Điều tra cơ bản nước thời gian qua và những bước đi trong thời gian tới

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vanhii'ngbUGeIi trongthiligiantoi

o DUONGVAN KHANH

PM GiamdocTrungtamQuyho~chvaEJieutraTNN

TrongnhCfngnamqua,EJangvaNhanllcJcdii quantamdencongtacdieutra,danhgiatainguyennllcJc,gap

phandapirngchophBttrienkinhte-xii hQicua dat nllcJc.Tuynhien,cling vcJiSl!gia tangcua dan so,SI!phat trien

nhanhvekinhte,xii hQ;dandentinhtr~ng0 nhiemnguonnllcJc,suythoaichatIlIqngnllocdangdienra vcJiph~m

vi vamircdQdang10ng~i.Congtacdieutra,danhgiatainguyennllcJccanthieutinhh~thong;ph~mvi,di~ntich,

mircdQdil3Utra conh~nche;vi~ctonghqp,danhgia,h~thongMa soIi~uvacongbo ketquadieutrachllad~t

yeucau.Tnrocnhucausti'dVngnllcJchothaikydaynhanhCNH-HEJH,tainguyennllcJcpMidllqcdieutraco

bandongbQ,tongthe,quymoIcJnvadllqc thl!chi~nscJm.

NhOTIgm~tconh~nche

NhCtngnamtrllCsC day,congtac

dieutra,danhgiatainguyennllcJccOn

thieuUnhh$ thong,th~hi$na cac

m~tsau:Vanbanquyphc;tmphaplu~t

quyd!nhvedieutracoban(DTCB)tai

nguyennllCsconthi8U,chlla c6 cac

quyd!nhveh$thongcacchitieu,tieu

chu~n,d!nhmuckinhte - k9 thu~t

trong DTCB tai nguyen nllCsc;ph~m

cong,phancaptrongdieutraDTCBtai

nguyennllCsc;co chechiase thongtin,

dCtli$u tai nguyennllCscva cac thong

tin, dCtli$u lien quan den tai nguyen

nllCsc;quy hoc;tch,ke hoc;tchdai hc;tn,

trunghc;tnveDTCBtai nguyennllCsc.

Vi$cdieutratai nguyennllCscua

cac b9, nganh, d!a phllong chu yeu

t~ptrungph~cv~ cac m~cdlchc~ the

cua bQ, nganh, d!a phllong, it xuat

pMt hI nhu cau danhgia nguonnllCsc

ph~cv~ I~pquy hoc;tch,ke hoc;tchlau

dai ve khai tMc, sti d~ng. bao v$ va

phattrientai nguyennllCsc.it quantam

ho~cquantam chlla day du den vi$c

kiem soat,danhgia tai nguyennllCsc,

nhat la ve chat 11IC;mgnllCsc;danh gia,

dlf bao dien bien tai nguyen nllCsc;...

Qua trinh xay dlfng, th~m d!nh cOng

nhll tri~nkhaithlfc hi$ncacdlf andieu

tra con thieuslf phoihqp giCtacac bQ,

nganh,dia phllang.Vi$ctrao dOi,chia

se thong tin, dCtli$u dieu tra rat h~n

che.Vi$cquanIy, Illu trCthongtin, dCt

Ii$u tai nguyen nllCsccOn phan tan,

chlla t~p trungva khOngthongnhat;

Vi$cdieutra,danhgia tai nguyen

nllCsckhongdllqc lien hanhdongthai

va dong bOtren phc;tmvi toan quoc.

tren tCrngdja phllongva Iw vlfc song,

chlla gan lien dieu tra, danh gia giCra

nllCscm~t va nllCscdllCsidat ph~c v~

khai thac sti d~ng tOng hqp nguon

nllCsc,do v~y,thongtin, dCtli$u ve tai

nguyen nllCscchlla toan di$n va day

duoC6 nhCrngvung. nhCtngnOidung

dieutra dllqc nhieuco quancungtien

hanhthlfc hi$n.gay raslf chongcheo,

lang phi nhllng cOngc6 nhCtngvung

botrongkhongdieutra,d~cbi$t113cac

Illu wc song vCrava nho. Cac thong

tin.soli$u ve tiamnangnguonnllcJcI~i

khOngdong thai vCsicac thongtin, so

Ii~uva khai thac. sti d~ng tai nguyen

nllCsccOngnhll cac yeu to anh hllang

tCsitai nguyennllCsc.

Phc;tmvi. di$n Uch,muc dQdieu

tra con hc;tnche, mc;tng11ICsi trc;tmdo

18 Tainguyen va M6itrvong I Ky2 -Thang2/2009

dc;tctai nguyennllCsconthlla,chlla

dapungyeucaudanhgia so 11Iqng.

chat 11Iqngva dlf bao dienbien tai

nguyennllcJc:

Theo so li$u thong ke, mc;tng11ICsi

cac trc;tmdo dc;tcdieu tra nllC1cm~t tren

ph~m vi toan qu6c cho thay hau het cac

Iw vlfcsongcodi$nUchdllCsi 500km2

chlla cOtr~mdo mlfc nllC1c, Iw 11Iqng;

trongtong so han 80 Iw vlfc songcO

di~nUch500-1000km2chicO8tr~mdo

kethqpmlfcnllCsc,Iw 11Iqngva 12tr~m

domllc nllCsc;nhieuIw VlICcOdienUch

1000'km2 chlla co trc;tm' do. Vu'ngcO

m~t dQ tr~m do Iw 11Iqngday nhat

(vungVi$t Bac) cOngchi dc;ttCsigia t~

2790km2/tr~m(so vCsim~tdOtol thieu

quy d!nh cua vungtllang lrng la 1000

km2/trc;tm),cOnnaic6 m~td9thlla nhat

(vung Nam B9) len tCsi7896km2/trc;tm

(so vCsim~t dQtoi thieu qUi dinh cua

vungtllang lrng la 1875km /trc;tm).

Den nay, di~n Uchdieu tra, I~p

ban do dja chat thuy van mCsichu yeu

a ty I~ nho (tYI~ 1:500.000phu dllqc

di~n Uch toan quoc; ty 1$1:200.000

phUdllqc khoang72% di$n Uch),con

ban do ty 1$1:50.000- 1:25.000rat

c~n thiet cho congtac I~pquy hoc;tch,