I KHOAHOC j ^ B S B I B i B W
NGHIEN c i r u QUA TRINH LAN T R U Y E N NGUON NlTdC TRONG KENH DAN VUNG TRifiU (TRU^CKNG HOfP XET VOfI
BIEU KIEN CHIEU DAI KENH THAY D 6 I )
ThS. Nguyen Dinh Vugng Vien Khoa hgc Thuy lgi mien Nam Tom tat: Bdi bdo ndy trinh bdy kit qud ung dung ly thuyet lan truyin cdc ngudn nuac trong he thdng sdng kenh (ly thuyit thdnh phdn nuoc) ket hgp sic dung cdng cu tinh todn la phdn mem MIKE 11 di md phdng thdnh phdn nude quan tdm (nude 6 nhiem, nuoc mang mdm benh thiiy sdn,....) lan truyin tren he thdng kenh ddn viing ven bien dnh hudng trieu, xet trong dieu kien thay ddi chiiu ddi kenh nhdnh chua thdnh phdn nude (TPN) quan tdm. Ket qud tinh todn cho thdy ro qud trinh dien bien triet gidm ty le TPN quan tdm tren kenh nhdnh phu thugc vdo chieu ddi kenh chica TPN do. Kenh nhdnh cdng ddi, mice do triet gidm TPN quan tdm tren kenh dien ra cdng chdm dgc biet d viing cuoi kenh, ddy Id mot trong nhimg co sd khoa hgc quan trgng cho viec bd tri thiet ke quy hogch he thong kenh ddn cdc viing nudi trong thiiy sdn ven bien.
Tir khoa: Ly thuyet thdnh phdn nguon nuoc, TPN quan tdm, chieu ddi kenh, viing trieu.
Summary: This paper presents result of water sources component theory application combining with the computing tool as MIKE 11 to model the transport of interested water source components (pollution water, aquaculture disease water, etc.) in the coastal canal network affected by tide regime having considered the case of change in the length of branch channel that contain the interesting water sources component (IVSC). The result showed that the reduction process of WSC belongs to the channel length of containing the interesting WSC. In short, the longer branch canals length, the slower reduction process of interesting WSC, especially the end segment of channel. Therefore, there are the scientific arguments for the arrangement of design and planning on the water supply channel network to the aquaculture of coastal region.
Key words: Modeling transport of water sources component, water interesting sources component, canals length, coastal areas.
DAT VAN DE toan md rpng, ling dyng dac biet trong viec Ly thuyit lan truyin cac ngudn nude trong he "S*"^" ^^ ^^ ? ^ ^^^y ?Ong lye va moi thdng sdng kenh (gpi tdt la ly thuyit thanh phdn ^ ° ^ g ' ^^'^ xet van de b-ao ddi nude ciia cac he nude) da dugc Nguyen An Nien de xudt va *^°"2 ^^^ ^'^^^ ^ ^ ^^°^g trilu,[5], [6], [7], [8].
dugc phat biin bdi Nguyin An Nien, Tang Dire Trong nghien ciiu nay, vi|c img dung ly thuyit Thang va nhimg ngudi khac, xem thanh phdn ngudn nude vao tinh toan mo [1M2],[3],[4]. Hien ly thuyet nay dang phat phdng qua trinh diin biin trilt giam ty le thanh tnen rat manh va la cdng cu ket hop md hinh phdn nude (TPN) quan tam tren kenh'nhanh
• ling voi voi chieu dai kenh nhanh thay doi Ngirai phan bien: GS.TS Tang Dire Thang (L„j,„, = 5; 10; 15 km) se cho thIy ro dac tinh Ngay nh,„ bai: 15/9/2014 ^^^^ ^ . , ^ , ^ - j ^ ^ , -^
Ngaythongquaphanbien:a2/10/2014 - ,'. ... , .. 6 "9 mong Kenn Ngay duyet dang: 13/10/2014 '^^ "'""S qua tog thai nguon nugc. Day
36 TAP CHl KHOA HOC VA C O N G N G H E THUY t O I S(5 23 - 2014
KHOA HOC ^ ^ E ! 3 ! B i ^ B ciing la mdt trong cac co sd khoa hgc quan
trgng cho viec bd tri thiet ke cac he thong thuy lgi phuc vy nudi trdng thuy san ven bien.
2. PHirONG PHAP NGHIEN ClTU Tac gia da ling dung ly thuyet lan truyen cac thanh phan ngudn nude ket hgp vol phan mem MIKE11,[9] de tinh toan md phdng lan truyen TPN quan tam trong kenh din viing trieu.
