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A simple stochastic weather generator for ecological modeling

Stochastic weather generators are useful tools for exploring the relationship between organisms and their environment. This paper describes a simple weather generator that can be used in ecological modeling projects. We provide a detailed description of methodology, and links to full C++ source code (http://weathergen.sourceforge.net) required to implement or modify...

https://www.fs.usda.gov/treesearch/search?keywords=%22Generations%22&%3Bf%5B0%5D=author_facet%3A%22Roberds%2C%20James%22&f%5B0%5D=author_facet%3A%22Kim%2C%20John%22&f%5B1%5D=author_facet%3A%22Eagar%2C%20Chris%22&f%5B2%5D=author_facet%3A%22Miller%2C%20James%22&f%5B3%5D=author_facet%3A%22Marcano-Vega%2C%20Humfredo%22&f%5B4%5D=author_facet%3A%22Guldin%2C%20James%22&f%5B5%5D=author_facet%3A%22Wood%2C%20Frederica%22

Author(s):

A.G. Birt; M.R. Valdez-Vivas; R.M. Feldman; C.W. Lafon; D. Cairns; R.N. Coulson; M. Tchakerian; W. Xi; Jim Guldin

Year:

2010

Keywords:

weather generator, climate, stochastic model, ecology

Source:

Environmental Modelling and Software 25(10):1252-1255

Pest and pesticide management on southern forests

Federal law requires certification for all commercial pesticide applicators. The law also requires private applicator certification for the purchase or application of "restricted use" pesticides. The Environmental Protection Agency (EPA) has set minimum competency standards for certification of pesticide applicators. These standards include a practical...

Author(s):

James H. Miller; Ken L. McNabb; Brad Barber; Larry M. Bishop; Michael L. Thompson; John W. Taylor

Year:

1994

Keywords:

Source:

U.S. Department of Agriculture, Forest Service, Southern Region, Management Bulletin R8-MB 60.

Restoration and management of shortleaf pine in pure and mixed stands--science, empirical observation, and the wishful application of generalities

Shortleaf pine (Pinus echinata Mill.) is the only naturally-occurring pine distributed throughout the Ozark-Ouachita Highlands. Once dominant on south-facing and ridgetop stands and important in mixed stands, it is now restricted to south- and southwestfacing slopes in the Ouachita and southern Ozark Mountains, and to isolated pure and mixed stands...

Author(s):

James M. Guldin

Year:

2007

Keywords:

Source:

In: Kabrick, John M.; Dey, Daniel C.; Gwaze, David, eds. Shortleaf pine restoration and ecology in the Ozarks: proceedings of a symposium; 2006 November 7-9; Springfield, MO. Gen. Tech. Rep. NRS-P-15. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 47-58.

Effects of site preparation on timber and non-timber values of loblolly pine plantations

This study evaluated the timber and non-timber values of the forest stands generated by four site preparation methods tested in the Tuskegee National Forest 15 yr earlier. The timber values of the forest stands were assessed with the timber yields predicted by the SE TWIGS model. Non-timber benefits were evaluated through the Contingent Valuation Method. Two hundred...

Author(s):

Jianbang Gan; Stephen H. Kolison; James H. Miller; Tasha M. Hargrove

Year:

1998

Keywords:

Economic analysis, Contingent valuation, Multi-attribute assessment, National forest, Regeneration

Source:

Forest Ecology and Management. 107: 47-53.

Public Preferences of Loblolly Pine (Pinus taeda) Stands Generated by Different Site Preparation Methods

In recent decades, the public's demand for non-timber products and services from forests has dramatically increased. To meet these diverse demands, particularly from public forests, has called for the critical evaluation of non-timber as well as timber benefits of forest resources. However, it has been a challenge to elicit and quantify public preferences for non...

Author(s):

Jianbang Gan; Stephen H. Kolison; James H. Miller

Year:

1998

Keywords:

Source:

Wagner, RG. and D.G. Thompsou (camp.). 1998. Third International Conference on Forest Vegetation Ma~agcmcnt: Popular summaries. No. 141.

Hardwood Chip Export Mills in Arkansas - Implications for Sustainability

Abstract - Two new hardwood chip export mills (HCEM?s) recently began operating in west-central Arkansas,and a third is planned. Together,they will require 1.1 million tons of nonhickory hardwood roundwood annually, primarily from the nonindustrial private sector. Overall, total physical and operable growth surpluses could support the new sector, but...

Author(s):

John L. Gray; James M. Guldin

Year:

2001

Keywords:

Source:

Gen. Tech. Rep. SRS 41. Asheville, NC: U.S.Department of Agriculture, Forest Service, Southern Research Station. pp. 113-123

Landscape-Scale Research In The Ouachita Mountains Of West-Central Arkansas: General Study Design

Abstract A landscape-scale study on forest ecology and management began in 1995 in the eastern Ouachita Mountains. Of four large watersheds, three were within the Winona Ranger District of the Ouachita National Forest, and a major forest industry landowner largely owned and managed the fourth. These watersheds vary from 3,700 to 9,800 acres. At this...

