Treesearch

You may have noticed that, in spite of this being a Caspar Creek conference, I spent a lot of time this morning talking about things other than watershed management research conducted at Caspar Creek. That is because, in spite of my enthusiastic support for a continued active research program at Caspar Creek, I think that it can achieve maximum benefit to society only if other aspects of the environment change. Owing, in part, to my employment since retiring from the Forest Service, I have come to see environmental problems as conflicts between the two value systems I discussed this...

Industrial air pollution has been identified as one of the primary causes of severe damage to forests of central Europe in the past 30 to 40 years. The mountain forest ecosystems have been affected considerably, resulting in extensive areas of severely deteriorated forest stands (e.g., the Krusne Hory of the Czech Republic or the Izerske and Sudety Mountains along the Polish and Czech border). In addition, the increase of motor vehicles in central Europe has caused a higher amount of nitrogen oxide and hydrocarbon emissions. Under particular weather conditions (high solar radiation, high...

Air pollution, bulk deposition and throughfall, soil characteristics, needle chemistry, and forest injury were studied on six permanent plots from the south (Brenna and Salmopol in the Beskidy Mountains) to the north (Gac, the Baltic Sea coastal area) in Poland. The concentrations of sulfur dioxide and nitrogen dioxide were the highest at the Katowice location and the lowest at Gac. Annual mean concentrations of sulfur dioxide at the Brenna, Salmopol, Katowice, and Puszczykowo sites, have exceeded the critical level of 20 mg m-3 proposed by United Nations- Economical Committee for Europe...

State-of-the-art approaches to ecosystem management recognize that different impact mechanisms produce different impacts in different watersheds, so the approaches are designed to provide different management prescriptions in different areas. Despite this level of understanding, there remains a widespread desire to identify a suite of indicators of lotic ecosystem ""health"" that are applicable regionally or nationally, and geomorphological attributes of channel form and character have frequently been selected to fill this need. Such attributes, however, often do not satisfy the minimum...

In January, 1998, the Pacific Southwest Region and Pacific Southwest Research Station of the Forest Service initiated a collaborative effort to incorporate new information into planning future management of Sierra Nevada national forests. The project, known as the Sierra Nevada Framework for Conservation and Collaboration, will incorporate the latest scientific information and broad public and intergovernmental participation in watershed-scale ecosystem planning. The national forest portion of the project, which allows for forest plan amendment, is expected to be completed by mid-summer, 1999

Downstream impacts to aquatic environments and property generally occur as cumulative watershed impacts, which are usually caused by changes in the transport of woody debris, water, and sediment through a watershed. The downstream cumulative impacts that are likely to accrue from implementation of the Sustained Yield Plan / Habitat Conservation Plan for the properties of The Pacific Lumber Company, Scotia Pacific Holding Company, and Salmon Creek Corporation (referred to here as the “SYP/HCP”) are thus assessed by evaluating the plan’s likely effects on woody debris, water, and sediment

The effectiveness of registered and experimental application rates of insecticides esfenvalerate (Asana XL), cyfluthrin (Tempo WP and Tempo 2), and carbaryl (Sevimol and Sevin SL) was assessed for protection of individual high-value lodgepole pines from mountain pine beetles in Montana and ponderosa pines from western pine beetles in Idaho and California. This field test was conducted on the Deerlodge National Forest in Montana, the Boise National Forest in Idaho, and the Eldorado National Forest in California. The boles of the trees were treated with a candidate insecticide treatment to a...