綠化苗木一旦受凍和雪壓後,應及時采取科學措施進行補救,盡快使樹體恢複生機,減少損失。
綠化苗木突遇連日大雪後,應及時清除枝幹上積雪,避免枝幹被壓斷,特別是常綠樹種和一些古樹名木,注意大雪期間保護。
凍dong害hai造zao成cheng落luo葉ye的de植zhi株zhu,要yao及ji時shi摘zhai除chu枯ku萎wei的de葉ye片pian,減jian少shao樹shu體ti水shui分fen的de消xiao耗hao。凍dong後hou樹shu體ti的de抗kang寒han能neng力li進jin一yi步bu下xia降jiang,枝zhi幹gan容rong易yi發fa生sheng日ri灼zhuo,還hai應ying當dang及ji時shi做zuo好hao枝zhi幹gan的de保bao護hu、培土覆蓋等措施,以減輕凍害的危害。
donghaibijiaoqingdezhizhu,xiujianshangkeyicaiquyicezhideduanjiegengxinweizhu,zaimengyaqianjinxing,yicufaxinshao。tongshi,yaojishishifei,bofeiqinshi,yidanfeiweizhu,yekepenshi0.2%~0.3%磷酸二氫鉀混合液。
donghaifashengchengdujiaoyanzhongdezhizhu,genjudonghaichengdu,shishishiliangxiujian。zhiganshoudong,fanyingjiaoman,yuweishoudongzhigandejiexianburongyizaiduanqineifenqing,gubuyingdangdajiedaju,yichunshaomengyachuqijianqukusibufenweiyi。xiujianhoudeshangkouyingdangtuyibaohujihuozhedongwuyoudeng。
凍(dong)死(si)林(lin)木(mu)要(yao)及(ji)時(shi)清(qing)理(li)。遭(zao)遇(yu)雪(xue)壓(ya)凍(dong)害(hai)後(hou),林(lin)木(mu)中(zhong)衰(shuai)弱(ruo)木(mu)和(he)枯(ku)死(si)木(mu)增(zeng)加(jia),為(wei)蛀(zhu)幹(gan)害(hai)蟲(chong)發(fa)生(sheng)發(fa)展(zhan)提(ti)供(gong)了(le)有(you)利(li)的(de)環(huan)境(jing)條(tiao)件(jian),所(suo)以(yi)冰(bing)凍(dong)災(zai)害(hai)過(guo)後(hou),要(yao)及(ji)時(shi)清(qing)理(li)林(lin)中(zhong)的(de)枯(ku)死(si)木(mu)及(ji)其(qi)枝(zhi)條(tiao)。
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