00483naa#a2200169#i#450# EN\\bibl\4072 20241130031808.6 2073-0462 20141214b2014####ek#y0engy0150####ca RUS RU Ways to improve the soil protective efficiency of forest stands Journal article Kazan Kazan state agrarian University 2014 2 с. Journal article local Pukhacheva Lyudmila naukaru.ru