"TPN quan tdm" dugc de cap trong nghien ciiu nay la TPN xem xet tren kenh ddn (nude man, nude ngpt, nude d nhiem, nude mang mam benh thuy san,...) vimg nghien ciiu.
Khai niem ngudn nude va ty le ngudn nude Xet mot the tich nude "dw" trong ddng chay do cac the tich ngudn nude thanh phan dwj tao nen, xem Hinh 1. Ty le thanh phan ngudn nude i (pi) tai diem M d tbdi gian t dugc dinh ngbia la:
Pi(M,t)= -'> vdi cac dieu kien : Xpi =U
dw i=!
0<pi< 1;
Trong bai toan mdt chieu (ID): p.(M,t)
dw 3
^ - «
^ + ^ +
dw, -|- dw2 + Q
®-|--
d w 3 - | - •••
Hinh 1: So hoa khoi nuac "dw" vd cdc nguon nude thdnh phdn "dw," cua nd H? phucmg trinh co ban Ian truyen mot thanh phan nuoc bat ky bao gom cac phuong trinh thiiy lire (phucmg trinh lien tuc va phuong trinh chuyen dong cua toan dong) va phuong trinh bao ton thanh phan nuoc, xem [2],[3],[4]:
5m 5Q
a Sx
q = 0 (1)15v av 5v 9z , I I . „ . + + — + k v v = 0 (2) g St g 9x 9x
* i + v * ^ - l ^ D , a > * - a ( p , _p,)=0 (3) 6t Sx o)5x & CO
i = 1, n (n - sd thanh phan ngudn nude trong he thdng)
trong do
pj: Thanh phdn ngudn nude i; v :Lim tdc trung binh mat cat;
(o: Dien tich mat cat; Z): He sd khuech tan rdi;
qi - q-piq la ty le dong gia lihap ben cua ddng thanh phan i.
Dieu kien bien, dieu kien ban dau:
Dieu kien bien gdm bien thuy luc va bien ty le ngudn nude.
Dieu kien ban dau cung bao gdm cac dieu kien ban dau ve thuy luc va ngudn nude.
Cach giai, cac cdng cu tinh toan:
Giai nhu phuong trinh truyen chat thdng thuong.
Sii dung cac phan mem tinh toan truyen chdt dl giai (MIKE, SAL, KOD, ISIS...).
3. KET QUA NGHEEN CUtJ VA THAO LUAN a. Thiet lap bai toan
Xet mot so do tinh don gian nhat cua he kenh thuong gap trong thyc te (kenh chinh va kenh nhanh - kenh don 1 dau ddng), xem Hinh 3a.
Dat bai toan vdi cac thdng sd quy md kich thuoc he kenh va dieu kifn bien thuy lye ngudn nggt Q =5 m"'/s, xem Bang 1.
De don gian boa trong qua trinh nghien ciiu ta gia thiet bien muc nude Z(t) dimg dl tinh toan la trieu bien ddi dIu : (i) Mdu trilu dIu "Dang 1", cd dang gidng trilu bien Ddng (bien dp Idn dang chii M) va (ii) Mau trieu deu "Dang 2" gidng vdi trieu bien Tay (bien do nhd dang chu W).
Trieu deu "Dang 1" va "Dang 2" de cap tren day dugc thiet lap bdng each chgn dai dien 1
TAP CH[ KHOA HOC VA C O N G N G H £ T H O Y L O I S6 23 - 2014 37
:
KHOA HOCcon trilu trong 1 ngay bdt ky cd tinh chat dac mdt each tuan hoan va gidng nhau ve cudng trung muc nude gilng bien do trilu bien dp len xudng, khi dd ta dugc chu ky giao Dong va trilu biin Tay, con trilu dai dien dd ddng muc nude trieu khong ddi theo tbdi dugc keo dai cbudl so lieu bang viec lap Iai gian, xem Hinh 2.
Bang 1: Thong so ve quy md kich thirdc kenh
Cong trinh Kenh chinh cdp I (MainBranch) Kenh nhanh cap 2 (I dau dong - kenh cut)
L(km)
35 5,10,15
B(m)
35 5
Zday (m)
-3.5 -1.5
Khoang each kenh nhanh so vdi bien Xk (km)
7
Ghi chii Kenh mat cdt
cbii' nhat Kenh mat cat
chii nhat
; MN trieu deu "Dang 1 MN triju dSu "Dang 2"
Hinh 2 : Bieu do muc nu&c trieu biin doi diu "Dgng 1" vd triSu "Dgng 2 "
b. Dieu kien tinh toan
- Viing chiia TPN quan tam dugc gia thiSt nhu Hinh 1, la toan bp khoi nude n4m tren kenh nhanh.
