Thursday, 13 May 2010

Vegetative Methods of Soil Conservation

I have written this short introductory notes about the vegetative methods of controlling Soil Erosion in 1998. This is written in very simple languages however in many places we can see many technical jargons. The main objective of the article was just convey the message about the simple way to reduce soil erosion by using the locally available materials. Working as the programme officer in the Myagdi district, I have found that people thinks that we can stop soil erosion only by putting gabion and stones and there used to be thousands of demands and petitions to the district development committe, so I wrote this short article to emphasize the vegetative methods of controlling soil erosion and small land slides.

Today, I found this article saved on my archive. I enjoyed the nepalese typing by myself, but couldnot put map drawn by me to illustrate the construction methods. Anyway, I am very happy to share my past work. Comments are more than welcome...

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xfjf, kfgL nufot ljleGg tTjx?sf] k|efjn]] lg/Gt/ df6]f ju]/ hfg] cyjf PSsf;L k}x|f]sf] ?kdf v;]/ hfg] k|lqmof g} e"-Ifo xf] . df6f] / kfgL k|s[lt kbQ b'O{ k|d'v ;Dkbf x'g\ . logLx?sf] ;+/If0f / ;d'lrt pkof]udf g} dfgj pGglt lglxt x'G5 . oL b'O{ tTjdf lge{/ 5 , xfd|f] ;d:t s[lif k|0ffnL, t;y{ df6f] / kfgLnfO{ hLjgsf] cfwf/ klg elgPsf] xf] . z'? z'?df hldg / hg;+Vof jLr ;G'tng lyof] / e"-Ifo, af9L k}x|f]sf] k|sf]k klg sd ;'lggdf cfpYof] ha b]lv hg;+Vofdf cToflws j[l4 eof], tjb]lv k|fs[lts ;Dkbf dflysf] dflg;sf] rfk klg j9]/ uof] .

clgoGqt jg km8fgL, rl/r/0f, s[lifsf nflu cg'ko'St hUufx?df v]tL ug{"kg]{ jfWotf, cg'ko'St / cj}1flgs v]lt k|0fnLsf cltl/St ef}uf]lns ?kdf w]/} sdhf]/ / gofF lsl;dsf kxf8 / lxdfnx?sf] cjl:ylt g} e"-Ifo k}x|f]sf] k|d'v sf/0f x'g .

e"-Ifon] hldgsf] pTkfbsTj, kof{j/0f, hLpwgsf] ;+/If0f cflb cflb df k|lts"n c;/ kfb{5 . e"-Ifo jf9L k}x|f]x?nfO{ Engineering Structure x? jgfP/ lgoGq0f ug'{ vlr{nf,] k|fljlws ?kdf bIf hgzlQm cflb rflxg] x'g hfG5 t;y{ Engineering Structure xcsf] lgdf{0fsf ljsNksf ?kdf jfg:klts (Vegetative) ljlwnfO{ lnOG5 . :yfgLo lgdf{0f ;fdfu|L, :yfgLo zLk / ;fwgsf] k|of]u ubf{ e"-Ifo k}x|f] cflbnfO{ lgoGqt u/L k"j{ ?kdf k'g{:yfkgf ug{ jfg:klts ljlw (Vegetative Method) nfO{ pko'Q, dflgG5 . elgG5 Ps jf]/f l;d]G6 eGbf Ps jf]/f dn g} e"-Ifo lgoGq0fsf] lglDt j9L pkof]uL x'G5 . o;n] s] k'li6 u5{ eg] :yfO{ k|sf/sf ef}lts ;+/rgf eGbf c:yfO{ k|sf/sf jfg:klts / h}ljs (Biological) k|ljlw j9L pko'Qm x'G5 / PSnf PSn} ?kdf Mechanical (Engineering) / Biological -h}ljs_ ljlw eGbf lo b'j}sf] ;+of]hg Biological + Engineering = Bioengineering j9L pkof]uL x'G5 .


jfg:klts k|ljlwsf kmfObfx? M

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  • of] :yfgLo ;fwg / zLk jf6 jgfpg ;lsg] ePsf]n] ;:tf] kg]{,
  • ;fwf/0fto nfdf] ;do;Dd l6Sg],
  • k|s[ltdf s'g} k|lts'n c;/ gk'-ofpg],
  • :yfgLo s[ifs4f/f ;lhn} jgfpg ;lsg]

e"-;+/If0fsf lglDt k|of]u ul/g] @ k|d'v jfg:klts k|ljlwx? M

  • Brushwood checkdam
  • Log dam

s_ xfFuf jLufjf6 jgfOg] jfFw (Brush wood check dam)M

vf]N;] e"-Ifo ;fgf] ltgf] klx/f,] elTsPsf]/elTsg ;Sg] uf]/]6f] jf6f] cflbsf lgoGq0f / l:y/tfsf]] lgDtL :yfgLo ?kdf pknJw x'g] xfFuf ljufjf6 Brushwood Structure jgfOG5 . vf]N;] e"-Ifo (Gully erosion) lgoGq0fsf nflu jgfOg] Brushwood -xfFufljuf_ check dam sf] j0f{g tn ul/G5 .

