Portland State University PDXScholar Master of Environmental Management Project Reports Environmental Science and Management 7-2018 Nadaka 2023 Management Plan Andrea Hurzeler Portland State University Follow this and additional works at: https://pdxscholar.library.pdx.edu/mem_gradprojects Part of the Natural Resources Management and Policy Commons, and the Recreation, Parks and Tourism Administration Commons Let us know how access to this document benefits ou.y Recommended Citation Hurzeler, Andrea, "Nadaka 2023 Management Plan" (2018). Master of Environmental Management Project Reports. 40. https://pdxscholar.library.pdx.edu/mem_gradprojects/40 https://doi.org/10.15760/mem.43 This Project is brought to you for free and open access. It has been accepted for inclusion in Master of Environmental Management Project Reports by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. Nadaka 2023 Management Plan Submitted to: Friends of Nadaka Submit Date: July 2018 Submitted by: Andrea Hurzeler Table of Contents I. Introduction ...................................................................................................................................................... 1 Purpose. ................................................................................................................................................. 1 How to use this Document. ................................................................................................ 2 11. Background of Previous Management Plans .................................................................................... 3 Previous Management Plans .............................................................................................................. 3 Previous Surveys/Memorandum ....................................................................................................... 3 Overview ............................................................................................................................................... 3 111. Overview of Management Plan ............................................................................................................... 5 1V. Methods .............................................................................................................................................................. 6 Establishing Desired Conditions ....................................................................................................... 6 Assessing Current Conditions .......................................................................................................... 6 Laminated Root Rot Survey ............................................................................................... 7 Vegetation Survey ................................................................................................................. 7 Percent Coverage of Invasive and Noxious Species Survey ....................................... 7 References ............................................................................................................................................. 9 V. Management Goals, Practices, and Priorities of Nadaka ................................................................. 10 Goals and Practices .......................................................................................................................... 10 Priorities.............................................................................................................................................. 11 V1. Vegetation ............................................................................................................................................................. 12 Definitions .......................................................................................................................................... 12 Overview ............................................................................................................................................ 12 Nelson Property ............................................................................................................................... 13 Existing Conditions ............................................................................................................ 13 Desired Conditions ........................................................................................................... 13 Recommendations ............................................................................................................. 14 Poison-Hemlock ................................................................................................................. 14 Meadow ............................................................................................................................................... 15 Existing Conditions ............................................................................................................ 15 Desired Conditions ........................................................................................................... 16 Recommendations ............................................................................................................. 16 Mixed Conifer-Broadleaf Forest ................................................................................................... 17 Existing Conditions ............................................................................................................ 17 Desired Conditions ........................................................................................................... 18 Recommendations ............................................................................................... 18 Invasive and Noxious Species of Concern .................................................................................. 18 Established Invasive and Noxious Species of Concern ............................................. 18 Encroaching Invasive and Noxious Species of Concern ........................................... 19 Management Recommendations for Established Invasive and Noxious Species .............. 19 Clematis vitalba (Traveler’s Joy/Old Man’s Beard) ...................................................... 19 Geranium robertianum (Herb Robert) ............................................................................ 20 Hedera helix (English Ivy) .................................................................................................. 21 Ilex aquifolium (English Holly) .......................................................................................... 22 Prunus laurocerasus (English Laurel) ................................................................................ 23 Rubus armeniacus (Himalayan Blackberry) .................................................................... 25 Management Recommendations for Encroaching Invasive and Noxious Species ............. 26 Arum italicum (Italian Arum) ............................................................................................ 26 Conium maculatum (Poison-Hemlock) ........................................................................... 27 Ficaria verna (Lesser Celandine) ...................................................................................... 27 Unknown Plant Species ................................................................................................................... 28 Chemical Use ..................................................................................................................................... 29 Migratory Bird Treaty Act (MBTA) .............................................................................................. 29 References .......................................................................................................................................... 29 V11. Laminated Root Rot .................................................................................................................................. 32 Previous Laminated Root Rot Surveys at Nadaka .................................................................... 32 Nomenclature .................................................................................................................................... 32 Background and Spread ................................................................................................................... 33 Management Recommendations ................................................................................................... 34 Migratory Bird Treaty Act ............................................................................................... 35 Recommended Laminated Root Rot Resistant Species ........................................................... 35 Tree Removal and Replacement Requirements ....................................................................... 36 References .......................................................................................................................................... 36 V111. Trails ................................................................................................................................................................. 37 Overview ........................................................................................................................................... 37 Commissioning Trails .....................................................................................................................