I-NDVI imele i-Normalized Difference Vegetation Index. Kuyinkomba evame ukusetshenziswa ezinzwa ezikude kanye nezolimo ukuze kuhlolwe futhi kuqashwe impilo namandla ezitshalo.I-NDVIikala umehluko phakathi kwamabhendi abomvu naseduze kwe-infrared (NIR) we-electromagnetic spectrum, athwetshulwa amadivaysi enzwa akude njengamasathelayithi noma ama-drones.

Ifomula yokubala i-NDVI ithi:

NDVI = (NIR – Red) / (NIR + Red)

Kule fomula, ibhendi ye-NIR imelela ukukhanya okuseduze kwe-infrared, futhi ibhendi Ebomvu imele ukubonakaliswa okubomvu. Amanani asukela kokuthi -1 kuye ku-1, amanani aphezulu abonisa izimila ezinempilo neziminyene, kuyilapho amanani aphansi emelela uhlaza oluncane noma umhlabathi ongenalutho.

Inganekwane ye-NDVI

I-NDVI isekelwe esimisweni sokuthi izimila ezinempilo zibonisa ukukhanya okuseduze kwe-infrared futhi zimunca ukukhanya okubomvu okwengeziwe. Ngokuqhathanisa amabhendi amabili e-spectral,I-NDVIingahlukanisa ngempumelelo phakathi kwezinhlobo ezahlukene zekhava yomhlaba futhi inikeze ulwazi olubalulekile mayelana nokuminyana kwezitshalo, amaphethini okukhula, kanye nempilo iyonke.

Isetshenziswa kakhulu kwezolimo, ezamahlathi, ukuqapha imvelo, nakweminye imikhakha ukuqapha izinguquko ezitshalweni ngokuhamba kwesikhathi, ukuhlola impilo yezitshalo, ukuhlonza izindawo ezikhahlamezwe isomiso noma izifo, kanye nokweseka izinqumo zokuphathwa komhlaba.

Ungayisebenzisa kanjani i-NDVI kwezolimo?

I-NDVI iyithuluzi elibalulekile kwezolimo lokuqapha impilo yezitshalo, ukuthuthukisa ukuphathwa kwezinsiza, nokwenza izinqumo ezinolwazi. Nazi ezinye izindlela i-NDVI engasetshenziswa ngazo kwezolimo:

Ukuhlolwa Kwempilo Yezitshalo:

I-NDVI inganikeza imininingwane ngempilo kanye namandla ezilimo. Ngokuthatha njalo idatha ye-NDVI ngesikhathi sokukhula, abalimi bangakwazi ukuhlonza izindawo zokucindezeleka noma ukuthuthukiswa okubi kwezitshalo. Amanani aphansi e-NDVI angase abonise ukuntula izakhi, izifo, ukucindezeleka kwamanzi, noma ukulimala kwezinambuzane. Ukutholwa kusenesikhathi kwalezi zinkinga kuvumela abalimi ukuthi bathathe izinyathelo zokulungisa, njengokunisela okuhlosiwe, ukuvundisa, noma ukulawula izinambuzane.

Ukusetshenziswa kwe-NDVI kwezolimo

Yield Prediction:

Idatha ye-NDVI eqoqwe phakathi nenkathi yokukhula ingasiza ukubikezela izivuno zezitshalo. NgokuqhathanisaI-NDVIamanani emikhakheni ehlukene noma ezifundeni ngaphakathi kwensimu, abalimi bangakwazi ukukhomba izindawo ezinesivuno esiphezulu noma esiphansi. Lolu lwazi lungasiza ekuthuthukiseni ukwabiwa kwezinsiza, ukulungisa ukuminyana kokutshala, noma ukusebenzisa amasu okulima anembayo ukuze kukhuliswe umkhiqizo wonke.

Ukuphathwa Kwenkasa:

I-NDVI ingasiza ekuthuthukiseni izindlela zokunisela. Ngokuqapha amanani e-NDVI, abalimi bangakwazi ukunquma izidingo zamanzi ezitshalweni futhi bahlonze izindawo zokunisela ngokweqile noma okungaphansi kokunisela. Ukugcina amazinga afanele womswakamo enhlabathini ngokusekelwe kudatha ye-NDVI kungasiza ukulondoloza imithombo yamanzi, ukunciphisa izindleko zokunisela, nokuvimbela ukucindezeleka kwamanzi noma ukugcwala kwamanzi ezitshalweni.

