I-NDVI imele i-Normalized Difference Vegetation Index. Sisalathiso esiqhele ukusetyenziswa kwizivamvo ezikude kunye nezolimo ukuvavanya nokubeka iliso kwimpilo namandla ohlaza.NDVIilinganisa umahluko phakathi kweebhanti ezibomvu kunye nekufutshane ne-infrared (NIR) zespectrum ye-electromagnetic, ezithinjwa zizixhobo zezivamvo ezikude ezifana neesathelayithi okanye iidrone.

Ifomula yokubala i-NDVI yile:

NDVI = (NIR – Bomvu) / (NIR + Bomvu)

Kule fomula, ibhendi ye-NIR imele imbonakalo ekufutshane ye-infrared, kwaye ibhendi eBomvu imele ukubonakaliswa okubomvu. Amaxabiso asusela ku -1 ukuya ku-1, amaxabiso aphezulu abonisa impilo kunye nezityalo ezixineneyo, ngelixa amaxabiso aphantsi amele uhlaza oluncinci okanye umhlaba ongenanto.

Ibali le-NDVI

I-NDVI isekwe kumgaqo wokuba uhlaza olusempilweni lubonakalisa ukukhanya okukufutshane kwe-infrared kwaye lufunxa ngakumbi ukukhanya okubomvu. Ngokuthelekisa amaqela amabini e-spectral,NDVIinokwahlula ngokufanelekileyo phakathi kweentlobo ezahlukeneyo zokhuselo lomhlaba kwaye ibonelele ngolwazi oluxabisekileyo malunga nokuxinana kwezityalo, iipatheni zokukhula, kunye nempilo iyonke.

Isetyenziswa kakhulu kwezolimo, emahlathini, esweni kokusingqongileyo, nakwamanye amasimi ukujonga utshintsho kwizityalo ngokuhamba kwexesha, ukuhlola impilo yezityalo, ukuchonga iindawo ezichatshazelwa yimbalela okanye izifo, nokuxhasa izigqibo zolawulo lomhlaba.

Isetyenziswa njani i-NDVI kwezolimo?

I-NDVI sisixhobo esixabisekileyo kwezolimo sokubeka iliso kwimpilo yezityalo, ukwandisa ulawulo lwezibonelelo, kunye nokwenza izigqibo ezizizo. Nazi ezinye iindlela enokusetyenziswa ngazo iNDVI kwezolimo:

Uvavanyo lweMpilo yeZityalo:

I-NDVI inokubonelela ngeembono kwimpilo iyonke kunye nokomelela kwezityalo. Ngokuthatha rhoqo idatha ye-NDVI ngexesha lokukhula, amafama anokuchonga iindawo zoxinzelelo okanye uphuhliso olubi lwezityalo. Amaxabiso e-NDVI aphantsi angabonisa ukunqongophala kwezondlo, izifo, uxinzelelo lwamanzi, okanye umonakalo wezinambuzane. Ukubhaqwa kwangethuba kwale miba kuvumela amafama ukuba athathe amanyathelo okulungisa, njengokunkcenkceshela okujoliswe kuko, ukuchumisa, okanye ukulawula izinambuzane.

Ukusetyenziswa kwe-NDVI kwezolimo

Zivuno Prediction:

Idatha ye-NDVI eqokelelwe kulo lonke ixesha lokukhula inokunceda ukuqikelela izivuno zezityalo. NgokuthelekisaNDVIAbalimi bayakwazi ukuchonga iindawo ezinezivuno eziphezulu okanye ezisezantsi. Olu lwazi lunokunceda ekwandiseni ulwabiwo lwezibonelelo, ukulungisa ukuxinana kokutyala, okanye ukusebenzisa iindlela ezichanekileyo zokulima ukwandisa imveliso ngokubanzi.

Ulawulo lokunkcenkceshela:

I-NDVI inganceda ekwandiseni iindlela zokunkcenkceshela. Ngokubeka iliso kumaxabiso e-NDVI, abalimi banokumisela iimfuno zamanzi zezityalo kwaye bachonge iindawo zokunkcenkceshela ngokugqithisileyo okanye ngaphantsi. Ukugcina awona manqanaba afanelekileyo okufuma komhlaba okusekelwe kwidatha ye-NDVI kunokunceda ukugcina imithombo yamanzi, ukunciphisa iindleko zokunkcenkceshela, kunye nokuthintela uxinzelelo lwamanzi okanye ukugcwala kwamanzi kwizityalo.

