Gulu lathu loyamba lazinthu zomanga miyala zopanda kuphulika zidatuluka mu 2011 pansi pa kafukufuku wovuta ndi chitukuko cha gulu lotseguka laukadaulo wanzeru.Mndandanda wazinthu zakhazikitsidwa motsatizana, ndipo adalandira kutamandidwa mwachangu kuchokera kwa ogwiritsa ntchito chifukwa chachitetezo chawo cha chilengedwe, kuchita bwino kwambiri, komanso kutsika mtengo kosamalira.Ukadaulo wotsogola wosweka miyala wapeza ziphaso zingapo zapatent mdziko.Zogulitsazo zimagulitsidwa m'dziko lonselo ndikutumizidwa ku Russia, Pakistan, Laos ndi madera ena.Amagwiritsidwa ntchito kwambiri pomanga misewu, kumanga nyumba, kumanga njanji, migodi, permafrost stripping, etc.
