D Soil and environment protection
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DIKES AND WODDEN OSTACLES
GARDEN THRESHING FLOORS
PLOUGHING AND WATER SPRINKLING
LAND FIXED BY FARMING
PLANT SPECIES TO COMBAT EROSION
MANURE SCATTERING FOR PROTECTION AND AGAINST EVAPORATION
OBSTACLES TO REDUCE THE WIND AND DEVIATE THE SAND
IMPROVEMENT OF THE COMPOSITION OF HEAVY SOIL
DECREASE OF STREAMS
SYSTEM OF SOIL PROTECTION, WATER HARVESTING AND PROTECTION AGAINST THE WIND
IMPROVEMENT OF ALKALIZED SALINIZED SOILS
D1
DIKES AND WODDEN OSTACLESD2
GARDEN THRESHING FLOORSD3
PLOUGHING AND WATER SPRINKLINGD4
LAND FIXED BY FARMINGD5
PLANT SPECIES TO COMBAT EROSIOND6
MANURE SCATTERING FOR PROTECTION AND AGAINST EVAPORATIOND7
OBSTACLES TO REDUCE THE WIND AND DEVIATE THE SANDD8
IMPROVEMENT OF THE COMPOSITION OF HEAVY SOILD9
DECREASE OF STREAMSD10
SYSTEM OF SOIL PROTECTION, WATER HARVESTING AND PROTECTION AGAINST THE WINDD11
IMPROVEMENT OF ALKALIZED SALINIZED SOILS