MAB: Comparison and Management of Montane Ecosystems in the Peninsular Range of the Californias

MAB：加利福尼亚半岛山脉山地生态系统的比较和管理

• 批准号: 9100716
• 负责人: Michael Barbour
• 金额: $ 4.98万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9100716&HistoricalAwards=false
• 关键词: MAB; Comparison; Management; Montane; Ecosystems

This project will continue and expand a comparative study of similar, but geographically isolated, semi-arid montane ecosystems in the Peninsular Ranges within the Californian Biogeographic Province. The Parque Nacional San Pedro Martir (SPM) in Baja California, Mexico, and the Mt. San Jacinto State Park (SJ) in southern California have experienced profoundly different management regimes during the 20th century. SJ has been subject to a fire suppression policy since 1900 and to an exclusion of domestic livestock since 1930; in contrast, wildfires remain uncontrolled in SPM but livestock grazing intensity is extremely high. The project will evaluate the result of the differing management strategies on these two ecosystems. Included will be continuing documentation of past and current human use of the two areas, reconstruction of the probable vegetation patterns of the sites prior to European exploitation (based on diaries from the Spanish mission period of the late 18th century), and perfection of computerized geographic information systems for the two areas. The researchers will characterize elevational, latitudinal and longitudinal gradients in both areas and will utilize satellite remote sensing data to reconstruct regional fire histories. The research will provide for an understanding of the controls of biodiversity and of sustainable development in these important habitats and may be of use in analyzing the probable of global environmental change.

该项目将继续并扩展一项比较研究，对加利福尼亚生物地理省的半岛范围内的类似但地理孤立的半干旱的蒙塔尼生态系统。 位于墨西哥巴哈加利福尼亚州巴哈的圣佩德罗·马蒂尔（SPM）和南加州的圣哈辛托州立公园（SJ）在20世纪经历了深远的管理制度。 自1900年以来，SJ一直遵守火灾政策，自1930年以来被排除在国内牲畜之外；相比之下，SPM中的野火仍然无法控制，但牲畜放牧强度极高。 该项目将评估这两个生态系统的不同管理策略的结果。 包括的将继续记录过去和当前人类对这两个领域的使用，重建欧洲剥削之前可能的植被模式（基于18世纪后期西班牙宣教时期的日记）以及两个领域的计算机地理信息系统的完善。 研究人员将在这两个区域中表征海拔，纬度和纵向梯度，并将利用卫星遥感数据来重建区域火历史。 这项研究将提供对这些重要栖息地中生物多样性和可持续发展的控制的理解，并可能用于分析全球环境变化的可能性。