منابع مشابه
the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Survival of decapod crustaceans discarded in the Nephrops fishery of the Clyde Sea area, Scotland
The Clyde Sea Nephrops fishery produces large amounts of invertebrate discards. Of these, as much as 89% are decapod crustaceans, including the swimming crab Liocarcinus depurator (Linnaeus, 1758), the squat lobster Munida rugosa (Fabricius, 1775) and the hermit crab Pagurus bernhardus (Linnaeus, 1758). The short-term mortality of these species was assessed following trawling and periods of aer...
متن کاملenvironmental effects of gol-e-gohar iron ore mine on groundwater of the area
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
Impact of Environmental Conditions on the Biodiversity of Mediterranean Sea Lagoon, Burullus Protected Area, Egypt
Lake Burullus is one of the vulnerable Egyptian coastal lakes suffering from high level of aquatic plant, over fishing, expansion in fish farming and agricultural drainage discharges and increasing of human activities. Eutrophication in water bodies of the lake is associated with growth of the different hydrophytes which have direct effects on Euro-Asian Palaearctic migrants passing Egypt. The ...
متن کاملImpact of Environmental Conditions on the Biodiversity of Mediterranean Sea Lagoon, Burullus Protected Area, Egypt
Lake Burullus is one of the vulnerable Egyptian coastal lakes suffering from high level of aquatic plant, over fishing, expansion in fish farming and agricultural drainage discharges and increasing of human activities. Eutrophication in water bodies of the lake is associated with growth of the different hydrophytes which have direct effects on Euro-Asian Palaearctic migrants passing Egypt. The ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Geographical Journal
سال: 1894
ISSN: 0016-7398
DOI: 10.2307/1773538