nature wonders the mississippi river

... loads during observation periods and to clarify the optimum frequency of routine observation for precise estimation of annual total pollutant loads. The flow in the both sides of the routine observation ... transverse points over the river during five periods of flooding in the routine observation period. The frequency of flooding-stage...

Ngày tải lên: 05/09/2013, 09:38

... Takanobu Inoue, Department of Architecture and Civil Engineering, Toyohashi University of Technology, Email: inoue@tutrp.tut.ac.jp Assessment of Mercury Contamination in the Kahayan River, Central ... River R-104 101 401 1101 402 403 501 R-101 R-102 R-103 R-104 101 401 1101 402 403 501 R-101 R-102 R-103 R-104 101 401 1101 402 403 501 R-101 R-102 R-103 101 401 1101 402 4...

Ngày tải lên: 05/09/2013, 09:38

... showing high percentage of child deaths in the total the losses of life in the flood seasons in the MD. Save the Children (2003) reported that the vast majority of the drowning deaths in recent ... deaths of children from drowning. In peak flow periods, all children (over 160,000) in the high inundated areas are not attending their schools. The be...

Ngày tải lên: 18/10/2013, 12:15

... such as pumping stations, irrigation and drainage canal systems, crop protection dikes and dams have been built in the Mekong Delta. Almost these water works were investigated by the national ... upstream and deposit alluvium to the fields of the Delta. Flooding water eliminates a great part of the salinity in the soil in the coastal areas and flushes toxicity...

Ngày tải lên: 18/10/2013, 12:15

... development and conservation of the wetland. The multi-level action plan for the conservation of forest wetlands in the MD is not a rigid document. It offers sufficient flexibility for planning, exploitation ... Melaleuca forest in the Upper and the Lower U Minh areas were burned, accounting for approximately 57% (17% in the Lower U Minh and 4...

Ngày tải lên: 09/12/2013, 22:15

... mainly in the Long Xuyen - Ha Tien quadrangle, the Plain of Reeds, the West Hau river Fig.1: The Mekong River Basin and Land forms of the MD in Vietnam WATER QUALITY MANAGEMENT FOR IRRIGATION ... Key words: irrigation, saline intrusion, acid sulfate soil, water quality management. THE MEKONG RIVER DELTA IN VIETNAM IN GENERAL The...

Ngày tải lên: 09/12/2013, 22:15

... Ministry of Construction (1998) An overview of the drinking water supply situation 8 in the Mekong river delta, Vietnam (Le Anh Tuan) Table 5: Water Supply rates as planning stage in Vietnam ... budget, others are An overview of the drinking water supply situation 3 in the Mekong river delta, Vietnam (Le Anh Tuan) rur...

Ngày tải lên: 20/12/2013, 19:15

... Cambodia to Vietnam. At Phnom Penh, the river meets the Tongle Sap river, then splits into Tien river and Hau river before entering the border of Vietnam and continues to branch into 9 tributaries ... part of the Mekong river to the sea, the MD accepts yearly all the water flood volume of the basin. About 1.2 to 1.9 million ha of land, mainly in the...

Ngày tải lên: 16/01/2014, 17:20

... lands in the dry season. The shortage of freshwater leads to increasing salinity intrusion throughout the MD coastal provinces. (v) The floods: Discharge of the Mekong river during the wet ... level between the sea level in river estuaries and the inner lands. Also the MD is Figure 1: The Mekong River and the MD map The second International Sym...

Ngày tải lên: 16/01/2014, 17:20

... Taking the journey to the source, finding the hidden headwaters, the “heart of darkness,” is part of the Hudson s story as well as that of many other rivers, yet this river, more than any other ... to the many envi- ronmental influences of the human presence since the coming of the Europeans, and even less to the preceding thirteen millennia of human presence...

Ngày tải lên: 12/02/2014, 16:20

... shearing for the northern segments of the Ailao Shan Red River in Yunnan, China occurred between 34 and 21 m.y. Thus ages of metamorphism along the whole shear zone were dated on the basics of minerals ... isotopic ratio of plagioclase was kicked out due to the very low concentration of Sm. 7. Discussion and conclusion The peak metamorphism of th...

Ngày tải lên: 13/02/2014, 12:20

... proof that wetlands throughout the basin have a “significant nexus” to the river and the gulf and are therefore covered by the law. The small streams and associated wetlands in the Mississippi ... Council I 25 Missing Protection: Polluting the Mississippi River Basin’s Small Streams and Wetlands Table 5. Estimated Wetlands Acreage for th...

Ngày tải lên: 17/02/2014, 10:20

... system occurs at the mouth of the Zumbro River, where environment | 27 2.6. The Driftless Area in relation to the Upper Mississippi River. For the people of the Upper Mississippi Valley, past ... Index viii | contents Environment of the Upper Mississippi River Valley The portion of the Upper Mississippi River that cuts through the ungla...

Ngày tải lên: 11/06/2014, 14:35

... of the Mississippi River in St. Louis. The arch commemorates the city's role as the "Gateway to the West" during the nineteenth century. The Mississippi River 7 The Mississippi River ... down the Mississippi River. They were the first Europeans to follow the river south to the Arkansas River. Joliet, an excellent mapmaker, mapped out th...

Ngày tải lên: 11/01/2015, 19:03

... Africa: the White Nile and the Blue Nile. These two branches twist and curve, and generally flow north to Khartoum, Sudan. There, the Blue and White Nile rivers meet, forming the main Nile River. The ... humans. All of these and other fascinating sites await a Nile explorer. Several rocky waterfalls called cataracts interrupt the course of the Nile. The Nile Rive...

Ngày tải lên: 11/01/2015, 19:04