Slope aspect, slope length and slope inclination controls of shallow soils vegetated by sclerophyllous heath - links to long-term landscape evolution
Australia ; Biogeography ; Heath ; Impact ; New South Wales ; Sandstone ; Slope ; Slope dynamics ; Slope gradient ; Soil erosion ; Vegetation
On upland Triassic sandstone slopes of the western Blue Mountains in Southeastern Australian highlands, nonswamp, sclerophyllous heath (shrub-dominated vegetation) on shallow soils is commonly found downslope and adjacent to sclerophyllous forest
on deeper soils. The AA. test the strength of the relationship between aspect and heath/shallow soil distribution, and consider other possible controls related to erosion thresholds and slope inclination. Shallow soils vegetated by heath are more strongly
The geoecology of subalpine heaths in the Abisko Valley, northern Sweden. A study of periglacial conditions.
The purpose of this study is to study the processes, both active and inactive, which influence the formation, structure and distribution of subalpine heaths in the Abisko Valley and to compare their ecotope with the adjacent birch forest.
A description of the Belgian populations, their distribution and ecology is given. In Belgium, V. lactea occurs in wet heath. This habitat is not exceptional for this species : the indication dry heaths in Flora Europaea is misleading.
Regional differences in class dealignment: a rejoinder to Weakliem and Heath
Réponse à l'article précédent de ce même fascicule. Les divergences avec Weakliem et Heath au niveau des méthodes et des statistiques collectées sont explicitées en détail. On comprend mieux pourquoi certaines de leurs conclusions ne sont pas
Successional pathways in former pastures and heaths at Bergen, Western Norway
The vegetation discussed comprises stands on former pastures and heaths, in addition to closely related woodland stands. The vegetation is unstable, and constitutes stages in secondary successional series, initiated by the time management ceased
La Genévrière de Cour à Stoumont et son intérêt pour la conservation de la nature. (The juniper heath of Cour at Stoumont (Ardennes, Belgium) and its interest for nature conservation)
Soil production in heath and forest, Blue Mountains, Australia : influence of lithology and palaeoclimate
Australia ; Climatic variation ; Forest ; Heath ; Isotope analysis ; Lateglacial ; Lithology ; New South Wales ; Palaeoclimate ; Pedogenesis ; Quaternary ; Soil erosion ; Soil properties
Sites in the Blue Mountains show a sharp decrease of soil depth where vegetation changes from forested plateau surfaces to heath-covered spurs, and bands of bare rock in the heath suggest that soil production depends on soil presence of a finite
depth of soil. The substrate varies from hard ferruginized sandstone to soft saprolite. In situ Be 10 determinations indicate that apparent rates of erosion and soil production are greater under the relatively thin heath soil than under the thicker
Carbonate rock ; Cold area ; Erosion rate ; Field experiment ; Granite ; Heath ; Lapland ; Meadow ; Periglacial features ; Plant canopy ; Soil ; Soil properties ; Sweden ; Weathering
of the ongoing study is to determine near-surface potential weathering rates beneath birch forest, Dryas heath, heath, meadow, solifluction meadow, and willow vegetation cover types. Selected disks were excavated after 1 year, and all disks were excavated after 4
Between 1999 and 2004, nylon mesh bags containing 6.2 mm diameter fragments of crushed dolomite or granite were exposed to weathering on the surfaces of birch, Dryas heath, heath, meadow, solifluction meadow, and willow vegetation communities
The present study is intended to show the importance of protection and preservation of heather on the lower Netherrhine and to propose appropriate measures for the protection of the heath fields described. - (EG)
Climate ; Dendrochronology ; Heath ; Isotope analysis ; Moisture ; Mountain ; Multivariate analysis ; Temperature ; United States of America ; Vegetation ; Washington State
This study investigates the nature and strength of the climate signals that characterize an alpine dwarf-shrub, Cassiope mertensiana (mountain bell heather). The AA. present 6 new C. mertensiana chronologies (2 growth, 2 reproduction, 1963-2004; δ13