Ulawulo lwezichumisi:

I-NDVI inokukhokela ukufakwa kwesichumiso. Ngokwenza imephu yamaxabiso e-NDVI kuwo wonke umhlaba, amafama anokuchonga iindawo ezineemfuno zezondlo ezohlukeneyo. Amaxabiso aphezulu e-NDVI abonisa uhlaza olusempilweni nolukhula ngamandla, ngelixa amaxabiso aphantsi angacebisa ukunqongophala kwezondlo. Ngokufaka izichumisi ngokuchanekileyo ngokusekwe kusetyenziso lwezinga eliguquguqukayo elikhokelwa yi-NDVI, amafama anokuphucula ukusebenza kakuhle kwezondlo, anciphise inkcitho yesichumiso, kwaye akhuthaze ukukhula okulinganayo kwezityalo.

UkuJonga izifo kunye neZitshabalalisi:I-NDVI inokunceda ekubhaqweni kwangaphambili kwezifo okanye uhlaselo lwezinambuzane. Izityalo ezingekho mpilweni zihlala zibonisa amaxabiso asezantsi e-NDVI xa kuthelekiswa nezityalo ezisempilweni. Ukujongwa rhoqo kwe-NDVI kunokunceda ukuchonga iindawo ezinokuthi zibe yingxaki, kuvumele ungenelelo ngexesha elifanelekileyo kunye nezicwangciso ezifanelekileyo zokulawula izifo okanye iindlela ezijoliswe kuzo zokulawula izinambuzane.

Imephu yommandla kunye noCando loMhlaba:Idatha ye-NDVI ingasetyenziselwa ukwenza iimephu zezityalo ezineenkcukacha zamasimi, ukuvumela amafama ukuba achonge ukwahluka kwimpilo yezityalo kunye nokomelela. Ezi mephu zingasetyenziselwa ukudala imimandla yolawulo, apho izenzo ezithile, ezifana nosetyenziso lwezinga eliguquguqukayo lwegalelo, lunokuphunyezwa ngokusekelwe kwiimfuno ezithile zemimandla eyahlukeneyo ngaphakathi kwentsimi.

Ukusebenzisa ngokukuko i-NDVI kwezolimo, amafama akholisa ukuthembela kubuchwepheshe bokuva ukude, obufana nemifanekiso yesathelayithi okanye iidrones, ezixhotyiswe ngezinzwa ezininzi ezikwaziyo ukubamba iibhendi zokubonwayo ezifunekayo. Izixhobo zesoftware ezikhethekileyo zisetyenziselwa ukusetyenzwa nokuhlalutya idatha ye-NDVI, ivumela amafama ukuba enze izigqibo ezinolwazi malunga nezenzo zolawulo lwezityalo.

luhlobo luni lweelensi zekhamera ezifanelekileyo kwi-NDVI?

Xa uthatha umfanekiso wohlalutyo lwe-NDVI, kubalulekile ukusebenzisa iilensi ezithile zekhamera ezifanelekileyo ukubamba iibhendi ze-spectral ezifunekayo. Nazi iindidi ezimbini eziqhelekileyo zeelensi ezisetyenziselwaNDVIizicelo:

Ilensi yokukhanya eqhelekileyo:

Olu hlobo lwelensi lubamba i-spectrum ebonakalayo (ngokuqhelekileyo ukusuka kwi-400 ukuya kwi-nanometers ye-700) kwaye isetyenziselwa ukubamba ibhande elibomvu elifunekayo ukubala kwe-NDVI. I-lens yokukhanya ebonakalayo esemgangathweni ifanelekile le njongo njengoko ivumela ukubamba ukukhanya okubomvu okubonakalayo okuboniswa zizityalo.

