نتایج جستجو برای: soil protection

تعداد نتایج: 356639  

Journal: :International Journal of Advanced Engineering Research and Science 2021

Journal: :مرتع و آبخیزداری 0
میر نصیر نویدی فریدون سرمدیان شهلا محمودی

sustainable exploitation of land resources is directly affected by considering soil quality which finally will also conclude environmental protection. therefore, assessing different soil quality aspects which are sensitive to various land management practices seems too important. in this study, some selected soil quality indicators have been compared in five land use systems including untouched...

Journal: :مدیریت خاک و تولید پایدار 0
فاطمه ارزاقی دانشجو دانشگاه شهید چمران اهواز نعیمه عنایتی ضمیر هیات علمی/دانشگاه شهید چمران اهواز احمد فرخیان فیروزی هیات علمی/ دانشگاه شهید چمران اهواز

wind is an important erosive force in deserts, where limited cover of vascular plant material offers little soil-surface protection. erosion and sediment from soil surfaces occurs when wind forces exceed soil threshold friction velocities. soils with physical or biological crusts usually resist wind erosion. this study was conducted by the aim of investigation the effect of trichoderma harzianu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده منابع طبیعی 1386

چکیده ندارد.

To investigate the effects of Cd and Cd-Sodium nitroproside (SNP) on growth and physiological parameters of Melia azedarach, this experiment was done in a completely randomized design in three replicates and arranged as factorial. Results showed the amounts of Cd and proline in the root of the plant significantly increased as Cd concentration in soil increased. Length and weight of roots decrea...

2017
Lauren Steinbaum Laura H Kwong Ayse Ercumen Makeda S Negash Amira J Lovely Sammy M Njenga Alexandria B Boehm Amy J Pickering Kara L Nelson

Globally, about 1.5 billion people are infected with at least one species of soil-transmitted helminth (STH). Soil is a critical environmental reservoir of STH, yet there is no standard method for detecting STH eggs in soil. We developed a field method for enumerating STH eggs in soil and tested the method in Bangladesh and Kenya. The US Environmental Protection Agency (EPA) method for enumerat...

2009
J. Miller L. Taylor C. Zeitlin M. DiGiuseppe T. Murakami

We have measured the radiation transport and dose reduction properties of lunar soil with respect to selected heavy ion beams with charges and energies comparable to some components of the galactic cosmic radiation (GCR), using soil samples returned by the Apollo missions and several types of synthetic soil glasses and lunar soil simulants. The suitability for shielding studies of synthetic soi...

Journal: :Int. J. Digital Earth 2011
Panos Panagos Arwyn Jones Claudio Bosco P. S. Senthil Kumar

Historical soil survey paper maps are valuable resources that underpin strategies to support soil protection and promote sustainable land use practices, especially in developing countries where digital soil information is often missing. However, many of the soil maps, in particular those for developing countries, are held in traditional archives that are not easily accessible to potential users...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید