Chiratidzo chitsva chesetiraiti yekuona nzvimbo dzekudyira dzepasitiotemporal dzeshiri dzemvura.

Journal:Ecological Indicators, 99, pp.83-90.

Zvisikwa(Avian):Huru chena-kumberi hanzi (Anser albifrons)

Abstract:

Kugovewa kwezviwanikwa zvechikafu ndicho chinhu chakakosha pakusarudza pekugara. Herbivorous waterfowl inofarira mbesa dzekukura kwechirimwa (kubvira pakutanga kwechirimwa kusvika panhongonya yezvinovaka muviri) sezvo izvi zvichipa mwero wepamusoro wekutora simba. Iyi nhanho yekukura kwechirimwa haina kubatwa zvizere neanowanzo shandiswa setiraiti-yakatorwa zvinomera zviratidzo, izvo zvinotarisa pachirimwa biomass (semuenzaniso, Enhanced Vegetation Index, EVI) kana kushingaira kukura chirimwa (semuenzaniso, musiyano weEVI pakati pemazuva ano neapfuura, diffEVI). Kuvandudza mamepu akakodzera nzvimbo dzemafuro eshiri dzemumvura, tinopa zano nyowani-yakavakirwa chirimwa chekukura chiratidzo chekukura kwechirimwa (ESPG). Isu tinofungidzira kuti shiri dzemumvura dzinofarira zvirimwa padanho rekukura munguva yekukura uye dzinosarudza zvirimwa zvine magumo eESPG mumwaka usingakure. Isu tinoshandisa satellite yekutevera data yemakumi maviri makuru ewhite-fronted geese (Anser albifrons) munguva yechando muYangtze River floodplain kuti fungidziro dzedu dzisimbiswe. Isu tinovaka akajairwa mutsara modhi yekugovera goose panguva yekukura uye isiri-kukura mwaka uye tinoenzanisa mashandiro eESPG kune anowanzo shandiswa kukura kwechirimwa indictors (EVI uye diffEVI). Munguva yekukura, ESPG inogona kutsanangura 53% yekusiyana mukugovera goose, kupfuura EVI (27%) uye diffEVI (34%). Munguva isiri-kukura mwaka, chete kuguma kweESPG kunobatsira zvakanyanya kugovera goose, kutsanangura 25% yemusiyano (ESPG: AUC = 0.78; EVI: AUC = 0.58; diffEVI: AUC = 0.58). Chiratidzo chekukura kwechirimwa chichangobva kugadzirwa ESPG chinogona kushandiswa kuvandudza mhando dzekugoverwa kweshiri dzemvura uye nekudaro kutsigira kuedza kuchengetedza shiri dzemumvura uye kutonga kwevhu.