| Abstract: | Roads encroaching into undeveloped areas generally degrade ecological and watershed conditions and simultaneously provide access to natural resources, land parcels for development, and recreation. A metric of roadless space is needed for monitoring the balance between these ecological costs and societal benefits. We introduce a metric, roadless volume (RV), which is derived from the calculated distance to the nearest road. RV is useful and integrable over scales ranging from local to national. The 2.1 million cubic kilometers of RV in the conterminous United States are distributed with extreme inhomogeneity among its counties. |
| Genre: | Article |
| ProdID: | 70029732 |
| Citation Author: | Watts, R. D.; Compton, R. W.; McCammon, J. H.; Rich, C. L.; Wright, S. M.; Owens, T.; Ouren, D. S. |
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| Citation End Page: | 738 |
| Citation Issue: | 5825 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 3 |
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| Citation Search Results Text: | Roadless space of the conterminous United States; 2007; Article; Journal; Science; Watts, R. D.; Compton, R. W.; McCammon, J. H.; Rich, C. L.; Wright, S. M.; Owens, T.; Ouren, D. S. |
| Citation Start Page: | 736 |
| Citation Volume: | 316 |
| Citation Year: | 2007 |
| Type: | citation/reference |
| Text: | Roadless space of the conterminous United States; 2007; Article; Journal; Science; Watts, R. D.; Compton, R. W.; McCammon, J. H.; Rich, C. L.; Wright, S. M.; Owens, T.; Ouren, D. S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1126/science.1138141 |
| Date Other: | Mon, 1 Jan 2007 00:00 -0600 |
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