LiDAR don Harkokin Gandun Daji: Auna Yawan Itace da Katako Cikin Cikakken Daidaito
Kiyasta adadin katako da ke cikin wani yanki na gandun daji a al'adance ya kunshi tura ma'aikata don auna 'yan bishiyoyi kalilan a matsayin samfuri sannan a yi kiyasi a kai. Amfani da Drone LiDAR yana maye gurbin wannan aikin zato da cikakken tsarin taswirar tsawo na koli (Canopy Height Model) wanda ke rufe kowace bishiya a yankin da aka bincika.
Ta hanyar daukar duka tsayin kasa da saman koli na kowane maki, LiDAR na lissafa tsayin bishiya kai tsaye. Wannan tsayi idan aka hada shi da fadin koli yana ba masana gandun daji ingantaccen tushe na lissafa yawan katako da adadin halittu (biomass) a dukkan fadin dajin.
Kalli Yadda Ake Gina Tsarin Tsayin Koli
Tara Yawan Girman Koli Kai Tsaye
Daidaita Yawan Bishiyoyi (Density)
Na'urar Lissafa Yawan Katako Mai Aiki
Auna Bishiyoyi Daya Bayan Daya
Latsa Bishiya Don Aunawa
Yadda Lissafin Yawan Katako da LiDAR Ke Aiki
Samar da tsarin fasalin kasa (DTM)
Rarraba bayanan kasa yana samar da tsarin doron kasa zalla wanda ke karkashin bishiyoyi.
Samar da tsarin saman bishiyoyi (DSM)
Bayanai mafi daukaka na hasken leza a kowane yanki suna zama tsarin da ke wakiltar saman kolin daji.
Lissafin tsarin tsayin koli (CHM)
Cire tsayin kasa daga tsayin saman bishiyoyi yana ba da ainihin tsayin bishiya a kowane maki.
Bambance kowace bishiya (Segmentation)
Dabarun lissafi na gano kolin kowace bishiya daban a cikin tsarin CHM don zurfafa bincike.
Kiyasin yawan katako da biomass
Ana hada tsawo, fadin koli, da tsarin lissafin allometric don kiyasta yawan katakon daji.
Saboda LiDAR yana bincikar dukkan gandun dajin maimakon wani karamin yanki na samfuri, kiyasin yawan katako yana la'akari da sauye-sauyen yanayi na fili, ciki har da gibin da ke tsakanin bishiyoyi da yankunan da bishiyoyi suka cika sosai.
Samfurin fili yana ba da labarin 'yan bishiyoyi kalilan ne kawai. Amma LiDAR yana bayyana kowace bishiya da ke cikin dajin baki daya.
Yin Amfani da Wannan a Ayyukan Gandun Daji
Ko don kididdigar katako na kasuwanci, tantance adadin iskar carbon da ke ajiye, ko kula da shukokin bishiyoyi, cikakken binciken koli yana sauya hanyoyin binciken gandun daji. Tawagarmu ta binciken jirgi mara matuki (drone survey) tana isar da samfuran tsayin koli daga bayanan binciken LiDAR wanda aka kera musamman don masu gandun daji da shuke-shuken itatuwa.
Kuna bukatar tantance yawan katako ko biomass na daji?
Ku fada mana girman yankinku da nau'in bishiyoyinku, kuma za mu yi muku bayanin yadda muke amfani da fasahar LiDAR.
Tambayoyin da Aka Fi Yi
LiDAR yana lissafa tsayin bishiya ta hanyar cire tsayin kasa daga tsayin saman koli a kowane maki, yana ba da ingantaccen tsawo a duk dajin.
Tsari ne na bayanai da ke nuna tsayin bishiya a kowane wuri a cikin gandun daji, wanda aka lissafa daga fasalin kasar LiDAR da saman bishiyoyi.
LiDAR yana duba dukkan gandun dajin maimakon karamin samfuri, yana ba da ingantattun kiyasi da suka shafi kowane sashe na filin.
Kwarai kuwa, dabarun segmentation na iya gano kowace bishiya a cikin tsarin CHM, yana ba da damar auna tsawo da yawan kowace bishiya.
Hulda ce ta lissafi tsakanin tsayin bishiya, fadin koli, da girman katako wadda ake amfani da ita wajen canza bayanan LiDAR zuwa kiyasin katako.
Haka ne, kiyasin biomass daga bayanan koli na LiDAR ana amfani da shi sosai wajen bincike da sanya ido kan ajiyar carbon a gandun daji.
Yana aiki a duka biyun, kodayake shukokin bishiyoyi da aka tsara galibi sun fi saukin bincike saboda jeri da suke da shi.
Yawan yankin ya dogara da karfin batirin drone da tsarin tashi, amma zai iya taswirar kananan filaye har zuwa manyan gonakin itatuwa.
Ana bukatar auna 'yan bishiyoyi kalilan a kasa don daidaitawa da tabbatar da lissafin allometric da ake amfani da shi.
Sauye-sauye a tsarin koli da ke bayyana a bayanan LiDAR na iya nuna damuwa ko cututtuka, wanda na'urorin multispectral ke taimakawa wajen tabbatarwa.
Wannan layin an kebe shi ne kawai don neman aikin bincike. Da fatan kada a tuntube mu don neman horo ko aiki.