DOCSLIB.ORG

Markleeville Creek Floodplain Restoration Project Alpine County, California Initial Study/Mitigated Negative Declaration - Volume I

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Markleeville Creek Floodplain Restoration Project Alpine County, California Initial Study/Mitigated Negative Declaration - Volume I Markleeville Creek Floodplain Restoration Project Alpine County, California Initial Study/Mitigated Negative Declaration - Volume I February 2014 Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project Document Information Prepared for Alpine County, CA Project Name Markleeville Creek Floodplain Restoration Project Project Number 3343000100 Project Manager Virginia Mahacek Date February 2014 Lead Agency: Alpine County 50 Diamond Valley Road, Markleeville, CA 96120 530.694.2140 www.alpinecountyca.gov Sponsor: Alpine Watershed Group 270 Laramie St. Markleeville, CA 96120 530.694.2327 www.alpinecountyca.gov Prepared by: Cardno ENTRIX 295 Highway 50, Suite 1 / PO Box 1533, Zephyr Cove, NV 89448 775.588.9069 www.cardno.com February 2014 Cardno ENTRIX Document Information i Markleeville IS-MND_Volume I_Feb2014_final.docx Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project This Page Intentionally Left Blank ii Document Information Cardno ENTRIX February 2014 Markleeville IS-MND_Volume I_Feb2014_final.docx Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project Table of Contents 1 Overview ........................................................................................................................1-1 1.1 Introduction ....................................................................................................................... 1-1 1.2 CEQA Review ................................................................................................................... 1-1 1.3 Location ............................................................................................................................ 1-1 2 Project Description .......................................................................................................2-1 2.1 Background....................................................................................................................... 2-1 2.1.1 Site History and Flooding .................................................................................. 2-1 2.1.2 Project History ................................................................................................... 2-1 2.1.3 Purpose ............................................................................................................. 2-2 2.2 Project Goals and Objectives ........................................................................................... 2-2 2.3 Project Components ......................................................................................................... 2-3 2.3.1 Major Elements ................................................................................................. 2-3 2.3.2 Design Features ................................................................................................ 2-4 2.4 Project Phasing .............................................................................................................. 2-15 2.4.1 Sewer System Phasing Options ..................................................................... 2-15 2.5 Construction Activities .................................................................................................... 2-16 2.5.1 Personnel and Equipment ............................................................................... 2-17 2.5.2 Construction Personnel and Employee Vehicles ............................................ 2-17 2.5.3 Heavy Equipment ............................................................................................ 2-17 2.5.4 Duration ........................................................................................................... 2-18 2.5.5 Schedule ......................................................................................................... 2-18 2.5.6 Access, Traffic, Staging, Storage .................................................................... 2-18 2.5.7 Utilities and Services ....................................................................................... 2-18 2.5.8 Vegetation Handling ........................................................................................ 2-19 2.5.9 Vegetation Protection/Avoidance .................................................................... 2-19 2.5.10 Vegetation Salvage for Reuse ........................................................................ 2-19 2.5.11 Vegetation Removal ........................................................................................ 2-19 2.5.12 Noxious Weed Measures ................................................................................ 2-19 2.5.13 Rock and Soil Handling ................................................................................... 2-19 2.5.14 Abandonment-in-Place of Selected Infrastructure .......................................... 2-20 2.5.15 Existing Infrastructure and Materials ............................................................... 2-20 2.5.16 Water Quality Protection ................................................................................. 2-20 2.5.17 Air Quality Protection ...................................................................................... 2-21 2.5.18 Noise Restrictions ........................................................................................... 2-21 2.5.19 Aquatic Resources Protection ......................................................................... 