نتایج جستجو برای: ml 1973 soil physical and physico chemical variability induced by atriplex nummularia
تعداد نتایج: 18063273 فیلتر نتایج به سال:
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
understanding the relationship between soil and plant is essential for reclamation of degraded lands. in order to investigate the relationship between atriplex halimus density with carbon sequestration the rangeland of incheborun was studied. soil samples were collected randomly by auger in the depth of 0-30 cm of the soil profile in three different plant densities (400 stand per hectare) with ...
Effects of extracts of Euphorbia pulcherima and Atriplex nummularia on infection rate and cercarial production of The Bulinus truncatus infected with Schistosoma haematobium, as well as on the free living stages of the parasite (miracidia and cercariae) besides biochemical parameters of the snail were studied. The results showed that the LC25 of the extracts of E. pulcherima and A. nummularia c...
Oxidative stress is induced by a wide range of environmental factors including heavy metals stress. Therefore, antioxidant resistance mechanisms may provide a strategy to enhance metal tolerance, and processes underlying antioxidant responses to metal stress must be clearly understood. In the present study, the effects of heavy metals generating antioxidative defense systems (i.e. superoxide di...
The Occurrence of more than 400 landslides in Chaharmahal and Bakhtiari province shows a special sensitivity against erosion in this terrain. To investgate the role of the soil physical, chemical and mineral properties on the occurrence of the landslides in Afsar-Abad, Do ab Samsami in the west of Chaharmahal and Bakhtiari, were drilled six boreholes in sliding boundary and safe restrictio...
Terraces are old geomorphic surfaces that are not related to present streams and are best places to study the effect of time on soil formation (chronosequence). This research was carried out to study some physico-chemical parameters especially different forms of iron as soil development indices on terraces of Karaj River in Hassan-Abad, southern Tehran. To determine soil development indices in ...
to find the effect of atriplex canescens on soil chemical properties, two adjacent areas, each with and area of 1 ha, were selected in hossein abad hapeshloo shahryar. in one area it was planted atriplex canescens in 2003 while the later one without atriplex canescens was considered as control area. to sample soil, random- systematic method was used along 3 transects with a length of 100 m. in ...
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