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| 1 | 免耕与常规耕作土壤肥力的分异显示文摘 | 吴珊眉 Groffman P.M.. | 1987 | 南京农业大学学报1987，，2： | 3 |
| 2 | Terrestrial denitrification:challenges and opportunities显示文摘Denitrification is a process of great environmental importance but is difficult to study in terrestrial ecosystems.Methods for quantifying the process are problematic,variability in activity is high,and temporal and spatial scaling challenges are extreme.Available methods are problematic for a variety of reasons;they change substrate concentrations,disturb the physical setting of the process,lack sensitivity or are prohibitively costly in time and expense.Most fundamentally,it is very difficult to quantify the dominant end-product(N_(2))of denitrification given its high background concentration in the atmosphere.Spatial and temporal variation in denitrification is high due to control of the process by multiple factors(oxygen,nitrate,carbon,pH,salinity,temperature etc.)that each vary in time and space.A particular challenge is that small areas(hotspots)and brief periods(hot moments)frequently account for a high percentage of N gas flux activity.These phenomena are challenging to account for in measurement,modeling and scaling efforts.The need for scaling is driven by the fact that there is a need for information on this microscale process at the ecosystem,landscape and regional scales where there are concerns about nitrogen effects on soil fertility,water quality and air quality.In this review,I outline the key challenges involved with denitrification and then describe specific opportunities for making progress on these challenges including advances in measurement methods,new conceptual approaches for addressing hotspot and hot moment dynamics,and new remote sensing and geographic information system–based scaling methods.Analysis of these opportunities suggests that we are poised to make great improvements in our understanding of terrestrial denitrification.These improvements will increase our basic science understanding of a complex biogeochemical process and our ability to manage widespread nitrogen pollution problems. | Peter M Groffman | 2012 | Ecological Processes2012，1，1： | 2 |
| 3 | Nitrate dynamics in riparian forests:microbial studies显示文摘 | Groffman P M Gold A J Simmons R C | 1992 | Journal of Environmental Quality1992，，21： | 1 |
| 4 | Soil nitrogen cycle processes in urban riparian zones显示文摘 | Groffman P M Boulware N J Zipperer W C | 2002 | Envirnnmental Science & Technology2002，36，： | 1 |
| 5 | Methods for measuring denitrification: Diverse approaches to a difficult problem显示文摘 | Groffman P M Altabet M A Bohlke J K | 2006 | Ecological Applications2006，16，6： | 1 |
| 6 | A conceptual assessment of the importance of denitrification as a source of soil nitrogen loss in tropical agro-eco-systems显示文摘 | GROFFMAN PM | 1995 | Fert Res1995，42，： | 1 |
| 7 | Soil moisture variability within remote sensing pixels显示文摘 | CHARPENTIER M A GROFFMAN P M | 1992 | Journal of Geophysical Research1992，97，18： | 1 |
| 8 | Soil freezing alters fine root dynamics in a northern hardwood forest 显示文摘 | Tierney G L Fahey T J Groffman P M | 2001 | Biogeochem- istry2001，56，2： | 1 |
| 9 | Nitrous oxide generation,denitrification,and nitrate removal in a seepage wetland intercepting surface and subsurface flows from a grazed dairy catchment显示文摘 | Zaman M M L Nguyen A J Gold P M Groffman D Q Kellogg R J Wilcock | | 0，，6： | 1 |
| 10 | Snow depth,soil frost and water dynamics in a northern hardwood forest显示文摘 | Hardy J P P M Groffman R D Fitzhugh etal | 2001 | Biogeo-chemistry2001，56，： | 1 |
| 11 | A conceptual assessment of the importance of dcnitrification as a source of soil nitrogen loss in tropical agro - ecosystems显示文摘 | Groffman P M | 1995 | Fert Res1995，42，： | 1 |
| 12 | Soil carbon pools and fluxes in urban ecosystems显示文摘 | Pouyat R Groffman P Yesilonis I D | 2002 | Environmental Pollution2002，116，1： | 1 |
| 13 | Effects of soil freezing disturbance on soil solution nitrogen, phosphorus, and carbon chemistry in a northern hardwood ecosystem 显示文摘 | FITZHUGH R D DRISCOLL C T GROFFMAN P M | 2001 | Biogeochemistry2001，56，： | 1 |
| 14 | Methods for measuring denitrification: diverse approaches to a difficult problem显示文摘 | Groffman P M Altabet M A B?hlke J K | 2006 | Ecological Applications2006，16，6： | 1 |
| 15 | Plant rhizospheric N processes: what we don’t know and why we should care 显示文摘 | Frank DA Groffman PM | 2009 | Ecology2009，90，6： | 1 |
| 16 | Nitrogen fixation in macro-and microphytic patches in the Negev Desert显示文摘 | Zaady E Groffman P Shachak M | 1998 | Soil Biology & Biochemistry1998，30，4： | 1 |
| 17 | Gross nitrogen process rates in temperate forest soils exhibiting symptoms of nitro- gen saturation 显示文摘 | Venterea R T Groffman P M Verchot L V | 2004 | Forest Ecology and Management2004，196，： | 1 |
| 18 | A distinct urban biogeochemistry显示文摘 | Kaye J P Groffman P M Grimm N B Baker L A Pouyat R V | | 0，，04： | 1 |
| 19 | Influence of exot- ic earthworm invasion on soil organic matter, microbial bio- mass and denitrification potential in forest soils of the north- eastern United States显示文摘 | Burtelow A E Bohlen P J Groffman P M | 1998 | Applied Soil Ecology1998，9，13： | 1 |
| 20 | Dynamics of nitrogen and dissolved organic carbon in a forested watershed at the Hubbard Brook experimental forest 显示文摘 | Dittman JA Driscoll CT Groffman PE Fahey TJ | 2007 | Ecology2007，88，： | 1 |
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