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Articles 1 - 11 of 11
Full-Text Articles in Physical Sciences and Mathematics
Climate Change And The Water Crisis In Israel, Lauren Deutsch
Climate Change And The Water Crisis In Israel, Lauren Deutsch
Natural Resources Management and Environmental Sciences
Israel’s water crisis is controlled by the availability and location of water resources that are affected by climate change and geopolitics in southwest Asia. Conflict between Israel and the Palestinian occupied territories in the Gaza Strip and the West Bank have put strains on the allocation of water recourses. The goal of this research was to model how much a change in climate will affect the amount of available freshwater in Israel. Intensive research taken from Israel and the occupied territories was carried out to understand how the amount of precipitation, rainfall, and the rate of evaporation is affected by …
Geochemistry And Geochronology Of The Central Metasedimentary Belt Boundary Thrust Zone Thrust Sheets In Southern Ontario, Grenville Province, Kenjo Agustsson
Geochemistry And Geochronology Of The Central Metasedimentary Belt Boundary Thrust Zone Thrust Sheets In Southern Ontario, Grenville Province, Kenjo Agustsson
Natural Resources Management and Environmental Sciences
Studies of pre-Grenvillian (1.4–1.3 Ga) plutons offer insight into the dynamics of arc amalgamation and backarc rifting prior to continental collision in the Ottawan orogeny. The Central Metasedimentary Belt boundary thrust zone (CMBbtz) is a northeast–southwest trending thrust zone consisting of metaplutonic thrust sheets enveloped in gneissic tectonites and calcitic– dolomitic marbles. Tonalitic CMBbtz thrust sheets (Dysart and Redstone) are made up of upper amphibolite-facies, foliation-concordant metatonalites (+ amphibole ± biotite ± accessory zircon and titanite) and amphibolites (± biotite ± clinopyroxene), and are located in the southern Ontario Grenville Province. These thrust sheets are thought to have formed and …
Determining Ancient Movement Of The Sur–Nacimiento Fault Zone Using Detrital Zircon Geochronology, Jennifer Per Lee
Determining Ancient Movement Of The Sur–Nacimiento Fault Zone Using Detrital Zircon Geochronology, Jennifer Per Lee
Natural Resources Management and Environmental Sciences
Middle Cretaceous movement along the Sur–Nacimiento Fault has implications for our understanding of how convergent tectonic margins evolve and for the architecture of forearc basins. Traditional explanations suggest an autochthonous California Mesozoic Forearc that underwent sinistral or thrust displacement; although recent research suggests either an allochthonous forearc or an isolated Nacimiento Block that experienced significant dextral displacement. Detrital zircons obtained from the Great Valley Group within the Nacimiento block provide age distribution patterns that can help identify sources of sediment deposition and therefore the past location of the Nacimiento block. Using U-Pb detrital zircon geochronology, we have discovered a dominance …
The Effects Of Biochar Age And Concentration On Soil Retention Of Phosphorus And Infiltration Rate, Emilie Schneider
The Effects Of Biochar Age And Concentration On Soil Retention Of Phosphorus And Infiltration Rate, Emilie Schneider
Natural Resources Management and Environmental Sciences
Changes in land use and land management practices are regarded as one of the main factors in altering the hydrogeological system, causing changes in runoff, surface supply yields, and the quality of receiving water (Tong and Chen, 2002). Phosphorus is a significant contributor to accelerated eutrophication of fresh water and is largely sourced from agricultural runoff (Sharpley et al., 1994). The dominant processes controlling solution composition in agricultural soils are primarily ‘chemical’ for P (i.e. adsorption/desorption and dissolution/precipitation) (Edwards and Withers, 1998). Biochar has chemical characteristics that have the potential to adsorb P or influence precipitation of P insoluble pools …
A Study Of Enhanced De-Chlorination And Bio-Remediation: Molasses Injections Into Groundwater, Brent Anderson
A Study Of Enhanced De-Chlorination And Bio-Remediation: Molasses Injections Into Groundwater, Brent Anderson
Natural Resources Management and Environmental Sciences
No abstract provided.
