Adaptive management: Promises and pitfalls

Proponents of the scientific adaptive management approach argue that it increases knowledge acquisition rates, enhances information flow among policy actors, and provides opportunities for creating shared understandings. However, evidence from efforts to implement the approach in New Brunswick, British Columbia, Canada, and the Columbia River Basin indicates that these promises have not been met. The data show that scientific adaptive management relies excessively on the use of linear systems models, discounts nonscientific forms of knowledge, and pays inadequate attention to policy processes that promote the development of shared understandings among diverse stakeholders. To be effective, new adaptive management efforts will need to incorporate knowledge from multiple sources, make use of multiple systems models, and support new forms of cooperation among stakeholders.     

南滚河自然保护区的蕨类植物资源及其特点

本文记载了南滚河自然保护区蕨类植物２９科４７属５８种和它们的用途、分布区以及生境因子，并对其地理分布和生态特点进行了分析．     

SOUND POLICY OR SMOKE AND MIRRORS: DOES ECOSYSTEM MANAGEMENT MAKE SENSE?1

ABSTRACT: Protection of ecosystems as entities on the landscape has attracted a wide range of support. Ecosystem-based public policies are claimed to be more effective, efficient, and scientifically sound than other approaches to environmental and natural resource policy. The ecosystem concept was never intended to serve as a public policy guide or to determine landscape units for land management purposes. This paper critically examines the use of the ecosystem concept in public policy and land use management and analyzes the proposed rule to manage the National Forest System according to ecosystem management principles. The concept is found to be unsuitable as a basis for guiding environmental and natural resource public policies in general while the proposed rule to manage the national forests according to ecosystem management principles is shown to be incoherent.     

灾害分类体系研究

灾害分类是灾害学研究的一项重要课题。我国目前尚无统一的灾害分类方法。本文通过对灾害总体性质的研究分析，提出灾型、灾类、灾种三级分类体系。     

灾害统计指标体系及其框架设计

剖析了我国的灾害统计问题，阐述了灾害统计指标设计的原则，首次提出了灾害统计指标体系的宏观框架。     

灾害地图几个问题的初步研究

运用地图学的理论和方法，阐述了灾害地图的性质、内容、功能和作用，介绍了灾害地图的主要类型，探讨了灾害信息图形显示的过程、方法和手段，并提出了开展灾害地图研究的几点建议。     

灾害区划研究的现状,存在问题与发展趋势

着重分析了灾害区划的现状、存在问题和发展趋势，对灾害区划的目标、原理、方法、类型及指标体系进行了深入探讨。     

地貌对矿区环境,灾害的影响与对策

论述了地貌对矿区环境、灾害的产生及发展的影响，并以中国几个矿区的实例论述这一问题，同时，提出一些减缓影响的对策．     

1995年全球自然灾害评析

１９９５年是自６０年代有系统资料以来全球自然灾害经济损失最大的一年。本文根据收集到的信息，对全年的全球自然灾害分布特点及灾情作了综合评析。