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Subjective causesDue to human causes:Indiscriminate deforestation-loss of groundwater leads to exhaustion of water resources;-The planting of inappropriate, the less water is also growing plants need lots of water (such as rice) makes the use of too much water, leading to the exhaustion of water resources;-Water use planning, layout works do not fit, make many works do not uphold the effect ... The region needs more water back layout of small works, while the lack of water (natural water sources) back to the construction layout works great ...
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