][14], the relation between land use change and its driving forces [15,16], the simulation of land use change [17][18][19], and the impact of land use change [19][20][21][22][23]. Over the previous 30 years, the globe has experienced rapid urbanization.…”

Section: Introductionmentioning

confidence: 55%

Characterizing Spatiotemporal Pattern of Land Use Change and Its Driving Force Based on GIS and Landscape Analysis Techniques in Tianjin during 2000–2015

Liu

2017

Sustainability

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Abstract:The spatial and temporal characteristics and driving factors analysis of regional land use are the core scientific problems in the research of ecological environment and human sustainable development. It is also an important basis for the government to formulate land management policy. Based on the land use maps of 2000, 2005, 2010 and 2015, this article analyzed the spatiotemporal pattern of land use change in Tianjin, and determined the relative importance of each driving factor of land use change. The main features of land use change were the continuous expansion of built-up land (1386.89 km 2 /74.73% gains) and the decrease of arable land area (1181.60 km 2 /16.84% losses). The area and intensity of land use change were not completely consistent, such as Wuqing and Jixian. The hotspots of land use change mainly were located in the main urban region in Tianjin, around the suburban settlements and Binhai New Area. The landscape pattern in the research region has also changed significantly. The Largest patch index (LPI) and largest shape index (LSI) of arable land showed an increasing trend, and the degree of landscape fragmentation of arable land was deepened. The trend of landscape index of built-up land was similar to that of arable land, but the change intensity was more severe. In addition, the article also used the stepwise regression analysis in the multiple regression to analyze the relative importance of various driving factors, indicating that the driving factors of the built-up land and arable land change were obviously different in different periods. Government policies also have a significant impact on land use change, such as establishing the Tianjin Binhai New Area (TBNA).

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Section: Introductionmentioning

confidence: 55%

Characterizing Spatiotemporal Pattern of Land Use Change and Its Driving Force Based on GIS and Landscape Analysis Techniques in Tianjin during 2000–2015

Liu

2017

Sustainability

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“…Samples contained weathering products such as iron oxyhydroxides as shown in the amorphous iron phase and kaolinite by XRD analysis. Soils from this area are classified as weathered red/podzolics (McAlister et al 1998) and therefore contain high concentrations of both Fe and Al. Hydrogen peroxide is commonly used with nitric acid to extract the organic fraction of soils and sediments (Quevauviller 1998), however, in this study it was omitted since H 2 O 2 can react to form oxalato-aluminate or oxalato-ferrate complexes (Farmer & Mitchell 1963).…”

Section: Sample Preparation and Analysismentioning

confidence: 99%

Geochemical Distribution and Bioavailability of Heavy Metals and Oxalate in Street Sediments from Rio de Janeiro, Brazil: A Preliminary Investigation

McAlister

Smith

Neto³

et al. 2005

Environ Geochem Health

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As urbanisation accelerates within less-economically developed countries, populations in cities such as Rio de Janeiro are subject to numerous health risks relating to "heavy metal", sewage and vehicle pollution. These risks apply especially to children, through inhalation and dermal contact with pollutant-rich street sediments that reflect contamination from atmospheric deposition and act as effective sinks for heavy metals and oxalates. To assess the nature and extent of these risks street sediments were collected from industrial, commercial, residential and recreational areas with varying traffic densities within Rio de Janeiro. A modified selective extraction procedure was used to study the geochemical partitioning and bioavailability of Fe, Mn, Zn, Cu, Cr, Ni, Pb and C(2)O(4) (-). Oxalate partitioning has not been studied by traditional sequential methods and results from this procedure highlight the potential bioavailability of both oxalates and "heavy metals", especially Pb and C(2)O(4) (-) in industrial and recreational areas.

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“…These soils contain clay and associated minerals along with pollen, algae and fungi. Association of natural elements in these street sediments is coherent with the red-podzolic soil type typical of this area (McAllister et al 1998). Other possible sources of particulate matter that may be incorporated into street sediments come from fossil fuel combustion, industrial processes, abrasion of vehicular components and their exhaust emissions, incinerators, power plants and foundry operations.…”

Section: Introductionmentioning

confidence: 99%

The contribution of heavy metal pollution derived from highway runoff to Guanabara Bay sediments: Rio de Janeiro / Brazil

Pereira

Baptista-Neto

Smith

et al. 2007

An. Acad. Bras. Ciênc.

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In this study, geochemical and particle size analyses of thirty-four street sediment samples collected from an urban environment around Guanabara Bay, shows highway run-off to be a potential source of heavy metals for the pollution of near-shore sedimentary deposits. Concentrations of Fe, Mn, Zn, Cu, Pb, Cr and Ni were found to be higher in these sediments when compared to concentrations found in samples from the natural environment, where an Enrichment Factor (EF) index was used to distinguish between natural and anthropogenic sources. Particle size analysis shows these sediments to be predominantly composed of sand and no distribution pattern was observed between the sand, silt and clay fractions. High levels of organic matter and heavy metals would indicate that these street run-off materials are a potential source of pollution for the near-shore sediments of Guanabara Bay.

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Forest clearance: impact of landuse change on fertility status of soils from the São Francisco area of Niterói, Brazil

Cited by 20 publications

References 27 publications

Characterizing Spatiotemporal Pattern of Land Use Change and Its Driving Force Based on GIS and Landscape Analysis Techniques in Tianjin during 2000–2015

Characterizing Spatiotemporal Pattern of Land Use Change and Its Driving Force Based on GIS and Landscape Analysis Techniques in Tianjin during 2000–2015

Geochemical Distribution and Bioavailability of Heavy Metals and Oxalate in Street Sediments from Rio de Janeiro, Brazil: A Preliminary Investigation

The contribution of heavy metal pollution derived from highway runoff to Guanabara Bay sediments: Rio de Janeiro / Brazil

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