Download - CARBON AND COAL How does chestnut fit in?
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CARBON AND COALHow does chestnut fit
in?
Frederick L. PailletDept of Earth Sciences
University of Maine
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DO GREENHOUSE GASES REALLY
MATTER?• SOLAR HEAT SOURCE FOR PLANET
EARTH• TEMPERATURE AND DISTANCE
DETERMINES AVERAGE EARTH TEMP• EQUILIBRIUM TEMPERATURE IS ONLY
-5 DEGREES F• APPLIES TO THE TOP OF THE
ATMOSPHERE (CLOUD TOPS)• BLANKET OF GHG MAKES A 55 F
DIFFERENCE!
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GEOLOGIC CARBON CYCLE
MAJOR CLIMATE CHANGES OF THE PAST• SELF–REGULATING PROCESS
• VOLCANOS EMIT CO2• WARMER MORE ACTIVE ATMOSPHERE –
MORE STORMS AND RAIN• PACE OF EROSION INCREASES • MORE SEDIMENTS DEPOSITED IN SEAS• MORE CARBON BURIED IN SEA FLOOR• CYLE TAKES MILLIONS OF YEARS
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BUT THERE’S NO REAL EVIDENCE
• WE HAVE ALL EXPERIENCED MAJOR GLOBAL WARMING – IT’S AN EVENT CALLED SUMMER
• THE HUGE DIFFERENCE IS CAUSED BY A SMALL TILT OF THE EARTH’S AXIS
• ICE AGES DRIVEN BY MINISCULE CHANGES IN EARTH ORBIT– EARTH ORBIT IS SLIGHTLY ELLIPTICAL (1-6%)– ICE AGE WHEN SUMMER IS AT LONG AXIS– INTERGLACIAL (TODAY) WHEN SUMMER AT SHORT
AXIS
• THESE SMALL CHANGES PRODUCE A MILE OF ICE OVER NEW YORK AND A DOUBLING OF FLORIDA THROUGH SEA LEVEL CHANGES
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CLIMATE CHANGE INVOLVES CARBON
• ICE AGE THEORY PROBLEM:– SOLAR CHANGE OPPOSITE IN HEMISPHERES– SOUTHERN GLACIERS SHOULD BE OUT OF PHASE– IN FACT THEY ARE IN ALMOST PERFECT PHASE
• COLD SUMMERS IN CANADA INFLUENCE THE WHOLE WORLD
• ARGENTINA FREEZES IN SPITE OF WARMER SUMMERS
• A 90 PPM (<50%) CHANGE IN CO2 MADE THE DIFFERENCE
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THE BASIC FACTS• CO2 WAS AT 280 PPM 150 YRS AGO• CO2 NOW AT 380 PPM (30% INCR)• PROBABLE 0.6 C (1.2 F) CHANGE NOW• CO2 LIKELY EXCEED 50% BY 2050• PAST 50% INCR ENDED ICE AGE• PARTICULATES MAY HAVE INITIALLY OFFSET
HEATING• A NEW EXPERIMENT ON A VERY SENSITIVE
SYSTEM• WE ARE SQUANDERING VALUABLE RESOURCES
ALONG THE WAY
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CARBON MADE SIMPLE• ATMOSPHERE 100 units
– (Before 1700)• RESERVOIRS
– Vegetation 70– Soil & litter 250– Fossil fuel 1000– Deep ocean 5000
• EMISSIONS– Fossil fuel 0.75– Land use 0.25
• DESTINATION– Atmosphere 0.40– Shallow ocean 0.25– Unknown 0.35
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WOOD FOR CARBON STORAGE
• TYPICAL NEW TEMPERATE FOREST STORES TON/ACRE/YEAR CARBON
• CHESTNUT COULD INCREASE THAT BY 10-20% - FASTER GROWTH, BIGGER TREE
• MILLIONS OF TONS FOR POWER/YR• MILLIONS OF ACRES OF FORMER FIELD
NOW FORESTED IN EAST• ALBEDO AND TRANSPIRATION EFFECTS• TEMPERATE TREES MAKE A CONTRIBUTION
BUT NOT THE ANSWER
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OTHER SIDE OF CARBON USE – MINE
RECLAMATION• EASTERN COAL MINES ON PRIME CHESTNUT