2-22 2.5.20 Cultural Resource and Archaeological Protection .......................................... 2-22 2.6 Post-Construction Activities ............................................................................................ 2-22 2.6.1 Contractor Obligations .................................................................................... 2-22 2.6.2 Permit and CEQA Compliance ....................................................................... 2-22 2.6.3 Sewer System Monitoring and Maintenance .................................................. 2-22 2.6.4 Long-Term Operations & Maintenance/Adaptive Management ..................... 2-22 February 2014 Cardno ENTRIX Table of Contents iii Markleeville IS-MND_Volume I_Feb2014_final.docx Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project 2.7 Environmental Review and Potential Permits and Approvals ........................................ 2-22 3 Environmental Checklist .............................................................................................3 -24 3.1 Aesthetics ....................................................................................................................... 3-24 3.1.1 Impact Analysis ............................................................................................... 3-24 3.2 Agriculture ....................................................................................................................... 3-25 3.2.1 Regulatory Setting........................................................................................... 3-25 3.2.2 Impact Analysis ............................................................................................... 3-26 3.3 Air Quality ....................................................................................................................... 3-27 3.3.1 Environmental Setting ..................................................................................... 3-27 3.3.2 Regulatory Setting........................................................................................... 3-28 3.3.3 Impact Analysis ............................................................................................... 3-29 3.4 Biological Resources ...................................................................................................... 3-31 3.4.1 Environmental Setting ..................................................................................... 3-31 3.4.2 Regulatory Setting........................................................................................... 3-35 3.4.3 Impact Analysis ............................................................................................... 3-38 3.5 Cultural Resources ......................................................................................................... 3-51 3.5.1 Environmental Setting ..................................................................................... 3-51 3.5.2 Regulatory Setting........................................................................................... 3-53 3.5.3 Impact Analysis ............................................................................................... 3-56 3.6 Geology and Soils .......................................................................................................... 3-61 3.6.1 Environmental Setting ..................................................................................... 3-61 3.6.2 Regulatory Setting........................................................................................... 3-62 3.6.3 Impact Analysis ............................................................................................... 3-62 3.7 Greenhouse Gas Emissions ........................................................................................... 3-64 3.7.1 Environmental Setting ..................................................................................... 3-64 3.7.2 Regulatory Setting........................................................................................... 3-65 3.7.3
Load more

Recommended publications
  • Pdf Clickbook Booklet
    2. phyllaries strongly graded; basal lvs 0, cauline gen evenly sized and spaced; infls arising near st tips; per Plant Guide to Aspen Grove / Fish Creek Trail, San Bernardino Mountains 3. phyllaries glandular .... var. breweri 3'. phyllaries non-glandular ... var. covillei Mile S # id? Common Name Latin Name #here #all Trailhead at parking lot in front of kiosk / display board, elevation 7410 feet 2'. phyllaries roughly equal; cauline lvs reduced upwards; infls arising (2260 m). Trail is in sun for first 1/4 mile, then mostly in shade. (Coville's 0.00 near mid-stem; ann to biennial E. divergens fleabane, Erigeron breweri var. covillei, is found in the parking area, but not so far on the trail). threadleaf common Chrysothamnus nauseosus ssp. 1'. phyllary tips spreading to reflexed; lvs gen reduced upwards; per to subshrub 0.00 b 1 20 / 5 14 rabbitbrush consimilis 2. lvs green, linear, often toothed; resembling those of a penstemon in Machaeranthera canescens var. being rigidly spreading; gen per ..... Machaeranthera canescens 0.00 r 2 hoary-aster 50 / 9 3 canescens+ 2'. lvs gray, "half-tomentose", usually ascending; subshrub ...... Lessingia filaginifolia var. filaginifolia Eriogonum wrightii var. 0.00 b 3 Wright's buckwheat 40 / 6 11 subscaposum http://tchester.org/sb/plants/guides/fish_creek.html Elymus elymoides ssp. Updated 14 October 2013. 0.00 l 4 California squirreltail 50 / 9 8 californicus 0.00 r 5 Nevin's bird's beak Cordylanthus nevinii 30 / 5 5 0.00 l 6 yarrow Achillea millefolium 20 / 4 11 Castilleja applegatei ssp. 0.00 b 7 Martin's paintbrush 30 / 4 14 martinii+ 0.00 r Information board 0.00 r 8 Davidson's lotus Lotus nevadensis var.
