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Tree root mounds and their role in transporting soil on forested landscapes
  • Tree root mounds and their role in transporting soil on forested landscapes
  • The growth and decay of tree roots can stir and transport soil. Therefore, the AA. document the mounding of soil beside Ponderosa and Lodgepole pine trees in the forests of Colorado's Boulder Creek watershed. Positive mounding occurs on all sides
  • of trees on slopes, indicating that the mounding is not attributable to deflection of a creeping flow of soil around the tree, but rather to the insertion of root volume on all sides in the subsurface. Mounding is commonly asymmetric even on cross-slope
  • profiles. Significant variation in the mound sizes results in no clear relationship between tree diameter and root volume displaced. These observations motivated the development of a discrete element model of tree root growth using the LIGGGHTS model
  • 2014
Latitude, basin size, and microhabitat effects on the viability of Acacia trees in the Negev and Arava, Israel
  • Latitude, basin size, and microhabitat effects on the viability of Acacia trees in the Negev and Arava, Israel
  • This study aimed to examine the relationships between presumed water availability for acacia populations and their mortality by examining the effect on tree mortality of latitude, basin size, and microhabitat in the valley floor. A total of 1 980
  • acacia trees in 11 wadis along the Arava and eastern Negev region were studied. The obtained results revealed a highly varied inter-wadi mortality rate. A negative correlation was revealed between latitude and tree mortality rate. No correlation
  • was revealed between basin area and tree mortality rate. Various rates of tree mortality were observed in different microhabitats. The low occurrence of small tree-size group indicates low rate of recruitmen.
  • 2014
An attempt to dendroclimatic reconstruction of winter temperature based on multispecies tree-ring widths and extreme years chronologies (example of Upper Silesia, Southern Poland)
  • An attempt to dendroclimatic reconstruction of winter temperature based on multispecies tree-ring widths and extreme years chronologies (example of Upper Silesia, Southern Poland)
  • Climate reconstruction ; Climatic variation ; Dendroclimatology ; Dendrology ; Poland ; South-Eastern Poland ; Temperature ; Tree species
  • 2014
Ornamental plants and the production of nature(s) in the Spanish real estate boom and bust : the case of Alicante
  • of ornamental plants like the palm tree to urbanization and real estate trends in Alicante. The results indicate that, in Alicante, economic recession and environmental crises (manifested in the pests affecting palm trees) have mutually reinforced one other
  • 2014
Detection of active oxalate–carbonate pathway ecosystems in the Amazon Basin : Global implications of a natural potential C sink
  • The oxalate–carbonate pathway (OCP) is a biogeochemical process, which has been described in Milicia excelsa tree ecosystems of Africa. The aim of this study is twofold : 1) to make an inventory of trees in the Amazon Basin presenting some
  • coupled cycles. As previously mentioned for M. excelsa tree ecosystems in Africa, carbonate accumulations observed in the Bolivian tropical forest could be extrapolated to part or the whole Amazon Basin and might constitute an important reservoir that must
  • 2014
The effect of windthrow disturbances on biochemical and chemical soil properties in the northern mountainous forests of Iran
  • Aeolian features ; Biogeochemistry ; Environmental degradation ; Forest ; Iran ; Mazandaran ; Mountain ; Soil ; Soil properties ; Tree uprooting ; Wind
  • to the uprooting of trees by windthrow events, thereby causing variations in microtopography hereby referred to as pit–mound positions. A study site situated within the Tarbiat Modares University Experimental Forest Station located in the Mazandaran province
  • was chosen for this research, with 34 uprooted trees selected for detailed study. Statistical comparisons revealed that the highest soil microbial respiration and net N-mineralization occurred in pit bottoms. Mound tops showed the lowest levels of soil
  • 2014
The efficiency of large-scale afforestation with fish-scale pits for revegetation and soil erosion control in the steppe zone on the hill-gully Loess Plateau
  • In this study, tree survival and growth, vegetation recovery and differences in soil erosion between afforestation with FSP slopes (AFS) and natural restoration slopes (NRS) were analyzed, and the suitability of afforestation with FSPs in the steppe
