Validating landtype associations using forest inventory and analysis data and neutral landscape models
文献类型：期刊论文
| 作者 | He, Hong S.1,2; White, Shawn K.2; Nigh, Timothy A.3 |
| 刊名 | LANDSCAPE ECOLOGY
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 25期号:5页码:761-774 |
| 关键词 | Landtype Association Lta Validation Lta Delineation Fia Neutral Landscape Model Missouri |
| ISSN号 | 0921-2973 |
| DOI | 10.1007/s10980-009-9446-5 |
| 英文摘要 | One of the principal uses of land type associations (LTAs) is to provide information on ecological patterns and potentials useful for identifying alternatives and setting vegetation management objectives at landscape and watershed scales. Since LTA identification and delineation is an iterative process involving subjective decisions, it is imperative that LTAs accurately capture measurable distinctions in vegetation. In this study, we provided a framework for validating LTAs in Missouri's. We chose a suite of variables from the Forest Inventory and Analysis database of the US Forest Service, an independent source, to capture a wide range of characteristics of the forest ecosystem. These variables included forest type, species composition, species diversity, species richness, site index, density of all trees 1 inch dbh and greater, and density of all trees 5 inch dbh and greater. First, the appropriateness of grouping LTAs into broader LTA types (identifications) was examined, and results suggest that species composition is more similar within LTA Type than among LTA Types. Second, a neutral model approach was used to evaluate the variables used in the study, and it was shown that forest type and the two density measures validated LTA adjacencies no more often than randomly delineated LTAs. Therefore, these three variables were removed from the analysis. Finally, comparisons of adjacent LTAs using statistical analysis of remaining variables resulted in the validation of 480 of the 623 compared adjacencies, showing a significant difference in at least one variable. Results of this study provide a quantitative measure of Missouri LTAs and reveal LTAs that have less distinction and need further refinements. |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000276609800008 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/121415]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | He, Hong S. |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Univ Missouri, Dept Forestry, Columbia, MO 65211 USA 3.Missouri Dept Conservat, Columbia, MO 65211 USA |
| 推荐引用方式 GB/T 7714 | He, Hong S.,White, Shawn K.,Nigh, Timothy A.. Validating landtype associations using forest inventory and analysis data and neutral landscape models[J]. LANDSCAPE ECOLOGY,2010,25(5):761-774. |
| APA | He, Hong S.,White, Shawn K.,&Nigh, Timothy A..(2010).Validating landtype associations using forest inventory and analysis data and neutral landscape models.LANDSCAPE ECOLOGY,25(5),761-774. |
| MLA | He, Hong S.,et al."Validating landtype associations using forest inventory and analysis data and neutral landscape models".LANDSCAPE ECOLOGY 25.5(2010):761-774. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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