Ukuphatha Umanyolo:

I-NDVI ingaqondisa ukufakwa kukamanyolo. Ngokwenza imephu amanani e-NDVI kuyo yonke insimu, abalimi bangakwazi ukuhlonza izindawo ezinezidingo ezihlukahlukene zomsoco. Amanani aphezulu e-NDVI abonisa izimila ezinempilo nezikhula ngamandla, kuyilapho amanani aphansi angase asikisele ukuntula izakhi. Ngokusebenzisa umanyolo ngokunembe ngokususelwe ekusetshenzisweni kwesilinganiso esiguquguqukayo esiqondiswa yi-NDVI, abalimi bangathuthukisa ukusebenza kahle komsoco, banciphise ukumosheka kukamanyolo, futhi bakhuthaze ukukhula kwezitshalo okunokulinganisela.

Ukuqapha Izifo Nezinambuzane:I-NDVI ingasiza ekutholakaleni kusenesikhathi kwezifo noma ukuhlasela kwezinambuzane. Izitshalo ezingenampilo zivame ukubonisa amanani aphansi e-NDVI uma kuqhathaniswa nezitshalo ezinempilo. Ukuqapha njalo kwe-NDVI kungasiza ekuboneni izindawo ezingaba izinkinga, kunikeze amandla ukungenelela okufika ngesikhathi ngamasu okulawula izifo afanele noma izinyathelo ezihlosiwe zokulawula izinambuzane.

Ukudwetshwa Kwemephu Nezindawo:Idatha ye-NDVI ingasetshenziswa ukudala amamephu wezitshalo anemininingwane wamasimu, okuvumela abalimi ukuthi babone ukuhlukahluka empilweni yezitshalo namandla. Lawa mamephu angasetshenziswa ukudala izindawo zokuphatha, lapho izenzo ezithile, ezifana nesilinganiso esishintshayo sokusetshenziswa kokufakiwe, zingasetshenziswa ngokusekelwe ezidingweni ezithile zezindawo ezahlukene ngaphakathi kwenkambu.

Ukuze usebenzise ngempumelelo i-NDVI kwezolimo, abalimi ngokuvamile bathembela kubuchwepheshe benzwa bekude, obufana nesithombe sesathelayithi noma ama-drones, afakwe izinzwa eziningi ezikwazi ukuthwebula amabhendi e-spectral adingekayo. Amathuluzi esofthiwe akhethekile asetshenziselwa ukucubungula nokuhlaziya idatha ye-NDVI, okuvumela abalimi ukuthi benze izinqumo ezinolwazi mayelana nezinqubo zokuphatha izitshalo.

hlobo luni lwamalensi ekhamera afanele i-NDVI?

Uma uthwebula isithombe sokuhlaziya i-NDVI, kubalulekile ukusebenzisa amalensi ekhamera athile afanele ukuthwebula amabhendi e-spectral adingekayo. Nazi izinhlobo ezimbili ezivamile zamalensi asetshenziselwaI-NDVIizicelo:

Ilensi Evamile Ebonakalayo Yokukhanya:

Lolu hlobo lwamalensi luthwebula i-spectrum ebonakalayo (imvamisa esukela ku-400 kuya ku-700 nanometers) futhi isetshenziselwa ukuthwebula ibhande elibomvu elidingekayo ekubalweni kwe-NDVI. Ilensi yokukhanya ebonakalayo ejwayelekile ifanelekela le njongo njengoba ivumela ukuthwebula ukukhanya okubomvu okubonakalayo okubonisa izitshalo.

