نتایج جستجو برای: in each soil map unit

تعداد نتایج: 17102046  

Journal: :journal of rangeland science 2015
hamid toranjzar azadeh fathi abbas ahmadi

annually, 200 ha of agh ghala rangelands in golestan, iran are under alkaligrass puccinella distans''s cultivation but the failure in the identification of appropriate sites for seed sowing may result in high costs of cultivation. the current study aims to reduce such costs through the examination of apt sites to grow p. distans in northern rangelands of agh ghala golestan, iran. because of the...

ژورنال: علوم آب و خاک 2009
اسفندیار پور بروجنی, عیسی, تومانیان, نورایر, صالحی, محمدحسن , محمدی, جهانگرد,

Geopedology is a systematic approach of geomorphic analysis for soil mapping that construct field operation mainly upon the work in sample area. The main goal of this research is to determine the effect of location of sample area and expert knowledge on credibility of generalization of the results obtained from geopedological approach for similar landforms in south-east of Borujen area. Upon pr...

ژورنال: علوم آب و خاک 2008
درویش صفت, علی اصغر , عبدی, احسان , مجنونیان, باریس ,

One of the most important cost factors in forest management, which involves a great deal of investment costs, is road construction. So evaluating forest roads and determining the best one can decrease costs. The objective of this study was to evaluate forest roads using Multi Criteria Evaluation with respect to costs. In Multi Criteria Evaluation method such factors as slope, aspect and soil ty...

ژورنال: علوم آب و خاک 2014

Comparison of the land suitability variations among the soil map units in viewpoint of pedodiversity indices may provide a good assessment of the soil mapping precision. The main objective of this study was to assess the significance of functional pedodiversity thorough two detailed map units for irrigated wheat and potato for class and subclass levels of suitability in the Faradonbeh plain, us...

Journal: Desert 2012
H. Ahmadi M. Jafari M. Nasri S. Feiznia

The problems of land degradation and soil loss are among the major problems of watersheds in Iran. For erosion andsediment estimation one can use statistical and empirical methods. For doing this, land unit map and the map of effectivefactors should be prepared. For erosion and sediment estimation one can use statistical and empirical methods. However,these empirical methods are usually time co...

درویش صفت, علی اصغر , عبدی, احسان , مجنونیان, باریس ,

One of the most important cost factors in forest management, which involves a great deal of investment costs, is road construction. So evaluating forest roads and determining the best one can decrease costs. The objective of this study was to evaluate forest roads using Multi Criteria Evaluation with respect to costs. In Multi Criteria Evaluation method such factors as slope, aspect and soil ty...

Azadeh Mohammadi Gonbadi Chooghi Bairam Komaki Farhad Honardoust Hamid Niknahad Gharmakher,

Annually, 200 ha of Agh Ghala rangelands in Golestan, Iran are under Alkaligrass Puccinella distans's cultivation but the failure in the identification of appropriate sites for seed sowing may result in high costs of cultivation. The current study aims to reduce such costs through the examination of apt sites to grow P. distans in northern rangelands of Agh Ghala Golestan, Iran. Because of the ...

Abbas Ahmadi Azadeh Fathi Hamid Toranjzar,

Annually, 200 ha of Agh Ghala rangelands in Golestan, Iran are under Alkaligrass Puccinella distans''s cultivation but the failure in the identification of appropriate sites for seed sowing may result in high costs of cultivation. The current study aims to reduce such costs through the examination of apt sites to grow P. distans in northern rangelands of Agh Ghala Golestan, Iran. Because of the...

Journal: :desert 2013
m. nasri s. feiznia m. jafari h. ahmadi

the problems of land degradation and soil loss are among the major problems of watersheds in iran. for erosion andsediment estimation one can use statistical and empirical methods. for doing this, land unit map and the map of effectivefactors should be prepared. for erosion and sediment estimation one can use statistical and empirical methods. however,these empirical methods are usually time co...

Journal: :مرتع و آبخیزداری 0
محسن حسین خانی کارشناس ارشد بیابان زدایی، دانشکدة منابع طبیعی، دانشگاه زابل اکبر فخیره استادیار دانشکدة منابع طبیعی، دانشگاه گنبد علیرضا شهریاری دانشیار دانشکدة منابع طبیعی، دانشگاه زابل احمد پهلوانروی دانشیار دانشکدة منابع طبیعی، دانشگاه زابل سهیلا نوری عضو هیئت علمی دانشکدة منابع طبیعی، دانشگاه زابل

in this research using gis effect of land management and soil criteria with eight indicators to study the sensitivity to the desert lands of the region of sistan jazinak creation is evaluated. vote based on the model parameters wilderness - the latest creation esas evaluation method wilderness creation and in most european countries and the middle east is used, took place. using the above metho...

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