SUBJECT KEYWORDS: HUMAN SPHERE
  LAND   MARINE DEFINITIONS
lh III human sphere mh III human sphere  
LAND USE
lhu a land use mhi A marine industry  
lhum 1 mining, gravel pits mhim 1 mining, gravel pits incl. offshore oil drilling, quarries
lhuf 2 forestry      
lhufd a dendrology     natural history of trees, incl. botany, classification, distribution, crown cover
lhufm b forest management, forest land, forest ownership      
lhufs c silviculture     scientific forest culture techniques
lhufsp (1) forest planting     reproduction, reforestation
lhufst (2) forest tending: prescribed burning     incl. release cutting, thinning, pruning
lhufsf (3) forest fertilization      
lhufi d tree improvement     forest genetics, plant breeding
lhufh e forest harvesting     incl. cutting, transportation
lhufy f mensuration     forest measurement incl. volume, yield, growth
lhufp g forest protection      
lhufpf (1) fire control     incl. forest fires
lhufpi (2) insect control      
lhufpis (a) spruce budworm      
lhufpiz (b) other insect control: gypsy moth, spruce sawfly, balsam woolly aphid, balsam gall midge, beech scale, hemlock looper, saddled prominent, bronze birch borer, pitch nodule maker, spittlebugs, aphids, pine leaf aphid, tent caterpillars, satin moth, birch leaf-mining sawfly, sawyer beetles, spruce coneworm, spruce budmoth, bark beetles, pine sawflies, larch sawfly, white pine weevil, pine weevils, balsam twig aphid, red oak leaf-mining sawfly, chermes, leaf miners, cankerworms, willow flea weevil     incl. non-forest related control: mosquitoes, black flies
lhufpd (3) disease control      
lhufpw (4) weed control      
lhufw h wood science     wood fibers and wood uses
lhufg i forest engineering      
lhufe j forest economics      
lhufr k forest recreation      
lhufz l other forestry     e.g. forest life, history, education
lhua 3 agriculture      
lhuap a potatoes      
lhuag b grain crops      
lhuab c blueberries, berry crops      
lhuao d orchard crops: apples      
lhuaf e barnyards, feedlots, dairy farms      
lhuas f sheep      
lhuac g poultry      
lhuaz h other agriculture: vegetables      
lhuw 4 wildlife      
lhuwm a wildlife management      
lhuwh b hunting, trapping, fishing     non-recreational
lhui 5 manufacturing, industrial: construction industry, oil industry, pulpwood industry, paper industry, textile industry, tanneries, recreation industry, lumber industry, wood using industry, clothing industry, electronics industry mhii 2 manufacturing: boat building, fish processing  
  food processing mhib 3 food processing, drugs incl. food technology, storage
lhut 6 transportation, communications, utilities: roads, buses, trucking, railroads, airports, air roures     does NOT incl. water, sewer, gas, power lines; airports incl. air bases
lhus 7 trade, services, commericial      
lhuh 8 residential, housing      
lhuc 9 cultural features: schools, police, hospitals, rescue, churches, cemeteries, signs, military      
lhud 10 stream alterations, dredging, filling, land drainage, diversions mhid 4 dredging, stream alterations, filling, land drainage  
lhub 11 recreation areas: historic sites, parks, access     access: ways to get to recreation areas
lhup 12 preserves      
lhupo a open space, resource protection, resource constraint, land banks, riparian zones     open space incl. corridors, buffer zones; second two are Shoreland Zoning zones
lhupc b critical areas, natural areas     defined by Critical Areas Program
lhups c preserves, sanctuaries, management areas, easements     management areas incl. wildlife management areas, experimental forests
lhupp d public lands      
lhuu 13 urban development
urban planning,
    incl. development impacts on land;
incl. land use planning, synthesis/projection maps
lhur 14 rural areas     incl. unorganized areas
lhuo 15 ownership, property lines, boundaries mhir 5 ownership, boundaries ownership incl. property acquisition; use rights
LAND QUALITY
lhq b land quality      
lhqe 1 erosion     does NOT incl. beach erosion (see shore studies)
lhqr 2 runoff, nonpoint pollution mhqr 6 nonpoint pollution runoff is over land, it incl. stormwater transport mechanisms (river runoff is under hydrology)
