KHOA HOC COHG NGHE
HiElXl TRAIVG D A DAIXIG SIIMH HOC CAC L O A I C H I M T A I K H U B A D TOIXI C H I M VAIVI S A T TROIXIG K H U D U T R U
SIIMH OUYEIM RUIMG IMGAP IVIAIM CAIM G I Q
Huynh Diic HoanS Biu Nguyfin Th^ Ki^t', Phan van Trung', Dang Ngpc Hiep', ViSn Ngpc Nam==
T6MTAT
Thanh phan thirc vat ciia he sinh thai rung ngap man Can Gio duoc kboi phuc va ngay cang co su da dang, di^u nay gop phan tao di^u kifin Ibuan loi cho cac loai dong vat quay tro lai day sinh sOng sau dioi gian rimg bi hiiy di^t Uong chi^n tranh. Da khao sat thanh phan cac loai chun theo 5 tuyen dieu tra (m6i tuy^n dai I km) va l^p 5 6 tieu cbuan (m6i 6 400 m^ de theo doi so luong to cua cac loai chim. Kel qua theo doi qua 2 dgt (tir Ihang 5 - thang 11 nam 2017 va tir (hang 5 - tiiang 11 nSm 2018) dieu tra v^ cac loai chim phan bd tai khu vuc San Chim Vam Sat thuoc Tieu khu 15a - Rimg phong hp Gin Gio ghi nhan diroc 33 loai chim thugc 19 hg va 10 bo, trong do co 26 loai dinh cu va 7 loai di cu. Co 9 loai lam to tap trung theo bay dan trong kbu virc g6m: Vac, Coc, Co Udng, Co ngang lon, Co ngang nho, Co bo, Co bg Java, Di&n dien, Sa khoang cd. Cha la la cay cbi^m mi tb& Uong quan xa thuc vat tu nbien, day cung la loai dugc cac loai Chim cbgn lam td nhi^u nhait. K^t qua theo doi ban dau nham tao co so dir lieu phuc vu cong tac bao ton da dang sinh hgc cac loai dong vat lai rimg ngap man Can Gio, dong thoi gop phan bao v^ va phat tnen di^m tham quan hgc t^p va nghi&n ciiu ve cac loai chim tai Rimg ngap man Can Gicr.
TCt kh6a: San chim, Vam Sat, Gin Gid. rimg ngap man.
1. BUT VAN BE
Sau bon 41 nam phuc hoi, quan ly va phat trien, den nay, he sinh thai iimg ngap man tai Can Gio da dupe phuc hoi, he ddng thuc vat da dang, phong phu Irtroc day dang dan hdi phuc ti'o Iai. Nho nhimg dien tich rimg bat ngan xanh tdt, da va dang la noi tni an, di cu va sinh san ciia nhi^u loai chim nuoc tai Rimg ngap man Can Gia. Khu San chim Vam Sat la ten gpi ciia Khu Quy hoach vung Bao ton chim tai Rimg phong hp Can Gio, dupe Uy ban Nhan dan tiianh phd Ho Chi Mmh plie duyet khoanh vung chim thu rimg vao nam 2004 nham bao ton va phat tiien ben vUng he sinh thai rimg ngap man ca ve nguon gen, cay rimg va dpng vat, dong thoi tao noi tham quan hpc tap, nghien cuu va giao due de nang cao y thuc cua cdng dong ddi vol viec bao t6n va phat trien he sinh thai rimg ngap man. Khu Du tru sinh quyen.
Trong nhting nam qua, cong tac quan ly va phat tiien he sinh tiiai Rimg ngap man Can Gio dat dupe nhieu hieu qua to Ion, tuy nhien cac cdng tac dieu tia, nghien cuu va quan ly bao tdn cac loai chim thu tai day chua nhan dupe nhieu su quan tam thuc hien.
Ban Quan ly Rimg phong hg huyen Can Gio
"Khoa Lam nghiep. Tnrcmg Dai hoc Nong Lam ihiinli pho H6 Chi Minh
Ben canh do, cong trinh nghidn cim li^n quan gan nhat (Hoang Due Dat, 1997) da each day 22 nam. Bi thuc hien tdt cong tac bao ton da dang sinh hpc cac loai chim trong Rimg ngap man CSn Gio, da ti^n hanh khao sat, di^u tra khu he chim sinh san, tap trung lam to tai San chim Vam sat. Ket qua nghien ciru cua bai bao nay se cung cAp nhimg co so dCr beu ban dau ve hien trang khu chim, mot sd lap tinh lam to, cac nhan td sinh thai anh huong den su sinh san, du eu, di tni cua cac loai chim va de xuAt cac giai phap bao tdn gop phan quan ly ben vimg khu he chim nay.
