نتایج جستجو برای: maples
تعداد نتایج: 160 فیلتر نتایج به سال:
Warmer temperatures and frequent drought directly affect urban tree health. Both abiotic conditions also health via increased density of some insect pests. Warming is predicted to benefit trees by increasing carbon sequestration allocation biomass. However, pests are rarely considered despite often co-occurring with heat. To determine the combined effects these biotic factors, we manipulated wa...
Reports of sooty bark disease maples caused by the fungus Cryptostroma corticale have recently been emerging from across Europe. The aims our study were to describe first report in Slovenia, determine pathogenicity C. corticale, confirm optimum temperature for growth fungus, and mass loss Acer pseudoplatanus wood inoculated corticale. We confirmed presence on A. via morphological molecular anal...
Sycamore is a valuable tree not only economically but also ecological and culturally. Even though it has vigorous regeneration system from its stump, coppice management triggered limited formal investigations. Therefore, the present study focused on finding most suitable strategy for achieving ground coverage biomass, as well developing growth yield models sycamore maples. Using series of eight...
The article reveals the landscape diversity of historical garden and park – National Dendrological Park "Sofiyivka" Academy Sciences Ukraine in city Uman, Cherkasy region, founded 1796-1800. In classification gardening landscapes, developed by Ukrainian architect, doctor biological sciences Rubtsov L.I., 6 types landscapes are distinguished. NDP "Sofiyivka", as an object art, belongs to group a...
Sap flow from excised maple stems collected over the winter (1986/87) was correlated with stem water content. Stem water content was high in the fall (>0.80) and decreased rapidly during 2 weeks of continuous freezing temperatures in late winter (<0.60). Exudation of sap from stem segments subjected to freeze/thaw cycles was small (<10 mL/kg) in the fall, but substantial exudation (45-50 mL/kg)...
UrbanCrowns is a software program developed by the USDA Forest Service that computes crown attributes using a side-view digital photograph and a few basic field measurements. From an operational standpoint, it is not known how well the software performs under varying photographic conditions for trees of diverse size, which could impact measurement reproducibility and therefore software utility....
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