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Asymbiotic Nitrogen N2 Fixation And Nitrogen Content Of Bulk Precipitation In Southern California Chaparral
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Book Synopsis Asymbiotic Nitrogen (N2) Fixation and Nitrogen Content of Bulk Precipitation in Southern California Chaparral by : Barbara Ann Ellis
Download or read book Asymbiotic Nitrogen (N2) Fixation and Nitrogen Content of Bulk Precipitation in Southern California Chaparral written by Barbara Ann Ellis and published by . This book was released on 1982 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PSW. written by and published by . This book was released on 1978 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis North American Terrestrial Vegetation by : Michael G. Barbour
Download or read book North American Terrestrial Vegetation written by Michael G. Barbour and published by Cambridge University Press. This book was released on 2000 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition provides extensively expanded coverage of North American vegetation from arctic tundra to tropical forests.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Symposium on Dynamics and Management of Mediterranean-Type Ecosystems by :
Download or read book Proceedings of the Symposium on Dynamics and Management of Mediterranean-Type Ecosystems written by and published by . This book was released on 1982 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1984 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Future of Mono Lake by : California Water Resources Center
Download or read book The Future of Mono Lake written by California Water Resources Center and published by . This book was released on 1975 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliographies on Chaparral and the Fire Ecology of Other Mediterranean Systems by : Jon E. Keeley
Download or read book Bibliographies on Chaparral and the Fire Ecology of Other Mediterranean Systems written by Jon E. Keeley and published by . This book was released on 1988 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1985 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 28 (thesis year 1 983) a total of 10,661 theses titles from 26 Canadian and 197 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 28 reports theses submitted in-1983, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Book Synopsis Effects of Nitrogen Deposition on Nitric Oxide (NO) Efflux of Chaparral Soil in Southern California by : Catherine DeFotis
Download or read book Effects of Nitrogen Deposition on Nitric Oxide (NO) Efflux of Chaparral Soil in Southern California written by Catherine DeFotis and published by . This book was released on 2013 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large amounts of nitrogen (N) are being deposited in urban areas of southern California, which are altering the carbon (C) and N cycling of semi-arid shrubland ecosystems. It is possible that these N inputs are exceeding biotic demand, leading to "N saturation" and increasing the losses of N from leaching and gaseous efflux. N input to soil increases the microbial process of nitrification, which releases nitric oxide (NO) into the atmosphere as a byproduct. The production of NO in chaparral soils is not fully characterized and more experimentation is needed to understand the environmental controls on NO flux from semi-arid soils. Thus, a laboratory incubation experiment was executed to see how NO efflux of chaparral soil varied as function of N addition (0-5 gN/m2) under various soil temperature (0-40°C) and moisture conditions (10.5-72.7%). Based on limited research, I hypothesized that the NO efflux of southern California chaparral soils would i) increase as a function of N addition, ii) present an optimum response as a function of soil moisture, and iii) increase as an exponential function of temperature. Results indicate that NO efflux increased linearly with N addition, supporting the hypothesis that an increase in N availability will increase NO efflux. NO efflux also increased as a function of soil temperature and was well-described using the Arrhenius model, supporting hypothesis 3, and the NO efflux followed an optimum response as a function of soil moisture, supporting hypothesis 2. In general, the greatest NO efflux was observed from soil samples treated with 5 gN/m2 (NH4)2SO4, brought to 25% water-filled pore space (WFPS), and at a temperature of 34.4°C. There was high sensitivity to temperature changes between 0 and 5 gN/m2 (NH4)2SO4 and in soil moistures
Book Synopsis Interaction Between Nitrogen and Carbon Availability on Microbial Activity and Biomass in Chaparral Soils of Southern California by : Kali C. Holt
Download or read book Interaction Between Nitrogen and Carbon Availability on Microbial Activity and Biomass in Chaparral Soils of Southern California written by Kali C. Holt and published by . This book was released on 2016 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large portion of nitrogen deposition on southern California's chaparral and coastal sage scrub (CSS) is due to anthropogenic sources. The implications of increasing soil nitrogen, and the relationship between soil nitrogen and carbon on soil microorganism growth and activity, are not well understood. Possible interactions between N inputs and soil C availability on soil respiration and microbial biomass were assessed in chaparral and CSS plots that have been experimentally treated with N for about 12 years. Soil (microbial + autotrophic) respiration and microbial biomass were measured in four conditions: in plots exposed to added and ambient N, and within these plots, under shrubs and in open spaces, which represent microsites with differing N and C availability. We measured soil respiration and microbial biomass in these conditions every 3 months for a period of 1 year to test the hypothesis that respiration and microbial biomass would (1) increase in plots with higher C and N availability and (2) be higher during the winter and spring because of higher soil water availability. Our results indicate that soil respiration was significantly higher under shrubs but not in plots exposed to added N while microbial biomass was significantly higher in plots exposed to added N but not under shrubs. Soil respiration and microbial biomass were higher in the summer months than during the winter and spring months. These results were observed for both CSS and chaparral, indicating that the effects of long-term N exposure on soil microbial activity and biomass may be general for semiarid shrublands. While speculative, the N-induced increase in microbial biomass, without an increase in activity (respiration), suggests that N exposure has altered the soil microbial community. A change in the soil microbial community has important implications for soil N and C cycling and storage, especially in semi-arid chaparral ecosystems subject to large inputs of atmospheric N.
Book Synopsis Bibliography of Agriculture with Subject Index by :
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1983 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1983 with total page 2330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The International Bibliography of Wildland Fire by : Jason M. Greenlee
Download or read book The International Bibliography of Wildland Fire written by Jason M. Greenlee and published by . This book was released on 1995 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Effects Guide written by and published by . This book was released on 1994 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles of Terrestrial Ecosystem Ecology by : F Stuart Chapin III
Download or read book Principles of Terrestrial Ecosystem Ecology written by F Stuart Chapin III and published by Springer Science & Business Media. This book was released on 2006-04-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features review questions at the end of each chapter; Includes suggestions for recommended reading; Provides a glossary of ecological terms; Has a wide audience as a textbook for advanced undergraduate students, graduate students and as a reference for practicing scientists from a wide array of disciplines
