Các bài báo công bố trong giai đoạn từ 2000 đến 2005 http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/750 2026-05-19T16:01:15Z 2026-05-19T16:01:15Z Vũ, Văn Phái http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/1368 2011-04-21T01:18:31Z 2004-01-01T00:00:00Z

Một số kết quả nghiên cứu địa mạo khu bờ biển hiện đại Việt Nam Vũ, Văn Phái There are a lot of factors that affected the formation and development of landforms of present coastal area of Vietnam. The geomorphologic features of coastal area of Vietnam formed in Holocene and developed on the different geological structures under sea-level changes and other exogenic factors (wave, current, tide, river, biology, v.v.) as well as human impacts. The present coastal area of Vietnam has been divided into three dynamic zones in onshore direction and four regions in longshore one (1. The west of Bac Bo gulf from Mong Cai to Hai Van; 2. The South Central coast from Hai Van to Ca Na; 3. South-East and South from Ca Na to Ca Mau and 4. East of Thailand gulf) with twenty-nine landform types. At present, abrasion on the hard rocks and erosion on unconsolidated sediments are dominated geomorphologic processes in both time and spatial scale. The coastal erosion is a one kind of natural hazards and increasing, which cause the losses of the land, housing, etc Today, there are many projects for economical development in the coastal zone as well as on the watershed, which effect not only on coast but also on resources and environment of coastal zone. Therefore, studying the land-sea interaction, especially under human effect and the sea level rising for ICZM, is very necessary.

2004-01-01T00:00:00Z Nguyễn, Vi Dân Ngô, Văn Liêm http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/1362 2011-04-21T01:14:13Z 2004-01-01T00:00:00Z

Lũ quét sau 70 năm đã tái diễn ở Hà Tĩnh Nguyễn, Vi Dân; Ngô, Văn Liêm Reason of the recurrence of the historical flash flood (with cycle of 70 years) in 2002 in Ha Tinh province is determined based on the results of analysis of the relation between 3 elements: Thien (the weather), Dia (geomorphological and geological characteristics), Nhan (human activities). The human activities in recent years, such as destroying the forest, making new roads... had increased the intensity of the flash flood. The interaction between form of Ngan Sau River valley and raining efficient blasts caused big raining and made Ngan Sau river become a hight raining navel. Huong Son, a district of Ha Tinh province, locates nearby the position of flood exit from Ngan Sau River entering Ca River, so it was damaged most heavily by flash flood in 2002. In the future, if the flash flood happens again, the form of flood will be basically similar to flood in 1934 and 2002. In order to mitigate the flash flood, it is necessary to recover the forest and move inhabitants from the way of flow to safety places.

2004-01-01T00:00:00Z Nguyễn, Quang Mỹ Vũ, Văn Vĩnh Đinh, Bảo Hoa http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/1350 2011-04-21T00:40:16Z 2004-01-01T00:00:00Z

Cơ sở thực tế và lý luận xác định vấn đề nghiên cứu dự báo sạt lở sông Tiền Nguyễn, Quang Mỹ; Vũ, Văn Vĩnh; Đinh, Bảo Hoa Đang cập nhật

2004-01-01T00:00:00Z Trương, Quang Hải http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/1349 2011-04-21T00:37:55Z 2004-01-01T00:00:00Z

Đánh giá ảnh hưởng của hoạt động sản xuất gốm sứ đến môi trường làng nghề Trương, Quang Hải There are many trade villages specialized in production of ceramics in provinces like Quang Ninh, Ninh Binh, Ha Noi, Binh Duong. Trade villages' ceramics production brings socio-economic profits, leading to the positive economic structure conversion. In recent years, the proportion of handicrafts value of total values of products in trade villages has increased 2-5 percent per year, revenue of ceramics is 4-6 percent per year, capita average income in ceramics trade villages has increased 7-10 percent per year. Ceramics production has provided many jobs to and raised living standard of inhabitants. Still, expanding production scale makes cultivating areas restricted and negative impact to community health due to decrease of the quality of living environment. The environment at many trade villages making ceramics is declined greatly. At Bat Trang village, toxic gas discharges fluctuating about 10 - 15 tones per daytime and night. Concentration of SO2, CO, CO2, NOx and dust is 2 - 4 times higher than allowed standard. Natural surface water resources are polluted, the contents of BOD5 and COD increase twofold to threefold. Dissolved oxygen decrease threefold, coliform increases threefold to fivefold, total of dissolved solids twofold to fourfold higher, sediment twofold to fivefold. At Bat Trang village, around 42,000 cubic meters of solid waste is discharged, in which only 30 percent is reused (mainly coal residues), most of remaining waste is discharged into pond, lagoon, channel and banks of the Red River. Measures to deal with and mitigate environmental pollution at those trade villages include socio-economic planning of trade villages, applying advanced technology, improving production lines and raising efficiency of environmental management.

2004-01-01T00:00:00Z