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'flini hull I>•''•• 'I Diu chdl u( Diu vdi iy Bien
HIEN TRANC; XOI LO - BOI TlJ TAI CAC CUA SONG VEN BIEN TiNH P l i u YEN
Pham Ba Trun<;, Le Dinh Mau Vien 1 lai duong hgc. 01 Cdu Da. Nba Trang
Tom (:it:
Bui bdo Irinh biiy kit qua nghiin cicu vi hiin trgng cdc qud trinh xdi hr - bdi tu tui ciic cuu .sdng ven bien linh Pbu Yen Sd heu vi .su biin ddi diiTmg bd dinrc ldy tic kil qua cdc chuyen khuo sdt thirc diu clo Tien Hui dinrng hoc chu Iri Kil qua nghien tuu chu ihdy rdng. dirdng bd lui cdc cua .sdng cuu ttnh Phii ) in hi xdi ler trong thin ky gid miiu Ddng hue vd dicc/c bdi tu irong thi)i ky gid miiu Tdy Xuni cirdng do cuu xdi hr Inn hun cice'mg do cuu bdt tu Qud trinh ddng nnr aru .-In llai du tdc ilgng nghiem irong din diiu kiin mdi trircmg bin tiling ddm (') l.oun. Hien nuy. mdt so ciru sdng tui Phu Yin du dwoc xdy dung cdc cdng irinh buo ve nhirng bieu qua cuu vice buo ve mung lui rut ihiip
\V: S'lAfUS 01' I - : R 0 S 1 0 N - ACCRl-flON IN THL COAS'fAL l':S 1 UARII-S Ob PIUJ YLN PROVINCE
Pham Ba Trunj;, Lc Dinh .Mau Abstract:
This paper piesenls the stuliis of erosion-depo.siiionprocesses in und uroiind river mouths of Phu Yen Province eoust The dutu on shoreline change hud been taken from fhe result of field investiguiion and .scientific reports oj dilfeicnt pi-o/ecl.s. which curried out by Inslilule of Oceunogruphy Sludy results show ihat the coastline in und uround river moulhs of Phu Yen Province were eioded during \K monsoon period and accreted during SW monsoon period but the magniiude of erosion is larger thun that oj the accretum The environmental condilion in Oloan Lagoon had been affected seriously by the opening closing phenomenon of .-in llai Inlet. At present, the piotetted structure uorks hud been built for a number of river mouths of Phu Yen province, however the protection effect n as not high as u e expected
MC) DAIJ
Deri bir bien gdm viing cua sdng, vung vinh, dam phd ndi chung va ddi \'cn bien linh Phil Yen noi rieng ludn ebiu tdc ddng cua rat nhieu >'eu lo: thiiy ihach dgng Iuc, cdu lao
HOI nghi Khoa hoc vci Cong nghe hien loim c/iuii um ihir I'
dcri bir. hoat ddng Tdn kidn lao, dia hinh ddy. thdnh phdn vdt lieu, ngudn cung cap \'.^t heu. .. Ddng ibtri, song hanh vo'i cdc qua trinh lu nhien la ldc ddng ciia con nguiW [rong khu vuc nlur xdy dung cae thuy cdng irinh. nudi trdng thuy san, khai iliac eac ngudn ldi ngu\cn phi sinh \'di \d sinh \'dt... lac ddng dieu kien mdi truang, canh quan vimg \cii bo nhieu khi gdy nen nhCmg tdn that nang nc \ e ldi sdn ciia nhan dan. do Id qua trinh \di Id - bdi lu. Tai nhidu noi nguiri la da ticn hanh xdy dung nhung edng trinh bao \ c nhu kc chong sat kr bir, bdo \ c ludng lach a eira Dd Rang va Da Ndng....Ben canh eac tdc ddng tich cue ciia eae cdng irinh bao \ e la nhung lde dgng lieu cue nhu ldm thay ddi (.jud irinh Irao ddi nuoc gitta sdng. ddm pha \'d bicn. bdi lap cua sdng Irong thai ky miia khd, .
Do \d>, nghien eiru "lliin trung xdi Id - bdi lu lai ce'ic cua sdng ven bien lmh Phii Yen", dergc dal ra nhdm gdp phdn vao vice dinh hueViig qui hoach \'d phdl Irien ben vfrng dai \'en bien.
