Interaction of Soil Nitrogen and Water Cycles Control Trace N-Gas Production
{'Code': '08010208', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
{'SignBlockName': 'Crystal Blackshear', 'PO_EMAI': None, 'PO_PHON': None}
The factors controlling temporal variations of nitric                      oxide (NO) and nitrous oxide (N20) production in several                        systems with distinct wet and dry seasons will be investigated.                 More specifically, the researchers will examine: 1) biotic and                  abiotic processes of inorganic-N and N0 production in dry soil;                 2) the origin of trace N-gas flushes when dry soils are wetted;                 3) dynamics of nitrifying populations under changing soil                       moisture and substrate availability; 4) origin and control of                   N0 production by nitrifiers and denitrifiers;  and 5) factors                   affecting escape of N0 and N20 from soil.                                                                                                                       These studies will be carried out on soils taken from three                     west-coast ecosystems - the oak-grasslands and coniferous                       forest ecosystems of California and the deciduous forests of                    Mexico.  State-of-the-art techniques for studying nitrogen                      cycling in soils and microbial populations will be used.  These                 include 15N isotope dilution techniques in the nitrogen cycling                 work and fluorescent antibody and micro-autoradiography                         techniques in the microbial population work.  Various aspects                   of the process-level research will ultimately be integrated                     through modeling.                                                                                                                                               The significance of this research is that it will help us to                    understand how changes in soil moisture content affect the                      production of two important trace gases, N0 and N20.  Nitric                    oxide is of interest because of its involvement in tropospheric                 reactions which, among other things, create ozone, a major                      pollutant in the lower atmosphere.  Nitrous oxide is of                         interest because it is a highly efficient greenhouse gas and so                 is involved in global climate change.                                                                                                                           Dr. Firestone has a very good record of productivity working in                 the complex area of soil-N dynamics.  The institutional support                 available to her is superior.
{'FirstName': 'Mary', 'LastName': 'Firestone', 'PI_MID_INIT': 'K', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Mary K Firestone', 'EmailAddress': 'mkfstone@berkeley.edu', 'NSF_ID': '000364630', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of California-Berkeley', 'CityName': 'BERKELEY', 'ZipCode': '947101749', 'PhoneNumber': '5106433891', 'StreetAddress': '1608 4TH ST STE 201', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '12', 'CONGRESS_DISTRICT_ORG': 'CA12', 'ORG_UEI_NUM': 'GS3YEVSS12N6', 'ORG_LGL_BUS_NAME': 'REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1128', 'Text': 'Population & Community Ecology'}, {'Code': '9145', 'Text': 'SPECIAL PROGRAMS-RESERVE'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8808187.xml'}