The Importance of Scale in Using Hierarchical Census Data to Identify the Wildland-Urban Interface
文献类型：期刊论文
| 作者 | Zhang, YJ ; Wimberly, MC |
| 刊名 | SOUTHERN JOURNAL OF APPLIED FORESTRY
 |
| 出版日期 | 2007 |
| 卷号 | 31期号:3页码:138-147 |
| 通讯作者 | Zhang, YJ |
| 英文摘要 | Census data in combination with GIS are increasingly being used to analyze urban expansion and develop models for identifying landscape change in the urban fringe. Census data are aggregated along the large-to-small-unit gradient of county, tract, census block group (CBG), and census block. The multiple scale availability often confounds the selection of an appropriate level of data in research pertinent to using census data. This study addressed the modifiable areal unit problem of census data through comparing spatial pattern and area of wildland-urban interface (WUI) determined at different levels of census aggregation (county, census tract, CBG, and census block). Total WUI area in each single year decreased along the shrinking census unit gradient from county to census block. Area converted from wildland to WUI between 1990 and 2000 decreased along the census gradient of the tract, 013, census block, county level. The number of WUI patches decreased, and area of WUI patches increased along the decreasing census gradient of county, tract, CBG, block. In contrast to 60% of WUI blocks falling inside WUI CBGs or tracts, more than 80% of WUI tracts fell inside WUI counties, and 76.8% of Will CBGs fell inside WUI tracts. WUI at the block level showed a different spatial pattern from those at the tract and CBG levels in that it represented more spatial detail. County-level data tended to overestimate Will area while underestimating area converted to Will. The study concluded that coarse sale data, such as those at the county level, were suitable for detecting a regional pattern. Fine-scale data, such as those at the census block level, need to be used in addressing issues at a landscape pattern. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-11-22 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/27604]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Zhang, YJ,Wimberly, MC. The Importance of Scale in Using Hierarchical Census Data to Identify the Wildland-Urban Interface[J]. SOUTHERN JOURNAL OF APPLIED FORESTRY,2007,31(3):138-147. |
| APA | Zhang, YJ,&Wimberly, MC.(2007).The Importance of Scale in Using Hierarchical Census Data to Identify the Wildland-Urban Interface.SOUTHERN JOURNAL OF APPLIED FORESTRY,31(3),138-147. |
| MLA | Zhang, YJ,et al."The Importance of Scale in Using Hierarchical Census Data to Identify the Wildland-Urban Interface".SOUTHERN JOURNAL OF APPLIED FORESTRY 31.3(2007):138-147. |
入库方式： OAI收割
来源：地理科学与资源研究所
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