نتایج جستجو برای: aggregates. while total carbon and particulate organic matter in macro

تعداد نتایج: 21866976  

Journal: :مرتع و آبخیزداری 0
لیلا زندی دانشجوی کارشناسی ارشد مرتعداری، دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس رضا عرفانزاده دانشیار دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس حامد جنیدی جعفری استادیار گروه مرتعداری دانشکده منابع طبیعی، دانشگاه کردستان، ایران

this study aimed to determine the effect of land use changes from rangeland to horti-agricultural lands on the most important qualitative characteristics of soil such as total soil carbon and particulate organic matter, in salavatabad region, sanandaj. in the present study, one rangeland, two cultivated pea lands, two cultivated wheat lands and two gardens were selected in growth season in the ...

Journal: :تحقیقات آب و خاک ایران 0
ابراهیم مقیسه عضو هیئت علمی پژوهشگاه علوم و فنون هسته ای احمد حیدری عضو هیئت علمی گروه مهندسی علوم خاک دانشگاه تهران محمد قنادی مراغه عضو هیئت علمی پژوهشگاه علوم و فنون هسته ای فریدون سرمدیان عضو هیئت علمی گروه مهندسی علوم خاک دانشگاه تهران نجات پیرولی بیرانوند عضو هیئت علمی پژوهشگاه علوم و فنون هسته ای میراحمد موسوی شلمانی پژوهشگر پژوهشگاه علوم و فنون هسته ای سعد اله تیموری

throughout the present study, similar horizons (a, ab and b1) from deciduous forest, coniferous forest and rangeland types of land uses were selected, and the percentage of water stable aggregates in them measured. in each class of stable aggregate at the horizon a, free light fraction, free-particulate organic matter, intra-aggregate of particle organic mather (pom), and clay + silt complexes ...

Journal: :ecopersia 0
reza erfanzadeh associate professor, department of rangeland management, faculty of natural resources, tarbiat modares university, noor, iran behnam bahrami msc. student, department of rangeland management, faculty of natural resources, tarbiat modares university, noor, iran javad motamedi assistant professor, department of rangeland management, faculty of natural resources and agriculture, urmia university, urmia, iran ghasem ali dianati tilaki associate professor, department of rangeland management, faculty of natural resources, tarbiat modares university, noor, iran mehdi abedi assistant professor, department of rangeland management, faculty of natural resources, tarbiat modares university, noor, iran

the effects of dominant shrub species on soil organic matter (som), including total soil carbon (sc), total nitrogen (n) and particulate organic matter (pom) were studied in three stands differing in the type of shrub species, i.e. astragalus microcephalus (shrub), pteropyrum aucheri (shrub) and prangus uloptera (non-shrub).the stands were located in arid grasslands of north-western iran. for t...

Journal: :مدیریت خاک و تولید پایدار 0
رضا کریمی دانشگاه شهرکرد محمدحسن صالحی دانشگاه شهرکرد زهره مصلح دانشگاه شهرکرد

this study was conducted to investigate the impact of land use change on some of carbon components in safashahr area, fars province. four land uses (destroyed rangeland, agricultural land, new and old apple orchard) were selected. sampling was done randomly from two depths (0-20 and 20-50 cm) of each land use. particulate organic matter (pom) and extractable carbohydrate by hot water were measu...

Journal: :international journal of advanced biological and biomedical research 2014
fatemeh madadian chaleshtory naser honarjoo ahmad jalalian

objective: soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure. so, this research has been done for achieving this purpose. methods: this...

Ahmad Jalalian Fatemeh Madadian Chaleshtory, Naser Honarjoo

Objective: Soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. Organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure. So, this research has been done for achieving this purpose. Methods: This...

Ahmad Jalalian Fatemeh Madadian Chaleshtory, Naser Honarjoo

Soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. Organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure.So, this research has been done for achieving this purpose. This area is arounding sa...

ژورنال: علوم آب و خاک 2011
جابر فلاح‌زاده, , محمد‌علی حاج‌عباسی, ,

The salt–affected lands in arid regions of central Iran are characterized by low rainfall, low fertility, high evaporation and salinity. The cultivation of salt–affected lands may have a major influence on soil quality. The aim of this study was to determine the response of soil quality indicators to reclamation and cultivation of salt–affected lands occurring in Abarkooh plain, central Iran. S...

Ahmad Jalalian Fatemeh Madadian Chaleshtory, Naser Honarjoo

Soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. Organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure.So, this research has been done for achieving this purpose. This area is arounding sa...

Ahmad Jalalian Fatemeh Madadian Chaleshtory, Naser Honarjoo

Objective: Soil organic carbon has been the most important soil quality measurement factors and has intense relation with soil physical, chemical and biological characteristics. Organic matter and its components are important factors of soil aggregates constitution and stability and play significant role in its structure. So, this research has been done for achieving this purpose. Methods: This...

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