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4 个结果
  • 简介:ElevenspeciesofalieninvasiveforestinsectpestshavebeenfoundsincetheearlytimethatinsectspecieshadbeentakenrecordedinChina.Theirorigins,inlanddistribution,invasivetime,hosts,causingdamagearerecordedinthispaperfortheevidenceofbiologicalinvasion.Theircontrolmethodsarealsostudiedordiscussed.

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  • 简介:BasedontheresultsofmonitoringtheenvironmentofChinaNationalAfforestationProject(NAP)andtheinvestigationoninsectpestsanddiseasesin1.2millionhaofplantations,theauthorelaboratestheareas,speciesandcausesofinsectpestsanddiseasesoccurringintheproject'sareasandprovidesfundamentaltheoryforguidingenvironmentalprotectionandplantationestablishmentinasoundway.Sincetheproject'sactivitiesstrictlyfollovvedtheguidelineofenvironmentalprotectioninpast...

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