Daraasad dhowaan lagu daabacay joornaalka Forest Ecology and Management ayaa daaha ka qaaday in abuurista daldaloolo jireed oo ku yaal saqafyada kaynta ay si weyn kor ugu qaadi karto caafimaadka iyo adkeysiga geedaha cirifka bari ee ka hortagga infestation by hemlock woolly adelgid. Helitaankan ayaa siiya kaymaha qalab kale oo qiimo leh oo lagu ilaalinayo dhirtan deegaanka muhiimka ah.
Daraasadu waxay bilaabatay 2017, iyada oo cilmi-baarayaal ka socda North Carolina State University iyo Waaxda Beeraha ee Mareykanka ay doorteen 105 geed hemlock bari oo ku yaal kaymaha qaranka iyo gobolka ee ku teedsan buuraleyda Appalachian. Saynis yahanadu waxay abuureen dalool yar yar ama weyn oo ku wareegsan geedaha cirifka ah iyagoo jaray ama dilay geedaha ku hareeraysan tartanka. Markii la kormeeray caafimaadka geedaha dhowr sano, cilmi-baarayaashu waxay ogaadeen in geedaha ku yaal meelaha bannaanka ah ay muujiyeen horumar la taaban karo oo caafimaadkooda guud marka la barbar dhigo kooxda xakamaynta, kuwaas oo aan lahayn daldaloolo abuuray hareerahooda.
Samaynta daldaloolo ku jira saqafka kaynta waxay wanaajisaa helitaanka geedaha si ay u helaan kheyraadka muhiimka ah sida biyaha iyo nafaqooyinka, taas oo ka caawisa inay la dagaallamaan cayayaanka adelgid. Inkasta oo waxtarka daawaynta ay kala duwan tahay gobol ahaan, iyada oo goobaha koonfureed ee ugu badan ay la kulmeen faa'iidooyinka ugu muhiimsan, natiijooyinka guud ee daraasaddu waxay ahaayeen kuwo dhiirigelin leh. Awood-siinta geedaha si ay u sii wadaan soo saarista koritaan cusub sannadkiiba, farqiga u oggolaaday cirifka bari in ay "ka baxaan" saamaynta cayayaanka soo weeraray, ugu yaraan si ku meel gaar ah.
Qorayaasha daraasaddu waxay ku nuuxnuuxsadeen in silviculture, ku-dhaqanka maaraynta kaymaha, ay tahay qayb muhiim ah oo ka mid ah istaraatiijiyadda maaraynta cayayaanka oo dhamaystiran si loo ilaaliyo cidhifyada bari. Silviculture kaliya kuma koobna badbaadada geedaha laakiin sidoo kale waxa ay fududaysaa abuuritaanka ugaarsada kuwaas oo si dabiici ah u xakameeya dadka adelgid, taas oo suurtogal ah in ay yarayso baahida faragelinta kiimikada.
Cilmi-baarista mustaqbalka waxay diiradda saari doontaa istaagga hemlock halkii ay ka ahaan lahayd geedo gaar ah, iyadoo la eegayo jawaabta laga helayo daldaloolada saqafka ah ee kaymaha cirifka saafiga ah. Iyadoo la sii baarayo faa'iidooyinka silviculture ee noocyada kala duwan ee kaynta, daraasaddan waxay gacan ka geysaneysaa ilaalinta iyo ilaalinta cirifka bari ee khatarta joogtada ah ee ka imanaysa hemlock woolly adelgid.
Ilo:
- Albert E. Mayfield III et al, Farqiga u dhexeeya daaqadaha Silvicultural waxay hagaajiyaan caafimaadka iyo koritaanka cirifka bari ee ay ku jiraan Adelges tsugae ee koonfurta Appalachian Mountains, Ecology Forest and Management (2023). DOI: 10.1016/j.foreco.2023.121374
- Jaamacadda Gobolka North Carolina