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| 1 | Analysis of conifer on forest regeneration using landsat thematics mapper data显示文摘 | Fiorella M Ripple W J | 1993 | Photocrammetric Engi- neering & Remote Sensing1993，59，9： | 1 |
| 2 | Evaluation of approaches for forest covers estimation in the Pacific North west USA,using remote sensing显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，4： | 1 |
| 3 | Historic spatial pattern of old-growth forests in western Oregon 显示文摘 | Ripple W J | 1994 | Journal of Forestry1994，92，11： | 1 |
| 4 | Evaluation of approaches for forest cover estimation in the Pacific Northwest,USA,using remote sensing显示文摘 | BOYD D S FOODY G M RIPPLE W J | 2002 | Applied Geography2002，22，： | 1 |
| 5 | Status and ecological effects of the world’s largest carnivores显示文摘 | RIPPLE W J ESTES J A BESCHTA R L | 2014 | Science2014，343，6167： | 1 |
| 6 | Evaluation of Approaches for Forest Cover Estimation in the Pacific Northwest, USA, Using Remote Sensing显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，4： | 1 |
| 7 | Measuring forest landscape pattern in the cascade range of Oregon, USA显示文摘 | Ripple W J Bradshaw G A Spies T A 1991 | 1991 | Biological Conservation1991，57，： | 1 |
| 8 | Evaluation of approaches for forest cover estimation in the Pacific Northwest, USA, using re- mote sensing显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，： | 1 |
| 9 | Potential vegetation indices for determining global forest cover显示文摘 | BoydD S Ripple W J | 1997 | International Journal of Remote Sensing1997，18，6： | 1 |
| 10 | Evaluation of approaches for forest cover estimation in the Pacific Northwest, USA, using remote sensing 显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，： | 1 |
| 11 | Central nervous system aspergillosis:a case report and literature review显示文摘 | FASCIANO J W RIPPLE M G | 1999 | Hospital Physician1999，35，： | 1 |
| 12 | Old-growth and mature forests near spotted owl nests in western Oregon显示文摘 | RIPPLE W J JOHNSON D H HERSHEY K T | 1991 | J Wildl Manage1991，，55： | 1 |
| 13 | Foreword, Special Issue: Geographic Information Systems显示文摘 | Merchant J W Ripple W J | 1996 | Photogrammetric Engineering & Rem ote Sensing1996，62，11： | 1 |
| 14 | Evaluation of approaches for forest cover estimation in the Pacific Northwest, USA, using remote sensing 显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，： | 1 |
| 15 | Evaluation of approaches for forest cover estimation in the Pacific Northwest, USA, using remotesensing 显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，4： | 1 |
| 16 | Fine-scale predation risk on elk after wolf reintroduction in Yellowstone National Park,USA显示文摘 | Halofsky J S Ripple W J | | 0，，04： | 1 |
| 17 | Restoring landscapes of fear with wolves in the Scottish Highlands显示文摘 | Manning A D Gordon I J Ripple W J | | 0，，10： | 1 |
| 18 | Evaluation of approaches for forest cover estimation in the Pacific Northwest,USA,using remote sensing显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，4： | 1 |
| 19 | Trophic cascades in Yellowstone:The first 15 years after wolf reintroduction显示文摘 | Ripple W J Beschta R L | | 0，，01： | 1 |
| 20 | Evaluation of approaches for forest cover estimation in the pacific northwest, USA, U sing remote sensing显示文摘 | Boyd D S Foody G M Ripple W J | 2002 | Applied Geography2002，22，： | 1 |
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