三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 我??(wo)國??(guo)是??(shi)農(nóng)??(nong)業(yè)?(ye)大?(da)國?(guo)?，也??(ye)是??(shi)遷??(qian)飛??(fei)昆??(kun)蟲??(chong)影??(ying)響??(xiang)的??(de)重??(zhong)點(diǎn)??(dian)區(qū)??(qu)域?(yu)?，尤??(you)其??(qi)是??(shi)我??(wo)國?(guo)東??(dong)部??(bu)?，處??(chu)在?(zai)東??(dong)亞?(ya)昆??(kun)蟲??(chong)遷??(qian)飛??(fei)場??(chang)中??(zhong)?，這??(zhe)是??(shi)在??(zai)東??(dong)亞??(ya)季?(ji)風(fēng)?(feng)等??(deng)多??(duo)種??(zhong)因??(yin)素?(su)共??(gong)同?(tong)影??(ying)響??(xiang)下??(xia)形??(xing)成??(cheng)的??(de)一??(yi)個??(ge)巨?(ju)大??(da)遷??(qian)飛??(fei)場??(chang)??。??我??(wo)國??(guo)公??(gong)布??(bu)的??(de)10種??(zhong)一??(yi)類??(lei)農(nóng)??(nong)作?(zuo)物??(wu)害??(hai)蟲??(chong)中??(zhong)?，就??(jiu)有?(you)8種??(zhong)具?(ju)有??(you)遷??(qian)飛??(fei)習(xí)??(xi)性??(xing)??。國??(guo)家??(jia)統(tǒng)??(tong)計??(ji)局??(ju)數(shù)??(shu)據(jù)??(ju)顯??(xian)示??(shi)?，“十??(shi)三??(san)五??(wu)”期??(qi)間??(jian)?，遷??(qian)飛?(fei)性??(xing)害?(hai)蟲??(chong)及??(ji)其??(qi)傳??(chuan)播??(bo)的??(de)作??(zuo)物??(wu)病??(bing)害??(hai)?，在??(zai)我??(wo)國??(guo)年??(nian)均??(jun)發(fā)??(fa)生??(sheng)15億?(yi)畝??(mu)次?(ci)以??(yi)上??(shang)?，每??(mei)年??(nian)潛??(qian)在??(zai)糧??(liang)食??(shi)損??(sun)失??(shi)超??(chao)過??(guo)800億??(yi)斤??(jin)???！ ±??(kun)蟲??(chong)為??(wei)什??(shen)么??(me)要??(yao)遷??(qian)飛??(fei)？??這??(zhe)其??(qi)實(shí)??(shi)是??(shi)一??(yi)種??(zhong)生??(sheng)存??(cun)策?(ce)略??(lve)??。??簡??(jian)單??(dan)來??(lai)說??(shuo)??，當(dāng)?(dang)一??(yi)個??(ge)地??(di)方??(fang)食??(shi)物??(wu)開??(kai)始??(shi)匱??(kui)乏??(fa)??，昆??(kun)蟲?(chong)就??(jiu)會??(hui)集??(ji)體??(ti)遷??(qian)飛??(fei)??，開??(kai)拓??(tuo)新??(xin)的??(de)食??(shi)物??(wu)來??(lai)源??(yuan)??。以??(yi)2019—2020年??(nian)危??(wei)害??(hai)全??(quan)球??(qiu)農(nóng)??(nong)業(yè)??(ye)的??(de)沙??(sha)漠??(mo)蝗??(huang)蟲??(chong)為??(wei)例??(li)??，它??(ta)們??(men)最??(zui)初??(chu)從??(cong)非??(fei)洲??(zhou)出??(chu)發(fā)?(fa)??，一??(yi)路??(lu)遷?(qian)飛??(fei)到??(dao)兩??(liang)河??(he)流??(liu)域??(yu)、南??(nan)亞??(ya)等??(deng)地??(di)??，數(shù)??(shu)量??(liang)龐??(pang)大??(da)??，速??(su)度?(du)很??(hen)快??(kuai)??，為??(wei)害??(hai)甚??(shen)巨?(ju)??。來??(lai)自??(zi)聯(lián)??(lian)合??(he)國??(guo)糧??(liang)農(nóng)??(nong)組?(zu)織??(zhi)的??(de)監(jiān)??(jian)測?(ce)數(shù)??(shu)據(jù)?(ju)顯??(xian)示??(shi)??，每??(mei)平??(ping)方??(fang)公?(gong)里??(li)中??(zhong)遷??(qian)飛??(fei)的??(de)沙??(sha)漠?(mo)蝗??(huang)蟲??(chong)??，一??(yi)天??(tian)就??(jiu)可??(ke)以??(yi)吃??(chi)掉?(diao)3.5萬??(wan)人??(ren)的??(de)口??(kou)糧??(liang)??。
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