2. PHUDNG PHAP NGHBU CUU 2.1. Dia di^m, fhcri gian nghien cuu
Khu quy hoach San chim Vam Sat thupc Tieu khu 15a - Rung ngap man Can Gio, vcn dien tich vung loi la 126,2 ha (toa dp dia ly: 106''46'40" - 106M7'32"
Kinh dp Dong; 10"28'51" -10''29'44' Vi dp Bac) toa lac tren dia gioi hanh chinh xa Ly Nhon, huyen Can Gicr, thanh pho Ho Chi Minh.
Nghien cuu duoc tien hanh vao cac thang 5 den thang 11 cua cae nam 2017 va 2018 (day la khoang thoi gian chim di cu ve San chim Vam Sat).
2.2. Phucmg phap nghien cuu 2.2.1. Didu tra thuc dia
^.A-K.^ *P.^M(rp v/A DUAT TPIPW N O N G THON - KY 1 - THANG 9/2019 69
KHOA HOC CONG N G H l
De dieu tra thanh phan chim a khu \'uc nghien cuu, qua Uinh dieu tra thuc dia dupe tiiuc hien dinh ky 2 ngay/thang, tong so ngay dieu b^ 28 ngay. Viec dieu ti-a duoc thuc hien ti-en 5 tuyen dieu tra, moi tuyen CO chieu dai 1 km. Cac tuyen dupe lap dam bao di qua cac hien trang rimg chinh cua khu vuc, cac tuyen dupe lap dpc tiieo he thong kenh dao phong chay, chira chay rung trong khu vue nen thuan loi cho vipc ghi nhan cae loai chim.
Cac loai chim b khu vue nghien cuu dupe ghi nhan dua vao viec quan sal true ti^p bang ong nhom va mat thuong. Ngoai viec quan sat tren cac tuyen dieu tia, viec quan sat cac loai chim con dupe theo doi tren thap quan sat eao 30 m dupe dat tai khu vue nghien cuu. CAc loai chim dupe dinb danh ngoai thuc dia vdi si/ ho trg- cua cac tai Ueu: Nguyen Cu va cs.
(2005) va Nguyen Phuc Bao Hoa va Dao Van Hoang (2010).
Vice theo ddi tap tinh chim lam to va cac nhan to sinh thai trong khu vuc thong qua cac 6 ti^u chuan phan bd d^u tiong eac hien trang rimg tu nhien dac trung ti-ong khu virc theo dSi. M6i 6 dieu tra co dien tich 400 m^ (20 m x 20 m). Tdng so o tiieo ddi la 5 6.
Trong cac d do d^m cac chi U6u: Thanh phan loai cay; duimg kinh ngang ngirc va chieu cao vut ngpn cua cSy rimg eo chieu cao ldn hon 1,3 m (de tinh chi so quan ti-png - IV% eiia cac loai trong quan xa) va sd lupng to ehim/cay (dupe theo doi va dem dinh ky 2 lan/thang).
2.2.2. .\ulv sdhdu
Lap danh sach eac loai chim da x.u dmh ngo^
tinn: dia. Ten phd tiiong va ten khoa l u . .-ua cac lodi chim dupe xay dung tiieo Nguyen Phuc Bao Hoa vd Dao Van Hoang (2010) va Nguyen Um Hung Son, Nguyen Thanh Van (2011).
Viec phan loai cac loai chim di cu va dinh cu di;a tren ket qua dieu tra lan dau tien ve kliu he dpng vat rimg o Can Gio ciia Hoang Due Dat vao nam 1997.
Danh gia miic dp bi de dpa eua cac loai chim trong khu vuc nghien cuu theo Sach Do Viet Nam (2007) va Nghi dinh 06/2019/ND-CP ngay 22 thang 01 nam 2019.
RD% + RF% + RBA%
Tinh chi sd rv% d^ xac dinh cong thuc td thanh loai trong qudn xa thuc vat theo cong thiic nhau sau:
Trong do: RD la mat dp tuong ddi cua mpt loai;
RF la tan suat xuat hien ciia mpt loai; RBA la dien tich tiet dien tuong doi cua loai.
