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Tóm tắt. Biến đổi khí hậu gia tăng tần suất, cường độ hạn hán, ngập lụt, hoang mạc hóa. là một trong những nguyên nhân quan trọng gây biến động đất sản xuất nông nghiệp tại tỉnh Hà Tĩnh. Để phân tích ảnh hưởng của một số các yếu tố khí hậu và thiên tai đến biến động sử dụng đất nông nghiệp ở tỉnh Hà Tĩnh trong giai đoạn 2005 - 2015 chúng tôi đã ...

8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 760 | Lượt tải: 0

Abstract: Tourism is one of the smokeless industries that has been developing rapidly, opening up many job opportunities as well as socio-economic development for many countries around the world. In Vietnam, the role of the tourism industry in the development of the country has been well recognized and has received early investment attention fro...

7 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 556 | Lượt tải: 0

Abstract: The world mathematicians given many method to adjust the free network, in which the confirmation that the first norm of the solution vectors must minimizing to be the standard for finding the solution in a multitude of solutions. This also conform with the weight transformation process in the deformation model to find the solution for ...

15 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 529 | Lượt tải: 0

Abstract: Late Miocene biostratigraphy of coaly sediments in the Southeastern Red River Delta are basically interpreted from the analyses of foraminifera, palynology with referencing analyses of petrographic thin section, grain-size and physicochemistry, from the samples of 3 boreholes. Late Miocene/Pliocene stratigraphical boundary is marked by...

16 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 488 | Lượt tải: 0

Abstract: The most typical air pollutants including PM10, CO, SO2, NOx are monitored at different sites indoor (basement, shopping malls) and outdoor (ambient air) of several complex buildings which are used for different purposes of resident, office, and shopping malls in Hanoi. The results show that the indoor air pollution concentrations tend...

8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 663 | Lượt tải: 0

Abstract: The Red-shanked Douc (Pygathrix nemaeus) is the only douc species recorded in all three countries of Indochina. It is classified as Endangered by IUCN, and is believed to have experienced a major drop of more than 50% of its population over the last 40 years. The known distribution of main P. nemaeus populations in Vietnam ranges from ...

11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 686 | Lượt tải: 0

Abstract: This study has selected a vortex tracking algorithm scheme for simulating the activity of tropical cyclone in the Vietnam East Sea by CCAM model. The results show that the CCAM model is able to simulate well the large scale in each month through a reasonable description of the movement rules of the tropical cyclone in the study area. T...

12 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 518 | Lượt tải: 0

Abstract: In this paper, the relationship between Tropical Cyclone (TC) Genesis Potential Index (GPI) and the number of TC (NTC) associated with ENSO over the Vietnam East Sea (VES) was investigated. Observed TC data of the Regional Specialized Meteorological Center (RSMC) Tokyo Typhoon Center and ERA Interim reanalysis data for the period 1985-...

11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 485 | Lượt tải: 0

Abstract: The South Central Coastal Quaternary sandy formation has been studied by many authors according to different objectives, mainly for establishing quaternary geological maps ata different scale. There are 5 sedimentary cycles established based on the absolute age of the sand, that was analyzed by the method of thermoluminescent dating of...

17 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 517 | Lượt tải: 0

Abstract: Establishing a process of interpreting the high-resolution seismic profile according to a sedimentary geological point of view is a very urgent task. The explanation process can be divided into the following steps: (1) Boundary demarcation of sequences based on unconformable surfaces showing signs of erosion of the river bed; (2) Analy...

16 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 618 | Lượt tải: 0