Using palm-mat geotextiles on an arable soil for water erosion control in the UK
Investigations were conducted at the Hilton Experimental Site, east Shropshire, within the southern section of the Worfe catchment, a tributary of the mid-Severn. The effectiveness of employing palm-mat geotextiles (from Borassus palm of West Africa
and soil erosion. Although buffer strips of Borassus mats were as effective as whole plot cover of the same mats, the longevity of Borassus mats was nearly twice that of Buriti mats. Thus, use of Borassus mats as buffer strips on bare plots is highly
Use of palm-mat geotextiles for soil conservation : I. Effects on soil properties
Field experiments were conducted at Hilton, east Shropshire, U.K. during 2007–2009, to study the impacts of Borassus and Buriti mats on selected properties of the topsoil. Ten fixed plots were established, with duplicate treatments : (i) bare soil
; (ii) permanent grassed; (iii) bare soil with 1 m Borassus-mat buffer strips at the lower end of the plots; (iv) bare soil with 1 m Buriti mat buffer strips at the lower end of the plots; and (v) completely-covered with Borassus mats. Initial and final
soil samples of the topsoil were collected and analysed for bulk density, aggregate stability, soil organic matter (SOM), total soil C (TSC), total soil N (TSN) and pH. Results and discussion. In summary, utilization of Borassus mats as buffer strips
Expansion rate and geometry of floating vegetation mats on the margins of thermokarst lakes, northern Seward Peninsula, Alaska, USA
Investigations on the northern Seward Peninsula in Alaska identified zones of recent permafrost collapse that led to the formation of floating vegetation mats along thermokarst lake margins. This paper reports on the recent expansion
of these collapse features on Lake Rhonda and Lake Owl and their geometry is determined using geophysical and remote sensing measurements. In addition, the AA. determined the extent of thawed permafrost obscured by floating vegetation mats at the study site
and provided a basis for larger scale estimates of bioavailable organic carbon in the thaw bulbs below lake portions covered by floating vegetation mats. They used high-resolution remote sensing imagery to map the spatial extent of the collapse features across
the study site, ground-penetrating radar (GPR) to noninvasively map the thickness of the floating vegetation mats and ground temperature measurements to verify the presence of a talik despite very shallow water depths.
The role of questions about migration in UK censuses : a simple matter of counting, or a means of exerting power ?
Un certain nombre de questions nouvelles sur la migration intérieure ou internationale sont venues enrichir le nouveau recensement britannique de la population en 2011. L'accent est mis sur les changements apportés et sur les raisons qui ont dicté
The impact of fiscal decentralization on U.S. county population, employment, and real income growth is analyzed. The findings suggest that government organization matters for local economic growth, but that the impacts vary by government unit
capita has a negative impact on employment and population growth in nonmetropolitan counties. Local government decentralization matters differently for metropolitan and nonmetropolitan counties.
will have to take into account all approaches and schools of thought within the discipline. The present publication is an encyclopedic dictionary, combining definitions of terms with comments on the matters under discussion. In addition to the actual
Comparaison des données de la mesure du vent à l’aide d’un sodar industriel et d’un mât météorologique de haute altitude à Obninsk
Présentation des essais du sodar météorologique MFAS de la marque « Scintec » (Allemagne). Le diapason d’altitude est plus grand avec l’utilisation d’un mât météorologique de 310m et la durée du test est plus longue et pratiquement sans coupures
This article examines the conditioning and chronology to organic matter [OM] and mineral matter [MM] accumulation in the sedimentary basins of the lower course of the Kłodnica and Osobłoga Valleys, southern Poland. The OM and MM contents, determined