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Division S-7 Forest & Range Soils
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  1. S-7, What we do! short summaries of current & past projects of S-7 members • Some pictures (some with descriptions) from our members Division S-7 Forest & Range Soils Who: Rob Harrison, Tom Terry, Connie Harrington Where: University of Washington, Weyerhaeuser Company, and USFS, Olympia, WA. contact: email or phone number Title: The effects of organic matter retention on long-term forest productivity. Nevada, USA: The effects of wild and prescribed fire on nutrient budgets and water quality. Contact: D.W. Johnson <> SE, SW, and NW US: Modeling the effects of atmospheric deposition, harvesting, climate change, and fertilization on forest nutrient cycles. Contact: D.W. Johnson <> Washington State, USA. Effect of wastewater irrigation on pathogen and nutrient contents in forest ecosystems. Xue, D. and R. Harrison <>. Washington State, USA. Laboratory and field investigations of odor emissions resulting from biosolids application to forest soils. Rosenfeld, P.E., R.B. Harrison and C.L. Henry. <>. Minas Gerais, Brazil. Biomass and nutrient distribution in Eucalyptus camaldulensis and E. pellita under different spacings. Contreras, C.E., G.G. Reis, M.G.F. Reis, E.J. Morais and R.B. Harrison <>. Minas Gerais, Brazil. Distribution of nutrients in Eucalyptus plantations of southeast Brazil. Reis, M.G., G.G. Reis, A. Bernardo and R.B. Harrison <>. Washington State, USA. Runoff from a high-altitude coniferous forest irrigated with municipal wastewater. Heid, S., R.B. Harrison and D. Xue <>. Washington State, USA. Biosolids application in a forested watershed: stormwater runoff water quality. Grey, M.A., C.L. Henry and R.B. Harrison <>. Washington State, USA. The chemistry of odors in biosolids applications. Rosenfeld, P., R.B. Harrison and C.L. Henry <>. Nevada, USA: Nutrient cycling in forests of the eastern Sierra Nevada. Contact: D.W. Johnson <> Nevada, USA: Abiotic N retention in soils. Contact: D.W. Johnson <> British Columbia, Canada. Influence of soil fauna on ecosystem processes. Contact: Cindy Prescott <> British Columbia, Canada. Rehabilitation of forest roads and landings with wood waste. Contact: Cindy Prescott British Columbia, Canada. Nutrition and sustainability of hybrid poplar plantations. Contact: British Columbia, Canada. Coarse woody debris dynamics in spruce-fir forests. Contact: Cindy Prescott British Columbia, Canada. Fertilization and vegetation control for improving conifer regeneration in coastal BC. Contact: Cindy Prescott New Mexico, USA: Contribution of ants and termites to restoration and maintenance of rangeland soil hydrological functions. Contact: Jeff Herrick <> New Mexico, USA: Soil quality indicator development for rangeland health monitoring. Contact: Jeff Herrick New Mexico, USA: Long-term changes in soil carbon and aggregation in rangeland soils. Contact: Jeff Herrick. New Mexico and Utah, USA: Resistance and resilience of rangeland soils and soil cryptogams. Contacts: Jayne Belnap and Jeff Herrick North Queensland, Australia. Matching rainforest species to site for reforestation using soil-landscape modelling and digital terrain analysis. Contact Robin Thwaites, SE Queensland, Australia. Predicting regolith-terrain attributes for plantation forests from DTMs and pedogeomorphic analysis. Contact