Author(s):

James M. Guldin

Year:

2004

Keywords:

Source:

Gen. Tech. Rep. SRS-74. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 143-145

A Regional Study on the Influence of Woody and Herbaceous Competition on Early Loblolly Pine Growth

A common study design has been installed at 14 locatoins Southwide to track the growth of loblolly pine established with four different competition control treatments: (a) no control, (b) woody control, (c) herbaceous control, and (d) total control after site preparation. This regionwide investigation is the Competition Omission Monitoring Project (COMP). During the...

Author(s):

James H. Miller; Bruce R. Zutter; Shepard M. Zedaker; M. Boyd Edward; James D. Haywood

Year:

1991

Keywords:

Source:

Southern Journal of Applied Forestry 15 (1991) : 169-179

A field guide for the identification of invasive plants in southern forests

Invasions of nonnative plants into forests of the Southern United States continue to go unchecked and only partially unmonitored. These infestations increasingly erode forest productivity, hindering forest use and management activities, and degrading diversity and wildlife habitat. Often called nonnative, exotic, nonindigenous, alien, or noxious weeds, they occur as...

Author(s):

James H. Miller; Erwin B. Chambliss; Nancy J. Loewenstein

Year:

2010

Keywords:

Alien plants, exotic weeds, forest noxious plants, invasive exotic plants, invasive nonindigenous plants

Source:

General Technical Report SRS–119. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 126 p.

The Dynamic General Vegetation Model MC1 over the United States and Canada at a 5-arcminute resolution: model inputs and outputs

Land managers need to include climate change in their decisionmaking, but the climate models that project future climates operate at spatial scales that are too coarse to be of direct use. To create a dataset more useful to managers, soil and historical climate were assembled for the United States and Canada at a 5-arcminute grid resolution. Nine CMIP3 future climate...

Author(s):

Ray Drapek; John B. Kim; Ronald P. Neilson

Year:

2015

Keywords:

MC1, Dynamic Global Vegetation Model, climate change, carbon, fire, streamflow.

Source:

Gen. Tech. Rep. PNW-GTR-904. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 57 p.

Estimating leaf area and above-ground biomass of forest regeneration areas using a corrected normalized difference vegetation index

The objective of this study was to investigate the regression relations between vegetation indices derived from remotely-sensed data of single and mixed forest regeneration plots. Loblolly pine (Pinus taeda L.) seedlings, sweelgum (Liquidambar styraciflua L.) seedlings and broomsedge (Andropogon virginicus L.)...

Author(s):

Tommy L. Coleman; James H. Miller; Bruce R. Zutter

Year:

1992

Keywords:

Source:

In: Proceedings of the ASPRS/ASCM/RT 92 Convention - Monitoring and Mapping Global Change. Vol. 4. Remote Sensing and Data Acquisition. 3-8 August 1992. Washington, D.C. [Bethesda, MD]: Am. Sot. Photogram. & Rem. Sens.: 214-230.

Computer-based synthetic data to assess the tree delineation algorithm from airborne LiDAR survey

Small Footprint LiDAR (Light Detection And Ranging) has been proposed as an effective tool for measuring detailed biophysical characteristics of forests over broad spatial scales. However, by itself LiDAR yields only a sample of the true 3D structure of a forest. In order to extract useful forestry relevant information, this data must be interpreted using mathematical...

Author(s):

Lei Wang; Andrew G. Birt; Charles W. Lafon; David M. Cairns; Robert N. Coulson; Maria D. Tchakerian; Weimin Xi; Sorin C. Popescu; James M. Guldin

Year:

2013

Keywords:

computers, synthetic data, tree delineation, algorithm, LiDAR

Source:

Geoinformatica 17(1): 35-61

Woody plants and woody plant management: ecology, safety, environmental impact

Wise and effective woody plant management is an increasing necessity for many land uses and conservation practices, especially on forests and rangelands where native or exotic plants are affecting productivity, access, or critical habitat. Tools and approaches for managing woody plants have been under concerted development for the past 50 years, integrating mechanical...

Author(s):

James H. Miller

Year:

2001

Keywords:

Source:

Forest Science 47 (4) 589-590

Restoring the shortleaf pine - bluestem grass ecosystem: An economic evaluation

The shortleaf pine (Pinus echinata Mill.) - bluestem grass (Andropogon spp.) ecosystem that existed prior to European settlement is being restored on 155,000 acres in the Ouachita National Forest of western Arkansas. Preliminary analyses indicate that revenues generated in the affected area will decline because of reduced sale...

Author(s):

M.M. Huebschmann; T.B. Lynch; D.K. Lewis; James M. Guldin

Year:

1999

Keywords:

Red-cockaded woodpecker, shortleaf pine, bluestem grass, IMPLAN

Source:

Proceedings of the Society of American Foresters 1999 National Convention, Portland, Oregon, Sept. 11-15, p. 537-538

Proceedings of the Fifth Biennial Southern Silvicultural Research Conference

Forest Service, forest industry, and university representatives present 4 general session papers giving projections for the 2030 forest and an additional 93 papers dealing with 15 subject areas: atmospheric influences, ecophysiology, seedling production, site preparation, pine regeneration, pine management, hardwood regeneration, hardwood management, vegetation,...

