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Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/6231
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dc.contributor.authorKillgore, K. Jacken_US
dc.contributor.authorPayne, Barry S.en_US
dc.creatorAquatic Plant Control Research Program (U.S.)en_US
dc.creatorEnvironmental Laboratory (U.S.)en_US
dc.date.accessioned2016-03-23T19:47:26Zen_US
dc.date.available2016-03-23T19:47:26Zen_US
dc.date.issued1984-04en_US
dc.identifier.govdocMiscellaneous Paper A-84-3en_US
dc.identifier.urihttp://hdl.handle.net/11681/6231en_US
dc.descriptionMiscellaneous Paperen_US
dc.description.abstractThe Aquatic Plant Control Research Program (APCRP) of the U.S. Army Engineer Waterways Experiment Station (WES) is developing field techniques to measure treatment efficacy and to determine site characteristics that influence the treatment efficacy. Treatment efficacy is considered a quantitative determination of the extent and duration of changes in problem aquatic plant populations attributable to the use of a treatment method (i.e., chemical, mechanical, biological, environmental). Depending on the plant species, efficacy can be determined or indicated by changes in biomass, areal distribution, or height of an aquatic plant in response to treatment. Aquatic plant biomass is sampled with a WES aquatic biomass sampler; areal distribution of aquatic plants is determined by aerial photography or with an electronic positioning system; and submersed aquatic plant height is measured with a fathometer (depth recorder) used with an electronic positioning and repositioning system (AGNAV). The APCRP has also developed field techniques to determine site characteristics that influence efficacy using commercially available instrumentation. This instrumentation can be used to measure treatment efficacy and to determine site characteristics simultaneously. Ultimately, it is anticipated that this research will lead to more standardized methods for monitoring aquatic site characteristics and treatment method efficacy for use by those responsible for planning, applying, and measuring results of field aquatic plant control programs.en_US
dc.description.sponsorshipUnited States. Army. Corps of Engineers. Seattle Districten_US
dc.description.sponsorshipUnited States. Army. Office of the Chief of Engineersen_US
dc.description.sponsorshipAquatic Plant Control Research Program (U.S.)en_US
dc.description.tableofcontentsPreface...........................1 List of Figures...........................3 Conversion Factors, U. S. Customary to Metric (SI) Units of Measurement...........................4 Introduction...........................5 Background...........................5 Purpose and objectives...........................5 Scope...........................6 Measurement of Efficacy...........................6 Aerial photography...........................6 Electronic positioning system...........................9 Fathometer/electronic positioning system...........................12 Biomass sampler...........................16 Conclusions and Recommendations...........................20 References...........................22 Tables 1-2 Appendix A: A Review of Site Characteristics and Measurement Techniques that May Influence Treatment Method and Treatment Efficacy...........................A1en_US
dc.format.extent31 pages/4.26 MBen_US
dc.format.mediumPDFen_US
dc.language.isoen_USen_US
dc.publisherU.S. Army Engineer Waterways Experiment Stationen_US
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1044170en_US
dc.relation.ispartofseriesMiscellaneous Paper (Aquatic Plant Control Research Program (U.S.)) ; no.Miscellaneous Paper A-84-3en_US
dc.rightsApproved for public release; distribution is unlimiteden_US
dc.sourceThis Digital Resource was created from scans of the Print Resourceen_US
dc.subjectAquatic plant controlen_US
dc.subjectAquatic plantsen_US
dc.subjectBotanical researchen_US
dc.subjectResearch methodsen_US
dc.subjectField methodsen_US
dc.subjectPlant populationsen_US
dc.subjectMeasurementen_US
dc.subjectAquatic Plant Control Research Program (U.S.)en_US
dc.titleField methods to measure aquatic plant treatment method efficacyen_US
dc.typeReporten_US
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