lhqa 3 waste assimilation by land     incl. septic systems
lhqs 4 solid waste disposal, liquid waste disposal: composting, recycling, pyrolysis, incineration, land spreading, dumps, landfills, salt, sludge, septage, animal wastes, ash, leachate, waste source reduction mhio 7 ocean dumping  
lhqt 5 toxins on land, hazardous wastes     incl. spraying of biocides
lhqn 6 radiation on land      
WATER USE
lhw C water use     does NOT incl. hydro, recreation
lhws 1 water supply     water supply in general
lhwss a water supply, water demand     domestic/industrial supply
lhwsi b irrigation      
lhwsc c ice cutting      
lhwsa d flow augmentation, diversions     diversions: water alone: interbasin transfers
lhwsb e cooling water      
lhwn 2 navigation mhit 8 marine transportation  
lhwnt a water transport      
lhwnts (1) shipping, navigation, ferries mhits a shipping, navigation, ferries navigation incl. lighthouses
lhwntp (2) harbors, marinas mhitp b ports, harbors, marinas harbors incl. piers
lhwntc (3) canals      
lhwntl (4) logging      
lhwno b obstructions: bridges, dams, impoundments, waterfalls, rapids, gorges, locks mhito c obstructions: breakwaters, impoundments, bridges, seawalls, dams  
lhwnf c fishways mhitf d fishways  
lhwf 3 flow control, water storage      
lhwo 4 fish management mhif 9 commercial fisheries  
    mhife a fishing methods  
    mhifm b fish management incl. lobster pounds
lhwa 5 aquaculture mhia 10 aquaculture  
    mhiap a plant aquaculture  
    mhiapu (1) unicellular plant aquaculture  
    mhiapm (2) multicellular plant aquaculture  
    mhiaa b animal aquaculture  
    mhiaao (1) oyster aquaculture  
    mhiaam (2) mussel aquaculture  
    mhiaac (3) clam aquaculture  
    mhiaal (4) lobster aquaculture  
    mhiaas (5) salmon-trout aquaculture  
    mhiz 11 other marine industries  
WATER QUALITY
lhp D water quality mhp B water quality  
lhpt 1 water pollution types mhpt 1 water pollution types  
lhptt a toxins in water mhptt a toxins in water  
lhpttb (1) biocides mhpttb (1) biocides  
lhptth (2) heavy metals mhptth (2) heavy metals  
lhpto b oil, hydrocarbons mhpto b oil, hydrocarbons hydrocarbons incl. phenols
lhpth c thermal pollution mhpth c thermal pollution  
lhptp d particulates, undissolved solids mhptp d particulates, undissolved solids  
lhpta e sewage: coliform bacteria, viruses mhpta e sewage: coliform bacteria, viruses coliform is one form of biological monitoring
lhpts f sedimentation mhpts f sedimentation  
lhptb g biochemical oxygen demand mhptb g biochemical oxygen demand incl. chemical oxygen demand
lhptc h color mhptc h color  
lhptd i chlorine residual mhptd i chlorine residual  
lhptn j nutrients: nitrogen, phosphorus mhptn j nutrients: nitrogen, phosphorus  
lhpte k turbidity, visibility mhpte k turbidity, visibility incl. secchi disk depth, transparency, light transmission
lhptr l radiation in water mhptr l radiation in water  
    mhptf m biofouling  
lhptz m other pollutants: foam, salt, lignin, detergents, iron, minerals, bark, tannin, sawdust, odor, animal wastes, hydrogen sulfide, logs, sulfite waste liquor, reduced sulfur compounds, salt water intrusion mhptz n other pollutants: lignin, detergents, iron, minerals, bark, tannin, sawdust, odor, animal wastes, hydrogen sulfide, logs, sulfite waste liquor, reduced sulfur compounds, plastic, drilling effluents  
lhpm 2 water monitoring mhpm 2 water monitoring  
lhpmi a instream physical-chemical monitoring mhpmi a instream physical-chemical monitoring  
lhpmp b other water quality monitoring: point sources mhpmp b other water quality monitoring: point sources  
lhpc 3 water quality classifications mhpc 3 water quality classifications incl. trophic classification of lakes
lhpe 4 water quality engineering, water quality control mhpe 4 water quality engineering, water quality control incl. sewerage, treatment plants
AIR QUALITY
lha E air quality mha C air quality incl. noise pollution
ENGINEERING
lhb F ngineering mhb D engineering other than water quality engineering
ENERGY
lhe G energy mhe E energy  
lheg 1 energy generation mheg 1 energy generation  
lhegh a hydro power mhegt a tidal power  
lhegn b nuclear power mhegn b nuclear power  