    [Show full text]
  • References and Appendices
    References Ainley, D.G., S.G. Allen, and L.B. Spear. 1995. Off- Arnold, R.A. 1983. Ecological studies on six endan- shore occurrence patterns of marbled murrelets gered butterflies (Lepidoptera: Lycaenidae): in central California. In: C.J. Ralph, G.L. Hunt island biogeography, patch dynamics, and the Jr., M.G. Raphael, and J.F. Piatt, technical edi- design of habitat preserves. University of Cali- tors. Ecology and Conservation of the Marbled fornia Publications in Entomology 99: 1–161. Murrelet. USDA Forest Service, General Techni- Atwood, J.L. 1993. California gnatcatchers and coastal cal Report PSW-152; 361–369. sage scrub: the biological basis for endangered Allen, C.R., R.S. Lutz, S. Demairais. 1995. Red im- species listing. In: J.E. Keeley, editor. Interface ported fire ant impacts on Northern Bobwhite between ecology and land development in Cali- populations. Ecological Applications 5: 632-638. fornia. Southern California Academy of Sciences, Allen, E.B., P.E. Padgett, A. Bytnerowicz, and R.A. Los Angeles; 149–169. Minnich. 1999. Nitrogen deposition effects on Atwood, J.L., P. Bloom, D. Murphy, R. Fisher, T. Scott, coastal sage vegetation of southern California. In T. Smith, R. Wills, P. Zedler. 1996. Principles of A. Bytnerowicz, M.J. Arbaugh, and S. Schilling, reserve design and species conservation for the tech. coords. Proceedings of the international sym- southern Orange County NCCP (Draft of Oc- posium on air pollution and climate change effects tober 21, 1996). Unpublished manuscript. on forest ecosystems, February 5–9, 1996, River- Austin, M. 1903. The Land of Little Rain. University side, CA.
    [Show full text]
  • Terr–3 Special-Status Plant Populations
    TERR–3 SPECIAL-STATUS PLANT POPULATIONS 1.0 EXECUTIVE SUMMARY During 2001 and 2002, the review of existing information, agency consultation, vegetation community mapping, and focused special-status plant surveys were completed. Based on California Native Plant Society’s (CNPS) Electronic Inventory of Rare and Endangered Vascular Plants of California (CNPS 2001a), CDFG’s Natural Diversity Database (CNDDB; CDFG 2003), USDA-FS Regional Forester’s List of Sensitive Plant and Animal Species for Region 5 (USDA-FS 1998), U.S. Fish and Wildlife Service Species List (USFWS 2003), and Sierra National Forest (SNF) Sensitive Plant List (Clines 2002), there were 100 special-status plant species initially identified as potentially occurring within the Study Area. Known occurrences of these species were mapped. Vegetation communities were evaluated to locate areas that could potentially support special-status plant species. Each community was determined to have the potential to support at least one special-status plant species. During the spring and summer of 2002, special-status plant surveys were conducted. For each special-status plant species or population identified, a CNDDB form was completed, and photographs were taken. The locations were mapped and incorporated into a confidential GIS database. Vascular plant species observed during surveys were recorded. No state or federally listed special-status plant species were identified during special- status plant surveys. Seven special-status plant species, totaling 60 populations, were identified during surveys. There were 22 populations of Mono Hot Springs evening-primrose (Camissonia sierrae ssp. alticola) identified. Two populations are located near Mammoth Pool, one at Bear Forebay, and the rest are in the Florence Lake area.
