搜索结果: 1-15 共查到“理学 Amazonia”相关记录17条 . 查询时间(0.052 秒)
From Alaska To Amazonia:First Global Maps Of Traits That Drive Vegetation Growth（图）
Alaska Amazonia:First Global Maps Drive Vegetation Growth
2017/12/19
Based on measurements of 45,000 individual plants from 3,680 species, and using high-tech statistical mapping protocols, the team created global maps of plant traits including leaf nitrogen concentrat...
Universidade de Sao Paulo Centro de Energia Nuclear na Agricultura: Soil microbiota related to carbon, nitrogen and greenhouse gas cycles across different land uses in Southwestern Amazonia
Biological sciences Earth sciences Soil microbiota Amazonia Biogeochemical cycles Gene abundance Land use change
2015/1/28
Sustainability is one of the biggest goals of humankind in the new millennium. An increasing global demand on agricultural products stimulates agricultural expansion in Brazil, especially in the South...
Methanogenic pathway, 13 C isotope fractionation, and archaeal community composition in the sediment of two clear-water lakes of Amazonia
isotope fractionation archaeal community composition
2014/4/16
We studied the methanogenic pathway and archaeal community composition in the sediment of two clearwater lakes, Lake Batata and Lake Mussura, in Amazonia. We measured CH4 production and d13
C of CO2,...
Regional N2O fluxes in Amazonia derived from aircraft vertical profiles
Regional N2O fluxes Amazonia aircraft vertical profiles
2009/12/3
Nitrous oxide (N2O) is the third most important anthropogenic greenhouse gas. Globally, the main sources of N2O are nitrification and denitrification in soils. About two thirds of the soil emissions o...
Rapid formation of isoprene photo-oxidation products observed in Amazonia
Rapid formation isoprene photo-oxidation products Amazonia
2009/11/9
Isoprene represents the single most important reactive hydrocarbon for atmospheric chemistry in the tropical atmosphere. It plays a central role in global and regional atmospheric chemistry and possib...
Cloud condensation nuclei in pristine tropical rainforest air of Amazonia: size-resolved measurements and modeling of atmospheric aerosol composition and CCN activity
Cloud condensation nuclei pristine tropical rainforest air Amazonia atmospheric aerosol composition CCN activity
2009/10/13
Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate. We have measured and characterized CCN at water vapor supersaturations ...
Influence of landscape heterogeneity on spatial patterns of wood productivity,wood specific density and above ground biomass in Amazonia
landscape heterogeneity spatial patterns wood productivity wood specific density
2010/1/21
Long-term studies using the RAINFOR network of forest plots have generated significant insights into the spatial and temporal dynamics of forest carbon cycling in Amazonia. In this work, we map and ex...
After trees die:quantities and determinants of necromass across Amazonia
trees die quantities determinants necromass across Amazonia
2010/1/20
The Amazon basin, one of the most substantial biomass carbon pools on earth, is characterised by strong macroecological gradients in biomass, mortality rates, and wood density from west to east. These...
A comparative study of the soil solution chemistry of two Amazonian forest soils (Central Amazonia, Brazil)
soil water chemical composition forest soils
2009/6/8
Analyses of the chemical composition of rapidly percolating soil water were used to study the genesis of a shallow podzol in a Campinarana forest and a clayey ferralsol from a typical rainforest loca...
Soil water storage and groundwater behaviour in a catenary sequence beneath forest in central Amazonia：II. Floodplain water table behaviour and implications for streamflow generation
Soil water storage groundwater central Amazonia streamflow generation
2009/6/8
Valley floor groundwater level data collected during the ABRACOS project (Gash et al. 1996), and published streamflow data from small forested catchments in geomorphologically similar areas nearby hav...
Soil water storage and groundwater behaviour in a catenary sequence beneath forest in central Amazonia：I. Comparisons between plateau, slope and valley floor
Soil water storage groundwater central Amazonia plateau valley floor
2009/6/8
Soil water storage was monitored in three landscape elements in the forest (plateau, slope and valley floor) over a 3 year period to identify differences in sub-surface hydrological response. Under th...
Throughfall and temporal trends of rainfall redistribution in an open tropical rainforest, south-western Amazonia (Rondônia, Brazil)
rainfall redistribution open tropical rainforest south-western Amazonia
2009/5/13
Throughfall volumes and incident rainfall were measured between 23 August and 2 December 2004 as well as from 6 January to 15 April 2005 for individual rain events of differing intensities and magnitu...
Airborne measurements of trace gas and aerosol particle emissions from biomass burning in Amazonia
Airborne measurements trace gas aerosol particle emissions biomass burning Amazonia
2009/1/14
As part of the LBA-SMOCC (Large-Scale Biosphere-Atmosphere Experiment in Amazonia - Smoke, Aerosols, Clouds, Rainfall, and Climate) 2002 campaign, we studied the emission of carbon monoxide (CO), carb...
Size distribution and hygroscopic properties of aerosol particles from dry-season biomass burning in Amazonia
Size distribution hygroscopic properties aerosol particles dry-season biomass Amazonia
2008/12/31
Aerosol particle number size distributions and hygroscopic properties were measured at a pasture site in the southwestern Amazon region (Rondonia). The measurements were performed 11 September-14 Nove...
Seasonal variation of ozone deposition to a tropical rain forest in southwest Amazonia
ozone deposition tropical rain forest southwest Amazonia
2008/12/23
Within the project EUropean Studies on Trace gases and Atmospheric CHemistry as a contribution to Large-scale Biosphere-atmosphere experiment in Amazonia (LBA-EUSTACH), we performed tower-based eddy c...