نتایج جستجو برای: tree growth
تعداد نتایج: 976413 فیلتر نتایج به سال:
1. introduction long-term climatic data are a prerequisite for hydro-meteorological studies and understanding of past climate. iran is mostly located in semi-arid to arid climate zones, so information on the natural long-term variability of the hydroclimate is of great relevance for land use planning, agriculture, and water supply of a growing population. however, the maximum length of recorded...
the quality of plant stocks in the nursery has proven to be a key determinant factor in precocity of fruit bearing period and the size of tree crops. the quality of these trees is related to growth strength of the applied rootstock, the tendency of the cultivars to produce branches, the growth season's weather conditions as well as the efficiency of different treatments stimulating branchi...
Trees have been affected by environmental changes, including climatic conditions. Thus, the study on anatomical and morphological characteristics of tree rings provides the possibility of climate study. The present investigation aimed to study the effect at climatic factors such as temperature (maximum, medium and minimum), precipitation on the growth rings of Pinus brutia. 30 Pinus brutia tree...
the paper deals with the analysis of the external factor (solar activity, volcanic eruptions) influence on tree growth at the kola peninsula, northwestern russia. pinus sylvestris l. (scots pine) tree-ring chronologies collected nearby the northern timberline (68.63n, 33.25e) include the oldest (1445-2005 ad) living pine tree found up to date in the kola peninsula. a total of 18 living trees pi...
The modification of typical age-related growth by environmental changes is poorly understood, In part because there is a lack of consensus at individual tree level regarding age-dependent growth responses to climate warming as stands develop. To increase our current understanding about how multiple drivers of environmental change can modify growth responses as trees age we used tree ring data o...
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