- Xac dinh diiu kien bien, diiu kien d4u cho bien TPN quan tam nhu sau :
• Dieu kien bien (TPN quan tam tai bien): Pb
= 0
•Diiu kien dau : Pd = 1 (100%) (vimg chiia TPN quan tam - kenh nhanh);
Pd = 0 (viing khong chiia TPN quan tam - kenh chinh).
- Mo hinh toan thuy luc su dung phin mhm MIKE 11 da dugc thiit lap can chinh tot. Tai thoi diim bat dju tinh toan, ty le thi tich khii nuoc chiia TPN quan tam tren kenh nhanh so voi the tich nuoc trong he thong khoang 1,2%
(Lnhanh = 5km), 2,4% (Lnhtai, = 10km) va 3,5%
(Lnlianh= 1 5 k m ) .
- Thoi gian mo phong lan truyin TPN quan tam bit diu tir 12 gia ngay 5/1/2005.
38 TAP CHl KHOA HOC VA C O N G N G H E T H O Y LOI S 6 23 - 2014
KHOAHOC M S ] M ! B i ^ B
tlz(t)
TWJ • M.200S 12 W M AD_Tm_Lnnjnni rg
V4ng chiia TPN
^
a). So do kenh chinh va kenh dan 1 nhanh
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T P t i - 5 - 1 - 2 O 0 5 l 2 0 0 M A
i . _ „ , —
= 5km
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d). Lnhinh= 15 km c). Ldmi,= 10 km
Hinh 3: Sa do he kenh ddn viing trieu, cdc trudng hap chieu ddi kenh nhdnh chiea TPN quan tdm ban ddu truac khi lan truyen (mdu den)
c. Ket qua tinh toan mo phong lan truyen TPN quan tam tren cac kenh nhanh
Kit qua tinh toan mo phong dugc trinh bay trong cac Hinh 4 den 19, tri so trong hinh la ty 1? TPN quan tam, tinh theo ty le % so
vol toan bo the tich khoi nuoc chiia TPN quan tam.
• Thay ddi TPN quan tdm tren cdc kenh nhdnh ung vdi trieu bien doi deu "Dang 1"
(bien do Idn cd dang trieu bien Dong)
TAP C H l KHOA HOC VA C O N G NGHE T H O Y LOl SO 23 - 2 0 1 4
KHOA HOC ^ E S B I B i I ^ B
5km Hinh 4 : Thay ddi ty le TPN quan tdm theo thoi gian tgi MC500
tren cdc kenh nhdnh, xet vdi trieu deu "Dgng I "
Bieu do bien do tnet giam TPN Ion nhat theo thoi gian tren kenh nhanh tai MC 500 img chieu dai kenh nhSnh thay dfii
Hinh 5: Bieu dd thay ddi bien do TPN lan nhat theo thai gian tgi MC500 tren 3 kenh nhdnh, xet vdi triiu diu "Dgng I"
5km Hinh 6: Thay ddi ty le TPN quan tdm theo thai gian tgi vi tri
giiia cdc kenh nhdnh, xet vdi trieu deu "Dgng 1"
4 0 TAP CHl KHOA HOC VA CONG NGHE "mOY LOl S 6 23 - 2014
I KHOAHOC ^ t t . l J l e l J M ! ! : ^
Hinh 7 : Thay doi ty le TPN quan tdm theo thai gian tgi vi tri cudi cdc kenh nhdnh, xet voi trieu deu "Dgng I"
• Thay ddi TPN quan tam tren cac kenh nbanb ung vdi trieu bien ddi deu "Dang 2" (bien do nhd cd dang gidng bien do trieu bien Tay)
dalheolhoigentaiMCSOO
IllllllllHiliiilliiiliiiniiinii..
a 5km = 10km : Lnhanh - 5km
Hinh 8 : Thay doi ty le TPN quan tdm theo thoi gian tai MC500 tren cdc kenh nhdnh, xet vol trieu deu "Dgng 2 "
TAP CHl KHOA HOC VA CONG NGHE T H O Y LOI SO 23 - 2014
KHOA HOC ^ E B M S B T M !
T y l e TFtJ quan tam Hen fcenhnli.
