نتایج جستجو برای: soil sciences
تعداد نتایج: 320052 فیلتر نتایج به سال:
the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...
درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...
It is important to develop Martian soil simulants that can be used in Mars exploration programs and Mars research. A new Martian soil simulant, called Jining Martian Soil Simulant (JMSS-1), was developed at the Lunar and Planetary Science Research Center at the Institute of Geochemistry, Chinese Academy of Sciences. The raw materials of JMSS-1 are Jining basalt and Fe oxides (magnetite and hema...
a The State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Beijing Normal University and Institute of Remote Sensing Applications of Chinese Academy of Sciences, Beijing, China b School of Geography, Beijing Normal University, Beijing, China c USDA ARS Southwest Watershed Research, Tucson, AZ 85719, USA d College of Global Change and Earth System Sciences, Beijing Normal Univers...
1 Department of Earth and Planetary Sciences and School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA. 2 Now at Department of Chemistry, UC Berkeley, Berkeley, California, USA. 3 Now at Service d’Aéronomie, IPSL, Paris, France. 4 Now at Department of Soil, Water & Climate, University of Minnesota, St. Paul, MN, USA. 5 Atmospheric Sciences Division, NASA ...
C. Andrade1,2, J. A. Santos2, R. Trigo3, and J. Corte-Real4 1Polytechnic Institute of Tomar, Mathematic and Physics Department, Quinta do Contador, Estrada da Serra, 2300-313 Tomar, Portugal 2Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, P.O. Box 1013, 5001-801 Vila Real, Portugal 3University of Lisbon, Geophysic...
Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, North Carolina 27707 (C.-Y.H., F.S.K., B.M.H., J.X.); Department of Agronomy, Zhejiang University, Hangzhou 310029, China (L.F., J.Q., S.T.); Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (K.S., S.R.); Yunnan...
Trampling on maritime Antarctica: can soil ecosystems be effectively protected through existing codes of conduct? Pablo Tejedo, Luis R. Pertierra, Javier Benayas, Peter Convey, Ana Justel & Antonio Quesada 1 Department of Ecology, Faculty of Sciences, Universidad Autónoma de Madrid, C/ Darwin 2, Madrid, ES-28049, Spain 2 British Antarctic Survey, Natural Environment Research Council, High Cross...
An integrative hierarchical stepwise sampling strategy for spatial sampling and its application in digital soil mapping Lin Yang a , A-Xing Zhu a b , Feng Qi c , Cheng-Zhi Qin a , Baolin Li a & Tao Pei a a State Key Laboratory of Resources and Environment Information System, Institute of Geographical Sciences and Resources Research, Chinese Academy of Sciences, Beijing, PR China b Department of...
Title of Thesis: EVALUATION OF LABILE SOIL CARBON TEST FOR PREDICTION OF SOIL PRODUCTIVITY RESPONSE TO ORGANIC MATTER MANAGEMENT Shawn T. Lucas, Master of Science, 2004 Thesis Directed by: Professor Ray R. Weil Department of Natural Resource Sciences and Landscape Architecture A KMnO4 oxidation method for estimating labile soil C (CL) was evaluated for use in a soil testing mode to identify soi...
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