An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions

doi:10.1016/j.ecolmodel.2011.04.032

	An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions
	Zhang, Yangjian 2; Yang, Jian 3; Shifley, Stephen R.1; Thompson, Frank R.1; He, Hong S.4
刊名	ECOLOGICAL MODELLING
	2011-08-10
卷号	222 期号:15 页码:2623-2630
关键词	Forest Landscape Model Simulation Extent Data Structure Scaling Landis Pro
ISSN号	0304-3800
DOI	10.1016/j.ecolmodel.2011.04.032
英文摘要	Although forest landscape models (FLMs) have benefited greatly from ongoing advances of computer technology and software engineering, computing capacity remains a bottleneck in the design and development of FLMs. Computer memory overhead and run time efficiency are primary limiting factors when applying forest landscape models to simulate large landscapes with fine spatial resolutions and great vegetation detail. We introduce LANDIS PRO 6.0, a landscape model that simulates forest succession and disturbances on a wide range of spatial and temporal scales. LANDIS PRO 6.0 improves on existing forest landscape models with two new data structures and algorithms (hash table and run-length compression). The innovative computer design enables LANDIS PRO 6.0 to simulate very large (>10(8) ha) landscapes with a 30-m spatial resolution, which to our knowledge no other raster forest landscape models can do. We demonstrate model behavior and performance through application to five nested forest landscapes with varying sizes (from 1 million to 100 million 0.09-ha cells) in the southern Missouri Ozarks. The simulation results showed significant and variable effects of changing spatial extent on simulated forest succession patterns. Results highlighted the utility of a model like LANDIS PRO 6.0 that is capable of efficiently simulating large landscapes and scaling up forest landscape processes to a common regional scale of analysis. The programming methodology presented here may significantly advance the development of next generation of forest landscape models. (C) 2011 Elsevier B.V. All rights reserved.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000294105500004
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121825]
专题	中国科学院沈阳应用生态研究所
通讯作者	Yang, Jian
作者单位	1.Univ Missouri, USDA, US Forest Serv, No Res Stn, Columbia, MO 65211 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 4.Univ Missouri, Dept Forestry, Columbia, MO 65211 USA
推荐引用方式 GB/T 7714	Zhang, Yangjian,Yang, Jian,Shifley, Stephen R.,et al. An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions[J]. ECOLOGICAL MODELLING,2011,222(15):2623-2630.
APA	Zhang, Yangjian,Yang, Jian,Shifley, Stephen R.,Thompson, Frank R.,&He, Hong S..(2011).An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions.ECOLOGICAL MODELLING,222(15),2623-2630.
MLA	Zhang, Yangjian,et al."An innovative computer design for modeling forest landscape change in very large spatial extents with fine resolutions".ECOLOGICAL MODELLING 222.15(2011):2623-2630.