• Species composition and distribution of marine macro algae at Co To and Thanh Lan archipelagoSpecies composition and distribution of marine macro algae at Co To and Thanh Lan archipelago

    Abstract This paper exhibites species composition and distribution of marine seaweed at 10 sites of Co To and Thanh Lan islands in May 2019. The studies record 76 species of marine algae in the area, belonging to four divisions: Cyanophytes, Rhodophytes, Ochrophytes and Chlorophytes. Among them, five species are classified into Cyanophytes (com...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 488 | Lượt tải: 0

  • Comparision of several secondary metabolite and elemental ion contents of leaves from Kandelia obovata and Sonneratia caseolaris forests located in the red river deltaComparision of several secondary metabolite and elemental ion contents of leaves from Kandelia obovata and Sonneratia caseolaris forests located in the red river delta

    ABSTRACT The two mangrove species Kandelia obovata and Sonneratia caseolaris were widely planted in the Red River delta. Both K. obovata and S. caseolaris forests play an important role in the economic development and environmental protection of the delta. However, chemical responses of the common mangrove forests to different ecological condit...

    pdf13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 415 | Lượt tải: 0

  • Research on the stability of the 3D frame on coral foundation subjected to impact loadResearch on the stability of the 3D frame on coral foundation subjected to impact load

    INTRODUCTION Most of the structures built on the coral foundation are frames that consist of 3D beam elements. Under the wave and wind loading, response of the structure is periodical. However, in the case of strong waves and wind or ships approaching, the structural system is usually subjected to impact load. The simultaneous impact of hor...

    pdf13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 493 | Lượt tải: 0

  • Wave overtopping and splash-up at seawalls with bullnoseWave overtopping and splash-up at seawalls with bullnose

    Abstract Seawalls have been erected to protect hundreds of towns and tourism areas stretching along the coast of Vietnam. During storm surges or high tides, wave overtopping and splash-up would often threaten the safety of infrastructures, traffic and residents on the narrow land behind. Therefore, this study investigates these wave-wall intera...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 403 | Lượt tải: 0

  • The scale of the central beach change processes in the west coast of Nha Trang bayThe scale of the central beach change processes in the west coast of Nha Trang bay

    Tóm tắt Bãi biển trung tâm thuộc bờ tây vịnh Nha Trang đã xảy ra quá trình xói trong những năm gần đây. Việc xác định chế độ thủy động lực và nguyên nhân gây biến động bãi biển này hiện vẫn đang là bài toán mở và được các nhà khoa học, quản lý quan tâm. Nghiên cứu này cho thấy các nguyên nhân và quy mô của các quá trình gây biến động bãi biển t...

    pdf14 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 378 | Lượt tải: 0

  • Sea surface temperature anomaly in the coastal waters of Vietnam related to ENSO phenomenonSea surface temperature anomaly in the coastal waters of Vietnam related to ENSO phenomenon

    Abstract The studies on the impact of the ENSO phenomenon on climate and environment change have shown that the Bien Dong (Southeast Asia Sea) is strongly influenced by this phenomenon. This paper focuses on analyzing sea surface temperature (SST) monthly data for 16 years (7/2002–12/2017) in the coastal waters of Vietnam from MODIS satellite i...

    pdf11 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 443 | Lượt tải: 0

  • Assessment of pollution load from industrial activities of Nghi Son Economic Zone (Thanh Hoa province)Assessment of pollution load from industrial activities of Nghi Son Economic Zone (Thanh Hoa province)

    Abstract Thanh Hoa coastal waters have received a large amount of waste from industrial activities of Nghi Son Economic Zone such as thermal power, vegetable oil production, wood processing, steel rolling and petroleum refinery. Employing environmental rapid assessment method, the discharged industrial wastewater from Nghi Son Economic Zone was...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 482 | Lượt tải: 0

  • Assessment of soil and soil-water salinity in Ben Tre province by electromagnetic technologyAssessment of soil and soil-water salinity in Ben Tre province by electromagnetic technology

    ABSTRACT Assessment of soil and soil-water salinity is essential in agricultural production, therefore it is necessary to find out the non-costly, effective, rapid and reliable integrated methodology for this purpose. The paper presents the results of using the electromagnetic induction instrument EM31-MK2 in combination with collecting and an...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 423 | Lượt tải: 0

  • Assessment of impacts of utilization on water resources in the basin of trans-boundary Red river systemAssessment of impacts of utilization on water resources in the basin of trans-boundary Red river system

    Abstract The Red river system is the large trans-boundary river system, there has been no united system of hydrology stations as well as integrated plan for the water use and management in the whole basin. The trend of water resources change in the Red river system basin has been assessed on the basic of statistic analyses of data observed duri...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 414 | Lượt tải: 0

  • Research on wave regimes at the Cua Dai estuary, Quang NamResearch on wave regimes at the Cua Dai estuary, Quang Nam

    Abstract In coastal area of the Cua Dai estuary - Quang Nam province, the processes of erosion-accretion strongly occur. Over this area, the ocean wave is a dynamical factor that directly affects the coastal areas causing erosion-accretion processes. This paper presents an evaluation of the ocean wave regime impacting the areas of Cua Dai estua...

    pdf8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 427 | Lượt tải: 0