Cac so lieu thong ke va tong hpp dupe xii ly tien phan mem Excel,
S. KET QUA VA THAO LUAN
3.1. Thdnh p h ^ cdc lodi chim t^i San chim Vdm sat
Qua ket qua quan sat da thdng ke dupe 33 lodi chim tiiupc 19 hp va 10 bd 6 khu vuc San chim Vdm sat (Bang 1). Trong d6, co 26 lodi dinh cu va 7 loai di
Bdng 1. Danh myc cdc lodi chim quan sdt dupe tai San chim Vam Sat Ten khoa hpc
I. APODIFORMES 1. Apodidae
Aerodramus tiicipbagus tjhunherg, 1812) I. ANSERIFORMES
2. Anatidae
Dciidrocygna Javanica (Horsfield. 1^21)
Ten pho thong BOYfiN HpYen Yen hang BO NGONG HpVit
Hien trang
. CHAR.'\DKI1F0RMES 'BORE
. Recur\nros-lridae
3_ llim.nitopus himantopus (Linnaeus, jJ Sc(']op;ici(hic
1 I'nnga glarcoh (LiniiiKnis. I'.'t.S) IV CIC()N1IF0M1-:S 5. Ciconiidae
1758)
_;ib_K;i_kheo __
_l£a_klic(,,S(.dua
ICIioatbungxdm 'BQHAC _ !HpHac
DC DC
70 N O N G NGHIEP VA PHAT TRIEN N O N G THON - KY 1 - THAI4G 9/5
KHOA HOC CdNG NGHE
5
6 7
8 9 10 11
12 13
14 15 16 17 18 19 20 21 22 2.S
?4 25 26 27 28
Ten khoa hpc Mycteria leucocephala (Pennant. 1769) V. COLUMBIFORMES
6. Columbidae
Stieptopeha tianqueba-rica (Herman, 1804) Streptopelia chinensis (Scopob, 1786) VI. CORACIFORMES
7. Alceduiidae
Halcyon smymensis (Linnaeus, 1758) Halcyon chloris (Boddaert, 1783) Halcyon pileata (Boddaert, 1783) Alcedo atthis (Linnaeus, 1758) VIL CUCUUFORMES 8. Hp Cuculidae
Centiopus sinensis (Stephens, 1815) Centiopus bengalensis (GmeUn, 1788) VIIL PASSERIFORMES
9. Pycnonoti-dae
Pycnonotiisgoiavier{Scopo\i, 1786) 10, Passeridae
Passer flaveolus (Blytii, 1844) /'asse/-moj7^;z/s (Linnaeus, 1758) Passer domesticus (Linnaeus, 1758) 11. Ploceidae
Ploceus philippinus (Linnaeus, 1758) 12. Stumidae
Acridotbe-res grandis (Moore, 1858) 13. Phylloscopidae
Phyllosco-pus hiscatus (Blyth, 1842) 14. Corvidae
Crypsirina temia (Daudin, 1800) 15. Rhipidundae
Rhipidura javanica (Sparmian, 1788) 16. Zosteropidae
Zosterops palpebrosa (Teniminck, 1824) DC. PELECANIFORMES
Ardeola bacchus (Banaparte. 1855) Ardeola speciosa (Horsfield, 1821) Egretia garzetta (Lmnaeus. 1766) Egretta intemiedia (Wagler, 1829)
Ten phd thong Giang sen BO BO CAU Ho Bo cau Cu ngoi Cugdy BOSA Ho Boi cd Sa dau ndu Sa khoang cd Sa ddu den Bdng chanh BO CU CU Ho Cu eu Bim bip ldn Bim bip nhd BOSE Ho Chdo mao B6ng lau may trdng HoSe
Se bui vdng Chim se Senau Ho Rong rdc Dong doc, Rdng roc Ho Sao Sao md vdng Ho Chim chich Chich nau Ho Qua Chim khdch Ho Re quat Re quat java Ho Vdnh khuyen Vdnh khuyen hong vang BO BO NONG Ho Diec Vac Co bo Co bo Java Co trang Co ngang nho
Hien trang DC
DC DC
DC DC DC DC
DC DC
DC DC DC DC DC DC DC DC DC DC
DC DC DC DC DC
Mft-wM,*^ n i < ^ : ui6n v/A DUAT TPIFN N O N G THON - KY 1 - THANG 9/2019
KHOA HOC CONG NGHC
Ten klioa IUK:
29 Egretta alba {hnnaeus. 1758) 30 .Ardeapuqniea {linnaeus, 1766)
;i 1 .Ardca sumau-ana (Raffles. 1822)
32 33
X si:Ln-0R.\n-:s
18. Phalacroco-raeidae Phalacrocorax niger (\'ieillot, 1817) 19. Anhingidae
Anhinga melanogaster (Pennant, 1769)
Ten pho thdng Cd ngdng lon Diec lira Diec Sumatra BO CHIM D I £ N Ho Cdc Cdc den, Cdng cdc Ho Chim cd rdn Dien dien, C6 ran
Hier- '^
1'^
1\
PC
DC DC Ghi chu. QS: loai quan sat duQc; DC: di cu; DC: dinh cu.
