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Areas of High Erosion Risk (AHER) Greater Kaipara Harbour Catchment is an NRC created shapefile that combines attributes supplied in the <\/SPAN><\/SPAN>New Zealand Land Resource Inventory<\/SPAN><\/SPAN>(NZLRI),<\/SPAN><\/SPAN>namely the <\/SPAN>land use Capability<\/SPAN><\/SPAN>(LUC)<\/SPAN>component, which is a rating of the ability of each polygon to sustain agricultural production, based on an assessment of the inventory factors above, climate, the effects of past land use, and the potential for erosion. <\/SPAN><\/P>

  • LUC values selected range from \u201c6 e1\u201d \u2013 \u201c7 e9\u201d.<\/SPAN><\/SPAN><\/P><\/LI>

  • Also, slope attributes were targeted which are identified in the NZLRI <\/SPAN><\/SPAN>(\u2018D slopes - \u2018G\u2019 Slopes<\/SPAN>)<\/SPAN>.<\/SPAN><\/P><\/LI><\/UL>

    The second component to this data is The New Zealand <\/SPAN><\/SPAN>Land cover data base (LCDB3/4)<\/SPAN>The Land Cover Database (LCDB3/4) is a multi-temporal digital thematic map of land cover and land use. Land cover information contains snapshots at each of four periods; summer 1996/97, summer 2001/02, summer 2008/09, and summer 20012/13<\/SPAN><\/P>

    • LCDB3/4 was used to select areas of <\/SPAN><\/SPAN>non-forest<\/SPAN><\/SPAN>(I.e. \u201cHigh, Low Producing Exotic Grassland\u201d, \u201cGorse and Broom\u201d, \u201cShort rotation Cropland\u201d) analysis.<\/SPAN><\/P><\/LI><\/UL>

      • Created to identify areas to be targeted as a part of MPI funded Greater Kaipara Harbour Catchment Hill Country Erosion project<\/SPAN><\/SPAN><\/P><\/LI><\/UL>

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