NDVI imayimira Normalized Difference Vegetation Index. Ndilolozera lomwe limagwiritsidwa ntchito pozindikira zakutali ndi ulimi powunika ndikuwunika thanzi ndi mphamvu za zomera.NDVIamayesa kusiyana pakati pa magulu ofiira ndi pafupi ndi infrared (NIR) a ma electromagnetic spectrum, omwe amatengedwa ndi zida zowonera patali monga ma satellite kapena ma drones.

Njira yowerengera NDVI ndi:

NDVI = (NIR – Red) / (NIR + Red)

Munjira iyi, gulu la NIR limayimira chiwonetsero chapafupi ndi infrared, ndipo Red band imayimira chonyezimira chofiira. Miyezo imachokera ku -1 kufika ku 1, ndi mitengo yapamwamba yomwe imasonyeza zomera zathanzi komanso zowundana, pamene zotsika zimayimira zomera zochepa kapena nthaka yopanda kanthu.

Nthano ya NDVI

NDVI imachokera pa mfundo yakuti zomera zathanzi zimawonetsera kuwala kwapafupi ndi infrared ndipo zimatengera kuwala kofiira kwambiri. Poyerekeza magulu awiri a spectral,NDVIamatha kusiyanitsa bwino pakati pa mitundu yosiyanasiyana ya nthaka ndikupereka chidziwitso chofunikira chokhudza kuchuluka kwa zomera, kakulidwe kake, ndi thanzi labwino.

Amagwiritsidwa ntchito kwambiri paulimi, nkhalango, kuyang'anira zachilengedwe, ndi madera ena kuyang'anira kusintha kwa zomera pakapita nthawi, kuwunika thanzi la mbewu, kuzindikira madera omwe akukhudzidwa ndi chilala kapena matenda, ndikuthandizira zisankho zoyendetsera nthaka.

Momwe mungagwiritsire ntchito NDVI paulimi?

NDVI ndi chida chofunikira paulimi chowunikira thanzi la mbewu, kuwongolera kasamalidwe kazinthu, ndikupanga zisankho mwanzeru. Nazi njira zina zomwe NDVI ingagwiritsire ntchito paulimi:

Kuwunika Zaumoyo wa Zokolola:

NDVI ikhoza kupereka zidziwitso za thanzi komanso mphamvu za mbewu. Pogwira pafupipafupi deta ya NDVI panyengo yakukula, alimi amatha kuzindikira madera omwe ali ndi nkhawa kapena kusakula bwino kwa mmera. Ma NDVI otsika amatha kuwonetsa kuchepa kwa michere, matenda, kupsinjika kwa madzi, kapena kuwonongeka kwa tizilombo. Kuzindikira msanga za nkhaniyi kumathandiza alimi kuchitapo kanthu zowongolera, monga kuthirira, kuthirira, kapena kuteteza tizilombo.

Kugwiritsa ntchito NDVI muulimi

Kuneneratu kwa Zokolola:

Zambiri za NDVI zomwe zasonkhanitsidwa nthawi yonse yakukula zitha kuthandizira kuneneratu zokolola. PoyerekezaNDVIAlimi amatha kuzindikira madera omwe ali ndi zokolola zambiri kapena zochepa. Izi zitha kuthandiza kukhathamiritsa kagawidwe kazinthu, kusintha kachulukidwe kabzala, kapena kugwiritsa ntchito njira zaulimi zolondola kuti muwonjezere zokolola.

Kusamalira ulimi wothirira:

NDVI imatha kuthandiza kukhathamiritsa njira zothirira. Poyang'anira mayendedwe a NDVI, alimi amatha kudziwa zosowa za madzi a mbewu ndikuzindikira malo omwe amathirira kwambiri kapena osathirira. Kusunga chinyezi chokwanira m'nthaka potengera deta ya NDVI kungathandize kusunga madzi, kuchepetsa mtengo wothirira, komanso kupewa kupsinjika kwa madzi kapena kuthirira kwamadzi muzomera.

Kusamalira Feteleza:

NDVI ikhoza kutsogolera ntchito ya feteleza. Popanga mapu a NDVI m'munda wonse, alimi amatha kuzindikira madera omwe ali ndi zofunikira zosiyanasiyana zazakudya. Makhalidwe apamwamba a NDVI amasonyeza zomera zathanzi komanso zomwe zimakula mwamphamvu, pamene zotsika zingasonyeze kuperewera kwa zakudya. Pothira feteleza motsatana ndi kagwiritsidwe ntchito ka NDVI motsogozedwa ndi NDVI, alimi amatha kugwiritsa ntchito bwino michere, kuchepetsa kuwononga feteleza, ndikulimbikitsa kukula kwa mbewu moyenera.

Kuyang'anira Matenda ndi Tizirombo:NDVI ikhoza kuthandizira kuzindikira matenda kapena tizilombo toyambitsa matenda. Zomera zopanda thanzi nthawi zambiri zimawonetsa zotsika za NDVI poyerekeza ndi zomera zathanzi. Kuwunika kwanthawi zonse kwa NDVI kungathandize kuzindikira madera omwe angakhale ovuta, kuthandizira kulowererapo panthawi yake ndi njira zoyenera zoyendetsera matenda kapena njira zopewera tizilombo.

Kupanga Mapu ndi Magawo:Zambiri za NDVI zitha kugwiritsidwa ntchito kupanga mamapu atsatanetsatane amasamba am'minda, kulola alimi kuzindikira kusiyana kwa thanzi la mbewu ndi mphamvu. Mapuwa atha kugwiritsidwa ntchito popanga madera oyang'anira, pomwe zochita zenizeni, monga kugwiritsa ntchito kuchuluka kwa zolowa, zitha kukhazikitsidwa potengera zosowa za madera osiyanasiyana.

