báo cáo chuyên đề xói mòn đất do gió

 |
|

˜

 

uuu


QÔOR%

$MÔST

 4, V (; 

W *X (;  4@* -.<;* E (; )* (

DY B6 A '?; +  */ (; +8 / 7Z* ()*7K 3* +, [ +>=4,: / Z* H/=E  *

*2 *\ *Z: ;* 9B6 .6K?

Sj: C+12 /* Hk: *l: ;* HX +@ +1

/ +12 ()* (/=7\=/* *m 4n ,6 ( 4nH/ B6 A ' ()*=()* 7 )* / )* 99o=, o *8 3*?

Sj: /*

$, 9Z A ' 9: .6 Z )*=

()* 7 A ' < H *X (;  pb _D?

$X 7\ 7X G 7\ /*=7,: ' b4n ,6=25 Hq ;* 4n H/=+, +)2 / +, Z=

.; 4V

$X 7\

L )* 7 +12 3*^ +, +12 < */=,.9 9o DY *C 8 7Z ,.=

y:=A).?4 ,6 Hk: *l: >D.)* B6 *z 7 G D[*?  *q()* *z B6 G (/ HF

L )* 7 +12 3*^ +, +12 < */=,.9 9o DY *C 8 7Z ,.=

y:=A).?4 ,6 Hk: *l: >D.)* B6 *z 7 G D[*?  *q()* *z B6 G (/ HF

  *F .X *l: / Z* ()*  A.X +.

4 / D]?

Ô/ Z* ()*  H 7 .X ( *l: 9' 1 '

B6 <  *@ +| (w 7n C91 4n Z+ / +' D]=z 4, (u2 *56 ( +, G

C ( + +@ 9' G6 4,  *F B6

< +} +\*?

|>2 <=/ 3?8 @<C; DE/

)* 7 A '=)* +12 25=)* ()* 3*=9~ 7 *8 (X* 91 |=H] E*=(/ : <?< +, (K H

;*  HI +, b">

L P. ˆ.X=*l: 7/: /: , > 3* ()*7 7,: ' *. 70 f"*) : ‰ <=*:

G 1  df†9 *q ()* 7 7,: ' HX+* 4, +, : / :D] E< (6 2n D<?

L P Š;=D A ' ()* +, D] 7 +)2 (67n +, ;* 4) (K 8 *w AG6 < C(B6=

*: G 1  H:G ` †9 *q ()* 77,: ' Z?

L P$8 ë]=*l: 1 *q 5< l‹:+9Œ<*

D**.*l+,  9 *q ()* < */ +1 )* 4,

 * ()* 3* 7 A ' K )* * 1

++l=bg##Ž?

L P* <

9j6 V s *0 (j  H:G i""?"""<()* 7 7Z ,.?

s A ' 9: 3 9n AG6 < q* 8

*w  D:41 A ' 9:<  }+, 4) (K (/ -.< *B C/ 4n 9.68 G=4n *. 9.4, 4n [?

F *q +@ ()* A '=V *< D‡ 9\ 2 *0 ŒDll 4, s*bgieŽ

L .X H< */ 4, D‡ 9\ ()* @2 +v= 2G (/

/  *Z -.– ()*=E (; 4, / 9Z D.6 *:/=

*m ( AB6 9 2 /=+< w ] 0 @2 +v (F 2\ z DE DX : ()* 4, 2/* *F ]

2 *l: 1 7K 4J?

L F Z  / */ Z 5< *:/ < ()* 9:A ' ()* 9: *0 8 D‡ 9\ / 7 2/2] *0=

ÔG  Ô] 4,

/ 7Z