Các tác động môi trường của dự án nạo vét duy tu tuyến luồng tàu định an cần thơ (khu vực tỉnh trà

Hgi nghi Khoa hgc vd Cdng ngh^ bien loan qudc Idn thic V

CAC TAC DONG MOI TRlTcyNG CUA DlT AN NAO VET DUY TU

TUYEN LUONG TAU DINH AN - CAN THO

(KHU vy c TiNH TRA VINH)

Bui Trong Vinh'\ Huynh Trung Tin''

Nguyen Xi£m Bang^', Td Quoc Huy^*

1) Khoa Ky thuat Dja chit va Ddu khi, Dai hpc Bach Khoa Tp.HCM. 2) Cdng ty T>JHH

Dia chit vd Mdi trudng Ddt Viet, Tra Vinh

Email: btvinh(a).hcmut.edu.vti hogc biiilronevinh^gmail.com

Trong nhimg ndm gdn day. viec ngo vet duy tu luong tdu vd khai thdc tdi

nguyen viing cira sdng ven bien diin ra rdt mgnh Hit. Tuy nhien, cdng tdc diiu

tra vd ddnh gid tdc dgng moi tricdng cua cdc hogt dong ndy cho den nay vdn

chica dic(xc thuc hien nghiim tiic. Tuyen luong tdu Dinh An - Cdn Tha (khu vice

cira sdng ven biin tinh Trd Vinh) hdng ndm bf bdi Idng do trdm tich tic song

Hdu do ra dd gdy kho khdn rdt lan cho cdc tdu van tdi luu thong qua khu v(fc

ndy. Du dn ngo vet duy tu tuyen luong tdu Binh An - Cdn Tha dugrc thuc hi$n

hdng ndm vdi muc dich khai thdng luong, tgo diiu ki^n thugn Igi cho cdc tdu

cd tdi trgng lan cd the luu thdng ra vdo di ddng hon.

Trong bdi bdo ndy. tdc gid dd su dung cdc phuang phdp ddnh gid tdc ddng

mdi trudng tic cdc hogt dgng ngo vet vd di ra cdc chuong trinh qudn ly hgp. ly

mdi trudng khu vice. Bin cgnh do. phuong phdp md hinh sd dugc sic dung di

ddnh gid tdc dgng ciia sdng vd ddng chdy tdi moi trudng khu vice sau khi ngo

vet. Kit qud cho thdy, sau khi ngo vet ludng tdu, chdt luong mdi trudng cUng

nhu he sinh thdi se bi thay ddi nhung khdng ddng ke.

ENVIRONMENTAL IMPACTS OF THE PROJECT OF DREDGING AND

MAINTAINING DINH AN - CAN THO SHIPPING CHANNEL (TRA VINH AREA)

In recent years, the dredging of navigational channel and resource

exploitation in coastal areas have been carried out increasingly. However, the

investigation and the environmental impact assessment of these activities have

not been done yet. Early Dinh An - Can Tho navigational channel (the section

of Dinh An river, Ben Tre province) has been deposited severely by sediments

from Hau River, caused an obstacle of navigation operating. The project to

dredging Dinh An - Can Tho navigational channel has been carried out

helping heavy ship to travel through easily.