Kuti agwiritse ntchito bwino NDVI paulimi, alimi nthawi zambiri amadalira matekinoloje akutali, monga zithunzi za satellite kapena ma drones, okhala ndi masensa ambiri omwe amatha kugwira magulu ofunikira. Zida zapadera zamapulogalamu zimagwiritsidwa ntchito pokonza ndi kusanthula deta ya NDVI, kulola alimi kupanga zisankho zomveka bwino za kasamalidwe ka mbewu.

ndi magalasi a kamera otani omwe ali oyenera NDVI?

Mukajambula zithunzi za kusanthula kwa NDVI, ndikofunikira kugwiritsa ntchito magalasi apadera a kamera omwe ali oyenera kujambula magulu owonera. Nayi mitundu iwiri ya magalasi omwe amagwiritsidwa ntchitoNDVImapulogalamu:

Magalasi Owoneka Mwachizolowezi:

Lens yamtunduwu imagwira mawonekedwe owoneka (nthawi zambiri kuyambira 400 mpaka 700 nanometers) ndipo imagwiritsidwa ntchito kujambula bandi yofiyira yofunikira pakuwerengera kwa NDVI. Lens yowoneka bwino yowoneka bwino ndiyoyenera kuchita izi chifukwa imalola kujambula kuwala kofiira komwe zomera zimawonetsa.

Magalasi a Near-Infrared (NIR):

Kuti mujambule bandi yapafupi ndi infrared (NIR), yomwe ndiyofunikira pakuwerengera kwa NDVI, lens yapadera ya NIR imafunika. Lens iyi imalola kuwala kozungulira pafupi ndi infrared (nthawi zambiri kuyambira 700 mpaka 1100 nanometers). Ndikofunika kuwonetsetsa kuti mandala amatha kujambula bwino kuwala kwa NIR popanda kusefa kapena kusokoneza.

Magalasi omwe amagwiritsidwa ntchito pazinthu za NDVI

Nthawi zina, makamaka kwa akatswiri odziwa zakutali, makamera amitundu yosiyanasiyana amagwiritsidwa ntchito. Makamerawa ali ndi masensa angapo kapena zosefera zomwe zimajambula magulu owoneka bwino, kuphatikiza magulu ofiira ndi a NIR omwe amafunikira NDVI. Makamera ambiri amapereka deta yolondola komanso yolondola kwambiri yowerengera NDVI poyerekeza ndi kugwiritsa ntchito magalasi osiyana pa kamera yowunikira yowoneka bwino.

Ndizofunikira kudziwa kuti mukamagwiritsa ntchito kamera yosinthidwa pakuwunika kwa NDVI, pomwe fyuluta yamkati ya kamera yasinthidwa kuti ilole kujambulidwa kwa NIR, magalasi apadera okometsedwa kuti agwire kuwala kwa NIR sangakhale kofunikira.

Pomaliza, NDVI yatsimikizira kukhala chida chamtengo wapatali pazaulimi, chothandizira alimi kudziwa bwino za thanzi la mbewu, kuwongolera bwino kasamalidwe kazinthu, ndikupanga zisankho motengera deta. Ndi kuchuluka komwe kukuchulukirachulukira kwa kusanthula kolondola komanso koyenera kwa NDVI, ndikofunikira kukhala ndi zida zodalirika zomwe zimajambula ma spectral ofunikira mwatsatanetsatane.

Ku ChuangAn, timamvetsetsa kufunikira kwaukadaulo wapamwamba kwambiri wazojambula pamapulogalamu a NDVI. Ichi ndichifukwa chake timanyadira kuyambitsa athuNDVI lenses. Wopangidwa makamaka kuti azigwiritsidwa ntchito paulimi, mandala athu adapangidwa kuti azijambula zofiira ndi zozungulira pafupi ndi infrared molondola komanso momveka bwino.

Kusintha kwa kamera ya NDVI

Pokhala ndi ma optics otsogola komanso zokutira zamagalasi apamwamba, mandala athu a NDVI amatsimikizira kupotoza kocheperako, kumapereka zotsatira zodalirika komanso zofananira pakuwerengera kwa NDVI. Kugwirizana kwake ndi makamera angapo komanso kuphatikiza kwake kosavuta kumapangitsa kukhala chisankho choyenera kwa ofufuza zaulimi, akatswiri azamalimi, ndi alimi omwe akufuna kukweza kuwunika kwawo kwa NDVI.

Ndi mandala a NDVI a ChuangAn, mutha kutsegula kuthekera konse kwaukadaulo wa NDVI, kukupatsani mphamvu kuti mupange zisankho zodziwika bwino za kasamalidwe ka ulimi wothirira, kugwiritsa ntchito feteleza, kuzindikira matenda, komanso kukhathamiritsa kwa zokolola. Dziwani kusiyana kolondola komanso magwiridwe antchito ndi ma lens athu apamwamba kwambiri a NDVI.

Kuti mudziwe zambiri zamagalasi athu a NDVI a ChuangAn ndikuwunika momwe angathandizire kusanthula kwa NDVI, pitani patsamba lathu.https://www.opticslens.com/ndvi-lenses-product/.

Sankhani ChuangAn'sNDVI lensndikutenga kalondolondo wanu waulimi ndi kuwunika kwatsopano. Dziwani zambiri zapadziko lonse lapansi ndi ukadaulo wathu wapamwamba wojambula.