[. TAI LIKU \ \ P l l l ' C ) \ ( ; PIIAP 1. Ngudn tdi lieu
- Dd lai cdp Nhd nuae KC-06.08 (1997-2000): "Nghien eiru hicn trang. qui luai \di Id bdi lu dai \en bien vd cua sdng Viel Nam" (Le IMurdc Trinh vd cs , 2000).
-iX-Idl ddc idp edp Vicn KH&CN VN (2007-2009)'"Ddnh gid ldc de)ng eua eat iiucrng song trong gid miia den dai \'en bien Nam "frung Bd tir Phti Yen den Binh "Ihudn \a de xudl eae giai phap gidm nhe Ihicl hai phuc \ u phdt trien bdn vu-ng" (Biii Hdng Long, 2009),
- De ldi cdp Vien KH&CN VN (2008-2009)' "Danh gia nhung ldc ddng eiia cac cdng trinh bao \ c ddn mdi Irud'nu vun^ cira sdng \en bien Nam Trung Bd" (I.e Dinh Man.
2010);
- De ldi edp Nha nuac (2008-2010): "Luan chimg KHKT phuc vu eho QLTII \ii PTBV dai \en ba bien NTB ddp img mue tieu chicn luge phat tridn kinh id bidn". Ma sd;
KC.09.24/06-10 (Bui Hdng Long, 2011):
- Bi) ban do dia hinh ty lc 1:50.000 ciia Bd TN&MT. xudl ban ndm 2004;
2. Phuong phap
- 'fhu'c hicn cac chuyen khdo sal tham djnh tai mdt so viing trgng didm (ehii yeu a phan bir vd eac cua sdng) nhdm so sdnh, ddnh gid cac kdt qua khdo sat thuc le vai kdi qua phan lich dull Vien ihdm.
- Su dung edng nghe dnh \ idn tham vd GIS.
IL KET QUA NGIIIKN CUU 1. Diic diem chung dudng bo" bifn tinh Phu Yen
Ddi bir bien dae irung bcri cac lich lu cira sdng lao thanh cdc bai cdt licIi tu bid,, k.-o dai.
luang ddl thang. dd doc lan. Phia sau cac bai nay Id cae thanh lao tich tu bicn klilu vai bir
\d dun cat eao. keo dai dge iheo ducmg bcr va eae bai cat hicn dai. Cde cira song chmh bao gdm: cua Da Rdng \a Da Ndng (song Ban Thach) Phdn Ian chidu dai bir bien l. ' .'it: bai
fieu bun Diu ly, Diu chcil vd Diu veil lv Bien
cat (bai Tuy Hod, 'fuy Hod - Phii Lam), bai cd chieu ddi lon nhdt Id 15-20 km (bai Tuy Hoa - I'hii Ldm), irung binh 5 - 8 km, thdnh phdn ehu yeu Id cat tir cat thd ddn cdt nhd. Mdt trong nliirng dae diem dac trung ciia doan bo nii> la sir boi Idp vd dich chuyen eira sdng.
cira dam. Cae eiia Dd Rdng, Da Ndng ihuimg xuydn hi bdi lap vai cuirng do lon xdy vdo thai ky miia khd (nuia gid Tdy Nam). Ridng cira Dd Ndng eo nhieu thai didm trong nam bj lap hoan lodn. gd\ anh hudrng rdi lo'n den boat ddng kinh le ciia cgng ddng ddn cu dia phuang. Qua trinh djeh chuyen cira dam O Loan, cdc cira Dd Ndng, Dd Rdng ludn cd xu hucrngdjch chuyen Icn phia Bac ve viing ha liin fu\ An. Su bien dgng ba bien chi gap tai mol -SO khu \ u c irong pham \i hep hay lai hai bi;n bcr eac cira song, cira dam, tuy nhien cung gap nhung bien ddng bat ihucrng lai mgt sc) doan ber, dicn hinh la kim vuc bdi 'fhdn 2, xa Xuan 1 !ai. huyen Sdng Cdu. do thay ddi thiri tiel (nuac ddng, song Ian).