:Lnhanh^ 15 km • Lnhiinh^ 10km ; Lnhanh " 5 k m
Hinh 9: Thay ddi ty le TPN quan tdm theo thai gian tgi vi tri giita cdc kenh nhdnh, xet vdi trieu deu "Dgng 2 "
™(.
E
I,HP»,.,.l,««nl,nl,.hrtb..*l.«U«„.nl„MC»«>tl,.h.n..h
--^--- -,---
: - X J - - ! - ' "" y ^^'S-....^^""" ;"""" ; r~~~^r—iii;___^^
»,.- .>,. „ „ „ _ ™ „ „ ,„„ ,.._ „ _ ,^_ ^ ^ ^^ ...;;.~J
- e r o tmniiumi -BR? SOODOOm
:Lniidnh= 15km L n h a n h - 1 0 k m : Lnhanh = 5km
Hinh 10: Thay doi ty le TPN quan tdm theo thai gian tgi vi tri cudi cdc kenh nhdnh, xet vai trieu diu "Dgng 2 "
• So sanh thay d6i ty le TPN quan tam tren kenh nhanh xet vdi bien do tri6u d6u "Dang 1" va
"Dang 2 " (trudng hgp L„h4„h = 5km)
42 TAP CHl KHOA HOC VA CONG NGHE T H O Y LOI S 6 23 - 2014
KHOA HOC ^ ^ S ! 3 ! B i ^ B
imTyle TPN quan lam Ben kertirtianh b a t doi theo ben aolfieutaMCSOO
: TPN - trieu deu "Dang 1" TPN - trieu deu "Dang 2 "
Hmh 11: Thay doi ty le TPN quan tdm theo thai gian tgi MC500 tren kenh nhdnh L„i,6nh = 5km, xet voi trieu deu "Dgngl" vd "Dang 2"
Tnei ^amTy le TPfJqL
: TPN - trieu deu "Dang 1" - : TPN - trieu deu "Dang 2 "
Hinh 12: Thay doi ty le TPN quan tdm theo thoi gian tgi vi tri giica kenh nhdnh L„hanh ^ 5km, xet vdi trieu deu "Dgng I" vd "Dgng 2 "
TAP CHf KHOA HOC VA C O N G N G H ? T H O Y L O I S 6 23 - 2014 43
KHOA HOC ^ E i S B I B i l ^ B
™l%l
••
„.
• "
...
,„ipn
Ttiel gom Ty le TPN quai tam tr
1 \
( . 1 . . . . ...
en kenh nh nnbeti loplheobianflolrieulaiMC CUOI kenh
-'\: \ ^ '-
^ ^ ^ - - ^ - ^
^'^""--^
nhanh
: TPN - trieu deu "Dang 1" -: TPN - trieu dSu "Dang 2"
Hinh 13: Thay ddi ty le TPN quan tdm theo thai gian tgi vi tri cudi kenh nhdnh Lnhanh = 5km, xet vai trieu deu "Dgng 1" vd "Dgng 2 "
• So sanh thay ddi ty le TPN quan tam tren kenh nhanh xet vdi bien do trieu deu "Dang 1" vj
"Dang 2" (trudng hgp Lnhanh = 10km)
JMXkHiAAAAjtJU.
