doi vai vung san xuat nong nghiep kiem soat lu sam va vung ducrc bao ve IQ chinh vu de CO bien phap iing pho tinh huong khan cap vung lii bien giai.
,* De tai Nghien cuu giai phap khai thac sir dung hffp ly nguon nu'dc tyffng thich cac kich ban phat trien cong trinh ff thirffng luu 6k phong chdng ban ban va xam nhap man fr Bong bang song Cu-u Long (Ca quan chu tri: Truang Dai hgc Thuy igi - Ca sa 2, B6 NN & PTNT; Chu nhiem d^ tai: GS.TS. Nguyin Quang Kim).
Muc tieu cua de tai
- Danh gia tac dpng cua cac yeu to thugng luu d6n dong chay hien tai va tuang lai;
- De xuat chien luge phong chong hah va xam nhap man a Dong bang song Cuu Long (DBSCL) ung vai cac kich ban khai thac thugng luu;
- Danh gia tac dgng cua he thong cong trinh cong dap quy mo lan ngan ciia song MeKong;
- De xuat cac giai phap quan ly van hanh he thong cong trinh kiem soat dong chay hgp ly, hieu qua phat tri6n kinh te xa hgi cr DBSCL.
Kit qud va irng dung
De tai da danh gia dugc cac boi canh phat trien trong tuang lai trdn luu vuc c6 thd gay ra cac tac dgng bat Igi tren DBSCL va thiet lap cac kich ban phat trien thugng luru phu hgp vdi viec danh gia cac anh hucmg ciing nhu dinh huong giai phap theo cac viing khong gian, thdi gian va kha nang sii dung hiep dinh MeKong de can thiep trong cac trudng hgp bat lgi. Da thiet lap dugc cac td hgp cac kich ban phat trien thugng ha luu cung nhu viec thiet lap cac bg mo hinh phiJhgp de danh gia su dung nudc cung nhu cac thay ddi ve so Iugng nudc ve DBSCL theo cac kich ban. Danh gia tac dgng theo toan canh biic tranh ve nudc tren DBSCL ndi rieng va luu vuc song MeKong ndi chung
•i * De tai Nghien ciru danh gia suy thoai moi truffng trong qua trinh chuyen doi dat nong lam sang nuoi trong thuy san 6* cac huyen ven bien Dong bang song Ciru Long va de xuat cac giai phap su dung ben vung tai ngUyen dat (Ca quan chu tri:
Vien Khoa hoc Thiiy Igi MiSn Nam, Bo NN&PTNT; Chii nhiem de tai: ThS. Nguyin Van Lan).
Muc tiiu ciia de tai
Bao ve, khai thac va sir dung hieu qua vung dat chuyen ddi tCr san xuat ndng lam nghiep sang NTTS ven bien DBSCL, phuc vu phat triSn hai hoa, ben vGng ndng - lam nghiep - thuy san, gdp phan phat trien ben viing khu vuc DBSCL va ca nudc. Da tap trung vao 03 muc tieu cu the la :
- Xac dinh hien trang va dien bien sii dung tai nguyen, moi trudng trong chuyen ddi dit nong Iam nghiep sang nudi trdng thuy san cac huyen ven biln DBSCL;
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- Phan tich, danh gia va dy bao cac tac' ddng cia vide ehuyen ddi dat ndng iam sang nudi tring thm" san tdi mdi trudng dat ddn nam 2020;
- Dd xudt vdi cac co quan quan ly dja phuong cac giai phap su dung bdn -vuug tai nguydn ddt d cac huyen ven biln Ddng bang sdng Ciu Long.
Ket qua vd ifng dttng
- D I tai da thu thap, khao sat bi sung eac du lieu;_Phan vung sinh thai vung NC;
Thu thap va phan tieh miu xac djnh ehdt lugng nudc, ddt phuc vy cac npi dung nghien euu tidp thep.
- Danh gia thyc trang suy thoai mdi trudng (STMT) dinh tmh va dinh luong viing chuyin dii ddt ven biln (ddt, nudc, he sinh thai va xa hdi); Xac dinh nguyen nhan gay STMT va tac ddng cua STMT ddi vdi kinh tl, xa hdi -vimg nghidn euu; Thilt lap cac tieu chi phyc vu danh gia mdi trudng nudc, ddt, he sinh thai va xa hgi. Dd tai khang djnh STMT nudc la nang tuy nhidn nhd lgi thi eiia DBSCL ndn kha nang phuc hii chdt lupng nudc sau mia mua hoac sau kM nghi mdt vu nudi la rat tot. STMT dat cung didn ra nang (tich My man va chai ciing), thdi gian phuc hdi kha lau phai mat ttr 2 den 5 nam de cd the canh tac. STMT he sinh thai la fram frpng (dac bidt la rimg ngap man ven bidn) phai mat thdi gian lau tu 5 nara den 10 nam mdi hdi phyc.
