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Release of Nitrogen by Burning Light Forest Fuels
D. S. DeBell,C. W. Ralston +1 more
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This article is published in Soil Science Society of America Journal.The article was published on 1970-11-01. It has received 103 citations till now. The article focuses on the topics: Organic matter.read more
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Modification of the soil environment by vegetation fires, with particular reference to nitrogen transformations: A review
TL;DR: In this article, the authors studied the influence of vegetation burning (ash and heat) on the soil environment and their relation to nutrient availability, and the relationship between ash deposition and soil fertility.
ReportDOI
Wildland fire in ecosystems: effects of fire on soils and water
TL;DR: In this paper, the effects of fire on soil and water are reviewed, and a state-of-the-art review about the physical, chemical, and biological effects needed to successfully conduct ecosystem management is presented.
Journal ArticleDOI
The effect of fire on nutrients in a chaparral ecosystem
Leonard F. DeBano,C. E. Conrad +1 more
TL;DR: The distribution of nutrients in plants, litter, and soil were studied before and after a prescribed burn in southern California chaparral and measurable losses of only 2 nutrients occurred.
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Impacts of forest management on northern forest soils
TL;DR: In this article, the effects of forest management on northern soil environments are characteristic of other latitudes, as well as other regions of the world, such as North America and Europe.
ReportDOI
Oak Regeneration: Serious Problems Practical Recommendations (Symposium Proceedings)
David L. Loftis,Charles E. McGee +1 more
Abstract: An Historical Perspective of Oak Regeneration F. Bryan Clark, USDA Foresf Service, Retired, Anmndale, VA 22003 Concerns about oak management in the middle ages led to forest ordinances in France designed to ensure oak establishment. Oak was an early export from the American colonies because it was scarce and expensive in England. Probably the first government sponsored forest research in the United States was attempts in Florida in the early 1800’s to establish live oak (Quercus virginiana) for shipbuilding. With the advent of technical forestry in this country there were references in early papers and textbooks to oak regeneration and the shelterwood method. This interest was primarily for academic study and followed European descriptions, but some of the earliest oak regeneration research related to concerns about areas without advance reproduction. In the late 1930’s understory oaks were described in relation to past treatment. In the 1950’s and 1960’s researchers and ecologists began to quantify oak reproduction under various stand conditions on different sites. Mostly they found lots of understory oaks, but there were exceptions. Researchers thought these exceptions might be important and started to look more carefully at the response of oaks to harvest cutting. Even-aged cuttings quickly showed that on good oak sites without substantial numbers of vigorous advance oak the stands of the future would be quite different. The new stands generally contained less oak. At the same time observers noted that oak types were changing in some areas. More recently, comparisons of repeat forest surveys show a decline of oak types in some states. Increased prices for oak timber suggest that accelerated harvesting is adding to the ecological changes taking place. We find ourselves with a growing knowledge about oak ecology and silviculture but without a convincing history of being able to prescribe with certainty ways to increase the amount of oak in new stands. Considering the tremendous value of oak forests there is an urgency to improve oak management and to give high priority to long-term research. INTRODUCTION Is oak regeneration really a problem? Experts believe that on many sites now occupied by oak, regeneration will become increasingly difficult. How can that be? Oaks are the most prevalent forest types in the United States and dominate much of the East’s landscape. Volume growth exceeds commercial removals. It is even more contusing to remember that the present stands were born out of very harsh efforts to either convert forest lands to agriculture through tire and grazing or to