نتایج جستجو برای: trees quality reduction

تعداد نتایج: 1292214  

Journal: مدیریت شهری 2015

Urban green space is one of the important solicitude for urban planners and designers due to their effects on quality of life. This research used HPM model to estimate economic value of urban green space, in a case study of trees in Velenjak residential place, Tehran Metropolitan Area in Iran. View determined the spread tree on the public spaces and neighbourhoods improve residential lan...

One of the most important ways to combat desertification is Increasing the vegetation cover. One of the projects that can provide integrated management of water resources in ecosystems and Reduction of desertification and increase of vegetation cover is The use of unconventional water, including Wastewater of treatment plants urban. In this regard, proper selection of plant species adaptable an...

2007
Sofia Gripenberg Juha-Pekka Salminen Tomas Roslin

When examined at any moment in time, different parts of an individual oak tree exhibit almost as large differences in quality as different trees. But how consistent are such patterns in time? In this paper, we use intraclass correlations to assess the temporal consistency of host plant quality at several spatial scales. As measures of quality, we use both individual chemical attributes (phenoli...

2006
David J. Nowak Daniel E. Crane Jack C. Stevens

A modeling study using hourly meteorological and pollution concentration data from across the coterminous United States demonstrates that urban trees remove large amounts of air pollution that consequently improve urban air quality. Pollution removal (O3, PM10, NO2, SO2, CO) varied among cities with total annual air pollution removal by US urban trees estimated at 711,000 metric tons ($3.8 bill...

2004
Jeroen Ketema

In this paper we define Böhm-like trees for term rewriting systems (TRSs). The definition is based on the similarities between the Böhm trees, the Lévy-Longo trees, and the Berarducci trees. That is, the similarities between the Böhm-like trees of the λ-calculus. Given a term t a tree partially represents the root-stable part of t as created in each maximal fair reduction of t. In addition to d...

Journal: :Ecology 2007
Scott P Egan James R Ott

Herein we report results of transplant experiments that link variation in host plant quality to herbivore fitness at the local scale (among adjacent plants) with the process of local (demic) adaptation at the landscape scale to explain the observed distribution of the specialist gall former Belonocnema treatae (Hymenoptera: Cynipidae) within populations of its host plant, Quercus fusiformis. Fi...

Journal: :iranian red crescent medical journal 0
navid reza hosseinzadeh asl institute of social sciences, hacettepe university, ankara, turkey; institute of social sciences, hacettepe university, ankara, turkey. tel: +90-5350223304 fattaneh hosseinalipour institute of educational sciences, gazi university, ankara, turkey

background nowadays drug dependence has become one of the main concerns worldwide. indeed, drug dependence and abuse have become personal, social and, health problems that intensively threat human resources. objectives this study aimed to examine the effect of mindfulness-based stress reduction (mbsr) on health-related quality of life (hrqol) in drug-dependent males. patients and methods an exp...

2008
Gil Marom

i Abstract In the present study, the effect of the trees in windbreaks on the leeward airflow is investigated, for the first time, employing numerical models. Different arrangements of windbreaks have been considered: (i) a single row of cypress trees, (ii) two rows of cypress trees and (iii) two rows of cypress trees with a low hedge that represent shrubs in the first row. The RANS equations h...

Journal: :journal of agricultural science and technology 2012
m. ergun

kaolin-based film as surround wp® was applied to ‘galaxy’ apple trees to evaluate its effects on postharvest fruit quality. following harvest, the surround wp® on the fruit skin was either wiped off, or left unwiped, then, the fruits from these treatments along with fruits from non-surround wp®-treated trees as the control were stored at 6°c for 100 days. surround wp® film application reduced w...

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