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全國耕地土壤墑情總體適宜 有利于秋收秋種 局部耕地土壤偏濕 需及時排濕散墑

2020-11-04 09:07:40 來源：農(nóng)業(yè)農(nóng)村部發(fā)展規(guī)劃司 閱讀量：18317 評論

導(dǎo)讀：目前，全國秋糧收獲接近尾聲，各地秋冬種工作全面展開。部遙感應(yīng)用中心利用衛(wèi)星遙感影像，結(jié)合氣象條件，對全國耕地土壤墑情進行了監(jiān)測。

　　【農(nóng)機網(wǎng) 科技創(chuàng)新】 目前，全國秋糧收獲接近尾聲，各地秋冬種工作全面展開。部遙感應(yīng)用中心利用衛(wèi)星遙感影像，結(jié)合氣象條件，對全國耕地土壤墑情進行了監(jiān)測。結(jié)果顯示：全國耕地土壤墑情總體適宜，適宜比例為83.1%，與去年同期持平，有利于秋收秋種和冬小麥出苗生長；但局部地區(qū)耕地土壤偏濕，過濕比例為3.0%，比去年同期高2.1%，需及時排濕散墑。
 
　　偏濕地區(qū)主要集中在華南、西南、華中和華東等地局部地區(qū)。華南地區(qū)廣西、海南大部及廣東南部受“浪卡”“沙德爾”“莫拉菲”等臺風(fēng)影響，降水偏多2.5成以上，部分低洼農(nóng)田受淹。西南地區(qū)重慶、貴州、云南因前期降水偏多3成以上，日照偏少3成以上，氣溫偏低2度左右，耕地土壤過濕比例分別為10.2%、7.3%、9.7%。華中地區(qū)中北部以及華東地區(qū)沿江區(qū)域出現(xiàn)陰雨寡照天氣，不利于水稻收獲和冬油菜苗期生長。此外，華東局部地區(qū)耕地土壤表墑偏差，但總體對秋收秋種影響不大。安徽北部和江蘇北部受秋播以來降水偏少影響，表層土壤略缺墑，未播田塊需造墑秋播。
 
　　未來一段時間，據(jù)氣象部門預(yù)計11月上旬全國普遍降溫4-8度。華南、華中和華東等地局部地區(qū)的陰雨天氣未來仍將持續(xù)，耕地土壤過濕比例有增加趨勢，要及時排濕散墑。東北地區(qū)北部降水將偏多2-5成或會出現(xiàn)雨雪天氣，西南東部和西南部、華中西部將出現(xiàn)陰雨天氣，華南南部受臺風(fēng)影響，累計降雨量預(yù)計較常年偏多5成。華東地區(qū)短期內(nèi)降水偏少，北部缺墑現(xiàn)狀可能無法緩解，應(yīng)及時引導(dǎo)做好冬小麥苗期生長的保墑造墑工作。
 

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