  • zone of the Loess hilly–gully region was assessed by field survey. the study sites were 2 watersheds located in the Yan River Basin of Ansai County, North Shaanxi Province. All 3 tree species afforested using FSPs exhibited a small-aged tree trend due
  • 2014
Using earthquakes to assess lichen growth rates
  • earthquakes and to the year where mass movements damage trees. Lichenometry consistently dates regionally synchronous rockfall events with an accuracy and precision of ±5 years. Only historical records and tree-ring dating of earthquakes are better. The 4
  • 2014
Five millennia of paleotemperature from tree-rings in the Great Basin, USA
  • Five millennia of paleotemperature from tree-rings in the Great Basin, USA
  • 2014
Registrace pohybu skalních bloků dendrogeomorfologickými metodami: nový metodický přístup na příkladu lokalit v Moravskoslezských Beskydech
  • analysis of trees which have been deformed by tilting blocks. Based on the research carried out in four localities within the Moravskoslezské Beskydy Mts, we have identified 22 event years revealing deformations caused by blocks. An analysis
  • 2014
Modeling the functional influence of vegetation type on streambank cohesion
  • The AA. present functional differences of bank-stabilizing root characteristics and added cohesion, with vegetation categorized as woody and non-woody and by the vegetation groups of trees, shrubs, graminoids, and forbs. They analyzed root
  • categories with respect to the coefficient of the root tensile strength curve, lateral root extent, and maximum root diameter. Tree roots add significantly more cohesion to streambanks than forb roots. Additionally, rhizomes may play an important role
  • 2014
Assessment of forested shallow landslide movements coupling tree ring records from stems and exposed roots
  • Assessment of forested shallow landslide movements coupling tree ring records from stems and exposed roots
  • 2014
A method for regional-scale assessment of vegetation recovery time after high-severity wildfires : Case study of Spain
  • . considered, first, the vegetation in the territory, characterized by the structure of the dominant plant community (tree, shrub, or grassland) and its regeneration strategy (resprouter or seeder); and, second, two of the main factors determining recovery time
  • 2014
Soil water content variations and hydrological relations of the cropland-treebelt-desert land use pattern in an oasis-desert ecotone of the Heihe River Basin, China
  • Arid area ; China ; Cultivated land ; Desert ; Ecotone ; Gansu ; Irrigation ; Land use ; Oasis ; Soil water ; Spatial variation ; Tree ; Water resources ; Watershed
  • 2014
Changes in soil organic carbon, nitrogen, phosphorus, and bulk density after afforestation of the Beijing–Tianjin Sandstorm Source Control program in China
  • Carbon ; China ; Cultivated land ; Ecological restoration ; Environmental degradation ; Geochemistry ; Land use ; Plantation ; Semi-arid area ; Shanxi ; Soil properties ; Tree
  • 2014
Promoting Youth’s Physical Activity through Park Design: Linking Theory and Practice in a Public Health Perspective
  • of urban green spaces important to youth physical activity. These include sports fields/facilities for movement, walkways and paths, shadow and shelter, trees, water elements, maintenance, renovation, form and size, openness, naturalness and safety
  • 2014
Competing perceptions of the rural idyll : responses to threats from coal seam gas development in Gloucester, NSW, Australia
  • of the region but the integrity of its sense of place, centred on community, rurality, agricultural production and confrontation of risk from mining. The different discourses of local groups such as ‘tree-changers’, established residents and farmers conflict
  • 2014
Sovremennye tendencii sostoâniâ malyh lednikov Central'nogo Altaâ na osnove èksperimental'nyh dannyh
  • Air temperature ; Altayskiy Kraj ; Asian part of Russia ; Climatic change ; Glacier ; Glacier retreat ; Tree line ; Twenty-first century
  • 2014
redicting functional role and occurrence of Whitebark Pine (Pinus albicaulis) at alpine treelines : model accuracy and variable importance
  • Air temperature ; Alberta ; Canada ; Forest ; Model ; Montana ; Slope ; Topography ; Tree line ; United States of America
  • 2014
Assessment of the effects of biophysical and anthropogenic factors on woody plant encroachment in dense and sparse mountain grasslands based on remote sensing data
  • This study assessed woody plant encroachment below potential tree line in the Central Pyrenees of Spain and the association of this encroachment with changes in land use. Remote sensing data from Landsat-5 Thematic Mapper (TM) from the mid-1980s
  • 2014