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== General System description == System name: Hylobius Management Support System Acronym: HMSS === Brief overview === The aim of HMSS is to integrate knowledge related to the management of ''Hylobius abietis'' (Pine Weevil) on conifer restock sites. [[Category:Decision support system|Decision support system]] [[Category:GB Forestry DSS]] __TOC__ === Scope of the system === This tool allows the user to evaluate the risk of ''Hylobius abietis'' attack, helping to schedule the operations of conifer restocking in order to predict and reduce transplant damage, insecticide use and costs of establishment. === System origin === * Developed by Roger Moore, Andrew Peace and Stephen Bathgate. * Used in public and private sector. Usage encouraged by FSC constraints on insecticide usage. === Support for specific issues === Guidance upon effectiveness of site operations and plant specifications in the context of reducing tree losses to Hylobius. === Support for specific thematic areas of a problem type === * Silvicultural * Certification * Development choices / land use zoning * Policy/intervention alternatives * Sustainability impact assessment (SIA) === Capability to support decision making phases === * Intelligence :gives user optimal planting date. * Design :user can define alternate management regimes, e.g. increased insecticide. * Choice :allows user to vary species choice and management options. * Monitor :users must carry out system specific site based monitoring of insect populations. === Related systems === * [[ESC]] * [[EMIS]] == Data and data models == === Typical spatial extent of application === Restock clearfell. === Forest data input === Location via OS GB six figure grid reference, e.g. NT090950. Time of felling and area felled also required. === Type of information input from user (via GUI) === Billet count (insect population) data. == Models == === Forest models === Hylobius population dynamics model == Decision Support == === Definition of management interventions === Timing of planting, insecticide spraying, nematode treatment, species choice. Prescription enumerating selected possibilities at stand level. Point based GIS/Spreadsheet population projection for the 5 year attack period. === Typical temporal scale of application === Upto 5 years of population data if sites are monitored immediately after felling. === Types of decisions supported === *Management level **strategic decisions **administrative decisions **operating control decisions * Management function * planning decisions **organizing decisions **command decisions **control decisions ** coordination decisions *decision making situation **unilateral ** collegial **Bargaining / participative decision making === Decision-making processes and models === *Operations research modeling **Direct approaches **Heuristic manipulation of simulation models *Multiple criteria/ranking *Other == Output == === Types of outputs === Stand version generates tables in HTML or spreadsheet/GIS compatible population projections with insect migration ranges. === Spatial analysis capabilities === * GIS links via data export. * provides standard data import/export formats * allows spatial analysis === Abilities to address interdisciplinary, multi-scaled, and political issues === Evaluate interactions between different basic information types (biophysical, economic, social). Produce coordinated results for decision makers operating at different spatial scales facilitate social negotiation and learning == System == === System requirements === * Java library deployed on Linux and Windows. UI available at stand level via web, or batch system via command line. * Utilises many open source Java libraries, GIS required for spatial visualisation. Data currently managed in Oracle database. === Architecture and major DSS components === 3 tier architecture ( UI, Models, Data) Web based UI using JSP, HTML, CSS Models are implemented in java and could be integrated with other DSS libraries. Modular. === Usage === Used in public and private sector forestry in upland conditions in GB and Ireland. === Computational limitations === Fairly light computationally. === User interface === Web UI requires designed in linear style to guide user through system. === Documentation and support === Training course covering software and field based monitoring. Support available via email. === Installation === * Prerequisite knowledge: Requires web browser. Server installation requires specialised skills and tools. Batch mode requires some configuration on host machine. * Subscription based service ==References== ===External resources=== [http://www.eforestry.gov.uk/forestdss Forest Research Decision Support Portal]
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