HABITAT• COMMON PRACTICE – REDUCE SLOPES,
RECLAIM AS PASTURE• CHESTNUT BELONGS ON MINED LAND
– THE NATURAL LAND COVER– ADAPTED FOR POOR SOILS ON ROCKY SLOPES– CAN SURVIVE DROUGHT AND LEACHING– CAPABLE OF RAPID GROWTH, RESPROUTING IF
INJURED– WILDLIFE SUPPORT VIA NUTS AND BROWSE
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TACF NOW A PARTNER IN MINE LAND REFORESTATION
• 1.3 MILLION ACRES OF LAND FOR RECLAMATION
• MAJOR PORTION LEFT FROM PRE-LAW TIMES
• CHESTNUT BELONGS ON THESE LANDS• MAJOR OPPORTUNITY FOR RE-
INTRODUCTION OF CHESTNUT• DOES NOT IMPLY SUPPORT FOR
MOUNTAIN-TOP REMOVAL
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THE PRE-MINE FOREST AT VA TECH REFORESTATION
STUDY SITE
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RECLAMATION BACKGROUND
• DRIVEN BY 1977 SMCRA LAW • DESIGNED TO STABILIZE LAND AND MINIMIZE EROSION• REGULATORS TRADITIONALLY EXPECT
– SMOOTH AND COMPACTED SURFACE– DENSE GRASS AND LEGUME SOD
• RECLAMATION REQUIRES– MECHANICAL COMPACTION– ABUNDANT SEED AND FERTILIZER– SEDIMENT CATCHMENT PONDS
• FINAL PRODUCT BECOMES POOR PASTURE – FULL OF INVASIVE SHRUBS– HOSTILE TO TREE ESTABLISHMENT
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APPALACHIAN REGIONAL REFORESTATION
INITIATIVEAppalachian RegionalAppalachian RegionalReforestation InitiativeReforestation Initiative
Trees for Appalachia’s FutureTrees for Appalachia’s Future
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ARRI is a Partnership
Landowners
OSM
Academics
State RegulatoryAuthorities
EnvironmentalGroups
Industry
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GOALS OF THE INITIATIVE
• Plant more high-value hardwood trees on reclaimed surface mined lands in Appalachia
• Increase the survival rate of the planted trees
• Increase growth rates and productivity from the surviving trees
• Expedite the establishment of forest habitat through natural succession
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Statement of Mutual Intent• The 161 signatories collected to date represent 77
different organizations:• 27 Government Agencies
• 20 Environmental Groups
• 16 Industry Organizations
• 9 Academic Institutions
• 5 Citizen Groups
• Kentucky Governor Ernie Fletcher signed on 8/17/05• The National Mining Association signed on 9/20/05
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ARRI ORGANIZATION
• CORE TEAM– US OFFICE OF SURFACE MINING– 7 STATES IN THE APPALACHIAN
COAL REGION
• SCIENCE TEAM– TEAM LEADERS
• DR JIM BURGER, VIRGINIA TECH UNIV• DR DONALD GRAVES, UNIV OF KENTUCKY
– MORE THAN 20 TEAM MEMBERS FROM 10 UNIVERSITIES AND THE USFS
• TACF PARTNERSHIP (AMONG OTHERS)
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MOUNTAINTOP REMOVAL MINING
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CONVENTIONAL RECLAMATION CREATES A
“FESCUE DESERT”
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TREES ON RECLAIMED PASTURE
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WHERE WILL TREES GROW ON SPOIL?