Robin Thwaites, Robin Thwaites, Iowa USA: Nutrient supply changes across the growing season in deciduous forest soils. Mike Kelly <> Iowa USA: Potassium uptake kinetics in red maple seedlings. Mike Kelly Lake States, USA. Effects of mounding site preparation on soil carbon content and recovery in Lake States forested wetlands. contact: Glenn Mroz or Andrew Londo <>. New York, USA. Evaluation of hydrological and biogeochemical pathways and fluxes in a forested watershed in the Adirondack Mountains. Contact: Myron J. Mitchell New York, USA. Analysis of the Patterns of Nitrate Leaching in Response to Atmospheric Deposition of Nitrogen in the Northeastern United States Contact: Myron J. Mitchell Rhode Island, USA. Forest ecosystem carbon, nitrogen and phosphorus retention processes after agricultural abandonment Jana Compton <> New England, USA. Nitrogen retention in southern New England forests: upland and wetland comparisons, Jana Compton <> New England, USA. Carbon Sequestration Dynamics In Southern New England Terrestrial Ecosystems: Land Use Patterns and Global Change, and Mark Stolt Maine, U.S.A.: Management of the spruce-fir forest type on ecosystem processes: J.W. McLaughlin, R.D. Briggs, and M.L. McCormack. <> Maine, U.S.A.: Development of a forest classification system for Maine: J.W. McLaughlin and R.D. Briggs. <jmclaugh@apollo.umenfa.mai PSW Research Station, Redding, CA, U.S.A. Coordination of North American Network of Long-Term Soil Productivity Research. Some 4-dozen common-protocol soil disturbance and mitigation trials across the U.S. and Canada. Examines how changes in site organic matter and soil porosity influence processes controlling net primary productivity. Program began in 1989. Robert Powers (fswa/s=b.powers/ PSW Research Station, Redding, CA, U.S.A. The "Garden of Eden" Experiment. A unique 3-factor field experiment on a broad gradient of site qualities and soil types. Treatments are repeated applications of herbicides, nutrients, and insecticides vs. no treatment (all possible combinations). Eight plantation installations varying between 10 and 12 years of age. Robert Powers (fswa/s=b.powers/ University of Maine: Experimentlally induced "nitrogen saturation" in forested stream watersheds at the Bear Brook Watershed in Maine (BBWM). Ivan Fernandez <IVANJF@MAINE.MAINE.EDU> University of Maine: Biogeochemical cycling in a low elevation, commercial, spruce-fir forest at the Howland Integrated Forest Study (HIFS) Ivan Fernandez <IVANJF@MAINE.MAINE.EDU> University of Maine: The use of paper manufacturing residuals as a soil amendment and as an element in manufactured soil. Ivan Fernandez <IVANJF@MAINE.MAINE.EDU> University of Alaska Fairbanks: Subsurface N immobilization capacities in temperate and taiga forest soils. Jay Gulledge <> Harvard, MBL Ecosystems: Characterization and identification of atmospheric methane oxidizers in temperate and taiga forest soils. Jay Gulledge <> West Virginia, USA. Long-term forest productivity as affected by acidic deposition and forest harvesting. Mary Beth Adams <fswa/S=M.ADAMS/> Oregon and Washington, USA: Effects of harvest residue removal and early successional vegetation on long-term forest productivity. Jim Boyle and associates <>, see White Mountains, New Hampshire, USA: Changes in forest floor organic matter and chemistry in northern hardwood stands of different ages. Contacts: Ruth Yanai,, Mary