Vimg bcr xa Xuan Hai huyen Sdng Cau, noi ticp giap ciia chdn nui Cii Mdng va bai cat ben ngodi ciia dam Cii Mdng. bi xdi ler manh vdo thai gian cudi thdng 12/1999 ddu ihdng 1/2000. Chi trong vong ihoi gian ngan bd' da hi xdi Id loi 30 -40 m, phd hiiy vd ldm sap hon 30 ngdi nhd. trong dd cd 20 ngdi nha bi mat hodn lodn, nhung den ihcTi gian 2004- 2008 khu vuc nd)* gdn nhu khdng bi xdi la hodc xdi leV rdt il vd gan nhu dn dinh. Qud irinh xoi kr bcT bien cr ddy xdy ra rat manh trong thiri gian khd ngan do dieu kien ddng luc bat thuimg (sdng manh, trieu cuang). Xcl vc bdn chdl vd vc Ijch sir phdt Iricn ciia vimg bd ir da)' ihi hien lugng na\ kii the hicn ihco chu ky nhicu nam. Theo kel qud phdng vdn eu dan dia phuong duoc bicl rang, vao thoi ky Vua Gia Long (hon hai tram nam truo'e) thi ehinh lai khu vere xa Xudn Hdi (Cd Ngua) ndy Id cira phia Bac ciia ddm Cii Mdng an ihdng voi . bien. Tii' khi cira bi ldp cho den nay eung dd nhieu lan eo ddu hieu mo lai eira do tdc ddng cua ddng luc bien a phia ngoai vd phia trong dam, nhung do su can trcr ciia con nguiri nen khdng the xdy ra.
Doan bcr tir phia Nam cua Le Thinh den Xudn I Ida Id bdi co chieu ddi hem 7 km Ddy Id doan bir dugc cau tao boi vat lieu chii yeu la cat bo rcri chiu tae ddng ciia cde qua trinh sdng, gid \ a dong ehay ven bcr, thucrng xuyen xuat hicn xoi Icr va bdi tu dan xen nhau.
nhung XOI Io la chu \eu.. CJ giai doan 1965 den 1985 doan ba nay bi xdi lir manh, c6 nai duirng ha bj xoi 16 han 100 m, lir nam 1985 lcri nay doan bcr nay a trang thdi cdn bang ban, hdu nlur it bj bien ddi theo ihai gian, chi ndng khu vuc cira An Hdi hdng nam duge md vdo miia mua va bdi Idp kin vdo miia khd.
- Cer chi ldp cira: Hidn tugng lap eira thirong dien ra vdo thoi didm nuoc sdng kiet, sdng Icrn. Vat lieu hai ben bo eira di chuyen dgc bir, phat tridn hai mui doi cdt lam hep va ndng eira ddn. tao nen cira cd liet didn ly Id chicu ddi lon hon nhieu ldn chieu rdng va ticl dien ihiiv truc hep ddn ldm luu tliJng nucre qua eua gidm di ddng kd. Mat khde do tdc ddng ciia song manh cd huang true giao vai bcr. da mang vdt lieu tir ddy ldn vun thanh gir cdt chan ngoai eua. Cdc gir cat ndy dugc sdng lan dan \ao bcr va phat trien cao ddn len hinh thdnh doi cdi chan truac cira Iam can trdf sir luu thdng ciia nuac trong ddm vol nuac bien.
V>io thiri diem sdng leirn doi cat nay dugc vun len rdt nhanh va "Ian vao" lap hoan loan eira da hi ihu hep va can (dien the nay the hicn rat rd lai khu vuc cira An Ildi).
+ ('a che mo cua: Hicn tugng ma cira thucrng chi dien ra trong miia mua lu lon vd ihuirng o nhung nai be ngang ciia dun cat hep ban so voi hai ben (ciira An 1 lai) hay ci ngav lai gdc
Hill nghi Khoa hoc i ii Cting nghe hien loim i;»tA /„„ ,/„^ |.
ciia doi cat sdl \cri mui da (cita sdng Da Ndng) Didiii mor cua thucmg gdn nhu Iriing \di yj tri cira da lirng tdn lai truac day. Bdn chdt cua co che mcr cd the md ta nhu sau 1 ai cdc mrj cira mcr IhucTug cd bd ngang hep, vat lieu tram lich ihd han so vo'i hai ben. Do vdi jlai tho hon lao ra nhidu lo rdng han \ a ldc do tham nucrc qua day cung nhanh ban so vdi hai beii.