    [Show full text]
  • Cardno ENTRIX Report Template
    Markleeville Creek Floodplain Restoration Project Alpine County, California Initial Study/Mitigated Negative Declaration Volume II – Appendices A-G February 2014 Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project Document Information Prepared for Alpine County, CA Project Name Markleeville Creek Floodplain Restoration Project Project Number 3343000100 Project Manager Virginia Mahacek Date February 2014 Lead Agency: Alpine County 50 Diamond Valley Road, Markleeville, CA 96120 530.694.2140 www.alpinecountyca.gov Sponsor: Alpine Watershed Group 270 Laramie St. Markleeville, CA 96120 530.694.2327 www.alpinecountyca.gov Prepared by: Cardno ENTRIX 295 Highway 50, Suite 1 / PO Box 1533, Zephyr Cove, NV 89448 775.588.9069 www.cardno.com February 2014 Cardno ENTRIX Document Information i Markleeville IS-MND_Volume II_Appendices A-G_Feb2014.docx Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project This Page Intentionally Left Blank ii Document Information Cardno ENTRIX February 2014 Markleeville IS-MND_Volume II_Appendices A-G_Feb2014.docx Initial Study/Mitigated Negative Declaration Markleeville Creek Floodplain Restoration Project Appendices Appendix A Site Flood History Appendix B MPUD Sewer Diagrams Appendix C Restoration Plans and Details Appendix D Hydraulic Modelling Memo Appendix E Wetland Delineation Report Appendix F Noxious Weeds/Invasive Plants Memo Appendix G Cultural Resources Inventory and Recommendations Letter Report February 2014 Cardno ENTRIX
    [Show full text]
  • Plants of Chuchupate Valley, Ventura County, California by David L
    Plants of Chuchupate Valley, Ventura County, California By David L. Magney Scientific Name Common Name Habit Family Achnatherum hymenoides Indian Rice Grass PG Poaceae Achnatherum speciosum Desert Needlegrass PG Poaceae Agoseris retrorsa Retrorse Mountain Dandelion PH Asteraceae Allium howellii var. clokeyi Mt. Pinos Onion PH Alliaceae Ambrosia acanthicarpa Annual Bursage AH Asteraceae Amsinckia menziesii var. intermedia Ranchers Fire AH Boraginaceae Arabis pulchra var. gracilis Beautiful Rock-cress PH Brassicaceae Arabis pulchra var. pulchra Beautiful Rock-cress PH Brassicaceae Arctostaphylos parryana Parry Manzanita S Ericaceae Argemone munita Prickly Poppy BH Papaveraceae Artemisia dracunculus Taragon PH Asteraceae Artemisia tridentata ssp. tridentata Great Basin Sagebrush S Asteraceae Asclepias californica California Milkweed PH Asclepiadaceae Asclepias eriocarpa Chaparral Milkweed PH Asclepiadaceae Astragalus lentiginosus var. idriensis Freckled Milkvetch PH Fabaceae Astragalus pachypus var. pachypus Cream-flowered Milkvetch PH Fabaceae Astragalus purshii var. tinctus Pursh Woolly Pod PH Fabaceae Astragalus trichopodus var. phoxus Ocean Milkvetch PH Fabaceae Bromus carinatus var. carinatus California Brome PG Poaceae Bromus madritensis ssp. rubens* Red Brome AG Poaceae Bromus tectorum* Cheat Grass AG Poaceae Calochortus kennedyi Desert Mariposa Lily PH Liliaceae Calyptridium monandrum Calyptridium AH Portulacaceae Calyptridium parryi var. parryi Parry Pussypaws AH Portulacaceae Calystegia malacophylla var. ? Woolly Morning-glory
    [Show full text]
  • Vascular Plant Species with Documented Or Recorded Occurrence in Placer County
    A PPENDIX II Vascular Plant Species with Documented or Reported Occurrence in Placer County APPENDIX II. Vascular Plant Species with Documented or Reported Occurrence in Placer County Family Scientific Name Common Name FERN AND FERN ALLIES Azollaceae Mosquito fern family Azolla filiculoides Pacific mosquito fern Dennstaedtiaceae Bracken family Pteridium aquilinum var.pubescens Bracken fern Dryopteridaceae Wood fern family Athyrium alpestre var. americanum Alpine lady fern Athyrium filix-femina var. cyclosorum Lady fern Cystopteris fragilis Fragile fern Polystichum imbricans ssp. curtum Cliff sword fern Polystichum imbricans ssp. imbricans Imbricate sword fern Polystichum kruckebergii Kruckeberg’s hollyfern Polystichum lonchitis Northern hollyfern Polystichum munitum Sword fern Equisetaceae Horsetail family Equisetum arvense Common horsetail Equisetum hyemale ssp. affine Scouring rush Equisetum laevigatum Smooth horsetail Isoetaceae Quillwort family Isoetes bolanderi Bolander’s quillwort Isoetes howellii Howell’s quillwort Isoetes orcuttii Orcutt’s quillwort Lycopodiaceae Club-moss family Lycopodiella inundata Bog club-moss Marsileaceae Marsilea family Marsilea vestita ssp. vestita Water clover Pilularia americana American pillwort Ophioglossaceae Adder’s-tongue family Botrychium multifidum Leathery grapefern Polypodiaceae Polypody family Polypodium hesperium Western polypody Pteridaceae Brake family Adiantum aleuticum Five-finger maidenhair Adiantum jordanii Common maidenhair fern Aspidotis densa Indian’s dream Cheilanthes cooperae Cooper’s
