Chiratidzo chitsva chakavakirwa pasatellite chekuona nzvimbo dzinodya shiri dzemumvura dzinodya zvinomera.

Chinyorwa:Zviratidzo zveEcological, 99, mapeji 83-90.

Mhando dzeshiri (Avian):Goose guru rine mativi machena (Anser albifrons)

Pfupiso:

Kugoverwa kwezviwanikwa zvekudya chinhu chakakosha pakusarudzwa kwenzvimbo dzekugara. Shiri dzemumvura dzinodya uswa dzinoda zvirimwa zvinokura pakutanga (kubva pakutanga kwekukura kwezvirimwa kusvika padanho repamusoro rekudya kwezvikafu) sezvo izvi zvichipa simba rakawanda rekudya. Danho iri rekukura kwezvirimwa harina kunyatsoonekwa nezviratidzo zvemiti zvinobva musatellite, zvinotarisa pane biomass yezvirimwa (semuenzaniso, Enhanced Vegetation Index, EVI) kana kukura kwezvirimwa (semuenzaniso, musiyano weEVI pakati pezuva razvino nerapfuura, diffEVI). Kuti tivandudze kugadzira nzvimbo dzakakodzera mafuro eshiri dzemumvura dzinodya uswa, tinokurudzira chiratidzo chitsva chekukura kwezvirimwa chakavakirwa pasatellite chekukura kwezvirimwa zvepakutanga (ESPG). Tinofungidzira kuti shiri dzemumvura dzinodya uswa dzinoda zvirimwa pakutanga kwekukura kwezvirimwa munguva yekukura uye tinosarudza zvirimwa zvine ESPG yekupedzisira munguva isingakuri. Tinoshandisa data rekutevera satellite reshiri makumi maviri dzakakura dzine mativi machena (Anser albifrons) dzinogara munguva yechando muRwizi rweYangtze kuti tisimbise fungidziro dzedu. Tinovaka mamodheru akajairwa ekugoverwa kwegondo panguva yekukura nekusakura uye tinoenzanisa mashandiro eESPG nezviratidzo zvekukura kwezvirimwa zvinoshandiswa kazhinji (EVI ne diffEVI). Munguva yekukura, ESPG inogona kutsanangura 53% yemusiyano mukugoverwa kwegondo, ichipfuura EVI (27%) ne diffEVI (34%). Munguva yekusakura, kuguma kweESPG chete ndiko kunonyanya kukanganisa kugoverwa kwegondo, zvichitsanangura 25% yemusiyano (ESPG: AUC = 0.78; EVI: AUC = 0.58; diffEVI: AUC = 0.58). Chiratidzo chekukura kwezvirimwa chitsva ESPG chinogona kushandiswa kuvandudza mamodheru ekugoverwa kwegondo dzinodya miriwo uye nokudaro kutsigira kuedza kuchengetedza shiri dzemumvura uye kutarisira nzvimbo dzakanyorova.