Arthur,, and Tom Siccama, Pennsylvania and Florida, USA: Predicting lifespan of mycorrhizal roots using a cost-benefit analysis. David Eissenstat <> and Ruth Yanai <> No location: Comparison of nutrient uptake models. Contacts: Ruth Yanai <> Tjeerd Bouma, <> and Mike Kelly <> Washington State, USA. Road restoration using composted biosolids. Darlene Zabowski<>, Janita Gurung, Chuck Henry. Washington State, USA: Native Plant Restoration of Copper Mine Tailings. Contact: Paul Kramer <> & Darlene Zabowski <> Utah, USA: The effect of tree islands on soil properties and nutrient dynamics in the spruce-fir zone of Northern Utah. Helga Van Miegroet <> (435) 797-3175 Great Smoky Mountains, North Carolina and Tennessee, USA: Watershed scale variability of inorganic nitrogen dynamics in the Southern Appalachians. Contact: Helga Van Miegroet, (435) 797-3175; Niki Nicholas, Tennessee, U.S.A.: Mechanisms by Which Plant Carbon Utilization Adjusts to Alterations in the Hydrologic Cycle P.J. Hanson, N.T. Edwards <> Tennessee, U.S.A.: Belowground plant and mycorrhizal responses to altered hydrologic inputs. J.D. Joslin and E.G. O'Neill <> Tennessee, U.S.A.: Biological mechanisms by which whole-plant water use responds to alterations in the hydrologic cycle. M.A. Huston, S.D. Wullschleger, and L. Cooper <> New Mexico, USA: Contribution of ants and termites to restoration and maintenance of rangeland soil hydrological functions. Contact: Jeff Herrick <> New Mexico, USA: Soil quality indicator development for rangeland health monitoring. Contact: Jeff Herrick <> New Mexico, USA: Long-term changes in soil carbon and aggregation in rangeland soils. Jeff Herrick <> New Mexico and Utah, USA: Resistance and resilience of rangeland soils and soil cryptogams. Contacts: Jayne Belnap <> and Jeff Herrick <> Georgia, USA. Calcium cycling in forest soils of the southeastern USA with emphasis on input and output budgets. Thomas G. Huntington 770-903-9147. U. S. Geological Survey. Georgia, USA. Carbon cycling and carbon sequestration in forest soils in northwestern Mississippi in conjunction with US Forest Service. Thomas G. Huntington 770-903-9147. U. S. Geological Survey. Georgia, USA: Agronomic and silvicultural recycling of pulp and paper mill residues. Contact: Larry Morris, Georiga, USA: Utilization of poultry manure in agroforestry. Contact, Larry Morris, Georgia, USA: Vegetation establishment on reclaimed kaolin mined lands. Contact, Larry Morris, University of Georgia, USA: Changes in carbon and nitrogen dynamics of southern pine plantations across a management intensity gradient Contact, Larry Morris, California, USA: Role of decaying wood in N fixation and forest productivity. Contact: R.F. Powers, PSW Stn., USFS. <> California, USA: Role of soil invertebrates in soil processes in managed forests. Contact: R.F. Powers, PSW Stn., USFS. <> California, USA: Influence of understory vegetation on soil carbon accumulation and soil fertility processes. Contact: M. Busse, PSW Stn., USFS. <> California, USA: Root and soil microbial respiration responses to intensive forest management. Contact: M. Busse, PSW Stn., USFS. <> Saskatchewan, Canada. Impact of site preparation on soil properties and white spruce seedling growth in the Boreal forest. Contact K.C.J. Van Rees <> Saskatchewan, Canada. Root growth dynamics of Jack pine inoculated with mycorrhizae or rhizobacteria. Contact K.C.J. Van Rees <> Southeastern U. S. A: Environmental effects of high intensity management of short rotation hardwoods. Contacts: J. D. Joslin <>; F. C. Thornton <>; V. R.Tolbert, <> East Texas, USA: Moisture and nutrient limitation to loblolly pine growth at the western limit of its range. Contact: Richard Fisher <> Arkansas, USA: Influence of site preparation, fertilization, and vegetation control on site productivity in the "Arkansas flatwoods". Contact: Richard Fisher <> • S-7, Who we are! • The Forest and Range Soils (S-7) division of the Soil Science Society of America presently has 282 members from 45 states and 14 countries. There are 767 members that choose S-7 as a n affiliation, but not their first division. As expected, the highest percentage of membership comes from the major forest states of the Pacific Northwest, Southeast, and Northcentral US (Fig. 1). However, there is strong membership elsewhere in the US as well. Canada has the highest membership of any other country, with 25 members from essentially all over Canada (Fig. 2). Membership represents all continents except Antartica. Forest soils has been represented in SSSA since its inception in 1937, and was then known as V-A, Forest Soils. A vote of 419 to 9 established the Forest and Range Soils Division in 1954, and it has been active ever since. A loose affiliation exists with the International Soil Science Society, of which many are also members. The S-7 division is one of the strongest institutions considering Forest and Range Soil Science in the USA and the world. • S-7, Where do we come from? • Fig. 1. Location of S-7 members in US & world. S-7 DistList and Home Page!!! Since 1996, the S-7 division has maintained a distribution list and home page. The home page is located at: The usage of the home page has grown considerably over time, and presently averages about 8000 "hits" per week (Fig. 3). The distribution list can be joined by contacting Rob Harrison at:, and requesting to join. Messages can be posted to the list by sending to the following address: Historic photo of the Calhoun just after planting (1950's) Dan Richter & Mike Hofmockel Mtn Soils Conference, Dan Binkley, Robert Jandl and friends in Austria (Jim Boyle photo) Jim Boyle holds court (Jim Boyle photo) pages: %pages: #reqs: %reqs: kbytes: %bytes: domain ----- ------ ----- ------ ------ ------ ------ 7268: 22.70%: 15824: 24.71%: 437379: 23.96%: .edu (USA Educational) 6538: 20.42%: 14214: 22.20%: 398031: 21.80%: [unresolved numerical 8235: 25.72%: 13091: 20.44%: 355288: 19.46%: .com (Commainly USA) 3748: 11.70%: 8175: 12.77%: 234048: 12.82%: .net (Network) 1151: 3.59%: 2517: 3.93%: 59459: 3.26%: .ca (Canada) 586: 1.83%: 1288: 2.01%: 33842: 1.85%: .gov (USA Government) 599: 1.87%: 1053: 1.64%: 31712: 1.74%: .au (Australia) 459: 1.43%: 952: 1.49%: 30671: 1.68%: .uk (United Kingdom) 354: 1.11%: 708: 1.11%: 26218: 1.44%: .de (Germany) 459: 1.43%: 927: 1.45%: 24878: 1.36%: .us (United States) 263: 0.82%: 502: 0.78%: 16638: 0.91%: .org (Non-Profits) 166: 0.52%: 315: 0.49%: 16124: 0.88%: .jp (Japan) 177: 0.55%: 402: 0.63%: 15670: 0.86%: .se (Sweden) 106: 0.33%: 211: 0.33%: 10974: 0.60%: .mil (USA Military) 180: 0.56%: 273: 0.43%: 9327: 0.51%: .fr (France) 94: 0.29%: 171: 0.27%: 8932: 0.49%: .it (Italy) 76: 0.24%: 164: 0.26%: 8123: 0.44%: .fi (Finland) 76: 0.24%: 134: 0.21%: 6945: 0.38%: .br (Brazil) 62: 0.19%: 125: 0.20%: 5542: 0.30%: .no (Norway) 84: 0.26%: 185: 0.29%: 5448: 0.30%: .nl (Netherlands) 98: 0.31%: 266: 0.42%: 4987: 0.27%: .tr (Turkey) 74: 0.23%: 115: 0.18%: 4868: 0.27%: .gr (Greece) 88: 0.27%: 161: 0.25%: 4729: 0.26%: .es (Spain) 71: 0.22%: 164: 0.26%: 4698: 0.26%: .dk (Denmark) 46: 0.14%: 79: 0.12%: 4470: 0.24%: .be (Belgium) 80: 0.25%: 162: 0.25%: 4313: 0.24%: .my (Malaysia) 45: 0.14%: 107: 0.17%: 4077: 0.22%: .kr (South Korea) 44: 0.14%: 92: 0.14%: 3792: 0.21%: .pt (Portugal) 59: 0.18%: 104: 0.16%: 3661: 0.20%: .ch (Switzerland) 44: 0.14%: 89: 0.14%: 3530: 0.19%: .za (South Africa) 38: 0.12%: 92: 0.14%: 3360: 0.18%: .sg (Singapore) 36: 0.11%: 104: 0.16%: 3282: 0.18%: .ie (Ireland) 76: 0.24%: 164: 0.26%: 3242: 0.18%: .nz (New Zealand) 28: 0.09%: 45: 0.07%: 3038: 0.17%: .pl (Poland) 29: 0.09%: 69: 0.11%: 2998: 0.16%: .mx (Mexico) 37: 0.12%: 82: 0.13%: 2872: 0.16%: .il (Israel) 12: 0.04%: 32: 0.05%: 2205: 0.12%: .cz (Czech Republic) 47: 0.15%: 79: 0.12%: 2119: 0.12%: .hk (Hong Kong) 16: 0.05%: 22: 0.03%: 2092: 0.11%: .at (Austria) 25: 0.08%: 63: 0.10%: 1855: 0.10%: .ar (Argentina) 24: 0.07%: 49: 0.08%: 1568: 0.09%: .cl (Chile) 20: 0.06%: 52: 0.08%: 1551: 0.08%: .hr (Croatia) 38: 0.12%: 82: 0.13%: 1484: 0.08%: .th (Thailand) 9: 0.03%: 20: 0.03%: 1418: 0.08%: .ve (Venezuela) 9: 0.03%: 21: 0.03%: 1396: 0.08%: .arpa (Old style Arpanet) 22: 0.07%: 86: 0.13%: 1289: 0.07%: .co (Colombia) 12: 0.04%: 30: 0.05%: 1037: 0.06%: .sk (Slovak Republic) 22: 0.07%: 39: 0.06%: 946: 0.05%: .ru (Russian Federation) 17: 0.05%: 42: 0.07%: 821: 0.04%: .si (Slovenia) 10: 0.03%: 14: 0.02%: 660: 0.04%: .ro (Romania) 6: 0.02%: 9: 0.01%: 610: 0.03%: .uy (Uruguay) 4: 0.01%: 9: 0.01%: 609: 0.03%: .ee (Estonia) 4: 0.01%: 4: 0.01%: 600: 0.03%: .in (India) 9: 0.03%: 12: 0.02%: 597: 0.03%: .ph (Philippines) 3: 0.01%: 7: 0.01%: 574: 0.03%: .om (Oman) 5: 0.02%: 8: 0.01%: 573: 0.03%: .su (Former USSR) 23: 0.07%: 55: 0.09%: 491: 0.03%: .tw (Taiwan) 16: 0.05%: 27: 0.04%: 440: 0.02%: .hu (Hungary) 9: 0.03%: 18: 0.03%: 438: 0.02%: .cr (Costa Rica) 6: 0.02%: 9: 0.01%: 273: 0.01%: .yu (Yugoslavia) 13: 0.04%: 15: 0.02%: 252: 0.01%: .ua (Ukraine) 9: 0.03%: 15: 0.02%: 227: 0.01%: .id (Indonesia) 2: 0.01%: 7: 0.01%: 210: 0.01%: .ae (United Arab Emirates) 3: 0.01%: 9: 0.01%: 201: 0.01%: .pe (Peru) 2: 0.01%: 3: : 198: 0.01%: .na (Namibia) 3: 0.01%: 6: 0.01%: 164: 0.01%: .bz (Belize) 2: 0.01%: 5: 0.01%: 162: 0.01%: .bo (Bolivia) 4: 0.01%: 8: 0.01%: 143: 0.01%: .is (Iceland) 2: 0.01%: 2: : 104: 0.01%: .pk (Pakistan) 3: 0.01%: 5: 0.01%: 96: 0.01%: .jo (Jordan) 2: 0.01%: 2: : 96: 0.01%: .tt (Trinidad and Tobago) 2: 0.01%: 2: : 92: 0.01%: .zw (Zimbabwe) 1: : 1: : 88: : .bg (Bulgaria) 1: : 4: 0.01%: 87: : .gt (Guatemala) 1: : 4: 0.01%: 87: : .qa (Qatar) 3: 0.01%: 3: : 86: : .lt (Lithuania) 1: : 2: : 82: : .bh (Bahrain) 1: : 2: : 82: : .sn (Senegal) 5: 0.02%: 5: 0.01%: 81: : [unknown] 1: : 1: : 80: : .eg (Egypt) 1: : 3: : 75: : .gb (Great Britain) 1: : 1: : 64: : .gy (Guyana) 1: : 1: : 56: : .bm (Bermuda) 1: : 1: : 48: : .zm (Zambia) 1: : 4: 0.01%: 34: : .ke (Kenya) 1: : 2: : 10: : .cn (China) 3: 0.01%: 3: : 8: : .jm (Jamaica) 1: : 1: : 7: : .ky (Cayman Islands) 2: 0.01%: 2: : 5: : .lb (Lebanon) 2: 0.01%: 2: : 5: : .md (Moldavia) 1: : 1: : 5: : .int (International) 1: : 1: : 3: : .mt (Malta) 1: : 1: : 3: : .py (Paraguay) 1: : 1: : 3: : .mk (Macedonia) 1: : 1: : 2: : .kw (Kuwait) Cold times at Mountain Soils Conference (Jim Boyle