نتایج جستجو برای: increment of basal area
تعداد نتایج: 21192787 فیلتر نتایج به سال:
Tree growth in Korean red pine (Pinus densiflora, hereafter Pd), white koraiensis, Pk), and Japanese larch (Larix kaempferi, Lk) was modeled using Logistic, Korf, Gompertz, Chapman-Richards, Weibull equations stem analysis data from sample trees: 38 trees for Pd, 46 Pk, 45 Lk. The models were fitted to the total increment of tree size variables, diameter at breast height (DBH), height, basal ar...
A factorial combination of four treatments (control (CW), optimal growing season water availability (IW), optimum nutrient availability (FW), and combined optimum water and nutrient availability (FIW)) in four replications were initiated in an 8-yearold Pinus taeda stand growing on a droughty, nutrient-poor, sandy site in Scotland County, NC and maintained for 9 years. Results for the first 4 y...
BACKGROUND Elevated non-esterified fatty acids (NEFA) concentrations in non-pregnant animals have been reported to decrease pancreatic responsiveness. As ovine gestation advances, maternal insulin concentrations fall and NEFA concentrations increase. Experiments were designed to examine if the pregnancy-associated rise in NEFA concentration is associated with a reduced pancreatic sensitivity to...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
this study was conducted because of influence of prebiotics (alphamune) and symbiotic (biomin) on histometrical development of small intestine and lymphatic tissue of caecal tonsil have been not reported on broiler chicken. in this study, different parts of small intestine and caecal tonsil, which is a major area of gut associated lymphatic tissue (galt) in chicken were selected. one hundred an...
Here, we mapped fMRI responses to incrementally changing shapes along a continuous 3D morph, ranging from a head ("face") to a house ("place"). The response to each shape was mapped independently by using single-stimulus imaging, and stimulus shapes were equated for lower-level visual cues. We measured activity in 2-mm samples across human inferior temporal cortex from the fusiform face area (F...
This paper analyses the cumulative effects of selective thinning and from below on diameter basal area increments target trees after 25/26 years in 52, 69- 86-year-old silver lime (Tilia tomentosa Moench) stands. Two tree collectives were analysed: (1) elite selected between 1993–1994 permanent sampling plots (selective method), (2) a ‘comparable collective’ 2019 (25/26 later) according to same...
Changing climate can strongly affect tree growth and forest productivity. The dendrochronological approach to assessing the impact of change on is possible through climate–growth correlation analysis. This study uses an individual tree-based model Pinus wallichiana (P. wallichiana) radial response across physiographic gradients in lower distributional range Nepal. sampled six sites Makwanpur di...
cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...
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