Nhu \dy lai cdc diem nay. dong iham tir sdng ra bicn hay tir bien vao sdng dal gui in cue dai. Khi mue nucrc sdng vd nuac bien co ehenh lech cao (do mua hi keo ddi. eivong dd IQ leVn. hay nucre ddng trong bao,..,), lao dp lire ihi ddy la noi xung vcu nhat. Chinh dp lyc ndy lam tang lde dd ciia ddng tham tai cue dai \d du manh de day cdc hat vdt liiu ihd djch chuydn vd phia muc nucVc thdp hon, lao dd cho ddng nuac chay lu do ihco hudng kr cao xudnu thdp. Ddng chay manh ddn. phd vo hai ben vd khoet sau xudng. Mire Lhciih lech muc nuirc cang lan ibi su phd ver ciing nhanh. rgng \d luong eang bj kbdel sdu Dicn hinh cho kicu hip ma nay Id vide lap mcr cira An Hai "fu>' nhien, ehu ky ihiri gian liip mo cac cua bidn ndv nil khde nhau va phu lluide rdt nhieu vdo cdc veu id ngoai smh.
Doan bir lir \a .'\ii M\ ddn xd Hda 'fdm co huang gdn bac nam, chieu ddi hon 30 km.
Bai cat nay ihudc dang bdi ngang va 6 irany ihdi can bdng ben hdu nhu il bieii ddi Ihco ihiri gian. Chi rieng cac khu vuc ciia Dd Rang eiia Dd Ndng thi duimg bir bi bicn ddi manh hon, xdi la va bdi tu ihuimg dan xen nhau, do lae ddng long hgp ciia cdc ddng chay sdng vdo miia mua lu vd cde qua Irinh (buy ddng luc vimg bien ven bir (hinb 1).
2. llien Iriing dudng bo' tii- eiia Le Thjnh den cua An Ihii.
Doan bo lir cira Lc 'fhjnli - cira An Hai cd huong bae -nam. ehieu ddi khodng 7 km, ihdnh phdn vdt Meu cau tao bai chii yeu la eat hat mjn den cat trung. Dia hinh bai bien thude dang bdi lieh lu - xdi lo do ldc dgng ciia sdng ehiem uu the, bai duerc lieh tu viio miia khd cdn niiia mua thi bj xdi kV. Bcr bien bj bien dgng manh la khu vuc ciia Le '1 hinh va cua An lldi Be mat bai nhin ehung rat bang phang. dg cao Irung binh eiia bai lir 2.5m den 2.7ni, phdn bai lir 0-1 m dde ban. do ddc 8-10". Cii'a An lldi thucrng 3-4 nam bi ldp mol ldn Nam 2006 bi Idp vao miia khd. 10/2007 du mua lu va song lon ben ngodi. chinh quyen dia phucmg da huy dgng ddn khai thdng lai cira An I lai nhdm khac phuc nan hit ben trong dam l-iie eira An 1 lai ehua mo muc nuac cao bon Iran lut eac nam trucrc khodng 1.2 m \a cao ho'n nuic binh thucrng khodng 2m. Khi eua An llai khai thdng llii khdng cdn hi ngup kit. Khao sdl ngiiy 21/11/2007 co thiiy cua An Hai da dugc ma. rgng kboang 4()nni (rieng lach chinh rdng khoang iOOm), sdu trung binh kboang 2 m liic thuy irieu thap nhdl Bir biic cira An Hai bj xdi ler nang, ducrng bo vdch Ihdng dung Iren ebidu ddi klioang 1 km hi Id manh khoang 5-lOm/nam vao miia gio Ddng Bdc, miia gio Tdy Nam duge bdi nhe khoang 2-5m. Miia ICi 2007 da phd lun hdng tram ao dia va hang tram ldng nudi thiiy sdn doc hai ben bcr ddm, do he Ihdng dip ldm hep Idng chay nen nuae Irong dam dang cao hem. chdy xiet ban dan den cudn ircii lat ea hai ben bo va pha eii'a An I Idi, Trong thoi gian lir liiang 1 den thdng 8 hicn tuong lap eira An lldi duai ldc dgng cac qua Irinh thiiy Ihach ddng lire da hinh thanh ddi eon cdt chdn ngang eii'a An llai Idm hdng tram ghe thuydn khdng ra khoi duge sudi thai ky niiia khd nam 2008 Hicn trang ddng/mo cira An llai vd xdi hr-bdi lu duorng bdr lir cua Lc Thinh ddn ciia An 1 Idi vd Ihe hicn tren hinh 2 va hinh 3.