Trong cac o theo doi. co 9 loai lam td gdm: Vac.
Cdc, Co trang, Co ngang lon. Co ngdng nho, Cd bp.
Cd bp Java, Dien dien, Sa khoang cd lam td trong khu vue. Trong dd: lodi Co trdng, Vac, Coc. Co ngdng nhd cd so td nhieu bon cac loai con lai. Day la nhimg loai 1dm td tdp trung thdnh timg bay dan. cac loai chim khac cd ghi nhan Idm td trong kbu vuc nghien cuu nhung phan bd rdi rdc va khong xuiit hien trong cac 6 dic'u tra theo dPi.
Trong 33 lodi quan sal dupe, cd 1 lodi Giang Sen {Myclena leucocephala) dupe ghi nhdn trong Sdch Di) Viet Nam (2007), c6 1 lodi Dien didn {Anhinga melanogastei) thupc danh muc dpng vat nmg nguy cdp, quy hiem tiieo Nghi dinh OiV^iCUi/ND-Ci' ngdy 22/01/2019 cua Chinh phu ve tiii;c vai rimg, dpng vat rimg nguy cap, quy, hiem vd thuc thi Cong uoc ve buon ban qudc le cac loai dpng vat. thuc vat hoang da nguy cap.
3.2. D$c di^ra sinh thdi ciia khu vyc chim 1dm td 3 2.1. Sinh canh kbu vuc chim lam td Dieu tra thdnh phdn thuc vat tai khu vue chun lam td tiidng ke dupe 7 loai cdy rimg ngap man: Cha la {Phoenix paludosa). Gia {Excoecana agallocba).
Dd quanh {Ceriops decandia), Mdm den {Avicennia otticinali^. Coc trdng {Lumnitzera racemosa). Ban di {Sonneratia ovata) va Quao nuoc {Dobcbandrone spaihacea). Khu vue nay Id nhijng dien tieh rimg tu nhien. voi loai cay Cha la chiem uu the, cong thuc quan xa tai khu vuc ndy Id: 0,7 Cha Id + 0,1 Da quanh + 0.2 cac loai eon lai.
cay con Iai dupe chim chpn lam td rat it, tuy nhien khi eac loai chim chpn Idm to tren cay Mam den thi si) lupng id b moi cay nay thudng rat nhieu, bidn dpng trung binh tir 3 • 7 td/edy. Mpt diem quan tdm khac. xung quanh khu vue chim 1dm td co nhieu dien Uch la rimg trdng Dude doi {Rliizophora apiculat^, tuy nhien khong bdt gdp nhieu lodi chun lam td tren lodi cay nay.
