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Soil Intactness Monitoring for the Waikato Region

TR 2001/13

Report: TR 2001/13

Author: Reece Hill

About this report

Waikato Regional Council has a statutory responsibility to collect information about state of the region’s environment (Section 35, Resource Management Act). The council’s strategy for environmental monitoring is given in its draft strategic plan “The Way Forward”. In future, the council foresees a need to collect more information about soil. Waikato Regional Council's participation in the 500 Soils Programme is already supplying useful base-line information about soil quality i.e. changes in soil fertility, structure and biology under different land uses. However, the 500 Soils Programme does not measure soil intactness i.e. how well the region’s soil is being kept in place as a resource for farming, forestry and conservation; and how much is being lost through erosion.

Soil Intactness Monitoring For The Waikato Region [PDF, 232 KB] 

Contents
Executive Summary -Review Of Options 1
1 Review Of Options 1
  1.1 Background 1
  1.2 Brief 1
  1.3 Concepts 2
1.3.1 Soil Intactness 2
1.3.2 Soil Erosion 2
1.3.3 Soil Accumulation 2
  1.4 Measurements And Techniques 3
  1.5 Measurement Strategies 14
    1.5.1 Mapping Whole Catchments 14
    1.5.2 Mapping Representative Windows 14
    1.5.3 Area Samples (quadrats) 15
    1.5.4 Line Samples (transects) 15
    1.5.5 Point Samples 16
    1.5.6 Prioritisation Of Sampling 16
2 Advice On Options For SER Of Soil Intactness In The Waikato Region 17
  2.1 Can The Method Measure Change In Soil? 18
  2.2 Accurately Enough? 18
  2.3 Over An Interval Of Time That’s Realistic? 19
  2.4 Is Data Collection Easy? 19
  2.5 Is Data Collection Quick? 19
  2.6 Is Data Analysis Manageable? 20
  2.7 Does Data Format Enable Statistical Testing? 20
  2.8 Within Acceptable Confidence Limits? 20
  2.9 Are Results Easily Explicable? 21
  2.10 Are Costs Reasonable, Relative To Usefulness Of Results? 21
3 PROGRAMME DESIGN 21
  3.1 Select A Measurement And A Measuring Technique 21
  3.2 Design A Measurement Strategy 23
  3.3 Recommend An Analysis Procedure 25
  3.4 Estimate Times And Costs Of Implementation 26
4 Concluding Remarks 27
5 References 29