CHAPTER X.
DESERT ZONE SOILS.
X.1.Soil cover and climate………………………………………………………124
X.2.Mechanical and mineralogical composition……………………………….125
X.3.Agricultural use of brown soils……………………………………………126
X.4.Bald, barren and sandy soils……………………………………………….127
X.5.Classification of bald spots…………………………………………………128
X.6.Agricultural use of barren and barren soils…………………………………130
X.7.Hydromorphic soils of the desert region…………………………………..131
CHAPTER XI.
ORIGIN, COMPOSITION, PROPERTIES AND SIGNIFICANCE OF GRAY SOILS.
XI.1. General description of gray soils…………………………………………137
XI.2.General characteristics of gray soils………………………………………138
XI.3.Gray soil classification. Properties and characteristics of gray soils………………………………………………………………………………139
XI.4.Irrigated grasslands………………………………………………………...143
XI.5.Alluvial marshy soils………………………………………………………145
XI.6.Hydromorphic soils of gray soils…………………………………………146
XI.7.Protected and irrigated alluvial meadow soils…………………………….147
XI.8.Alluvial marshy soils………………………………………………………150
XI.9.Meadow loam soils…………………………………………………………150
XI.10.Wetlands and wetlands……………………………………………………152
CHAPTER XII.
SOIL EROSION AND MEASURES AGAINST IT.
SOIL PROTECTION.
XII.1.General concept of soil erosion and its types……………………………154
XII.2.Water erosion……………………………………………………………..154
XII.3.Irrigation erosion………………………………………………………….155
XII.4.Erosion affects soil properties and crop yields……………………………156
XII.5.Factors causing soil erosion and against themcontrol measures………….159
XII.6.Earth's surface structure…………………………………………………..162
XII.7.Geological-geomorphological conditions…………………………………163
XII.8.The role of vegetation in the development of erosion…………………….164
XII.9.The condition of the soil cover……………………………………………166
XII.10.Soil protection……………………………………………………………167
CHAPTER XIII.
SOIL EVALUATION.
XIII.1.Land fertility assessment…………………………………………………171
XIII.2.The concept of economic evaluation of soils……………………………172
XIII.3.Digital card……………………………………………………………….176
XIII.4.Electronic card metadata………………………………………………….177
XIII.5.Stages of mapping and technological processes………………………….178
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