3.2.2. Mua sinh san trong nam 3001
••^100 J
Thing: Thang 8 Thang 9 Thing 10 Hinh 1. Sd lupng td chim ti-ong cdc o di^u ti^ qua 2
nam tiieo d6i
_ Ket qua khdo sat ve tiioi gian lam td va sinh sdn cua 9 loai chim lam td, da ghi nhdn sd luong td chim CO su bien dong rat ldn ft-ong khoang thoi m-m ti>
Cha la Id cay chu yeu duoe eac loai chim chon tiiang 5 den thang 11, trong dd chim lam to td tmn lam td. mdi ti'ong nhimg ly do la chung tiiuong mpc tu tiiang 6 den thang 8, nhidu nhat la
Den c
kel tinic tiong khoang thdng 10 hang
thdnh timg bui lon, tdu la sum xue. co nbi^u gai, giCta Den cudi tiiang 9 sd°luone chim lam")/'"^ , f^ ^' __. L..: I.!-.,.;__ L 1 =_ ,-. _.;_ ^j. .i-_ _^__ 1.:. ,1., . . _ " * " slam dan va cac bui khoang cach Ion nen se can tra su tan cdng
vd xdm hai ciia eac lodi dong vdt sdn ni6i. Cac lodi
72 NONG NGHIEP VA PHAT TRIEN NONG THON - KY 1 - THANG 9/2015
KHOA HOC CONG NGHE
Khoang tiidi gian chim lam to cho thay chu yeu tdp tmng vao miia mua. Co th^ day la khoang tiidi gian md cdc loai thiiy sinh vat Od ngudn thiic an chinh ciia cdc loai chim) kha ddi ddo, qua dd cdc loai chim tdp tiding v^ noi ddy cu tini vd sinh san.
3.3. Nhfing y ^ td dnh huong ddn vuim chim vd si; di cu t^p trung sinh san cua cac loai chun
Khu vuc chim chpn 1dm to tap tiling chu yeu Id bien ti^g rimg Chd la, ddy la lodi phan bd tren vung dat cao it ngap tiieu. Ket qua dieu tra da ghi nhan nhieu khu vuc cd dau hieu ngap ung cue bo, dieu ndy CO tii^ ddn den su suy thodi cua mot sd qudn the Cha Id ti; nhien, ddng nghia vdi viec Idm thay ddi didu kien mdi tiirong sdng thuan Ipi cho cdc lodi chim dang vd da di cu ve khu vuc nay de sinh san.
Mpt dieu kien thuan lpi cua rimg ngap man Cdn Gio cho cdc lodi chim di cu v^ noi ddy sinh san la ed he thdng s6ng rach chdng chit cung cap ddi dao ngudn tiiuc an cho cdc lodi chim. Ben canh dd, hien tiang chu ydu trong khu vuc chim tiiucmg tap trung chu yeu la Chd Id, day Id lodi rat de chay khi thdi gian ndng ndng keo ddi, do dd ti'ong vung loi khu quy boach chim cd he thdng kenh ddo chu^ nude - phuc vu cong tdc phdng chay, chua chay, qua day them noi cung cap nguon thuc dn tai chd, dac biet cho cdc loai chim lam td frong khu vuc tim kiem thuc an cho chim con. Ddy cung cd the xem la ly do tai sao chim tap trung ve khu vue nay de sinh sdng mac du trong rimg ngap man cdn nhi^u khu vue khdc ed quan tiie Cha Id tu nhien phdn bd.
4. KET LUAN
Kdl qua dieu tra ban dau dd thdng ke dupe 6* San chim Vdm Sdt co 33 loai chim, gdm 26 lodi dinh cu va 7 lodi di cu. Cd 9 lodi Idm td lam td tap tiling theo timg bdy bdn trong khu vuc gdm: Vac, Cdc, Cd ti'dng, Cd ngdng ldn, Co ngdng nhd, Cd bo, Cd bo' Java, Dien didn, Sa khoang cd.
Quan xa tiiuc vat rimg tu nhien tai Sdn chim Vam Sat vdi tiidnh phan uu the la cay Cha Id, ddy cung Id lodi dupe cdc loai Chim chpn lam td nhidu nhdl. Hang ndm, thdi gian edc lodi chim di cu ve San chim Vdm Sdt vd lam td de sinh sdn tiling vcri mua mua (lap trung nhidu vdo cac thdng 6, 7 va thdng 8).
Cdn chu trpng cong tdc bao tdn cdc qudn xa thuc vat trong khu vuc Sdn chim, dac biet la quan xd Chd Id: Dam bao cong tac phong, chong chay rimg trong mua khd, khdc phuc tinh trang ngap ung cue bp trong mua mua. Qua do, vua gdp phdn bao tdn sinh cdnh cho cae lodi chim, vira gdp phdn gin giir va phdt trien diem tham quan hgc tap va nghien cuu ve cdc lodi chim tai Rimg ngap man Cdn Gio,
Can cd nhieu cong tdc dieu tra vdo nhung ndm tiep theo de co cdi nhin tdng the hon vd xu huong phdt tridn ciia cae loai chim tai San chmi Vam Sat.
