1. Makhalidwe ndi kuopsa kwa mchenga ndi silt wosanjikiza
Pobowola maenje mumchenga wabwino kapena dothi lamatope, ngati madzi apansi ndi apamwamba, matope ayenera kugwiritsidwa ntchito kupanga mabowo oteteza khoma. Mtundu uwu wa stratum ndi wosavuta kutsukidwa pansi pa kayendedwe ka madzi chifukwa palibe adhesion pakati pa tinthu tating'onoting'ono. Chifukwa chobowola chozungulira chimatengera nthaka kulowa mu dzenje, dothi lobowola limapangidwanso ndi chidebe chobowolera pansi. Chidebe chobowola chimayenda m'matope, ndipo kuthamanga kwa madzi kunja kwa chidebe chobowola ndi kwakukulu, komwe kumakhala kosavuta kuchititsa kukokoloka kwa khoma la dzenje. Mchenga wotsukidwa ndi khoma la dzenje umachepetsanso chitetezo cha khoma la matope oteteza khoma. Zimatha kuyambitsa mavuto monga chitetezo cha khosi komanso ngakhale kugwa kwa dzenje.
2. Pamene njira yomangira pobowola mozungulira itengera kutetezedwa kwa matope mumchenga woyamba wabwino kapena dothi la silt, izi ziyenera kuganiziridwa:
(1) Chepetsani bwino kutsitsa ndi kukoka liwiro la pobowola, kuchepetsa kuthamanga kwa matope pakati pa chidebe chobowola ndi khoma la dzenje, ndikuchepetsa kukokoloka.
(2) Wonjezerani Moyenerera Ngongole ya kubowola mano. Wonjezerani motalikirana pakati pa khoma la bowo ndi khoma lakumbali la ndowa.
(3) Wonjezerani moyenerera dera la dzenje lamadzi mumtsuko wobowola, kuchepetsa kuthamanga koipa pamwamba ndi pansi pa chidebe chobowola panthawi yochotsa, ndiyeno muchepetse kuthamanga kwa matope mu dzenje laling'ono.
(4) Konzani chitetezo cham'matope chapamwamba kwambiri, kuyeza nthawi yake mchenga wamatope omwe ali mu dzenje. Chitani zinthu zogwira mtima mu nthawi yopitilira muyeso.
(5) Onani kulimba kwa chivundikiro chapansi cha chidebe chobowola mutatseka. Zikapezeka kuti kusiyana komwe kumabwera chifukwa cha kupotoza ndi kwakukulu, kumayenera kukonzedwa munthawi yake kuti kupewe kutulutsa mchenga.
Nthawi yotumiza: Feb-23-2024