• IDENTIFY NATURAL FOREST ON DUMPED SPOIL
• OPTIMAL GROWTH WHEN LOOSE SPOIL AT LEAST 4 FEET DEEP
• DENSE TURF LIMITS TREE GROWTH– COMPETITION FOR LIGHT– COMPETITION FOR MOISTURE– ATTRACTION FOR RODENTS
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REAL GROWTH CAN BE ACHIEVED
COMPARE PLANTED PINE ON LOOSE SPOIL WITH PINE ON COMPACTED SOIL AFTER 9 YEARS
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FRA RECLAMATION(FORESTRY RECLAMATION APPROACH)
• STEP 1 – CREATE SUITABLE ROOTING MEDIUM (4 FEET OF “BEST AVAILABLE” MATERIAL)
• STEP 2 – LOOSELY GRADE SPOIL TO CREATE NON-COMPACTED MEDIUM
• STEP 3 – USE GROUND COVER CONSISTENT WITH TREE GROWTH (50% IDEAL)
• STEP 4 – PLANT TWO TYPES OF TREES– EARLY SUCCESSION FOR COVER AND WILDLIFE– VALUABLE HARDWOOD TREES FOR TIMBER
• STEP 5 – USE PROPER PLANTING METHODS (PROFESSIONAL PLANTERS)
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FRA ADVISORIES
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ADVISORY #3 - LOW COMPACTION GRADING TO ENHANCE REFORESTATION SUCCESS ON COAL SURFACE MINES
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LOOSE DUMPED SPOIL
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FRA SLOPE CONDITIONS
• HUMMOCKS AND EXPOSED ROCKS INSTEAD OF CAT TRACKS
• INFILTRATION INSTEAD OF RUNOFF• HYDRAULIC RESPONSE (PEAK AND
BASEFLOW) SIMILAR TO FOREST• SEDIMENT CAUGHT IN HOLLOWS• NATURAL-LOOKING SURFACE• TREES NOT PLANTED IN ROWS
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RECENTLY PLANTED FRA SLOPE
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TYPICAL YEAR-OLD TREE
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Mineland Reforestation- Starfire Mine, KYMineland Reforestation- Starfire Mine, KY
1 yr 3 yr 7 yr
Non-compacted Site
Compacted Site
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10-YEAR OLD PLANTATION
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NATURAL RECRUITMENT OF
NATIVE TREES
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EARLY CHESTNUT TRIALS
FULLY AMERICAN STOCKMike French, Univ of Kentucky
Brian McCarthy, Ohio Univ
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MINE SPOIL MATERIALSBROWN SANDSTONE, GRAY SANDSTONE, AND
SHALE
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CONTROLED SUBSTRATE
EXPERIMENTS• TEST PLOTS ON WEATHERED AND UNWEATHERD SPOIL• OTHER PLOTS OF MIXED SUBSTRATE AND PURE SHALE• RIPPED PLANATIONS IN COMPACTED SOIL• MONITOR INFILTRATION AND LEACHATE• COARSE SOILS MINIMIZE INK DISEASE• AT LEAST 70% SURVIVAL ON ALL PLOTS WITH
– UNCOMPACTED SUBSTRATE– LOW HERBACEOUS COMPETITION
• HIGHER Ph AND SALINITY IN UNWEATHERED SPOIL– VALUES NEAR UPPER TOLERANCE LIMIT– TREES SHOW STRESS BUT SURVIVE AND GROW
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BROWN SANDSTONE RESULTS
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GRAY SANDSTONE RESULTS
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MINE RECLAMATION – A PATHWAY FOR CHESTNUT INTO ITS FORMER
RANGE
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IMPORTANT ISSUES• TECHNICAL CHALLENGES
– FLUSHING OF NUTRIENTS FROM COARSE SOIL– INNOCULATION - NATURAL BACTERIA, FUNGI– DROUGHT STRESS - COARSE SOIL SUBSTRATE– MANAGE SPREAD OF INK DISEASE
• REGULATORY CULTURAL ENVIRONMENT– REGULATORS TO MODIFY RULES– INDUSTRY TO AVOID RELAXING COMPLIANCE
• NEED TO FIT VARIABLE SITE CONDITIONS– DIFFERENT TERRAIN CONDITIONS– DIFFERENT CLIMATE AND SOIL PROPERTIES– DEVELOP “SYNTHETIC SOIL” RECIPES TO SUIT SITES
• EMPHASIS ON COMMERCIAL TIMBER PRODUCTS– BUILT INTO REGULATORY “BEST USE” CONCEPT– DOWNPLAYS CULTURAL AND ECOLOGICAL VALUES
• AVOID IMPLIED APPROVAL OF OTHER INDUSTRY PRACTICES
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SUMMARY
• CHESTNUT-DOMINATED FOREST BELONGS ON APPALACHIAN MINE SITES
• MINE RECLAMATION A POTENTIAL PATHWAY TO GET CHESTNUT INTO THE FUTURE FOREST
• MOST RELEVANT CARBON ISSUE FOR CHESTNUT IS REFORESTATION OF FORMER MINED LANDS
• ARRI PROJECTS DEMONSTRATE THAT FOREST CAN BE RE-ESTABLISHED ON MINED LAND
• ARRI PARTNERSHIP A NATURAL WEDDING OF TACF AND ENVIRONMENTAL INTERESTS