Chizindikiro chatsopano chozikidwa pa satelayiti chozindikiritsa malo odyetsera mbalame zam'madzi zodya zomera.

Magazini:Zizindikiro za Zachilengedwe, 99, tsamba 83-90.

Mitundu (ya mbalame):Goose wamkulu wooneka ngati white-fronted (Anser albifrons)

Chidule:

Kugawa chakudya ndi chinthu chofunikira kwambiri pakusankha malo okhala. Mbalame zam'madzi zodya zomera zimakonda zomera zoyamba kukula (kuyambira pachiyambi cha kukula kwa zomera mpaka kufika pachimake pa michere ya michere) chifukwa izi zimapereka mphamvu zambiri zodya. Gawo la kukula kwa zomera silinadziwike mokwanira ndi zizindikiro za zomera zomwe zimagwiritsidwa ntchito kwambiri ndi satelayiti, zomwe zimayang'ana kwambiri za zomera (monga Enhanced Vegetation Index, EVI) kapena kukula kwa zomera (monga, kusiyana kwa EVI pakati pa tsiku lamakono ndi lapitalo, diffEVI). Kuti tiwongolere mapu a malo oyenera odyetserako ziweto za m'madzi zodya zomera, tikupereka chizindikiro chatsopano cha kukula kwa zomera chozikidwa pa satelayiti cha kukula kwa zomera koyambirira (ESPG). Tikuganiza kuti mbalame zam'madzi zodya zomera zimakonda zomera pachigawo choyamba cha kukula kwa zomera panthawi yolima ndikusankha zomera zomwe zimakhala ndi ESPG yochedwa panthawi yomwe sizikukula. Timagwiritsa ntchito deta yotsatirira satelayiti ya atsekwe 20 akulu okhala ndi nkhope yoyera (Anser albifrons) m'nyengo yozizira m'mphepete mwa mtsinje wa Yangtze kuti titsimikizire zomwe talosera. Timapanga mitundu yolunjika yogawa atsekwe nthawi yolima ndi yosalima ndipo timayerekeza momwe ESPG imagwirira ntchito ndi zizindikiro zokulira zomera zomwe zimagwiritsidwa ntchito nthawi zambiri (EVI ndi diffEVI). Mu nyengo yolima, ESPG imatha kufotokoza 53% ya kusiyana kwa kugawa atsekwe, zomwe zimapangitsa kuti EVI (27%) ndi diffEVI (34%) ikhale yopambana. Mu nyengo yosalima, kutha kwa ESPG kokha ndiko kumakhudza kwambiri kugawa atsekwe, kufotokoza 25% ya kusiyana (ESPG: AUC = 0.78; EVI: AUC = 0.58; diffEVI: AUC = 0.58). Chizindikiro chatsopano cha kukula kwa zomera ESPG chingagwiritsidwe ntchito kukonza mitundu ya kugawa kwa mbalame zam'madzi zomwe zimadya zomera motero kuthandizira khama loteteza mbalame zam'madzi ndi kusamalira madambo.