    [Show full text]
  • To Volume 36
    Aliso: A Journal of Systematic and Evolutionary Botany Volume 36 | Issue 2 Article 4 2019 Index to Volume 36 Follow this and additional works at: https://scholarship.claremont.edu/aliso Part of the Botany Commons Recommended Citation (2019) "Index to Volume 36," Aliso: A Journal of Systematic and Evolutionary Botany: Vol. 36: Iss. 2, Article 4. Available at: https://scholarship.claremont.edu/aliso/vol36/iss2/4 Aliso, 36(2), pp. 85–88 ISSN: 0065-6275 (print), 2327-2929 (online) INDEX TO VOLUME 36, ALISO Includes authors, titles, taxa, and salient concepts appearing in the scientific papers, as well as additional terms of use in infor- mation retrieval. New taxa and combinations appear in boldface. Page numbers reflect the location where an indexing term appears or—if it occurs repeatedly—receives special mention. Abies concolor 63 Athyrium distentifolium var. americanum Carter, B. E., W. F. Hoyer III, J. Dunn, S. Abies magnifica var. magnifica 63 61, 66 Junak, C. M. Guilliams.—New Abronia turbinata 53, 73 Autapomorphy (in Paracryphiaceae) additions to the flora of San Acacia 3 12–13 Nicolas Island, Ventura County, Acanthaceae 27–45 Axial parenchyma 1–2, 4, 6–7, 11–17 California 21–26 Acer 3 Belliolum 12 Caryophyllaceae 23, 70–71 Achillea millefolium 54, 67 Betula occidentalis 54, 69 Cassiope mertensiana 55–56, 71 Acmispon 24 Betulaceae 17, 69 Castilleja 47, 54–56, 58, 61, 73 Acorus 13 Boechera 56, 58–62, 69–70 Castilleja linariifolia 54, 73 Adenostoma 17 Boechera tularensis 61–62, 70 Castilleja nana 55–56, 61, 73 Adoxaceae 12, 67 Boraginaceae 32, 69 Castilleja peirsonii 47, 54–55, 58, 73 Aextoxicaceae 15 Bordered pits 1–2, 4, 6, 10–12, 15–16 Cephalacanthus 32 Agrostis humilis 61, 79 Botrychium crenulatum 61–62, 67 Cerastium arvense subsp.
    [Show full text]
  • J:\Projects\Monrovia Nursery EIR 2002-43\DRAFT EIR\4.9 Biological
    Monrovia Nursery Specific Plan and Project 4.9 Biological and Agricultural Resources Draft EIR 4.9 BIOLOGICAL AND AGRICULTURAL RESOURCES SCOPE AND METHODOLOGY This section examines the potential for the proposed project to result in significant adverse impacts to agricultural and biological resources. The existence (or lack) of such resources in the project area and immediate surroundings were identified through consultation with appropriate local, state, and federal agencies, including the United States Army Corps of Engineers (Corps), United States. Fish and Wildlife Service (USFWS), California Department of Fish and Game (CDFG), the California Department of Conservation, and the City of Azusa. Biological surveys of the site were conducted by Glenn Lukos Associates, Inc. (GLA) from April to July 2002 to ascertain the nature of biological resources on the site and the potential for impacts (See Appendix G).1 Previous biological surveys were conducted by Michael Brandman Associates (MBA) in 1992 and 1996. MBA reports provided detailed descriptions of the site, including the nursery areas occupied by native habitats.2 3 4 The focus of the 2002 GLA surveys was determined through a review of the MBA reports, which can be viewed in the Rosedale Specific Plan EIR, also used to prepare this Section. Field studies were conducted and focused on a number of primary objectives: (1) confirmation of previous vegetation mapping; (2) focused plant surveys; (3) general wildlife surveys (including considerations of wildlife movement corridors); (4) focused surveys for the coastal California gnatcatcher (Polioptila californica californica); (5); focused surveys for Bell’s sage sparrow (Amphisipiza belli belli) and rufus crowned sparrow (Aimiophila ruficeps) and (6) raptor surveys, and an oak tree survey conducted in accordance with the Los Angeles County Oak Tree Permit requirements set forth in Title 22, Part 16 of the Los Angeles County Code (see Appendix G).