lhegw c wood fuel; charcoal      
lhege d synthetic fuel: ethanol      
lhegf e fossil fuel: oil, coal, peat, gas, natural gas mhegf c fossil fuel: oil, gas incl. refineries
lhegs f solar power mhegs d solar power  
lhega g wind power mhega e wind power  
lhegz h other energy sources: fuel cells, waste conversion power, biomass conversion power, geothermal power, solar pond mhegz f other energy sources: wave power, ocean thermal power, seawater cooling, estuarine current power  
lhet 2 energy transmission, energy storage: pipelines, power lines, pumped storage, tank farms, oil terminals, electricity, thermal energy storage mhet 2 energy transmission, energy storage: pipelines, power lines  
lhec 3 energy consumption, energy conservation mhec 3 energy consumption, energy conservation conservation incl. cogeneration
RECREATION
lhr H recreation mhr F recreation incl tourism
lhrf 1 fishing mhrf 1 sport fishing  
lhrb 2 boating, canoeing, water safety, rafting mhrb 2 boating, water safety  
lhrc 3 camping, campsites, outdoor survival     camping incl. picnicking; outdoor survival incl. rescue work
lhra 4 hunting mhra 3 hunting  
lhrh 5 hiking, hiking trails      
lhrr 6 rock climbing      
lhrd 7 skiing      
lhrs 8 snowmobiling, atv, motor cycling      
lhre 9 bicycling      
lhrj 10 riding      
lhrg 11 golfing      
lhrm 12 swimming mhrm 4 swimming incl. beach recreation
lhrn 13 scenery mhrn 5 scenery incl. travel, aesthetics, photography
lhri 14 ice skating      
lhrk 15 games      
lhrv 16 gardening      
lhrw 17 bird watching mhrw 6 bird watching  
lhrx 18 nature observation mhrx 7 nature observation incl. naturalists
    mhrp 8 whale watching  
lhrq 19 cooking mhrq 9 cooking incl. foraging
lhrz 20 other recreation mhrz 10 other recreation  
SOCIAL SCIENCES
lhs I social sciences mhs G social sciences  
lhsa 1 economics: financing, taxation, costs, employment, marketing, insurance, exporting, importing mhsa 1 economics: financing, taxation, costs, employment, marketing, insurance, exporting, importing  
lhsd 2 demography mhsd 2 demography human population studies
lhsh 3 history mhsh 3 history  
lhsl 4 law: regulations, codes, ordinances, guidelines, court cases, mediation, zoning, growth controls, enforcement mhsl 4 law: regulations, codes, ordinances, guidelines, court cases, mediation, enforcement enforcement incl. crimes
lhss 5 social-political: management, political science, sociology, anthropology, psychology mhss 5 social-political: management, political science, sociology, anthropology, psychology management incl. institutional organizational arrangements; sociology incl. opinion surveys; pol. sci. incl. participation; anthropology incl. archaeology
lhse 6 education: extension, environmental education, technology transfer mhse 6 education: extension, environmental education, technology transfer  
lhsc 7 conservation: environmental action mhsc 7 conservation: environmental action incl. land preservation
KEYWORDS: GENERAL STUDIES
lg IV general studies mg IV general studies a residual category: incl. non specific subjects
SCIENCE
lgs A science mgs A science  
lgsr 1 research mgsr 1 research research dealt with as such
lgsm 2 modeling mgsm 2 modeling incl. computer models
lgse 3 scientific methods, scientific equipment mgse 3 scientific methods, scientific equipment  
POLICY STUDIES
lgp B policy studies mgp B policy studies  
lgpe 1 environmental impact statements, environmental assessments, site selection mgpe 1 environmental impact statements, environmental assessments, site selection site selection: studies under Maine's Site Selection Law
lgpg 2 general environmental impacts mgpg 2 general environmental impacts overall impact evaluations; not site specific
lgpm 3 multi-purpose studies, natural resources inventories mgpm 3 3 multi-purpose studies, natural resources inventories incl. typical planning studies which cover all topics, synthesis materials; only major topics used in conjunction with this code
lgpf 4 forecasts mgpf 4 forecasts  
lgpp 5 policy study methods mgpp 5 policy study methods  
INFORMATION MANAGEMENT
lgi C information management mgi C information management e.g. geographic information systems; design of information systems