photo) Smith, Lundkvist, Boyle and Birk, Abel Tasman, NZed. 2000. (Jim Boyle photo) a modern photo from with in the plots Dan Richter & Mike Hofmockel a soil profile from the Calhoun and Calhoun Soil Archive Dan Richter & Mike Hofmockel Fig. 3. S-7 list view and useage over time. Garth Voigt Dedication. The following is a dedication for the proceedings of the 9th North American Forest Soils Conference. (Conferences are held every 5 years. Garth had contributed papers to the first three of these conferences, in 1958, 1963 and 1968, as well as writing numerous other scientific publications which contributed greatly to our understandings of forest soil science. Garth’s mentoring strongly influenced numerous graduate students, including many who are researching and teaching forestry and soil science today.) Garth Voigt, native of Merrill in central Wisconsin, studied soil science and plant physiology at the University of Wisconsin, Madison, where he completed his Ph.D. in 1951, working with Sergei “Doc” Wilde and other forest soils peers of the era there. These included Don White, Don Mader, Earl Stone, Gene Steinbrenner, Chet Youngberg, Chuck Davey and others who have contributed to previous NAFSC volumes. During 1950 to 1954 Garth was Instructor and Assistant Professor of Soil Science at Wisconsin. From 1954 through 1988 Garth was Assistant, Associate, Professor, then Margaret K. Musser Professor in the Yale School of Forestry (and, latterly Environmental Studies), where he also served three terms as Acting Dean. At Yale Garth’s collaborations with Professors H. J. Lutz, D. M. Smith and F. H. Bormann and hundreds of graduate students led to expanded horizons and deepened insights of forest-soils interactions. Garth’s research combined plant physiology and soil science in investigations of root system sorption of nutrients, mycorrhizae, mineral weathering in rhizospheres, soil nitrogen dynamics, acid rain, and “biogeochemistry” before the term became common jargon. Garth’s keen intellectual insights, kind, gentle, dry-humored manner, and firm and encouraging mentorship influenced numerous M.F., M.S. and PhD students and others who benefited from his congenial friendship and insightful writings. His presence and work had strong influence on integrating soil science and silviculture. An avid fly fisherman and conservationist, Garth was active in wetlands and waterways conservation in Connecticut and has long been involved with the Henry’s Fork Foundation in Idaho, open spaces issues in Bozeman, and science matters with the Greater Yellowstone Coalition. Garth and his lifelong companion and wife, Jane, reside in Bozeman, Montana, close to trout, trails and wild places. Who: From Duke-D. D. Richter, Rytas Vilgalys, Dean Urban, Dharni Vasudevan, Jeannie McLain, Ryan Fimmen and Michael Hofmockel. From Georgia-Daniel Markewitz, David Coleman; From Aberdeen UK-Pete Smith. From USFS Mac Callaham(Georgia), Kurt Johnsen, Kim Ludovici, Steve McNulty, Kathy O'Neill, and Felipe Sanchez. Contact: Title: Recovery of Soil Complexity and Fertility Following Land Use Disturbance on Time Scales of Years to Centuries Who: Jeff Herrick, Arlene Tugel, Dave Pyke, Pat Shaver, Mike Pellant, Justin Van Zee, Kris Havstad and numerous other collaborators Where: US, Mexico and Central America (based at USDA-ARS Jornada Experimental Range, Las Cruces, NM) Contact: Title: Integrated soil and vegetation