: TPN - trieu diu "Dang 1" TPN - trieu deu "Dang 2"
Hinh 14: Thay ddi ty le TPN quan tdm theo thoi gian tgi MC500 tren kenh nhdnh Lnhanh = 10km, xct voi trieu bien ddi deu "Dgng I" vd "Dgng 2 "
4 4 TAP CHf KHOA HOC VA C O N G N G H £ T H O Y LOl 5(3 23 - 2014
KHOAHtJC M l | III III I.IM
: TPN - trieu deu "Dang 1" TPN - trieu deu "Dang 2"
Hinh 15: Thay ddi ty le TPN quan tdm theo thai gian tgi vi tri giiia kenh nhdnh Lnhanh = 10km, xSt vol trieu bien ddi deu "Dgng 1" vd "Dgng 2 "
: TPN - trieu deu "Dang 1" TPN - trieu deu "Dang 2"
Hinh 16: Thay ddi ty le TPN quan tdm theo thai gian tgi vi tri cudi kenh nhdnh Lnhanh ^ 10km, xet vai trieu bien ddi deu "Dgng I" vd "Dgng 2 "
• So sanh thay ddi ty le TPN quan tam tren kenh nbanb xet vdi bien do tri8u biin ddi deu
"Dang 1" va "Dang 2" (trudng bop Lnhanh = 15km)
TAP CHf KHOA HOC VA C O N G N G H E T H O Y LOI S 6 23 - 2014
I KHOA mc~
: TPN - trieu deu "Dang 1" •; TPN - trieu deu "Dang 2"
Hinh 17: Thay ddi TPN quan tdm theo thai gian tai MC500 tren kenh nhdnh L„M„h ~ 15km
• TPN - trieu deu "Dang 1' : TPN - trieu deu "Dang 2"
Hinh 18: Thay doi ty le TPN quan tdm theo thai gian tgi vi tri giiia kenh nhdnh Lnhanh = 15km xct v&l trlcu bien doi diu "Dgng 1" vd "Dgng 2 "
46 TAP CHl KHOA HOC VA CONG NGHE THUY LOl 5(3 23 - 2014
I KHOATIOC ^EJSBJBII^B
: TPN - trieu deu "Dang 1" TPN - trieu deu "Dang T Hinh 19: Thay doi ty le TPN quan tdm theo thai gian tgi vi tri cudi kenh nhdnh
Lnhanh = 15km xct vol tHiu bien ddi deu "Dgng 1" vd "Dgng 2 "
Nhdn xet:
Tu ket qua tinh toan md phdng d tren, cd thi nit ra mot sd nhan xet nhu sau:
Kenh nhanh cd chieu dai ngan thi ty le triet giam TPN nhanh hon, chang ban xet cu the tnidng hop ung vdi trieu deu "Dang 1" cd bien do gidng trieu bien Ddng :
• Tai MC500 dai dien cho cac vi tri phia dau cac kenh nhanh, xem Hinh 4. Tbdi gian triet giam ty le TPN quan tam tren kenh nhanh xudng cdn 0,5% se phai mat sau 8 ngay (ddi vdi Lnhanh=5km); sau 30 ngay (Lnhanh=10km);
sau 3 thang (Lnhanh"15km).
• Tai vi tri giua cac kenh nbanb, tbdi gian triet giam ty le TPN quan tam cdn 0,5%
(trudng hgp Lnhanh=5km sau 10 ngay;
Lnhanh^lOkm - sau 40 ngay; Lnhanh=15km - sau 4 thang), xem Hinh 6.
• Tai cac vi tri cudi cac kenh nbanb, tbdi gian triet giam ty le TPN quan tam xudng cdn 0,5%
(trudng hop Lnhanh=5km - phai mdt sau 12 ngay; Uhanh^lOkm - sau 45 ngay; Lnhanh=15km - sau 4,5 thang), xem Hinh 7.
• Triet giam TPN quan tam tbeo tbdi gian tai cac vi tri giua kenh nbanb, sau 10 ngay md phdng (Lnhajih^5km - TPN triet giam cdn 0,5%; Lnhanh^lOkm - TPN triit giam cdn 26%;
Lnhanh^l5km - TPN triet giam cdn 63%), xem Hinh 6.
Kenh nbanb cang dai, muc dp triit giam TPN quan tam tren kenh diin ra cang cham.
Phia cudi kenh nhanh miic dp triit giam TPN quan tam cham hem tai cac vi tri dau kenh.
Dpc theo chieu dai kenh nhanh, muc do triit giam ty le % "TPN quan tam" ung vdi bien trieu bien ddi deu "Dang 1" (bien dp Idn dang trieu bien Dong) nbanb hon bin so vdi trudng hop trieu deu "Dang 2" (bien dp nhd dang triiu bien Tay). Diin binh nhu tai mat cat MC5000 giua kenh nbanb Lnhanh^lOkm, thdi gian triit giam ty le TPN quan tam xudng cdn 1% (trieu deu "Dang 1" phai mdt sau 1 thang, triiu diu
"Dang 2" can sau 3 thang), xem Hinh 15.
4. KET LUAN
Kenh dan cac vung nudi trdng tbiiy san kbdng nen thiet ki qua dai, kenh dai gay kho khan trong viec thau rua d nhilm phia trong kenh.
