Kuti muwongolere mtengo wa njira zopangira mankhwala ndikusunga zokolola zabwino kwambiri, muyenera kujambula madzi ofunikira kuti muwunikenso labotale nthawi zonse. Kusankha zitsanzo (komwe kumadziwikanso kuti spot sampling, field sampling, kapena rational sampling) kumathandiza kutsimikizira momwe zinthu zilili ndikutsimikizira kuti chinthu chomwe chapangidwa chikukwaniritsa zofunikira zamkati kapena za makasitomala.
Malamulo oyambira a zitsanzo
1: Chitsanzocho chiyenera kuyimira momwe ntchito ikuyendera, ndipo chofufuziracho chiyenera kugwiritsidwa ntchito kuchotsa chitsanzocho pakati pa chitoliro cha njira kuti chipewe kusintha kwa gawo panthawi yonyamula chitsanzo.
2: Chitsanzocho chiyenera kukhala munthawi yake. Kufupikitsa nthawi yonyamulira kuchokera pamalo ochotsera zinthu kupita ku labotale ndikothandiza kuonetsetsa kuti momwe zinthu zilili zikuwonetsedwa bwino.
3: Chitsanzocho chiyenera kukhala choyera. Pewani malo opanda mpweya m'chidebe cha chitsanzo ndipo lolani kuti makina oyeretsera zitsanzo azitsukidwe bwino kuti achepetse kuipitsidwa.
Taganizirani za madzi a njira yomwe mpweya umasungunuka. Ngati kutentha kukukwera ndipo kuthamanga kukuchepa, mpweya wosungunuka ukhoza kuwira kuchokera mu chitsanzo. Kapena taganizirani za chitsanzo cha mpweya chokhala ndi kutentha kochepa komanso kuthamanga kwakukulu, zomwe zingayambitse madziwo kusungunuka ndikusiyana ndi chitsanzo. Pazochitika zonse, kapangidwe ka chitsanzocho kamasintha kwambiri, kotero sichingaimirenso momwe zinthu zilili.
Chifukwa cha zifukwa zomwe zili pamwambapa, ndikofunikira kugwiritsa ntchitomabotolo achitsanzokusonkhanitsa mpweya kapena mpweya wosungunuka kuti ukhale ndi gawo loyenera komanso kuti chitsanzocho chikhale choyimira bwino. Ngati mpweyawo ndi woopsa, silindayo imathandizanso kuteteza katswiri wa chitsanzocho ndi chilengedwe ku utsi kapena utsi wotuluka.
Nthawi yotumizira: Feb-17-2022