ILens ekufutshane ne-Infrared (NIR):

Ukubamba ibhendi ekufutshane ne-infrared (NIR), eyimfuneko ekubaleni kwe-NDVI, ilensi ye-NIR ekhethekileyo iyafuneka. Le lens ivumela ukubamba ukukhanya kuluhlu olusondeleyo lwe-infrared (ngokuqhelekileyo ukusuka kwi-700 ukuya kwi-1100 nanometers). Kubalulekile ukuqinisekisa ukuba i-lens iyakwazi ukubamba ngokuchanekileyo ukukhanya kwe-NIR ngaphandle kokucoca okanye ukuyigqwetha.

Iilensi ezisetyenziselwa usetyenziso lwe-NDVI

Kwezinye iimeko, ngakumbi kwizicelo zobuchwephesha bezivamlo kude, kusetyenziswa iikhamera ezininzi. Ezi khamera zixhotyiswe ngeenzwa ezininzi okanye izihluzi ezithatha iibhendi ezithile ze-spectral, kubandakanywa iibhendi ezibomvu kunye ne-NIR ezifunekayo kwi-NDVI. Iikhamera ezininzi zibonelela ngedatha echanekileyo kunye nechanekileyo yezibalo ze-NDVI xa kuthelekiswa nokusebenzisa iilensi ezihlukeneyo kwikhamera yokukhanya ebonakalayo.

Kuyafaneleka ukuba uqaphele ukuba xa usebenzisa ikhamera elungisiweyo yohlalutyo lwe-NDVI, apho isihluzo sangaphakathi sekhamera sitshintshwe ukuze kuvumeleke ukubanjwa kwe-NIR, iilensi ezithile ezilungiselelwe ukubamba ukukhanya kwe-NIR kunokuba yimfuneko.

Ukuququmbela, I-NDVI ibonakalise ukuba sisixhobo esixabisekileyo kwezolimo, esenza amafama afumane ulwazi olubalulekileyo kwimpilo yezityalo, ukwandisa ulawulo lwezixhobo, kunye nokwenza izigqibo eziqhutywa yidatha. Ngemfuno ehlala isanda yohlalutyo oluchanekileyo nolusebenzayo lwe-NDVI, kubalulekile ukuba nezixhobo ezithembekileyo ezibamba iibhendi ze-spectral eziyimfuneko ngokuchanekileyo.

E-ChuangAn, siyakuqonda ukubaluleka kobugcisa bomfanekiso obuphezulu kwizicelo ze-NDVI. Yiyo loo nto sinebhongo ukwazisa yethuIlensi yeNDVIes. Idizayinelwe ngokukodwa ukusetyenziswa kwezolimo, ilensi yethu yenzelwe ukubamba iibhendi ezibomvu nezikufutshane ne-infrared ngokuchaneka okukhethekileyo kunye nokucaca.

Ukuguqulwa kwekhamera ye-NDVI

Ibandakanya i-cutting-edge optics kunye neengubo zelensi eziphambili, ilensi yethu ye-NDVI iqinisekisa ukugqwethwa kokukhanya okuncinci, inika iziphumo ezithembekileyo nezingaguqukiyo zokubala kwe-NDVI. Ukuhambelana kwayo noluhlu lweekhamera kunye nokudityaniswa kwayo ngokulula kuyenza ibe lolona khetho lufanelekileyo kubaphandi bezolimo, iingcali ngezolimo, kunye namafama afuna ukuphakamisa uhlalutyo lwe-NDVI.

Nge-lens ye-NDVI ye-ChuangAn, unokuvula amandla apheleleyo obuchwepheshe be-NDVI, ukuxhobisa ukuba wenze izigqibo ezinolwazi malunga nolawulo lokunkcenkceshela, ukufakwa kwesichumisi, ukufunyanwa kwezifo, kunye nokwandisa isivuno. Yiva umahluko wokuchaneka kunye nokusebenza kunye nelensi yethu ye-NDVI yangoku.

Ukufunda ngakumbi malunga nelensi ye-NDVI yeChuangAn kwaye ujonge ukuba ingaluphucula njani uhlalutyo lwe-NDVI yakho, ndwendwela iwebhusayithi yethu.https://www.opticslens.com/ndvi-lenses-product/.

Khetha uChuangAn'sIilensi zeNDVIkwaye uthathe uhlolo lwakho lwezolimo kunye nohlalutyo oluphezulu. Fumanisa ihlabathi lamathuba ngetekhnoloji yethu yokucinga ephucukileyo.