Ddng thoi, md rpng thai gian didu tia vdo cdc thang trong nam de ghi nhdn them nhieu lodi chim khdc trong khu vue co dac tinh sinh hpc chpn ngudn thuc an chinh Id mat hoa, qua hoac con tiling.
TAI UEU THAIVI KHAO
1. Bo Khoa hpc vd Cong nghe, Vien Khoa hpc va Cong nghe Viet Nam, 2007: Sach Dd Viet Nam, tap 1 - Phdn Dpng vat. Nhd xuat ban Khoa hpc va Ky tiiuat, Hd Npi.
2. Chinh phu nude CHXHCN Viet Nam, 2019.
Nghi dinh sd 06/2019/ND-CP ngdy 22/01/2019 cua Chinh phu vd quan ly thuc vat rimg, ddng vat rimg nguy cdp, quy. hidin vd thuc thi Cong uoc vd buon bdn qudc td cdc lodi dpng vat, thuc vdt hoang da nguy cap.
3. Hodng Due Dat, 1997. Dieu tra khu he dpng vdt rimg ngap man Can Gio, thdnh phd Hd Chi Minh.
Trung tdm Dich vu Khoa hpc Ky thuat Ldm nghiep - Lien hiep cac Hpi Khoa hpc Ky tiiuat thdnh phd Ho Chi Minh.
4. Nguyen Cu, Le Trpng Khdi, Keran Philbps, 2005. Chim Viet Nam. Nhd xuat ban Lao ddng - Xd hgi. Ha Npi.
5. Nguyen Ldn Hiing Son, Nguyen Thanh Van, 2011. Danh muc chim Viet Nam. Nhd xuat bdn Nong nghiep, Hd Noi.
6. Nguyen Phuc Bao Hda, Ddo Van Hoang.
2010. Danh muc chim Vudn Qudc gia U Minh Tliuang. Nhd xudt ban Khoa hpc vd Ky tiiudt. Ha Noi.
..^uiCB WA nuAT TDICM N O N G THON - KY 1 - THANG 9/2019 73
KHOA HOC CdNG NGHE
STATUS OF BIODIVERSnY OF BIRD SPECIES AT VAM SAT BIRD SANCTUARY IN CAN GIO MANGROVE BIOSPHERE RESERVE, HO CHI MINH
Huynh Due Hoan*, Bui Nguyen The Kiet*, Hian Van Trung*, Dang Ngoc Hiep*, Vien Ngoc Nara^
• Can Gio Protection Forest Managment Board 'Forestry Faculty, Nong Lam University, Ho Cbi Minli city
Summary
Plant of the Can Gio mangrove ecosystem has been restored and increasingly diverse, which contiibules to convenient conditions for animals to return here after die forest is destroyed in tiie war. Surveys of tiie bird in Vam Sat bird sanctuary were carried out m Mav. June. July. August, September, October, November 2017 and 2018. Through the survey of bird species composiUon according to 5 track (each track 1 km lon^
and 5 standard plots (each pk)t 400 m^ to monitor die number of bird nests. The result recorded 33 bird species belonging to 19 families and 10 orders, of which 26 species are resident and 07 species are migrants. There are 09 species nesting birds, namely. Black - crovmed Nigh Heron Nycticorax nycticorax, Littie Cormorant Phalacrocora.\ niger. Litde Egret Egretta garzetta. Intermediate Egret Egretta intemiedia.
Great Egrel Egretta alba, Chinese pond Heron Ardeola bacchus, Javan Pond Heron Ardeola speciosa, Onental Darter Anhinga melanogaster and Collared Kingfisher Halcyon chlons The plant community in the area with the dominani component is Phoentx paludosa, which is chosen to nest by birds. IniUal monitoring results aim to create a database lo biodiversity conservation of animals at Can Gio mangrove forest, while conlribuung to the proteclion and development area thai serve for study, research and sightseeing about birds at Can Gio Mangrove Forest
Keywords: Birds, bird sanctuary. I 'am Sal, Can do. .M.tngrove.
Ngudi phdn bien: PGS.TS. VO Ti^n Thinh Ngdynh^n bdi: 28/6/2019
Ngdy theng qua phdn bien: 29/7/2019 Ngdy duyet ddng: 5/8/2019
NONG NGHIEP VA PHAT TRIEN NONG THON - KY 1 - THA .Q 9/2019