    [Show full text]
  • A Checklist of Vascular Plants Endemic to California
    Humboldt State University Digital Commons @ Humboldt State University Botanical Studies Open Educational Resources and Data 3-2020 A Checklist of Vascular Plants Endemic to California James P. Smith Jr Humboldt State University, [email protected] Follow this and additional works at: https://digitalcommons.humboldt.edu/botany_jps Part of the Botany Commons Recommended Citation Smith, James P. Jr, "A Checklist of Vascular Plants Endemic to California" (2020). Botanical Studies. 42. https://digitalcommons.humboldt.edu/botany_jps/42 This Flora of California is brought to you for free and open access by the Open Educational Resources and Data at Digital Commons @ Humboldt State University. It has been accepted for inclusion in Botanical Studies by an authorized administrator of Digital Commons @ Humboldt State University. For more information, please contact [email protected]. A LIST OF THE VASCULAR PLANTS ENDEMIC TO CALIFORNIA Compiled By James P. Smith, Jr. Professor Emeritus of Botany Department of Biological Sciences Humboldt State University Arcata, California 13 February 2020 CONTENTS Willis Jepson (1923-1925) recognized that the assemblage of plants that characterized our flora excludes the desert province of southwest California Introduction. 1 and extends beyond its political boundaries to include An Overview. 2 southwestern Oregon, a small portion of western Endemic Genera . 2 Nevada, and the northern portion of Baja California, Almost Endemic Genera . 3 Mexico. This expanded region became known as the California Floristic Province (CFP). Keep in mind that List of Endemic Plants . 4 not all plants endemic to California lie within the CFP Plants Endemic to a Single County or Island 24 and others that are endemic to the CFP are not County and Channel Island Abbreviations .
    [Show full text]
  • Plants of Hot Springs Valley and Grover Hot Springs State Park Alpine County, California
    Plants of Hot Springs Valley and Grover Hot Springs State Park Alpine County, California Compiled by Tim Messick and Ellen Dean This is a checklist of vascular plants that occur in Hot Springs Valley, including most of Grover Hot Springs State Park, in Alpine County, California. Approximately 310 taxa (distinct species, subspecies, and varieties) have been found in this area. How to Use this List Plants are listed alphabetically, by family, within major groups, according to their scientific names. This is standard practice for plant lists, but isn’t the most user-friendly for people who haven’t made a study of plant taxonomy. Identifying species in some of the larger families (e.g. the Sunflowers, Grasses, and Sedges) can become very technical, requiring examination of many plant characteristics under high magnification. But not to despair—many genera and even species of plants in this list become easy to recognize in the field with only a modest level of study or help from knowledgeable friends. Persistence will be rewarded with wonder at the diversity of plant life around us. Those wishing to pursue plant identification a bit further are encouraged to explore books on plants of the Sierra Nevada, and visit CalPhotos (calphotos.berkeley.edu), the Jepson eFlora (ucjeps.berkeley.edu/eflora), and CalFlora (www.calflora.org). The California Native Plant Society (www.cnps.org) promotes conservation of plants and their habitats throughout California and is a great resource for learning and for connecting with other native plant enthusiasts. The Nevada Native Plant Society nvnps.org( ) provides a similar focus on native plants of Nevada.