fieu ban Diu ly. Dig chert vd Dig veil ty Biin
Hinh J: Scr dd hinh thdi dudng ba bien lmh Phii Yen
Hc)i nglu Khoa hoc vei Ccmg nghe bien loan c/noi h~/„ f/,^ y
Cua An Hai direrc ma ta (11/2009) Doi cin lap cira An Hai ^S. \iuS) Hinh 2 Hien lugng elong/md ciia An Hui
Ddl vcJi cac cua An Hdi cd hien tugng mcr - lap ciia: Ci doan bcr tich lu mai Mon da bi san bang va cung chju anh huo'ng lan kien lao, nhu cira An Hdi nam gdn mien !i,t liin Tuy An. Mat khac, khdi lugng vat lieu lir song ra trong miia mua lu rat it hay hdu .inr khdng cd. Ddi voi cua An Hdi - vat hdu bdi tich dirng lai cr ben trong ddm. Vdt lieu L.II a nhirng noi CO hien tugng mo - idp eua thuang lan ban nhieu lan so vai khu vue Idn cdn Cdn be ngang eua dai dat noi co hien tugng mo ldp lai hep hem nhicu so vai khu vuc ke c iin.
Hinh 3: Sa dd xdi la - he}i lu khu vuc cua Ld Thinh vd An Hai
fieu ban Dni ly. Dig chat vd Dia viil ly Bii-n
3. Hien trang viing bo khu vuc ciia Da RSng
Hinb 4' Sa do xdi ler - bdi lu khu vuc cua Dd Rdng
Khu vue cua Da Rang (hinh 4). doan ba phia Bdc cua hi xoi 16 manh, co chidu dai khoang 400 m, nam 2007 bi 16 nang vao - 25m (thang 10-11), ben canh xdi 16 la doan bai bdi ngay phia Bdc khoang 400m (be rgng = 70-100 m); tidp len phia Bde khoang 2km la doan bo bi xoi 16. Khu vuc ngoai cua Da Rang hinh thdnh he thong con hinh canh cung 6m Idy cua. He thong con nay nhieu khi bit kin cita song, cdn tro ghe thuyen suot nhieu thang khong ra khoi duge. Vimg ba phia Nam cua Da Rang ba bi xoi 16 nang co ehieu dai khoang 2 km (khu vuc nha may ddng tau), bi 16 vao miia gio Ddng Bae. Dgt gid dau miia Ddng Bae nam 2007 da bj xdi Id =; 40ITI (cue dat ~ 50m), bdi vdo miia gid Tay Nam (~ 2- 5 m/nam), do dde bdi rdt Idn. Dgan bd nay trudc nam 2005 bi la nhe (2-5m/nam), tii' 2005 den nay bj Id ~ 30m/nam. Dgan bd ke tiep ve phia Nam (sdn bay Tuy Hoa) bj Id nhe trdn 2 km (^ 2-5m/nam).
- Nguyen nhdn: cd the do thugng ngudn gan etay da xay cdc dap thuy dien Sdng Hinh.
dap Ba Ha. Trong hch su eira Da Rdiig da di chuyen vd phia Bac khoang 2.5 km, nhung tir khi Phap xdy cdu Da Rang va kc ba bac Ihi cii'a khdng di chuyen nua.
4. Hien trang viing bd khu vuc ciia Da Nong
Hien nay, doan bd phia Bdc thugc xa Hda Hiep Nam den eiia Da Nong hien tai, ed chieu ddi khodng 3.5 km bi xdi Id nhe, ehieu rdng bai thay doi tir 40- 80in, thdnh phan vat lieu ehii yeu la eat trung - mjn. Trudc nam 2002, khu vuc eiia Da Ndng each cua hicn tai fthoang 3.4 km \ e phia Bae va cung xay ra hien lugng bdi lap cira vao miia khd va md eira
Hot ngin Khoa ttoc vd Cong ngh^ bten loan quo, lan thic y
vao mua mua, gay ra nhiSu kho khan cho ghe thuyen ra vao cira vao mua kho. D6ng thoi voi sir phat triSn manh nghj nuoi tr6ng thuy san trong vimg, nham tang qua trinh trao d6i nuoc cho cac khu vuc nuoi trfing, tit d k nam 2003 da khai dao ciia Da Nong hien tai va tien hanh xay ke o bo phia BSc cua Da Nong de 6n djnh cua, sau khi xay xong thi he th6ng ke ciing hi pha htiy do cac tac dong cua cac diSu kien thtiy thach dgng lire ven bit, day la cong trinh rit t6n kem, nham tri thiiy song Ban Thach. Nhin chung dpan ba xung quanh he th6ng ke la tuong d6i 6n dinh. Doan bcr phia Nam cira Da Nong nhin chung la bai cat co chieu dai 500m, chieu rpng bai bi thay d6i theo miia (do song va dong nuoc song). Vao mua gio Dong BJc bai bi xoi lo nang, khai thong cira song, miia gio Pay Nam duac boi, nhung lugng boi tich dpc ha it do phia Nam la vach nui da nen chi thu hep ph5n nao ciia lach (hinh 5).
