Relationship between particle density and soil bulk chemical composition

Developing models to predict soil bulk density in southern Wisconsin using soil chemical properties

There is an emerging need to estimate and verify soil carbon credits attributed to conservation tillage and prairie restoration in the Midwestern U.S. for the developing global carbon market. However, current soil sampling strategies may need to be augmented by empirical modeling to minimize costs while covering larger regions. Models were constructed relating soil bulk density (BD) to soil org...

The Relationship Between Soil Particle Size And Lead Concentration

Many studies regarding heavy metal concentration in contaminated soils have observed increased concentrations in the smaller-sized particles. This phenomenon has been attributed to differences in organic matter, contaminant source, and particle surface area. The relationship between particle size and lead concentration in soils was explored. Data from four published studies were considered; the...

Swelling Bulk Density and its Application in Arya and Paris Model for Soil Moisture Curve Prediction

the relationship between critical thinking and reading strategies

during the process of reading, sometimes learners use ineffective and inefficient strategies and some factors may influence their use of strategies. perhaps critical thinking is one of these factors. this study aims to identify those categories of reading strategies that are mostly used by iranian efl learners and to see if there is any significant relationship between the critical thinking abi...

the relationship between collocational competence and listening comprehension

پس از پیدایش روش تدریس ‏‍tpr توسط جیمز اشر که توجه و تآکید بسیاری بر مهارت شنیداری داشت زبانشناسان همواره در صدد یافتن راههایی برای بهبود این مهارت در زبان آموزان می باشند. از طرفی جی-آر-فرث که از پیشگامان زبانشناسی می باشد بر تآثیر لغات و بویژه گروه کلمات که اغلب در گفتار با هم می آیند (هم آیی کلمات)تأکید بسیار کرده است. به این دلیل و به منظوربررسی رابطه بین این دو عامل یعنی درک شنیداری و دانش...