;fgf]ltgf] vf]N;fx? j9b} ghfcf]; / o;sf] lgoGq0f, ug{ ;lsof];\ eg]/ vf]N;f (Gully) sf] () + df !) -!@ ;]= dL= Jof; (Diameter) ePsf vDjf (Post) x? qmdz ufl8G5 / o;df tn lrqdf b]vfP h:t} u/L @-# ;]=dL= Jof; ePsf ?v lj?jfsf xfFuf ljufx? Ps cfk;df jlnof] l;t jfFw]/ Brush wood check dam tof/ ul/G5 .

lgdf{0f ljlw M

  • of] k|fo u/L @ dL= eGbf sd ulx/f] / %-^ ld= eGbf ;fFu'/f] vf]N;fx?df jgfOG5 .
  • o;sf] prfO{ j9Ldf ! ld6/ ;Dd /fVg ;lsG5 .
  • o;df ufl8g] vDjf (Post) sf] nDjfO{ ! -!=% ld= ;Dd x'g ;S5 / vDjfsf] Ps ltxfO efu hldg d'lg ufl8Psf] x'g'kb{5 . / b'O{ vDjf jLrsf] b'/L %) ;]=dL= eGbf j9L x'g' x'b}g .
  • vDjfsf] df]6fO{ !) -!% ;]=dL= Jof; (Diameter) ePsf] x'g'kb{5 .
  • vDjfsf jflwg] xfFufljuf (Brush wood ) x?sf] df]6fO{ #$-% ;]= dL= Jof; ePsf] x'g'kb{5 / o;nfO{ vDjfdf jlnof] l;t df6f] gjUg]u/L l5b| g5f]8]/ jfFWg' kb{5 . vf]N;fsf] lsgf/fdf b'j}lt/ #)/#) ;]= dL= leq ;Dd Brush wood k'-ofpg'kb{5 .
  • Brushwood check dam df j9L ePsf] kfgL dflyjf6 ju]/ hfgsf lglDt Concave jf Rectangular -cfoftfsf/_ kfgL jUg] jf6f] Spillway jgfpg'kb{5 .

o;sf] lglDt k|of]u x'g] k|hflt

  • plt;, js}gf], j};, vGo", jfF; cflb cflb .


v_ d"9] jfFw (Log dam) M

of] jgfpg] ljlw klg dfly j0f{g ul/Psf] xfFufljuf jfFw (Brush wood check dam ) h:t} xf] . dflysf] eGbf 7"nf vf]N;fx? lgoGq0fsf nflu / :yfgLo ?kdf g} j9Ldfqfdf !) -!% ;]= dL= eGbf j9L Jof; df]6fO ePsf d"9fx? (Logs) kfOG5g eg] o:tf] d"9] jfFw jgfOG5 .

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!= o;sf] hldgsf] ;txjf6 prfO{ j9Ldf !=% dL= ;Dd x'g'kb{5 .

@= o;df k|of]u ul/g] d"9f (Log) x?sf] nDjfO{ != %-@= ) dL= ;Dd / kftnf] 5]psf] Jof; 8 ;]= dL eGbf sd x'g' x'b}g . h;sf] !/# -Ps ltxfO{_ efu hldgd"lg ufF8g' kb{5 .

#= Logs x?nfO{ dfly lrqdf b]vfP h:t} 7f8f] (Vertical) / t];]f{ (Horizontal) b'O{ k|sf/n] /flvG5 . b'O6f 7f8f] (Vertical) txx?sf] jLrdf t];f]{ (Horizontal) Log /flvG5 / Horizontal -t];f{]_ tx hldgsf] lsgf/fsf] b'j}lt/ %)-%) ;]=dL= leq k;]sf] x'g'kb{5 .

$= o;sf] :yfloTjsf] nflu j9L ePsf] e]n kfgL ;'/lIft ?kn] ju]/ hfgsf lglDt e]n kfgL jUg] jf6f] (Spill way) jgfpg' kb{5 . o;sf] ulx/fO{ )=% dL= / nDjfO{ ! b]lv @ dL= ;Ddsf] cfoftsf/ jgfpg' k5{ .

o;sf] cnfjf s]xL Bio-engineering- -h}ljs Ol~hlGol/ยช_ ljwLx? klg k|of]u ug{ ;lsG5 h"g o;k|sf/ 5g M

  • Mulching -5fwfj/)f_
  • Sodding -3f; /fVg]_
  • Cordons-le/fnf]df e"-Ifo /f]Sg] pkfo
  • Grooves ,, ,, ,,
  • Wattle ,, ,, ,,
  • Fascines ,, ,, ,,
  • Brush mattresses: emf8L tx Joj:yfkg
  • Bamboo Crib dams jfF;sf] rf]of jf lr/]/ jfFw jgfpg] .


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1 comment:

Baburam said...

Perfect recovery through this excellent article. Its equally valid and bears scope though couple of years old article.