نتایج جستجو برای: haloxylon
تعداد نتایج: 331 فیلتر نتایج به سال:
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
abstract aims: even low concentrations of phenol in industrial waste can cause many difficulties for the aquatic environment. so removal of this organic matter is an important issue. the adsorption process, is one of the most effective methods for isolation and purification of phenols. the aim of this study was to introduce wood haloxylon as a natural and new absorbent to remove phenol from aqu...
Due to the harsh environmental conditions in arid and semi-arid area of country, it is essential to assess the factors affecting the vegetation in such areas. This study aimed to investigate the effect of some soil physicochemical properties (including texture, bulk density, moisture, organic matter, carbon, nitrogen, potassium, lime, sodium, electrical conductivity and pH) on Haloxylon persicu...
Introduction: With thirteen critical erosion hubs containing an area of roughly 532 thousand hectares, and 14 regions influenced by wind erosion with an area of 1144311 hectares, the Yazd province ranks fifth among the Iranian provinces in terms of the magnitude of crisis hub, and third in terms of the extent of affected areas. The history of desertification activities in the province dates bac...
A modern classification of pastures in Karakalpak Ustyurt has been developed, which combines 7 pasture types (Anabasis salsa, Salsola arbusculiformis-Anabasis Artemisia terrae-albae-Anabasis Haloxylon ammodendron, Tamarix hispida-T. elongata, Kalidium caspicum, Halocnemum strobilaceum), 2 classes (pastures stratal plains on gray-brown soils and drainless depressions solonchaks) 42 varieties, a ...
Abstract Taxonomy gives great importance to the geographical distribution of plants on surface planet earth, and for this reason, Cain introduced term Areography science that is particularly interested in areas spread world. Therefore, work dealt with an environmental study several sites western Iraq terms type soil biological communities these sites. Samples belonging different families (dicot...
Although pharmacological industries have produced a number of new antibiotics, resistance of microorganisms to these drugs has increased. Some antibiotics have become almost obsolete because of drug resistance. In the course of our research program on medicinal plants, we investigated Haloxylon scoparium a species in Moroccan Sahara. In the present study, five crude extracts, including methanol...
BACKGROUND AND AIMS China is one of the countries most severely affected by desertification. Haloxylon ammodendron (Amaranthaceae) is an ecologically important component of the desert ecosystem and is one of the main tree species used for restoration, yet we know little about its genetic structure. METHODS Genetic variation within and between nine populations of H. ammodendron from two region...
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