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← HistoryFor chinampa agriculture, a consequence of prolonged hydraulic loading exceeding soil consolidation thresholds will be what outcome?
A)Increased soil subsidence and land loss✓
B)Enhanced nitrogen fixation in soils
C)Decreased risk of crop flooding
D)Improved water infiltration parameters
💡 Explanation
Exceeding consolidation thresholds in waterlogged conditions induces soil particle rearrangement via effective stress reduction, leading to increased subsidence and subsequent land loss because pore water pressure rises. Therefore, land submerges, rather than enhancing nitrogen levels or drainage, because it weakens the soil.
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