00523naa#a2200169#i#450# EN\\bibl\114662 20260213114504.5 2587-6740 20260215b2026####ek#y0engy0150####ca RU Digital method for continuous express survey of unused agricultural lands Journal article Moscow Electronic science 2026 4 с. Journal article local Землепользование. 332.3 Soloviev Vladimir Igorevich mshj.ru