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| DOI | 10.1088/1748-9326/aba031 |
| Long-term forest health implications of roadlessness | |
| Healey S.P. | |
| 发表日期 | 2020 |
| ISSN | 17489318 |
| 卷号 | 15期号:10 |
| 英文摘要 | The 2001 Forest Service Roadless Rule prohibits roadbuilding in forests across an area equivalent to the combined states of New York and Maine (236 000 km2). There have been recent assertions that roads are needed to prevent fire and to keep forests healthy. Despite twenty years of ongoing forest health monitoring and the unique scope and ecological significance of this network of roadless areas, there has to date been no integrated assessment of the relationship between roads and forest health. Here, this question was addressed by synthesizing different sources of nationally consistent, longitudinal monitoring data. Agency management records show that a lack of roads has not stopped fire prevention measures; fuel management activities in roadless areas have actually been more numerous on a per-square kilometer basis than elsewhere in the National Forest System, although activities in areas with roads cover larger areas. Historical fire maps indicate that forests with and without roads have burned at similar rates since the Rule took effect. The apparent neutrality of roads with respect to fire occurrence may be due to higher rates of human caused ignition near roads offsetting advantages related to more agile positioning of fire-fighting assets. Beyond the fire dimension of forest health, analysis of over 15 000 inventory plots showed that while tree root disease is only weakly correlated with proximity to roads, roads are strongly associated with the spread of invasive plant species in national forests. Non-native plants are twice as common within 152 meters (500 feet) of a road as farther away. Speculation that eliminating road prohibitions would improve forest health is not supported by nearly twenty years of monitoring data. © 2020 Institute of Physics Publishing. All rights reserved. |
| 英文关键词 | Forest fires; Forest health; Protected area management; Roadless network |
| 语种 | 英语 |
| scopus关键词 | Fire extinguishers; Fireproofing; Fires; Health; Highway administration; Monitoring; Roads and streets; Combined state; Fire occurrences; Fire prevention; Forest health monitoring; Fuel management; Integrated assessment; Invasive plants; National forests; Forestry; anthropogenic effect; forest ecosystem; forest health; forest inventory; forest management; health monitoring; integrated approach; Maine; New York; United States |
| 来源期刊 | Environmental Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/153646 |
| 作者单位 | USDA Forest Service, Rocky Mountain Research Station, 507 25th St., Ogden, UT 84401, United States |
| 推荐引用方式 GB/T 7714 | Healey S.P.. Long-term forest health implications of roadlessness[J],2020,15(10). |
| APA | Healey S.P..(2020).Long-term forest health implications of roadlessness.Environmental Research Letters,15(10). |
| MLA | Healey S.P.."Long-term forest health implications of roadlessness".Environmental Research Letters 15.10(2020). |
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