- Dy bao tac ddng ldn mdi trudng dat vung ven bien do qua trinh chuydn ddi dat sang NTTS ddn nam 2020. Trdn ca sd cac kd hoaeh phat trien kinh td, xa hdi, cac kjch ban khai thac tai nguydn nudc thugng ngudn MdKdng; S i dung cdng cu md hinh thuy luc MIKE 11 tinh toan dy bao. Kidn nghi dimg ehuydn dii dat sang NTTS tir nay ddn 2020.
- D I xuat cac giai phap su dung bdn vttng tai nguydn dat ving ven bidn DBSCL gdm (i) Giai phap quy hoach he thdng cdng trinh cap thoat nude,; (ii) Giai phap xay dung cdng trinh theo hudng cap thoat tach rdi tu ao nudi, ndi ddng den kdnh cap 2,3. (iii) Giai phap thu gom, xu ly chat thai ldng, ran; (iv) Giai phap nang eao trinh do cua ngugi dan; (v) Giai phap nang cao hidu lyc quan ly nha nudc; thyc thi phap Mat.
- Hoan thanh dd xuat eac giai phap cy thd nham eai tao va s i dung hieu qua vung dat NTTS bj man boa tai VTnh Hau (Hoa Binh-Bae Lidu)- 4 md hinh; Ving ddt suy thoai do thidu cdng trinh tai xa Luong Thi Tran (Cai Nu6c-Ca Man)- 3 md hinh.
- Thidt kl quy hoach 3 md hinh mdu phuc vy NTTS bin vung tai Hdn Ddt - Kien Giang, Duydn Hai - Tra Vinh va Binb Dai - Bin Tre; 3 md hinh da duge phe duyet ciia dia phuong va dua vao phuc Mi san xudt (Cd xae nhan eua dja phuang v l san phdm da dupe ling dung vao san xuat).
Ifng dung kel qud nghien ctiu vdo thirc lien sdn xudt:
- Ung dung 3 md hinh "Quy hoach he thing edng trinh thiy Igi phyc vu phat ttiln bdn vung md hinh NTTS" cho 3 huyen Hdn Bdt (KG), Duydn Hai (TV), Binh Dai (BT) (Ba dugc UBND cac tinh phd duyet va duge cac dja phuong chdp nhan ung dung vao san xuat).
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- u'ng dung 4 md hinh cai tao, khai thac hidu qua vung dat bj suy thoai do nhiem man nang tai VTnh Hau, Hoa Binh, Bae Lieu. LTng dung 3 md hinh vd giai phap cau true d rudng, cap thoat nudc cho vung ddt bj suy thoai do edng trinh bat hpp Iy tai Cai Nudc (Ca Mau).
* Dd tai Nghien cuu danh gia kha nang chiu tai cac he sinh thai de lam cff sd cho quy hoach phat frien, bao ve mdi trudng luu vuc sdng Vam Cd (Co quan chu tri dd tai: Vien Khoa hgc Cdng nghd & Quan ly mdi frudng, Trudng BH Cdng Nghiep Tp. Hd Chi Minh; Chi nhidm dl tai: GS.TSKH. Le Huy Ba)
Muc lieu cua di Idi
- Danh gia dugc nguydn nhan va didn bidn cac he sinh thai dudi tae ddng cia cac phuong an phat triin kinh t l xa hdi trdn luu vyc.
- Xac djnh duge kha nang chju tai eua cae he sinh thai then ehdt lam co sd cho quy hpach phat tridn kinh te xa hpi theo hudng ben -vung.
Kel qud vd irng dung
De tai diiu tra, phan tich va danh gia hidn trang va didn bidn tai nguyen, mdi trudng va cac he sinh thai trdn luu vyc. Tinh toan sue chiu tai cua toan bd he thdng sdng Vam Cd va tinh toan thi diem mpt he sinh thai nudi trdng thuy san, kdt qua tinh toan lam ca sd xem xet mirc dp phat triin nudi trdng thuy san trdn luu vyc. Dd tai da xay dyng danh myc cac Dy an tidn kha thi uu tidn dd giai quydt. Y nghia khoa hpe cia dd tai la md ra mdt hudng tidp can mdi trong quy hoaeh phat tridn; Dd xuat md hinh quan ly tdng hgp luu vyc sdng Vara Cd; Xay he co sd du- lieu vd luu vyc sdng Vara Cd.
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