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Displaying 151 - 155 of 1605On the distance travelled for woodland leisure via different transport modes in Wallonia, south Belgium
Based on an extensive survey of woodland visitors in Wallonia, south Belgium, we examined a wide range of individual-, residential- and destination-level variables for their associations with the distance travelled for woodland leisure on foot, by bicycle and by car. For each transport mode, explanatory bivariate analyses were conducted firstly to identify potential correlates of the distances travelled. Then, cross-classified multilevel analysis was performed to build estimation models for the trip distance.
thermodynamic approach for assessing agroecosystem sustainability
By revisiting theoretical concepts in biogeography and the importance of thermodynamic laws in biosphere-atmosphere interactions, ecological sustainability in agricultural systems may be better defined. In this case study, we employed a multidisciplinary methodology for exploring agroecosystem sustainability by using eddy covariance (EC) data to compute thermodynamic entropy production (Ï) and relate it to water, energy and carbon cycling in croplands and grasslands of the Central US.
Private reserves in Brazil: Distribution patterns, logistical challenges, and conservation contributions
Traditional strategies to stem declines in biodiversity include the establishment of public protected area networks. However, private lands are an increasingly important component of contemporary reserve networks. Despite the increasing recognition of the value of private lands for conservation little is known about these areas. Consequently, this study aimed to re-evaluate the changes in private reserves in Brazil since 2005. Brazilâs private reserve system is represented by 1182 reserves, recognized under federal law and created to protect nature in perpetuity.
Evidence for deviations from uniform changes in a Portuguese watershed illustrated by CORINE maps: An Intensity Analysis approach
We apply a method to evaluate the strength of the evidence for deviations from uniform land change in a coastal area, in the context of Intensity Analysis. The errors in the CORINE maps at 1990 and 2006 can influence the apparent change, but the errors are unknown because error assessment of the 1990 map has never been released, while the error of the 2006 map has been checked for only some countries. The 1990 and the 2006 maps of a coastal watershed in Portugal served as the data to compute the intensities of changes among eight categories.
Importance of spatial scale in structuring emergent lake vegetation across environmental gradients and scales: GIS-based approach
Geographical information systems (GIS)-based approaches support the traditional empirical assessment and monitoring measures to indicate large-scale environmental alterations caused by global change. We examined the relationship between cover patterns of emergent aquatic plants derived from the CORINE land cover database, and environmental gradients (i.e. lake, climate and land cover and soil variables) at four different buffer scales (50m, 100m, 300m and 500m) in 408 boreal lakes in Finland.