Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10661-004-4024-4 |
An ecosystem approach to combat desertification on the Colorado Plateau | |
Clements, A | |
通讯作者 | Clements, A |
会议名称 | 3rd International Symposium on Alternative Ways to Combat Desertification, Connecting Community Action with Science and Common Sense |
会议日期 | APR 07-10, 2002 |
会议地点 | Cape Town, SOUTH AFRICA |
英文摘要 | Desertification of shrub and grassland into pinyon-juniper woodland is occurring over much of the Colorado Plateau in the southwestern United States. As trees invade, they out-compete shrubs and grasses, increasing erosion rates and reducing infiltration of moisture into the soil. This has caused habitat problems for wildlife, and reduced forage for livestock. These impacts also affect the human communities that rely on ranching and tourism related to hunting. Past land use and management practices including heavy livestock grazing, fire suppression and introduction of exotic annual plants are believed to have led to current conditions. The Montrose office of the Bureau of Land Management has implemented an ecosystem-based program to reverse the desertification process on public land. The program is centered on detailed landscape objectives describing the desired vegetation mosaic on 360000 ha of public land. The objectives outline proportions of plant seral stages and arrays of patch sizes for each planning unit. These objectives are based on priority management issues and the need to replicate a natural vegetation mosaic. Where the existing mosaic does not meet objectives, mechanical vegetation treatments and prescribed fire are used to create early and mid-seral patches on the ground. This restored vegetation pattern and type should be sustained over time through a natural fire regime and improved livestock management. Because many uncertainties exist, an adaptive management process is being used that allows mosaic objectives to be changed or processes modified where monitoring or scientific research indicate a need. |
英文关键词 | desertification invasive vegetation prescribed fire regime regeneration of indigenous vegetation seedbanks |
来源出版物 | ENVIRONMENTAL MONITORING AND ASSESSMENT |
ISSN | 0167-6369 |
出版年 | 2004 |
卷号 | 99 |
期号 | 1-3 |
页码 | 233-243 |
出版者 | KLUWER ACADEMIC PUBL |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | CPCI-S ; SCI-E |
WOS记录号 | WOS:000225974200019 |
WOS关键词 | PINYON-JUNIPER WOODLANDS ; NEW-MEXICO ; OVERSTORY |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/294858 |
作者单位 | (1)US Bur Land Management, BLM Uncompahgre Field Off, Montrose, CO 81401 USA |
推荐引用方式 GB/T 7714 | Clements, A. An ecosystem approach to combat desertification on the Colorado Plateau[C]:KLUWER ACADEMIC PUBL,2004:233-243. |
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