Three types of geotextiles including jute mat (JM), polyester mat (PM) and polyester net (PN) were installed on slopes and their effects on erosion control and vegetation growth were investigated by both laboratory and field experiments. The results
, in both 2010 and 2011. It is shown that the geotextiles improved plant growth by providing favourable soil conditions. The geotextiles were less effective in 2011 than in 2010 as a result of their degradation over time. The jute mat was most effective
, followed by polyester mat and polyester net. The jute mat degraded gradually and its role was replaced by that of vegetation. Thus the natural geotextile mat (jute mat) is preferred since it is more effective and more environmental friendly.
Mineralisation and changes in the fractions of soil organic matter in soils of the permafrost region, Qinghai-Tibet Plateau, China
To determine the relationship between soil organic matter (SOM) decomposition and chemistry in the permafrost region of the Qinghai-Tibet Plateau (QTP), 300-day laboratory incubations at 25°C and chemical fractionation were performed to characterise
) showed some decline, and the SOM decreased by 16–20 per cent in soils of the steppe, meadow and wet meadow. These results suggest that a large proportion of the organic matter in soils of the permafrost region in the QTP is mineralisable. Based
on the changes in chemical fractions of organic matter, it could be determined that soils with higher water-soluble fractions had higher rates of carbon mineralisation, while the mechanisms involved in the respiration of different chemical fractions
Access to reeds and mat making in the lower Volta basin of Ghana
This paper explores the origins of pressures on reeds and sedges used for mat making in the lower Volta basin of Ghana, and their impact on the socially embedded system which dictates access to reed fields. The findings showed that the mat-weaving
of reed is exerting immense pressure on this once freely available resource, thus inducing landlords to impose a price on the rights of entry into marshlands by reed collectors. The imposition of these charges affected the very people that the mat-weaving
Interpretation of Late Quaternary climate and landscape variability based upon buried soil macro- and micromorphology, geochemistry, and stable isotopes of soil organic matter, Owl Creek, central Texas, USA
and stable isotope analyses of soil organic matter and pedogenic carbonate. These buried soils provide a record of changes in paleoecological and paleo-alluvial conditions spanning ~ 14 ky. Morphological and geochemical differences between buried soils
reflect changes in landscape attributable to climate, with a distinct increase in δ13C values of soil organic matter corresponding to the Holocene onset and drier conditions. Paleoecological reconstructions coupled with depth to Bk suggest possible amounts
Recent developments in the analysis of the Black Mat Layer and cosmic impact at 12.8 ka
in weathering rinds and in sands of associated paleosols and glaciofluvial deposits carry undeniable attributes of melted glassy carbon and Fe spherules, planar deformation features, and impacted minerals of diverse lithologies. In concert with other black mat
localities in the Western USA, the Netherlands, coastal France, Syria, Central Asia, Peru, Argentina and Mexico, it appears that a widespread cosmic impact by an asteroid or comet is responsible for deposition of the black mat at the onset of the Younger
Lateral and depth variation of loess organic matter overprint related to rhizoliths — Revealed by lipid molecular proxies and X-ray tomography
Although organic carbon contents are commonly very low, loess and organic matter (LOM) thereof is regarded as important terrestrial archive for vegetation and climate during deposition. However, the LOM signal is prone to contamination by OM
This paper uses a biographical approach focusing on interviewees’ narratives of encounterin Leeds, England. Through its attention to processes of mobility and emplacement, it contributes to debates about when contact with difference matters
power, specifically in relation to forces exogenous to the regional context in which such co-operation is forged. It argues that demography, perceptions of local governance and ideology matter when elites assess the importance of interlocal partnerships.
The origins of particulate organic matter (OM) preserved within lacustrine sediments of 3 lakes were investigated by coupling optical observations (palynofacies) and bulk geochemistry (Rock-Eval 6 pyrolysis). Soil organic matter (SOM) was sampled
from the surface of various land-use and land-cover areas and was characterized and compared with sedimentary organic matter. The results reveal that Lake Tankalawal is subjected to high autochthonous organic sedimentation, while lakes Bangou Kirey
The stories of land matters in four lower income settlements in Nairobi, Kenya, drawn from extensive interviews with their occupants and officials and field observations, shed light on the roles of corruption and ethnicity in land conflictsand