Exploratory Landscape Metrics for Agricultural Sustainability

Vaz, Eric; Noronha, Teresa de; Nijkamp, Peter

doi:10.1080/21683565.2013.825829

Cited by 40 publications

(34 citation statements)

References 38 publications

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“…For this reason, a periodic monitoring to avoid potentially serious environmental problems is advisable. This contributes to the debate of regional intelligence [34] within the context of agriculture [35], where new combinatory methods that allow spatially explicit models to integrate local decision-making should be fostered [36][37][38]. …”

Section: Discussionmentioning

confidence: 99%

Using GIS towards the Characterization and Soil Mapping of the Caia Irrigation Perimeter

et al. 2016

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Abstract:The Caia Irrigation Perimeter is an irrigation infrastructure implemented in 1968. As is often the case, the original soil map of this region (dated from 1961) does not have the detail needed to characterize a relatively small-sized zone, where intensive agricultural practices take place. Using FAO methodology and with the main goal of establishing a larger-scale soil map, adequate for the demands of a modern and intensive agriculture, we gathered the geological characterization of the study area and information about the topography, climate, and vegetation of the region. Using ArcGIS software, we overlapped this information and established a pre-map of soil resources. Based on this pre-map, we defined a set of detailed itineraries in the field, evenly distributed, in which soil samples were collected. In those distinct soil units, we opened several soil profiles, from which we selected 26 to analyze in the present study, since they characterized the existing diversity in terms of soil type and soil properties. Based on the work of verification, correction, and reinterpretation of the preliminary soil map, we reached a final soil map for the Caia Irrigation Perimeter, which is characterized by enormous heterogeneity, typical of Mediterranean soils, containing 23 distinct cartographic units, the most representative being the Distric Fluvisols with inclusions of Luvisols Distric occupying 29.9% of the total study area, and Calcisols Luvic with inclusions of Luvisols endoleptic with 11.9% of the total area. Considering the obtained information on soil properties; ArcGIS was used to develop a map in which it was possible to ascertain the impact of the continuous practice of irrigation in this area. This allows us to put forward relevant conclusions on the need to access and monitor specific Mediterranean soils in order to mitigate the environmental impact of irrigation practices.

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Section: Discussionmentioning

confidence: 99%

Using GIS towards the Characterization and Soil Mapping of the Caia Irrigation Perimeter

et al. 2016

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“…Additional crops, such as, corn, almond, and red fruits (hydroponic production), are also produced in this region (Vaz et al 2013), contributing for the increase of pesticide usage.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and seasonal loads of pesticides in surface water and suspended particulate matter from a wetland of worldwide interest—the Ria Formosa Lagoon, Portugal

Cruzeiro

Pardal²,

Rocha

et al. 2015

Environ Monit Assess

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Two novel methods were developed to extract and quantify 56 pesticides in surface waters, considering their content in both dissolved aqueous phase (DAP) and suspended particulate matter (SPM) fractions. These procedures were applied to coastal samples taken seasonally during 2012-2013, from three strategic sampling sites along the Ria Formosa Lagoon (south of Portugal). Briefly, 500 mL of water samples were filtrated, separating both fractions. The DAP fraction was extracted and pre-concentrated by solid-phase extraction (SPE), while the SPM was extracted using ultrasonic extraction technique (USE). Both fractions were then analyzed, and the pesticides were quantified and identified, within 35 min, by gas chromatography (GC) coupled to mass spectrometry (GC-MS and GC-MS/MS), respectively. The extraction of pesticides from the SPM fraction showed average recoveries of 102%, detection limits below 2.2 ng/L, and quantification limits ranging from 0.3 to 6.6 ng/L. Considering the real water samples, 73% of the selected pesticides were quantified in both DAP and SPM fractions (ΣDAP+SPM 2.3 μg/L) and their maximum levels were measured in autumn and winter. By category, the global loads of fungicides, herbicides, and insecticides were ≈407, ≈323, and ≈1.6 μg/L, respectively. Thirty-one percent of the quantified pesticides exceeded the European directives levels (2008/105/EC and 98/83/EC). From the total loads, the SPM fraction contribution was 32%, showing the importance of measuring pesticides in that fraction. The water physicochemical parameters revealed that the total nitrogen amounts were very high relatively to the legal required values, mainly close to the city of Faro (2.6 mg/L). In light of the above, measures are in need to meet European directives and protect both fauna and humans that use this area for leisure.

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“…These data are useful only for a larger scale analysis. It is therefore an important tool to understand regional dynamic more efficiently (Vaz et al 2014). …”

Section: Methodsmentioning

confidence: 99%

“…Rural landscape changes to urban landscape (Jenerette, Potere 2010;Vaz et al 2014). Major driving forces of the changes of land cover are: urbanization, globalization and transport accessibility (Antrop 2004) handled through transport infrastructure which plays a significant role in the process of landscape urbanization (Lewis, Maund 1976;Antrop 2004;Vaz et al 2012).…”

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confidence: 99%

Landscape changes of Prague outskirts from 1990 to 2012

Veith¹,

Jebavý²

2017

Hort. Sci. (Prague)

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This paper follows up the landscape changes of Prague outskirts from 1990 to 2012 using the CORINE land cover data. It quantifies these changes by observing the acreage decrease and increase of individual types of land cover. The results confirm the frequently emerging trend in Europe, namely the increase of the urban area at the expense of arable land. Another significant change is the increase of pastures in the areas farther from the city. These changes are further analysed to find regularities relating to the relief, to the distance from the city and to the transport and settlement infrastructure. On the bases of the analyses there are defined the types of changes. The most significant change is a decrease of arable land at the expense of discontinuous urban fabric and pastures. The results show that there were changes made to the land cover on an area of 17,429 ha which is equivalent to 7.3% of the evaluated area.

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Exploratory Landscape Metrics for Agricultural Sustainability

Abstract: Socioeconomic growth and urban change have been an increasing concern for decision makers in recent decades

Cited by 40 publications

References 38 publications

Using GIS towards the Characterization and Soil Mapping of the Caia Irrigation Perimeter

Using GIS towards the Characterization and Soil Mapping of the Caia Irrigation Perimeter

Occurrence and seasonal loads of pesticides in surface water and suspended particulate matter from a wetland of worldwide interest—the Ria Formosa Lagoon, Portugal

Landscape changes of Prague outskirts from 1990 to 2012

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