assessment and monitoring systems for grassland, shrubland and savanna ecosystems. Description: We are calibrating and developing statistical sampling requirements for a suite of soil and vegetation indicators. A quantitative monitoring manual and the second edition of a qualitative assessment protocol will be published early 2003. Who: Jeff Herrick, Jayne Belnap and Hildy Reiser Where: USDA-ARS Jornada Experimental Range, Las Cruces, NM and Holloman Air Force Base, Alamogordo, NM Contact: Title: Soil and vegetation resistance and resilience: effects of disturbance type, frequency, intensity and timing for 5 arid soils Subject: Soil carbon cycling in an upland oak forest of Tennessee. Who: Paul Hanson, Susan Trumbore, J. Gaudinski, et al. Where: Oak Ridge National Laboratory, Oak Ridge, TN 37831-6422 and other institutions Title: Enriched Background Isotope Study (EBIS) Description: Emissions from waste incinerators enriched the 14C signature of upland oak forests in 1999. We are tracking the fate of this 14C with a multi-year litter (both enriched and background) manipulation study to quantify soil carbon cycling process. See also Poster #2114 Who: L. A. Morris, C.R. Jackson Jackson and P. B. Bush Where:University of Georgia, GA contact: Title: Modeling Filtering Capacity of Streamside Management Zones for Colloidal Material and Associated Contaminants Who: E. D. Dickens, D. J. Morehead, P. b. Bush and L. A. Morris Where:University of Georgia, GA contact: Title: Demonstration of Best Management Practices for Broiler and Layer Litter Applications in Loblolly and Slash Pine Stands Washington State, USA. The fate of trace metals in land application systems. Harrison, R.B., C.L. Henry, D. Xue <> New Zealand & Australia. The use of soil information in plantation forestry for NZ and Australia. Contact Tim Payn, ; La Selva, Costa Rica: Amelioration of degraded rain forest soils by plantations of native trees. Contact: Richard Fisher, Montana, USA: In-situ evaluation of rhizosphere chemistry of an invasive plant (Centaurea maculosa) in native Palouse prairie. Contact: Tom DeLuca <> Montana, USA: Influence of fire suppression and wildfire on nitrogen cycling in ponderosa pine forests. Urszula Chormanska and Tom DeLuca <> Montana, USA: Effect of selection cutting and underburning on nutrient cycling in second growth ponderosa pine forests. Contact: Tom DeLuca <> Montana, USA: Nitrogen and moisture dynamics under even and uneven aged ponderosa pine stand structures. Tom DeLuca and Kevin Ohara. Contact: Tom DeLuca <> Virginia,USA: Soil quality monitoring for assessing forest management practices. Jim Burger <> Virginia, USA: Restoring forests on drastically disturbed land---Jim Burger <> South Carolina, USA: Sustaining the production and function of wetland forest soils. Jim Burger <> Nevada, USA: The effects of elevated CO2 on ponderosa pine. Contact: D.W. Johnson <> British Columbia, Canada. Predicting rates of organic matter decomposition in forests and silvicultural systems. Contact: Cindy Prescott British Columbia, Canada. Influence of species mixtures on litter decomposition. Contact: Cindy Prescott Cindy Prescott British Columbia, Canada. Influence of tree species on nitrogen cycling. Contact: Cindy Prescott Jennifer Knoepp lecturing (Jim Boyle photo) Dave Van Lear with nice soil pit (Jim Boyle photo) One month use in 2002 Tour group Cross Creek House (Jim Boyle photo)