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1.
Vegetation fires have become an increasing problem in tropical environments as a consequence of socioeconomic pressures and subsequent land-use change. In response, fire management systems are being developed. This study set out to determine the relationships between two aspects of the fire problems in western Indonesia and Malaysia, and two components of the Canadian Forest Fire Weather Index System. The study resulted in a new method for calibrating components of fire danger rating systems based on satellite fire detection (hotspot) data. Once the climate was accounted for, a problematic number of fires were related to high levels of the Fine Fuel Moisture Code. The relationship between climate, Fine Fuel Moisture Code, and hotspot occurrence was used to calibrate Fire Occurrence Potential classes where low accounted for 3% of the fires from 1994 to 2000, moderate accounted for 25%, high 26%, and extreme 38%. Further problems arise when there are large clusters of fires burning that may consume valuable land or produce local smoke pollution. Once the climate was taken into account, the hotspot load (number and size of clusters of hotspots) was related to the Fire Weather Index. The relationship between climate, Fire Weather Index, and hotspot load was used to calibrate Fire Load Potential classes. Low Fire Load Potential conditions (75% of an average year) corresponded with 24% of the hotspot clusters, which had an average size of 30% of the largest cluster. In contrast, extreme Fire Load Potential conditions (1% of an average year) corresponded with 30% of the hotspot clusters, which had an average size of 58% of the maximum. Both Fire Occurrence Potential and Fire Load Potential calibrations were successfully validated with data from 2001. This study showed that when ground measurements are not available, fire statistics derived from satellite fire detection archives can be reliably used for calibration. More importantly, as a result of this work, Malaysia and Indonesia have two new sources of information to initiate fire prevention and suppression activities. 相似文献
2.
Management of public lands occurs today with high levels of scrutiny and controversy. To succeed, managers seek the support,
involvement, and endorsement of the public. This study examines trust as an indicator of managerial success and attempts to
identify and measure the components that most influence it. A review of trust literature yielded 14 attributes that were hypothesized
to contribute to trust, grouped into the three dimensions of Shared Norms and Values, Willingness to Endorse, and Perceived
Efficacy. Operationalizing these attributes and dimensions, a telephone survey was administered to a sample of Montana, USA,
residents living adjacent to the Bitterroot National Forest (n = 1,152). Each of the attributes was measured in the context of federal lands fire and fuel management. Structural equation
modeling showed that all 14 attributes were found to be influential contributors to levels of trust. Results suggest that
if managers are to maintain or increase levels of public trust, they need to consider each of trust’s attributes as they make
social, ecological, and economic resource decisions. 相似文献
3.
Saigal S 《Environmental management》2000,26(3):269-281
/ During the last decade, a major initiative for community involvement in the management of state forest lands was started in India in the form of Joint Forest Management (JFM) programs. Despite the progress and positive impacts, the JFM program is still in the experimental phase. Latent conflicts related to caste, class, and gender issues are threatening JFM institutions at the village level. The Forest Department is also facing a number of internal conflicts as it tries to adjust to its new role under JFM. Some thoughtful and creative attempts have been made to resolve these conflicts. However, a much more concerted effort is required along with creation of suitable mechanisms at local, state, and national levels to discuss and resolve present and future conflicts. 相似文献
4.
Noble BF 《Environmental management》2004,33(3):401-411
Strategic environmental assessment (SEA) is gaining widespread recognition as a tool for integrating environmental considerations in policy, plan, and program development and decision-making. Notwithstanding the potential of SEA to improve higher-order decision processes, there has been very little attention given to integrating SEA with industry planning practices. As a result, the benefits of SEA have yet to be fully realized among industrial proponents. That said, SEA practice is ongoing, albeit informally and often under a different label, and is proving to be a valuable tool for industry planning and decision-making. Based on a case study of the Pasquai-Porcupine forest management plan in Saskatchewan, Canada, this paper illustrates how an integrated approach to SEA can contribute to industry environmental decision-making and can enhance the quality and deliverability of industry plans. 相似文献
5.
Contemporary approaches to natural resources and environmental decision-making typically draw on a “systems” perspective to
assess and improve management strategies. This paper describes the early genesis of the systems analysis approach. It concentrates
on a period between the mid-19th to early 20th centuries. During the early part of this period, George Marsh's Man and Nature and related works laid out an approach to problem-solving that recognized the relationship among physically disperse elements
in the environment, the need to balance benefits against costs, the potential for using quantitative modeling to understand
management options, and the importance of integrating human and natural components into solutions. In the early 20th century,
the Miami Conservancy District project brought this approach to fruition with its use of complex simulation and optimization
modeling, detailed cost–benefit analysis, and its linking of economics, engineering, science, and law into a far-reaching
solution to a complex water resources problem. The objective of this paper is to describe the early development and application
of this conceptual approach to problem-solving. An examination of the origins of natural resources systems analysis can broaden
one's perspective of the contemporary field to understand its roots as a philosophy for environmental problem-solving. 相似文献