- humus content of topsoils
- содержание гумуса в верхнем слое почвы
Англо-русский словарь по экологии. 2011.
Англо-русский словарь по экологии. 2011.
Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… … Wikipedia