{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T21:32:11Z","timestamp":1762032731597,"version":"build-2065373602"},"reference-count":30,"publisher":"SAGE Publications","issue":"1-2","license":[{"start":{"date-parts":[[2001,7,1]],"date-time":"2001-07-01T00:00:00Z","timestamp":993945600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SIMULATION"],"published-print":{"date-parts":[[2001,7]]},"abstract":"<jats:p> Parameter values of a forest landscape model (MO SAIC) are estimated from a terrain sensitive gap model (FACET) over a large number of terrain types. MOSAIC is a semi-Markov model with states defined by cover types. For each terrain type, gap-model output is fed to a program that counts transitions between each pair of states, and estimates the fixed lags and the parameters of the probability density functions of the distributed delays. The gap model and the parameter estimator are executed repetitively for many different steps in the gradients and many ter rain types, taking advantage of a computer cluster running a distributed launching system. The method is illustrated by its application to the H.J. Andrews Forest in the Oregon Cascades. Key transitions in cover type determine the variation of the landscape- model parameters over all terrain types. The method ology presented here provides an automated, consis tent and conceptually clear procedure for scaling up the tree level ecological detail represented by a gap model, to the level ofa patch state-transition model for heterogeneous environmental conditions across the landscape. <\/jats:p>","DOI":"10.1177\/003754970107700104","type":"journal-article","created":{"date-parts":[[2008,3,29]],"date-time":"2008-03-29T17:23:43Z","timestamp":1206811423000},"page":"53-68","source":"Crossref","is-referenced-by-count":10,"title":["Modeling Forest Landscapes: Parameter Estimation from Gap Models over Heterogeneous Terrain"],"prefix":"10.1177","volume":"77","author":[{"given":"Miguel F.","family":"Acevedo","sequence":"first","affiliation":[{"name":"Institute of Applied Sciences and Department of Geography, University of North Texas, Denton, Texas 76203, USA, Centro de Simulaci\u00f3n y Modelos (CESIMO), Facultad de Ingenier\u00eda, Universidad de Los Andes, M\u00e9rida 5101, Venezuela"}]},{"given":"Siva","family":"Pamarti","sequence":"additional","affiliation":[{"name":"Computer Sciences Department, University of North Texas, Denton, Texas, 76203, USA"}]},{"given":"Magdiel","family":"Ablan","sequence":"additional","affiliation":[{"name":"Centro de Simulaci\u00f3n y Modelos (CESIMO), Facultad de Ingenier\u00eda, Universidad de Los Andes, M\u00e9rida 5101, Venezuela"}]},{"given":"Dean L.","family":"Urban","sequence":"additional","affiliation":[{"name":"Nicholas School of the Environment, Duke University, Durham, North Carolina, 27708, USA"}]},{"given":"Armin","family":"Mikler","sequence":"additional","affiliation":[{"name":"Computer Sciences Department, University of North Texas, Denton, Texas, 76203, USA"}]}],"member":"179","published-online":{"date-parts":[[2001,7,1]]},"reference":[{"key":"atypb1","unstructured":"Kohm, K.A. and Franklin, J.F. Creating a forestry for the 21st century. The science of ecosystem management , eds. 475 pp, Island Press, Washington DC, 1997 ."},{"key":"atypb2","unstructured":"Perera, A.H., Euler, D.L. and Thompson, I.D. Ecology of a managed terrestrial landscape: Patterns and processes of forest landscapes in Ontario, eds. 336 pp. University of British Columbia Press and Ontario Ministry of Natural Resources, 2000."},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1007\/BF00137155"},{"key":"atypb4","unstructured":"Mladenoff, D.J. and Baker, W.L. Spatial modeling of forest landscape change: Approaches and applications, eds. 352 pp, Cambridge University Press, 1999."},{"key":"atypb5","unstructured":"Mladenoff, D.J. and He, H.S. \"Design, behavior and application of LANDIS, an object-oriented model of forest landscape disturbance and succession,\" In Spatial Modeling of Forest Landscape Change: Approaches and Applications , eds. Mladenoff, D. J., and Baker, W.L. pp 125-162. Cambridge University Press, 1999."},{"key":"atypb6","unstructured":"Roberts, D.W. and Betz, D.W. \"Simulating landscape vegetation dynamics of Bryce Canyon National Park with the vital attributes\/fuzzy systems model VAFS\/LANDSIM.