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Group: biodiversity_conservation - with tag northeastern_united_states [3 articles]

Recent papers posted by members of the biodiversity_conservation group with tag northeastern_united_states

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	Some consequences of long-term human impacts on ecosystems Revista Chilena De Historia Natural, Vol. 64 (1991), pp. 597-614. by G. E. Likens posted to fif zone world usa united_states time temperate system sulfur states southern regions populations population pollution ozone northern northeastern_united_states new_york new_hampshire management long-term limit increase impacts impact human_population human_impact hubbard_brook hemisphere growth global_scale global_climate_change global_climate forest experimental_forest eutrophication erosion environmental_change ecosystems ecosystem deposition consequences climate_change climate chile atmospheric_deposition acid_rain acid by ForestsInFlux to the group biodiversity_conservation on 2007-05-19 02:04:52 along with 1 group climate_change Abstract Copy My Attachments My Copy Abstract Regional- and global-scale environmental problems potentially can affect North and South Temperate Zone ecosystems differently because of regional differences in population density and growth, and use of resources. Consideration is given to global climate change and various components of global and regional, environmental change, including atmospheric ozone, acid rain, toxic metals and pesticides, eutrophication, and erosion. Acid rain is a serious environmental problem in industrialized and urbanized regions of the Northern Hemisphere. Long-term data from the Hubbard Brook Experimental Forest in ...
	Predicting the effects of climate change on water yield and forest production in the northeastern United States Climate Research, Vol. 5 (1995), pp. 207-222. by J. D. Aber, S. V. Ollinger, C. A. Federer, et al.P. B. Reich, M. L. Goulden, D. W. Kicklighter, J. M. Melillo, R. G. Lathrop posted to fif yield water_yield water_use_efficiency water_use water_stress water_balance_model water_balance water_availability water validation use_efficiency usa united_states transpiration temperature system stands stand responses respiration resolution regional_analysis production primary_production prediction precipitation photosynthesis phenology ocean npp northeastern_united_states nitrogen net_primary_production net_ecosystem_production models modeling model marine long-term increase gis forest foliar_nitrogen exchange elevated_co2 efficiency ecosystems ecosystem deposition co2_concentration co2 climate_change climate carbon_balance carbon canopy biomass balance allocation by ForestsInFlux to the group biodiversity_conservation on 2007-05-19 01:25:05 along with 1 group climate_change Abstract Copy My Attachments My Copy Abstract Rapid and simultaneous changes in temperature, precipitation and the atmospheric concentration of CO2_are predicted to occur over the next century. Simple, well-validated models of ecosystem function are required to predict the effects of these changes. This paper describes an improved version of a forest carbon and water balance model (PnET-II) and the application of the model to predict stand- and regional-level effects of changes in temperature, precipitation and atmospheric CO2. PnET-II is a simple, generalized, monthly time-step model of water and ...
	A strategy for the regional-analysis of the effects of physical and chemical climate-change on biogeochemical cycles in northeastern united-states forests Ecological Modelling, Vol. 67 (1993), pp. 37-47. by J. D. Aber, C. Driscoll, C. A. Federer, et al.R. Lathrop, G. Lovett, J. M. Melillo, P. Steudler, J. Vogelmann posted to fif yield vegetation validation united_states strategies scale regional_scale regional_analysis prediction ocean northeastern_united_states models model marine grassland_biogeochemistry forests forest ecosystems ecosystem deposition cycles cycle climate_change climate biogeochemical_cycles by ForestsInFlux to the group biodiversity_conservation on 2007-05-19 01:25:05 along with 1 group climate_change Abstract Copy My Attachments My Copy Abstract A method is presented for extrapolating the results of site-level ecosystem studies to regional scales. Simple, data-intensive models of ecosystem function are combined with regional data planes describing physical and chemical climate to yield regional predictions. The importance of validating regional predictions with rigorous regional measurements is stressed. Examples of available models and validation data sets are presented ...

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