Sun'iy yo'ldosh indekslari va yerdagi elektr o’tkazuvchanlik o'lchovlari o'rtasidagi bog'liqlik: Sirdaryo va Alakol misolida
Kalit so'zlar:
tuproq sho'rlanishi, NDVI, NDSI, EC, Landsat, Sentinel-2, masofadan zondlashAnnotatsiya
Tuproqda tuzlar miqdorining oshishi (sho'rlanish) sug'oriladigan yerlarda hosildorlikni kamaytiruvchi asosiy xavflardan biridir. Uni aniqlashning an'anaviy usuli — dalada tuproq namunasi olib, laboratoriyada elektr o'tkazuvchanlikni (EC) o'lchash — aniq, lekin sekin va qimmat. Sun'iy yo'ldosh tasvirlaridan hisoblanadigan indekslar (NDVI, NDSI) esa katta maydonni tez ko'rsatadi. Tezisda Sirdaryo viloyati (O'zbekiston) va Alakol tumani (Qozog'iston) misolida bu indekslar sho'rlanishni qanchalik ishonchli ko'rsatishi nashr etilgan tadqiqotlar asosida tahlil qilinadi. Indekslar sho'rlanishning mavsumiy va hududiy tendensiyasini ko'rsatadi, biroq ularning yerdagi EC bilan bog'lanishi kuchsiz (eng yuqori r = 0,189) bo'lgan.
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