Ilensi ye-Near-Infrared (NIR):

Ukuze uthwebule ibhendi ye-infrared (NIR) eseduze, ebalulekile ekubalweni kwe-NDVI, kudingeka ilensi ekhethekile ye-NIR. Le lensi ivumela ukuthwebula ukukhanya ebangeni eliseduze le-infrared (imvamisa esukela ku-700 kuya ku-1100 nanometers). Kubalulekile ukuqinisekisa ukuthi ilensi iyakwazi ukuthwebula ngokunembile ukukhanya kwe-NIR ngaphandle kokukuhluza noma ukukuhlanekezela.

Amalensi asetshenziselwa izinhlelo zokusebenza ze-NDVI

Kwezinye izimo, ikakhulukazi ezinhlelweni zokusebenza zokuzwa okukude, kusetshenziswa amakhamera amaningi. Lawa makhamera afakwe izinzwa eziningi noma izihlungi ezithwebula amabhendi athile e-spectral, okuhlanganisa namabhendi abomvu nawe-NIR adingekayo ku-NDVI. Amakhamera anezici eziningi ahlinzeka ngedatha enembe kakhulu nenembayo yezibalo ze-NDVI uma kuqhathaniswa nokusebenzisa amalensi ahlukene kukhamera yokukhanya ebonakalayo evamile.

Kuhle ukuqaphela ukuthi uma usebenzisa ikhamera eguquliwe yokuhlaziya i-NDVI, lapho isihlungi sangaphakathi sekhamera sishintshiwe ukuze kuvunyelwe ukuthwebula kwe-NIR, amalensi athile alungiselelwe ukuthwebula ukukhanya kwe-NIR angase angadingeki.

Ekuphetheni, i-NDVI ibonakale iyithuluzi elibalulekile kwezolimo, elivumela abalimi ukuthi bathole imininingwane ebalulekile ngempilo yezitshalo, bathuthukise ukuphathwa kwezinsiza, futhi benze izinqumo eziqhutshwa idatha. Ngesidingo esihlala sikhula sokuhlaziywa kwe-NDVI okunembile nokusebenza kahle, kubalulekile ukuba nezinto ezithembekile ezithwebula amabhendi e-spectral adingekayo ngokunemba.

Kwa-ChuangAn, siyakuqonda ukubaluleka kobuchwepheshe bokuthwebula bekhwalithi ephezulu ezinhlelweni ze-NDVI. Kungakho siziqhenya ngokwethula eyethuIlensi ye-NDVIes. Idizayinelwe ngokukhethekile ukusetshenziswa kwezolimo, ilensi yethu yakhelwe ukuthwebula amabhendi abomvu naseduze kwe-infrared ngokunemba okukhethekile nokucaca.

Ukuguqulwa kwekhamera ye-NDVI

Ihambisana ne-Cutting-Edge Optics namalensi athuthukisiwe, ilensi yethu ye-NDVI iqinisekisa ukuhlanekezelwa kokukhanya okuncane, iletha imiphumela enokwethenjelwa nengaguquguquki yezibalo ze-NDVI. Ukuhambisana kwayo nohlu lwamakhamera nokuhlanganiswa kwayo kalula kuyenza ibe inketho ekahle kubacwaningi bezolimo, izazi zezolimo namahlathi, kanye nabalimi abafuna ukuphakamisa ukuhlaziya kwabo kwe-NDVI.

Ngelensi ye-NDVI kaChuangAn, ungavula amandla aphelele obuchwepheshe be-NDVI, ikunikeze amandla okwenza izinqumo ezinolwazi oluningi mayelana nokuphathwa kokunisela, ukufaka umanyolo, ukutholwa kwezifo, kanye nokwenza kahle isivuno. Izwa umehluko wokunemba nokusebenza ngelensi yethu yesimanje ye-NDVI.

Ukuze ufunde kabanzi mayelana nelensi yethu ye-NDVI kaChuangAn futhi uhlole ukuthi ingakuthuthukisa kanjani ukuhlaziywa kwe-NDVI yakho, vakashela iwebhusayithi yethu.https://www.opticslens.com/ndvi-lenses-product/.

Khetha uChuangAnAmalensi e-NDVIfuthi uthathe ukuqapha nokuhlaziya kwakho kwezolimo kufinyelele ezingeni eliphezulu. Zitholele umhlaba wamathuba ngobuchwepheshe bethu bezithombe obuthuthukisiwe.