Hinh 5: Sa do xoi Id - boi tu khu vuc cica Dd Nong
III, KET LUAN
- BIT bien tinh Phii Yen gom nhigu cua song, dim pha, vung, vinh va co nhicu inGi dat nho ra bien. Duong ba nhat la o khu virc cac cira song, ddm pha bi xoi 16 vao Ihtri ky miia mua lu, dong thcri cung la thoi ky gio miia Dong BSc va bao. Thoi ky miia kho va gio miia Tay Nara ducmg bcr duoc b6i tu Tuy nhien, cucmg dp ciia xoi Id lcm hon cucmg dp ciia boi tu.
- Cac cua song, cira dam thucmg bi b6i lap vao thcri ky miia kho, day la di6ni J..;^ h"™?
nhat ciia qua trinh xoi la-b6i tu ducmg bcr biSn tinh Phu Yen. Trong do, hiiin lupng
7jiu_baiiDUlif^D^iijr^^ ,.,j, ,y, £,^„
dong/mo cua An 1 lai (dam 6 Loan) da tac dong xau den diSu kien moi truong ben trong dam. anh huong nghiem trpng dC-n cac hoat dong kinh ti - xa hpi ciia hang van nguoi dan song quanh dam nhu danh bat, nuoi trSng thuy san nong nghiep, su ra vao cira dim ciia hang tram ghe thuyen danh ca,...
- Hicn nay, mpt so cira song tai Phu Yen da duoc xay dung cac cong trinh bao \c nhung hicu qua cua vice bao \ c mang lai con th5p
TAI LIEU T1L\M KH.iO
Bill IBng Long, Le Dinh Mdu, 2003. Dac diam phan b6 eac dac trung song tai vimg bien ven bir linh Phii Yen. Tap chi KH&CN bi5n. T3 (2003).
Bill HcHig Long, 2009. Danh gia tac dong cua cac trucmg song trong gio miia den dai ven bien Nam Trung Bo tir Phii Yen dfin Binh Thuan va di xuat cac giai phap giam nhe Ihict hai phuc vu phat tridn b6n vung, (2007-2009). Bao eao khoa hpc t6ng kat de tai Doc lap ciip Vicn Kl i&CN VN' Nha Trang 7/2009, 270 tr.
Bili Hong Long, 2011. Luan chinig khoa hpe ky thuat phuc vu cho quan ly t8ng hpp v.i phat trien ben vung dai ven bo bign Nam Trung Bp dap img muc tieu chiSn luoc phiit trien kinh lc biBn, Ma s6: KC.09.24/06-10. Bao cao tjng kSt de tai cdp NN. Nha Trang, 2011.350 tr.
Lc Dinh Mau, 2010. Danh gia nhung tac dong ciia cac eong trinh bao ve den moi truimg \iiiig cita siing ven biin Nam Trung Bo Bao cao t6ng kit di tai cip Vien KH&CN VN. Nha Trang, 2010. 250 tr.
Pham Van Ninh, 2003. BOi lu va xoi Id btj biin Viet Nam (Tuyin tap Chuong Trinh Diiu Tra Nghien Ciru Biin CJp Nhii Nude KHCN - 06 (1996-2000): Biin Dong, tap II: Khi Tupng Thiiy Van Dpng Luc Biin, trang: 411 - 433. BKHCN-06.2
Pham Huy Tian, TrSn Dire Thanh, Biii H6ng Long, Nguyen Van Cu, 2002. Cac kit qua chinh nghien ciru xoi Id, bdi tu vung ciia sdng ven biin Viet Nam, Tap ehi Khoa hpc va Cong nghe biin, 10(4): 12-26 CV 14.
Le I'hudc Trinh, Biii Hdng Long, Trinh Thi Hiiu, 2000. Nghien cira quy luat va du doan xu the bdi tu - xdi Id vimg ven biin va cira sdng Viet Nam. D i lai KHCN 06.08 (de tai da cdng bd trong tuyen tap Bao cao ting kit Cac Chucmg Trinh Dieu Tra Nghien Ctru Biin CJp Nha Nude 1977-2000, Tap V Trang 110-129). BKHCN - 06.1.
