Chapter IV. Concepts of the biosphere and biocenosis 84
The biosphere and metabolism in it
84-96
The concept of biocenosis
97-100
Chapter V. Main water resources of the Republic of Uzbekistan 101-107
The state of the ecosystem in the zone of the flow of large transit rivers
107-110
State of the ecosystem of artificial lakes, formed from collector and
irrigation irrigation water
110-114
Ecological and hygienic conditions of water sources
114-124
Quality indicators of drinking water
124-128
Ecological problems of Aral and Aral regions and their causes
128-141