春雨綿綿:及時收聽收看天氣預報,根據預報的風力大小采取合理的應對措施是預防大風危害的基礎。一般來說,5級以下的北風對草苫和棚膜沒有太大威脅,但是4級(ji)的(de)西(xi)風(feng)或(huo)東(dong)風(feng)卻(que)能(neng)吹(chui)翻(fan)草(cao)苫(shan),因(yin)此(ci)要(yao)針(zhen)對(dui)預(yu)報(bao)風(feng)力(li)的(de)大(da)小(xiao)和(he)風(feng)向(xiang),提(ti)前(qian)對(dui)棚(peng)麵(mian)覆(fu)蓋(gai)物(wu)進(jin)行(xing)壓(ya)實(shi)。隨(sui)著(zhe)溫(wen)度(du)的(de)升(sheng)高(gao),現(xian)在(zai)大(da)棚(peng)即(ji)使(shi)不(bu)放(fang)浮(fu)膜(mo),放(fang)草(cao)苫(shan)後(hou)棚(peng)內(nei)的(de)溫(wen)度(du)也(ye)能(neng)維(wei)持(chi)在(zai)18℃以(yi)上(shang)。但(dan)是(shi)在(zai)沒(mei)有(you)撤(che)草(cao)苫(shan)以(yi)前(qian),也(ye)不(bu)要(yao)急(ji)於(yu)將(jiang)浮(fu)膜(mo)撤(che)掉(diao),當(dang)遇(yu)到(dao)突(tu)發(fa)性(xing)的(de)大(da)風(feng)及(ji)降(jiang)雨(yu)天(tian)氣(qi)時(shi)迅(xun)速(su)將(jiang)浮(fu)膜(mo)放(fang)下(xia),可(ke)避(bi)免(mian)草(cao)苫(shan)被(bei)大(da)風(feng)吹(chui)翻(fan)或(huo)被(bei)雨(yu)淋(lin)濕(shi)。
流霞:ruguoguadeshipianxifenghuoxifeng,duiyugudingzaipenghouposhangdefumo,zhixujiangfumoxiceyahaojike,dongcebuya,zheyangjishiyoushaoliangfengchuirufumodibuxingchengqibao,qibaozhongdekongqiyehuihenkuaibeiganchu,shifumojintiezaicaoshanshang,yimiandafengchuiqifumo,chuifancaoshan;dangguapiandongfenghuodongfengshizecaiquxiangfandeyamofangshi。duiyudapengmoyeshiyiyang,kezaidapengshanqiangdedibuxiangshangyayikuaibomo,jiangpengmoyushanqiangdejiehebudangzhu,yifangzhidafengcongpengmodedibuchuirujiangpengmochuipo。
老農:拱棚附近若有高大物體,應增加壓膜繩的數量,把拱棚出入口封堵嚴密,阻止氣流進入。
龍飛:對dui於yu拱gong棚peng的de加jia固gu,可ke在zai拱gong棚peng的de東dong西xi兩liang側ce底di部bu各ge設she置zhi一yi塊kuai防fang風feng膜mo,防fang風feng膜mo的de寬kuan度du要yao能neng從cong拱gong棚peng一yi側ce的de地di下xia到dao最zui上shang部bu的de通tong風feng口kou。例li如ru刮gua西xi風feng時shi,將jiang西xi側ce的de防fang風feng膜mo架jia起qi,這zhe樣yang就jiu能neng避bi免mian大da風feng從cong拱gong棚peng西xi側ce的de通tong風feng口kou進jin入ru棚peng中zhong,防fang止zhi風feng大da吹chui破po棚peng膜mo。如ru果guo風feng力li超chao過guo6級ji,還hai要yao將jiang拱gong棚peng背bei風feng一yi側ce的de通tong風feng口kou打da開kai,保bao證zheng棚peng內nei氣qi流liu排pai出chu。對dui於yu東dong西xi方fang向xiang的de拱gong棚peng,要yao注zhu意yi加jia強qiang兩liang側ce棚peng膜mo的de抗kang風feng能neng力li,一yi是shi要yao將jiang進jin出chu口kou封feng堵du嚴yan密mi,二er是shi在zai兩liang側ce棚peng膜mo上shang多duo設she置zhi壓ya膜mo繩sheng。不bu過guo需xu要yao注zhu意yi的de是shi,棚peng室shi兩liang側ce的de膜mo有you一yi定ding傾qing斜xie角jiao度du,使shi用yong壓ya膜mo繩sheng不bu好hao固gu定ding,可ke用yong5厘米左右的寬布條,與棚膜呈垂直角度斜拉在地錨上。
天道酬勤:安(an)裝(zhuang)卷(juan)簾(lian)機(ji)的(de)大(da)棚(peng)具(ju)有(you)一(yi)定(ding)的(de)抗(kang)風(feng)能(neng)力(li),但(dan)是(shi)抗(kang)風(feng)能(neng)力(li)有(you)限(xian),一(yi)旦(dan)風(feng)力(li)過(guo)大(da),大(da)風(feng)將(jiang)草(cao)苫(shan)吹(chui)翻(fan)時(shi)就(jiu)會(hui)直(zhi)接(jie)將(jiang)草(cao)苫(shan)的(de)固(gu)定(ding)處(chu)撕(si)裂(lie),造(zao)成(cheng)的(de)損(sun)失(shi)比(bi)不(bu)安(an)裝(zhuang)卷(juan)簾(lian)機(ji)的(de)大(da)棚(peng)更(geng)重(zhong),所(suo)以(yi)不(bu)要(yao)完(wan)全(quan)依(yi)靠(kao)卷(juan)簾(lian)機(ji)進(jin)行(xing)防(fang)風(feng),當(dang)風(feng)力(li)大(da)於(yu)5級時,為避免發生意外,應將浮膜放下進行防風。
( 來源:河南科技報 )
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