Author: Heikki Simola
Publisher: Springer Science & Business Media
Release Date: 2012-12-06
Lake Ladoga is the largest lake in Europe and, with its surface of 17,891 km2 and volume of 837 km3, it ranks among the top fifteen of the world's freshwater bodies. The ecological condition of Lake Ladoga is of concern to several million people living in its surroundings. There is evidence of water quality degradation and gradual eutrophication of the lake during the past decades; on the other hand, pollution control measures have improved the situation in many of the most polluted sites near industrial effluent sources. The first international Lake Ladoga Symposium was held in St. Petersburg on 22-26 November, 1993. The symposium was attended by 160 scientists, and about half of the papers presented at the symposium have been edited for this book. The contributions are grouped under the following headings: Present state of Lake Ladoga; Hydrodynamics of Lake Ladoga and other large water bodies; Water quality and pollution; Ecological studies of Lake Ladoga biota; History of Lake Ladoga and rates of change in its environment; Research methods for large lakes. Besides providing up-to-date information on the state of the lake, the papers deal with studies of many other large lakes of the cold-temperature zone and the general problems and methods of large lake research. Furthermore, the book is a valuable source of reference to the voluminous Russian limnological literature.
This is the first book to be entirely devoted to the geomorphology and sedimentology of estuaries. The chapters in the book are structured according to the morphogenetic classification which is based on a new definition of estuaries and covers all areas within this field. The material is presented in such a way that it serves both as a reference for the researcher and as a textbook for use on courses covering estuaries, coastal environments, sedimentology and oceanography. Internationally renowned specialists have provided in-depth descriptions of the geomorphology, sedimentology and interactive processes associated with each particular subject.
Author: Chris Wood
Publisher: Greystone Books
Release Date: 2013-07-09
Genre: Political Science
An incisive critique of Canada’s drinking water gatekeepers. Canada is celebrated for its abundance of fresh water, and few Canadians question the safety of the water that comes from our taps. But is this trust justified? One study estimates that contamination of drinking water causes 90,000 cases of illness and ninety deaths every year. In this authoritative review of decades of legislation, research, and independent regulatory critiques, accompanied by riveting stories of the many failures of our water supply, award-winning journalist Chris Wood and Canadian water policy expert Ralph Pentland expose how governments at every level have failed to protect our drinking water. The authors review the history of water management in Canada and approaches to the problem in Europe and the United States, then analyze our own approach in recent times, and finally propose a strategy to protect our water—including a new charter that will hold our government to account.
Author: Donald Ricky
Publisher: Somerset Publishers, Inc.
Release Date: 1998-01-01
There is a great deal of information on the native peoples of the United States, which exists largely in national publications. Since much of Native American history occurred before statehood, there is a need for information on Native Americans of the region to fully understand the history and culture of the native peoples that occupied Texas and the surrounding areas. The first section is contains an overview of early history of the state and region. The second section contains an A to Z dictionary of tribal articles and biographies of noteworthy Native Americans that have contributed to the history of Texas.
Author: Charles Seabrook
Publisher: University of Georgia Press
Release Date: 2013-05-01
The World of the Salt Marsh is a wide-ranging exploration of the southeastern coast--its natural history, its people and their way of life, and the historic and ongoing threats to its ecological survival. Focusing on areas from Cape Hatteras, North Carolina, to Cape Canaveral, Florida, Charles Seabrook examines the ecological importance of the salt marsh, calling it "a biological factory without equal." Twice-daily tides carry in a supply of nutrients that nourish vast meadows of spartina ( Spartina alterniflora )--a crucial habitat for creatures ranging from tiny marine invertebrates to wading birds. The meadows provide vital nurseries for 80 percent of the seafood species, including oysters, crabs, shrimp, and a variety of finfish, and they are invaluable for storm protection, erosion prevention, and pollution filtration. Seabrook is also concerned with the plight of the people who make their living from the coast's bounty and who carry on its unique culture. Among them are Charlie Phillips, a fishmonger whose livelihood is threatened by development in McIntosh County, Georgia, and Vera Manigault of Mount Pleasant, South Carolina, a basket maker of Gullah-Geechee descent, who says that the sweetgrass needed to make her culturally significant wares is becoming scarcer. For all of the biodiversity and cultural history of the salt marshes, many still view them as vast wastelands to be drained, diked, or "improved" for development into highways and subdivisions. If people can better understand and appreciate these ecosystems, Seabrook contends, they are more likely to join the growing chorus of scientists, conservationists, fishermen, and coastal visitors and residents calling for protection of these truly amazing places.