Factors Influencing Landslides In The Bittercreek Wildlife Refuge, David Mceachern
Factors Influencing Landslides In The Bittercreek Wildlife Refuge, David Mceachern
Natural Resources Management and Environmental Sciences
No abstract provided.
A Discussion Of Factors Involved In The Formation Of Slab Avalanches And An Analysis Of Avalanche Risk In The Sierra Nevada Mountains Using Gis, Kevin C. Howen
A Discussion Of Factors Involved In The Formation Of Slab Avalanches And An Analysis Of Avalanche Risk In The Sierra Nevada Mountains Using Gis, Kevin C. Howen
Natural Resources Management and Environmental Sciences
As winter recreational activities increase in mountainous environments, the need for a better understanding of snow avalanches is necessary. This project consists of a study into the physical factors that contribute to slab avalanche formation, and a GIS analysis of an avalanche prone area within the Sierra Nevada Mountains. The primary physical factors that contribute to the conditions that lead to avalanches include the slope of a mountain face, the aspect, and bare ground conditions lacking thick forest vegetation. ArcGIS is a powerful software tool that was used to map each of these factors, and then combine them to create …
Modeling Glacial Termination, Michael Murphy
Modeling Glacial Termination, Michael Murphy
Natural Resources Management and Environmental Sciences
Examines possible cause of the glacial termination or ice age cycle using a numerical model created by Tziperman et al. Also explores possible physical mechanisms causing the observed cycle of slow cooling followed by rapid warming.
An Education On Growing Water Scarcity And The Benefits Of Domestic Greywater Recycling Systems, Patricia Cates
An Education On Growing Water Scarcity And The Benefits Of Domestic Greywater Recycling Systems, Patricia Cates
Natural Resources Management and Environmental Sciences
Water scarcity is becoming an ever growing concern in the world today. Fresh potable water is a natural resource which is being used more rapidly than it is being replenished. A growing global population, agriculture, and industry have placed great demands on our water resources. There is a need to help conserve our planet’s fresh water reserves. A tremendous percentage of household drinking water in the United States is currently being used to flush toilets, water yards and wash laundry or dishes. A practice termed ‘greywater recycling’ allows a person to utilize slightly used water to irrigate landscapes and flush …
A Chemical And Morphological Study Of Soils At The Cal Poly Vineyard, Glade A. Dlott
A Chemical And Morphological Study Of Soils At The Cal Poly Vineyard, Glade A. Dlott
Natural Resources Management and Environmental Sciences
Despite cultivation for close to a decade, the soils at the Cal Poly vineyard have never been studied in detail. This study was designed to gain a better understanding of the soils for better management. Soil pits and auger holes were dug throughout the site to accurately classify soils. Soils were classified using USDA-NRCS Soil Taxonomy, and samples were taken from each horizon of each soil pit for chemical analysis. Four soil map units were delineated on the site. The pH, EC, total percent carbon and nitrogen, and plant available nitrate, sulfate, phosphate, base cations, and metal micronutrients of each …
Soil Mapping On A Swanton Pacific Ranch Rangeland, Thomas N. Witman
Soil Mapping On A Swanton Pacific Ranch Rangeland, Thomas N. Witman
Natural Resources Management and Environmental Sciences
Knowledge of soils has become very important in most land based enterprises. The understanding of soils is necessary for all different types of land management projects. The USDA mapped all of the soils in the United States starting in the late 1950’s to provide the necessary information. However because the mappers often times had to map entire counties in short amounts of time ,did not have modern technology, and had rather a vague operating procedure, there was no way to be accurate on the small scaled. To solve this problem I evaluated Dr. Ron Taskey’s landscape hierarchy, a method that …