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Water abstraction and agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/impacts/in-stream-barriers/causes-of-altered-water-flow/water-resources-and-agriculture
Sediment and agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/impacts/sediment/causes/sediment
Agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/land-use/agriculture
Chemical contamination and agriculture
https://niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/impacts/chemical-contaminates/causes-of-chemical-contamination/chemical-contamination-and-agriculture