Landscape and Agricultural Patterns in Rural Areas: a Case Study in the Brionne Basin, Normandy, France

Combined Use of Multi-Temporal Optical and Radar Satellite Images for Grassland Monitoring

“…The conversion of grass into cropland results in an increase in nitrate leaching and a decrease in carbon storage in soils [3,4]. Thus, considering the increases in cropland at the expense of grasslands observed in many regions of the Earth during the last half century [5,6], the identification of grassland is a key issue for sustainable agriculture.…”

Turbidity and nitrate transfer in karstic aquifers in rural areas: The Brionne Basin case-study

“…The nature and functioning of a karstic system explain why long-term nitrate pollution in karstic systems is difficult to predict. The long-term results are to be correlated with the landscape changes which have occurred in this catchment during the past 25 years (Poudevigne and Alard, 1997;see study-area presentation).…”

“…Data were computed from an agricultural survey carried out in 1996 on the catchment area (Poudevigne and Alard, 1997). Nitrate exports were computed from the main spring survey, taking into account the discharge volumes implied (Feeny, 1993).…”

Landscape classification of Huelva (Spain): An objective method of identification and characterization

“…Ordination analysis has often been used prior to the analysis of landscape, territorial, ecological or bioclimatic classifications in an attempt to identifyfrom a group of preselected variables -those variables contributing most to the definition of groups, with a view to using them for subsequent classification (Poudevigne & Alard, 1997;McNab et al, 1999;Lyon & Sagers, 2002;Mora & Iverson, 2002, Jobin et al, 2003. Nevertheless the complementary use of classification analysis and ordination charts is also recommended as a routine procedure in ecology (Legendre & Legendre, 1998).…”