\" In Spatial Modeling of Forest Landscape Change: Approaches and Applications, eds. Mladenoff, D. J., and Baker, W.L. pp 99-124. Cambridge University Press, 1999."},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.2307\/2269353"},{"key":"atypb8","unstructured":"Acevedo, M.F. , Urban, D.L. and Ablan, M. \"Landscape scale forest dynamics: GIS, gap and transition models.\" In GIS and Environmental Modeling: Progress and Research Issues, eds. Goodchild, M.F. et al. pp 181-185. GIS World Books, Fort Collins, Colorado, 1995."},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3800(94)00208-8"},{"key":"atypb10","doi-asserted-by":"publisher","DOI":"10.1016\/S1364-8152(01)00034-2"},{"key":"atypb11","unstructured":"Urban, D.L., Acevedo, M.F. and Garman, S.L. \"Scaling fine-scale processes to large-scale patterns using models derived from models: Meta-Models.\" In Spatial Modeling of Forest Landscape Change: Approaches and Applications, eds. Mladenoff, D. J., and Baker, W.L. pp 70-98. Cambridge University Press, 1999."},{"key":"atypb12","unstructured":"Pastor, J., et al. \"Markovian analysis of the spatially dependent dynamics of Beaver Ponds.\" In Some Mathematical Questions in Biology: Predicting Spatial Effects in Ecological Systems, ed. Gardner, R.H. pp 5-27. American Mathematical Society, Providence, Rhode Island, 1993."},{"key":"atypb13","doi-asserted-by":"publisher","DOI":"10.2307\/3236173"},{"volume-title":"Forest Ecosystems: Analysis at Multiple Scales. Second Edition","year":"1998","author":"Waring R.H.","key":"atypb14"},{"key":"atypb15","unstructured":"Urban, D.L. and Shugart, H.H. \"Individual-based models of forest succession.\" In Plant Succession: Theory and Prediction, eds. Glenn-Lewin, D.C., Peet, R.K. and Veblen, T.T. pp 249-292. Chapman and Hall, London, 1992."},{"key":"atypb16","doi-asserted-by":"publisher","DOI":"10.1016\/0378-1127(91)90067-6"},{"volume-title":"Proceedings of the 1992 Summer Simulation Conference","author":"Garman, S.L.","key":"atypb17"},{"key":"atypb18","doi-asserted-by":"publisher","DOI":"10.1007\/BF01091618"},{"key":"atypb19","doi-asserted-by":"publisher","DOI":"10.2307\/1941965"},{"key":"atypb20","doi-asserted-by":"publisher","DOI":"10.1175\/1520-0450(1994)033<0140:ASTMFM>2.0.CO;2"},{"key":"atypb21","doi-asserted-by":"publisher","DOI":"10.1139\/x87-081"},{"key":"atypb22","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3800(89)90076-8"},{"key":"atypb23","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3800(92)90015-7"},{"volume-title":"Comparative autoecological characteristics of northwestern tree species - a literature review.\" PNW-87","year":"1979","author":"Minore, D.","key":"atypb24"},{"key":"atypb25","doi-asserted-by":"publisher","DOI":"10.2737\/PNW-GTR-340"},{"volume-title":"\"Asymptotic height-diameter equations for twenty-four tree species in western Oregon","year":"1995","author":"Garman, S.L.","key":"atypb26"},{"volume-title":"Theory of Modeling and Simulation","year":"2000","author":"Zeigler B.P.","key":"atypb27"},{"volume-title":"\"Gigabit ethernet and low-cost supercomputing","year":"1997","author":"Elbert, S.","key":"atypb28"},{"volume-title":"Designing and building parallel programs","year":"1995","author":"Foster, I.","key":"atypb29"},{"volume-title":"The Grid: Blueprint for a new computing infrastructure","year":"1999","author":"Foster, I.","key":"atypb30"}],"container-title":["SIMULATION"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/003754970107700104","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/003754970107700104","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,2]],"date-time":"2025-03-02T19:43:30Z","timestamp":1740944610000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/003754970107700104"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,7]]},"references-count":30,"journal-issue":{"issue":"1-2","published-print":{"date-parts":[[2001,7]]}},"alternative-id":["10.1177\/003754970107700104"],"URL":"https:\/\/doi.org\/10.1177\/003754970107700104","relation":{},"ISSN":["0037-5497","1741-3133"],"issn-type":[{"type":"print","value":"0037-5497"},{"type":"electronic","value":"1741-3133"}],"subject":[],"published":{"date-parts":[[2001,7]]}}}