    [Show full text]
  • Forest Service Research Natural Areas
    28. Fern Canyon 28. Fern Canyon (Meier 1979) Location This established RNA is on the San Dimas Experimental Forest, within the Angeles National Forest. It is approximately 6 miles (10 km) N. of the city of Claremont. It occupies portions of seven sects. in T1N, R8W SBBM (34°12'N., 117°43'W.), USGS Mt. Baldy quad (fig. 58). Ecological subsection – San Gabriel Mountains (M261Bd). Target Elements Chamise Chaparral (Adenostoma fasciculatum) and Canyon Live Oak (Quercus chrysolepis) Distinctive Features Well-Monitored Site: The RNA is located within an experimental forest. There is a good record of the impact and extent of fires in the area dating back to 1914 (six major fires have occurred). This record extends to the relative Figure 58—Fern Canyon RNA volume of pre- and post-fire stream flow in the three subdrainages within the RNA. Stream flow has changed appreciably among the three drainages since a major fire in 1938. Low-Elevation Ponderosa Pine: Brown’s Flat, a shallow 80-acre (32-ha) bowl created by an ancient land slump, contains the lowest elevation stand of Pinus ponderosa in S. California (about 3900 ft, 1189 m). This relictual stand of 81 individuals is well-isolated from other ponderosa pine stands in the San Gabriel Mountains and strongly affected by air pollution. There is almost no recent reproduction. Chaparral: This extensive vegetation formation occurs as chamise (Adenostoma fasciculatum) and Ceanothus-dominated types. It was extensively burned in 1975 and, thus, is vigorous (fig. 59). Oak Woodlands: The area covered by this vegetation is extensive and varied.
    [Show full text]
  • Checklist of the Vascular Plants of San Diego County 5Th Edition
    cHeckliSt of tHe vaScUlaR PlaNtS of SaN DieGo coUNty 5th edition Pinus torreyana subsp. torreyana Downingia concolor var. brevior Thermopsis californica var. semota Pogogyne abramsii Hulsea californica Cylindropuntia fosbergii Dudleya brevifolia Chorizanthe orcuttiana Astragalus deanei by Jon P. Rebman and Michael G. Simpson San Diego Natural History Museum and San Diego State University examples of checklist taxa: SPecieS SPecieS iNfRaSPecieS iNfRaSPecieS NaMe aUtHoR RaNk & NaMe aUtHoR Eriodictyon trichocalyx A. Heller var. lanatum (Brand) Jepson {SD 135251} [E. t. subsp. l. (Brand) Munz] Hairy yerba Santa SyNoNyM SyMBol foR NoN-NATIVE, NATURaliZeD PlaNt *Erodium cicutarium (L.) Aiton {SD 122398} red-Stem Filaree/StorkSbill HeRBaRiUM SPeciMeN coMMoN DocUMeNTATION NaMe SyMBol foR PlaNt Not liSteD iN THE JEPSON MANUAL †Rhus aromatica Aiton var. simplicifolia (Greene) Conquist {SD 118139} Single-leaF SkunkbruSH SyMBol foR StRict eNDeMic TO SaN DieGo coUNty §§Dudleya brevifolia (Moran) Moran {SD 130030} SHort-leaF dudleya [D. blochmaniae (Eastw.) Moran subsp. brevifolia Moran] 1B.1 S1.1 G2t1 ce SyMBol foR NeaR eNDeMic TO SaN DieGo coUNty §Nolina interrata Gentry {SD 79876} deHeSa nolina 1B.1 S2 G2 ce eNviRoNMeNTAL liStiNG SyMBol foR MiSiDeNtifieD PlaNt, Not occURRiNG iN coUNty (Note: this symbol used in appendix 1 only.) ?Cirsium brevistylum Cronq. indian tHiStle i checklist of the vascular plants of san Diego county 5th edition by Jon p. rebman and Michael g. simpson san Diego natural history Museum and san Diego state university publication of: san Diego natural history Museum san Diego, california ii Copyright © 2014 by Jon P. Rebman and Michael G. Simpson Fifth edition 2014. isBn 0-918969-08-5 Copyright © 2006 by Jon P.
    [Show full text]