Kalit soʻzlar:
- ug‘oriladigan bo‘z
- bo‘z-o‘tloqi
- o‘tloqi-bo‘z
- o‘tloqi va botqoq tuproqlar
- unumdorlik
- CO2
- atmosfera
- terassa
- oqim
- namlik
- harorat
Abstrak
Ushbu maqolada Toshkent viloyati Yangiyo‘l tumani Chirchiq daryosining I-V terrasalaridagi sug‘oriladigan bo‘z, bo‘z-o‘tloqi, o‘tloqi-bo‘z, o‘tloqi va botqoq tuproqlaridan atmosferaga ajraladigan CO2 konsentratsiyasining o‘zgarishi o‘rganilgan bo‘lib, bunda har bir terrasada tuproq tiplaridan 5 ta nuqtadan o‘lchovlar olinib, havo va tuproq harorati, CO2 intervali, zichlik (press 3 daqiqa) o‘rganildi. Natijalar namlikka boy botqoq, o‘tloqi va o‘tloqi bo‘z tuproqlarda CO2 ajralishi yuqori ekanini (775-1114 ppm/μmol mol-¹), bo‘z tuproqlarda esa pastroq yoki o‘rtacha (550-766 ppm/μmol mol-¹) darajani ko‘rsatdi. Tatqiqot natijalariga ko‘ra, hudud tuproqlaridan chiqadigan CO2 oqimlarini (tuproqdan atmosferaga chiqadigan CO2 oqimining tezligi) baholash va uglerod aylanishini mahalliy sharoitda o‘rganish uchun muhim amaliy va ilmiy ma’lumot hisoblanadi.
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