Засоляване на почвите [Nature Category:
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“Засоляването на почвите е една от причините за намаляване на почвеното плодородие. Когато съдържанието на разтворими във вода соли надхвърля 2,5 %, почвите се считат за засолени. Нерядко обаче почви с 1-3 % съдържание на соли също се считат за засолени. Най-често почвите се засоляват от хлоридите и сулфатите на натрия, калция и магнезия, по-рядко - от нитратите на натрия и калция. Границата на содовото засоляване е най-ниска – само 0,1 %. …” (Wikipedia) (Wikipedia translated)
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