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10. DESIGN OF IRRIGATION NETWORKS
10.1. Location in terms of conducting networks and their design …………….. 143
10.2. Water intake of drainage systems and their regulation.............................. 147
10.3. Definitions of estimated costs and hydraulic calculation of drains ……... 148
10.4. Structures on drainage systems ………………………………………….. 154
11. SOIL EROSION AND STRUGGLE AGAINST IT
11.1. The concept of erosion................................................................................ 157
11.2. Soil erosion and its varieties....................................................................... 159
11.3. Methods of combating soil erosion............................................................ 167
12. FOREST MELIORATIONS
12.1. The essence of forests, forest meliorations and the importance of forests
in human life ………………..…………………………………………..
174
12.2. Forest fund of Uzbekistan ……………………………………………….
177
12.3. Influence of forests on the microclimate and crop yields ……………….. 181
13. LAND RECULTIVATION
13.1. Essence of recultivation ............................................................................ 187
13.2. Land for recultivation................................................................................. 190
13.3. Stages of recultivation ............................................................................... 193
References..………………………………………............................................ 196
Glossary ….………………………………………............................................ 198
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