Author(s):

James H. Miller; [Compiler]

Year:

1989

Keywords:

Source:

Gen. Tech. Rep. SO-74. New Orleans, LA: U.S. Dept of Agriculture, Forest Service, Southern Forest Experiment Station. 618 p.

Crown Health of Reserve Hardwood Trees Following Reproduction Cutting in the Ouachita Mountains

Abstract - Monitoring the health of reserve hardwood trees is being performed as part of the Ecosystem Management Research Project on the Ouachita and Ozark National Forests in Arkansas. A suite of crown variables (diameter, live crown ratio, density, dieback, and foliage transparency) was used to detect significant changes in reserve tree health...

Author(s):

Dale A. Starkey; James M. Guldin

Year:

2004

Keywords:

Source:

Gen. Tech. Rep. SRS-74. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 92-97

Nutrient loss from disturbed forest watersheds in Oregon's Coast Range

Dissolved nutrients were monitored bi-weekly in stream water draining 14 upland watetzhcds in Oregon's Coast Range after sprayin g with 2,4,5-T + 2,4-D, clearcut harvesting and slash burning. Anion generation and leaching were primarily studied. The nitrate concentrations fell and the bicarbonate concentrations rose during summer low-flows from treated watersheds...

Author(s):

James H. Miller; M. Newton

Year:

1983

Keywords:

Source:

Agro-Ecosystems 8: 153-167.

A management guide for invasive plants in southern forests

Invasions of nonnative plants into forests of the Southern United States continue to spread and include new species, increasingly eroding forest productivity, hindering forest use and management activities, and degrading diversity and wildlife habitat. This book provides the latest information on how to organize and enact prevention programs, build strategies,...

Author(s):

James H. Miller; Steven T. Manning; Stephen F. Enloe

Year:

2013

Keywords:

Alien plants, exotic weeds, forest noxious plants, invasive exotic plants, invasive nonindigenous plants

Source:

Gen. Tech. Rep. SRS–131. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 120 p.

Uneven-aged silviculture of longleaf pine

The use of uneven-aged silviculture has increased markedly in the past 20 years. This is especially true in the southern United States, where the use of clearcutting and planting is often viewed as a practice whose emphasis on fiber production results in unacceptable consequences for other values, such as those that benefit from maintenance of continuous forest cover...

Author(s):

James M. Guldin

Year:

2006

Keywords:

uneven-aged, longleaf pine, Pinus palustris

Source:

In: Shibu, Jose; Jokela, Eric J.; Miller, Deborah L., eds. The longleaf pine ecosystem: Ecology, silviculture, and restoration. New York, NY: Springer: 217-241.

Tree seedling growth and mortality responses to manipulations of calcium and aluminum in a northern hardwood forest

To assess potential forest compositional responses to exchangeable soil calcium (Ca_exch) and aluminum (Al_exch), we characterized light-dependent growth and mortality of tree seedlings under amendments of CaCl₂ and AlCl₃ at Hubbard Brook Experimental Forest (HBEF), New Hampshire...

Author(s):

Richard K. Kobe; Gene E. Likens; Christopher Eagar

Year:

2002

Keywords:

Source:

Canadian Journal of Forest Research. 32: 954-966.

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Total Publications in Treesearch: 53,196

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A simple stochastic weather generator for ecological modeling

Pest and pesticide management on southern forests

Restoration and management of shortleaf pine in pure and mixed stands--science, empirical observation, and the wishful application of generalities

Effects of site preparation on timber and non-timber values of loblolly pine plantations

Public Preferences of Loblolly Pine (Pinus taeda) Stands Generated by Different Site Preparation Methods

Hardwood Chip Export Mills in Arkansas - Implications for Sustainability

Landscape-Scale Research In The Ouachita Mountains Of West-Central Arkansas: General Study Design

A Regional Study on the Influence of Woody and Herbaceous Competition on Early Loblolly Pine Growth

A field guide for the identification of invasive plants in southern forests

The Dynamic General Vegetation Model MC1 over the United States and Canada at a 5-arcminute resolution: model inputs and outputs

Estimating leaf area and above-ground biomass of forest regeneration areas using a corrected normalized difference vegetation index

Computer-based synthetic data to assess the tree delineation algorithm from airborne LiDAR survey

Woody plants and woody plant management: ecology, safety, environmental impact

Restoring the shortleaf pine - bluestem grass ecosystem: An economic evaluation

Proceedings of the Fifth Biennial Southern Silvicultural Research Conference

Crown Health of Reserve Hardwood Trees Following Reproduction Cutting in the Ouachita Mountains

Nutrient loss from disturbed forest watersheds in Oregon's Coast Range

A management guide for invasive plants in southern forests

Uneven-aged silviculture of longleaf pine

Tree seedling growth and mortality responses to manipulations of calcium and aluminum in a northern hardwood forest

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