21 research outputs found
Effects of long-term deforestation and remnant forests on rainfall and temperature in the Central Rift Valley of Ethiopia
Phylogeographical studies in disjunct populations of Symplocos laurina Wall. using cytoplasmic PCR-RFLP approach
Canopy processes: implications for transpiration, interception and splash induced erosion, ultimately for forest management and water resources
Canopy processes: implications for transpiration, interception and splash induced erosion, ultimately for forest management and water resources
Impacts of mid- to late-Holocene land use on residual hill geomorphology: A remote sensing and archaeological evaluation of human-related soil erosion in central Karnataka, South India
Impact of patch size on woody tree species richness and abundance in a tropical montane evergreen forest patches of south India
Early-Holocene to present palaeoenvironmental shifts and short climate events from the tropical wetland and lake sediments, Kukkal Lake, Southern India: Geochemistry and palynology
Forest health estimation in Sholayar Reserve Forest, Kerala using AVIRIS-NG hyperspectral data
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Indian summer monsoon variations could have affected the early Holocene woodland expansion in the Near East
Postglacial expansion of deciduous oak woodlands of the Zagros—Anti-Taurus Mountains, a major biome of the Near East, was delayed until the middle Holocene at ~6300 cal. yr BP. The current hypotheses explain this delay as a consequence of a regional aridity during the early Holocene, slow migration rates of forest trees, and/or a long history of land use and agro-pastoralism in this region. In the present paper, support is given to a hypothesis that suggests different precipitation seasonalities during the early Holocene compared with the late Holocene. The oak species of the Zagros—Anti-Taurus Mts, particularly Quercus brantii Lindl., are strongly dependent on spring precipitation for regeneration and are sensitive to a long dry season. Detailed analysis of modern atmospheric circulation patterns in SW Asia during the late spring suggests that the Indian Summer Monsoon (ISM) intensification can modify the amount of late spring and/or early summer rainfall in western/northwestern Iran and eastern Anatolia, which could in turn have controlled the development of the Zagros—Anti-Taurus deciduous oak woodlands. During the early Holocene, the northwestward shift of the Inter-Tropical Convergence Zone (ITCZ) could have displaced the subtropical anticyclonic belt or associated high pressure ridges to the northwest. The latter could, in turn, have prevented the southeastward penetration of low pressure systems originating from the North Atlantic and Black Sea regions. Such atmospheric configuration could have reduced or eliminated the spring precipitation creating a typical Mediterranean continental climate characterized by winter-dominated precipitation. This scenario highlights the complexity of biome response to climate system interactions in transitional climatic and biogeographical regions