What is the spatial link between the Roman civilisation and cultural landscape in Romania?

<div><p>Exploring the dimensions of landscape history, particularly those reflected in the present spatial reconfiguration, requires the use of models to facilitate its evaluation. Considering heritage as a contemporary production result, in this paper the traces of Roman colonisation in the landscape are apprehended in regard to the present time. More precisely, we focused on the southern Romanian territory which was located at the periphery of the Roman Empire at the time of its maximum extent. Its peculiarity is that, even though it experienced a rather short organisation under the Roman administration, clear spatial traces emerge in the present cultural landscape. The identification of visible landmarks within the landscape was achieved through a combined framework of ancillary documents, cartographic material and archaeological gazetteer data, in an interdisciplinary attempt to produce a spatial correlation between the historical territorial planning and the present landscape. Thus, the most important results of the study include modelling the spatial pattern of Roman continuity in the present landscape.</p></div

Variation of Soil Organic Carbon and Its Major Constraints in East Central Asia

Variation of soil organic carbon (SOC) and its major constraints in large spatial scale are critical for estimating global SOC inventory and projecting its future at environmental changes. By analyzing SOC and its environment at 210 sites in uncultivated land along a 3020km latitudinal transect in East Central Asia, we examined the effect of environmental factors on the dynamics of SOC. We found that SOC changes dramatically with the difference as high as 5 times in north China and 17 times in Mongolia. Regardless, C:N remains consistent about 12. Path analysis indicated that temperature is the dominant factor in the variation of SOC with a direct effect much higher than the indirect one, the former breaks SOC down the year round while the latter results in its growth mainly via precipitation in the winter half year. Precipitation helps accumulate SOC, a large part of the effect, however, is taken via temperature. NH4+-N and topography also affect SOC, their roles are played primarily via climatic factors. pH correlates significantly with SOC, the effect, however, is taken only in the winter months, contributing to the decay of SOC primarily via temperature. These factors explained as much as 79% of SOC variations, especially in the summer months, representing the major constraints on the SOC stock. Soil texture gets increasingly fine southward, it does not, however, constitute an apparent factor. Our results suggested that recent global warming should have been adversely affecting SOC stock in the mid-latitude as temperature dominates other factors as the constraint