TAP CHf KHOA HOC VA C O N G N G H E THUY LOl S 6 23 - 2014
I KHOA HOC
kha nang tieu benh khi xay ra la rjt kem. Qua trinh lan truySn "TPN quan tam" trong .X. , • 1 - 1, J- kenh dan vung tri4u xet voi diSu kien chieu dai Qua trinh trao doi nuoc ttong cac kenh dan .?. ,. . , , . . „ KIS„ trls,,
^ , . ! „ . , . .--A' kenh thay doi ung vol 2 truong hgp bien trieu vimg ven bien Dong (tuong ung ttieu deu . ^ ,= .,„ , .i,- •- • vung «cii uic, s V, 6 s ^ jj.jj „jj j„ ^^ „p 2" cho thay viee ung
"Dang 1") nhanh hon han so vol vung ven .u- i, - i-'.if «. i .„,„s„ ti,i„i, .• ^ ' , . „ .,,„ , , dung thanh cong ly thuyet lan ttuyen thanh bien Tay (tneu deu Dang 2 ), do vung ven •.° > ° ' . . ., i .; >..
. ' ^ , . , . •.! ,. . t- , -a. phan nguon nuoc ttong he thong de nghien bien Dons CO bien do tneu Ion, muc do tnet '^, . . . ^. . . . >
"* -..^ , , . . . cuu cac dac tinh, dong thai cua nguon nuoc giam TPN quan tam dien ra nhanh, qua trmh .. ' . 'u-- *- i-
'^ . , i i . . ,. , .:,. - quan tam vung ven bien, day la co so quan thau rira he thong tot, day la vung CO kha nang ^ . . i. •- .i,-«. i « u i, i,- . •. ^ , ' , ; , . , . trong dam bao cho viec thiet ke quy hoach he nuoi trong thuy san nuac man, lo rat thuan Icfi. • '^
thong thuy Igfi cac viing nuoi tom hop ly.
TAI LIEU THAM KHAO
[1] Huynh Chile (2012), "Nghien ciru ca sa khoa hoc ddnh gid vd qudn ly chdt luong nude cdc diim nguon cdp nuac sinh hogt tren song Sai Gdn thuoc he thong sdng Dong Nai\ Luan an Tiln sT ky thuat - Vien Khoa hoc Thuy lgi mien Nam.
[2] Nguyin An Nien (1997), "Vi mot bdi todn dinh xudt xir cua khoi nuac (ung dung cho Dong bdng sdng Ciru long ", Tuy^n tap kk qua NCKH, Vien Khoa hgc Thuy lgi mien Nam, NXB Nong nghiep, TP. Ho Chi Minh.
[3] Tang Due Thang (2002), 'Nghien cim he thong thuy loi chiu nhieu nguon nuac tdc dong - Vi du ung dung cho Bdng bdng Sdng Cim Long vd Dong Nam Bo", Luan an Tien sT ky thi4t - Vien Khoa hoc Thiiy lgi mien Nam.
[4] Tang Due Thang, Nguyen An Nien (2012), "Bdi gidng ly thuyit lan truyin cdc thdnh phdn ngudn nude trong he thong sdng kenh ", Vien Khoa hpc Thiiy lgi mien Nam.
[5] Tang Diic Thang, Nguyen An Nien (2004), "Tinh toan thanh phin ngu6n nuoc, nhimg phat tri& moi va mo rong ling dung", Tuyen tap kit qud KH&CN Vien Khoa hoc Thuy Iai miin Nam ndm 2003, Nha xuat ban Nong nghiep.
[6] Tang Diic Thang, Nguyin An Nien, Nguyen Dinh Vugng, Nguyen Diic Phong (2008), "Mot so van de ky thuat khi thife ke cac he thong thuy lgi phuc vu nuoi trdng thiiy san ven bien", Tuyen lap ket qud KH&CN Vien Khoa hoc Thuy Iai miin Nam ndm 2008, Nha xuSt ban Nong nghiep.
[7] Tang Diic Thing (Chu nhiem, 2003-2005), Dg tai trgng diSm Bg NN&PTNT: Nghien cim cdc gidi phdp khoa hoc cdng nghe ddnh gid vd qudn ly ngudn nude he thdng thuy loi co cong ngdn man vd de xudt gidi phdp khdc phuc 6 nhiim a Ddng bdng sdng Ciru Long, Vien Khoa hgc Thuy lgi mife Nam, TP. H6 Chi Minh.
[8] Tang Diic Thing (Chu nhiem, 2009-2012), De tai Doe lap cip Nha nuoc: Nghien cim giai phdp thiiy Iai phuc vu phdt triin bin viing viing Bdn ddo Cd Mau, Nien Khoa hgc Thuy lgi miSnNam,TP.H6ChiMinh.
[9] MlKEl 1 (2011) - Users' Guide (Huong dan sit dung).
48 TAP CHl KHOA HOC VA CONG NGHE T H O Y t O I S(3 23 - 2014
