Lake Restoration Handbook: A New Zealand Perspective Editors David Hamilton Kevin Collier Clive Howard-Williams John Quinn Preface Bill Vant - changes since the Lake Manager''s Handbook A. INTRODUCTION Chapter 1: Context for restoration - David Hamilton, John Quinn, Clive Howard-Williams, Kevin Collier Handling editor: Kevin Collier Abstract (<200 words and be followed by at least 5 keywords) Introductory comments · Defining what we mean by restoration, values · Managing for multiple uses (and lakes vs reservoirs) · Context: 1987 LMH and what has changed since? Need for restoration. · Who carries out restoration? Who funds restoration? · What is the enabling environment? Include models of governance (e.g. co-governance) · Brief introduction to the policy and regulatory environment (and end with something specific to NZ - MfE, RCs, DCs, NGOs) International perspectives · Major issues globally (blooms, weeds, hydrology/storage and climate change, invasives, legacy nutrients) · Examples of international policies, e.g. WFD, TMDL · Approaches taken (align with issues), include catchment vs in-lake · Monitoring approaches to measure success · Involving citizens Introduction to chapters · Issues (eutrophication, invasives, multiple uses and objectives, policy and regulatory environment); use of models as decision support tools; dealing with the catchment (long-term essential approach); specific in-lake approaches. Sum up · Set the scene for the concluding chapter of the book.
Proposed international feature box contributors: · 1.1 Brian Moss - The philosophy of restoration · Justin Brooks - An Australian perspective: policies and practices enabling lake restoration B.< MANAGEMENT AND MODELLING Chapter 2: Modelling for catchment management - Aroon Parshotam & Dale Robertson Handling editor: David Hamilton Abstract (<200 words and be followed by at least 5 keywords) Introduction Review of catchment modelling in NZ · e.g. BNZ, CREAMS, GLEAMS · Recent big catchment modelling projects (e.g. Tauranga Harbour, South-Eastern Manukau Harbour) Assumptions · Broad assumptions of all catchment models (eg. Semi-distributed, etc.
) · GIS layers that are generally used (soils, landuse, slopes, climate) What models can be used for · Identify hotspots, climate change, soil erodibility.) · Types of landuses and what we expect from the various landuses · Review of Tools (eg. CLUES and OVERSEER) Stakeholder organisations and role Modelling for management purposes Limitation of models · groundwater, spatial variability, assumptions Future Prospects Proposed international feature box contributors: · Richard Alexander (TBC) · Other (TBC) Chapter 3: In-lake modelling for restoration - David Hamilton, John Quinn, Chris McBride Handling editor: Clive Howard-Williams Abstract (<200 words and be followed by at least 5 keywords) Introduction · What do we mean by modelling? · Brief introduction to types of models available (deterministic, Bayesian, neural networks) · How do we use models for management purposes? · Focus mostly on deterministic models in this chapter Types of models · Deterministic · Bayesian · Neural networks Data requirements (primarily oriented to deterministic models) · Climate data · Hydrological data · In-lake data (inc. satellite data) · Opportunities enabled by high-frequency sensors · Techniques to generate missing data (models, interpolation etc.) Case studies · Lake Benmore · Lake Rotorua (1-D long-term) · Lake Okaro (limiting nutrients) · Bayesian models for Waikato floodplain lakes Future Prospects · Real-time simulation · National-scale modelling of lakes · Automated data inputs and validation (e.g. with satellite) · Global communities and open source tools (GLEON) Proposed international feature box contributors: · Dennis Trolle - Mechanistic lake modelling approaches in Europe · Barbara Robson - Use of models as decision support tools for lake management C. WATER QUALITY RESTORATION Chapter 4: Catchment restoration - Richard McDowall, Murray Close, Chris Tanner - Handling editor: David Hamilton Abstract (<200 words and be followed by at least 5 keywords) Land management (inputs) and outputs at the land-water interface Overland and sub-surface flow losses In-stream and wetland processes Groundwater flow paths and attenuation Future Prospects (including some words around cost and optimisation: e.
g. CSAs) Proposed international feature box contributors: · 4.1 Jason Julian & deBruers - Assessing land cover changes with high spatio-temporal resolution to assist with catchment restoration · Mark Tomer - Reducing agricultural inputs of nutrients and sediments to freshwater systems Chapter 5: Destratification and mixing - Max Gibbs Handling editor: Clive Howard-Williams Abstract (<200 words and be followed by at least 5 keywords) Introduction - Stratification, Thermal Density Destratification · Mixing Concepts- lake size and shape matters · Mechanisms - mechanical, aeration, selective draw, flushing proactive, multiple mixing engines · Timing - Monitoring for start of mixing, consequences of getting it wrong Case studies · Upper Huia dam (Selective draw) · Auckland water supply reservoirs (aeration timing) · Opua Reservo.