搜索结果: 1-12 共查到“理学 Steppe”相关记录12条 . 查询时间(0.015 秒)
Increased temperature and precipitation interact to affect root production, mortality, and turnover in a temperate steppe: implications for ecosystem C cycling
precipitation root mortality root production root turnover temperate grassland warming
2015/2/5
Fine root production and turnover play important roles in regulating carbon (C) cycling in terrestrial ecosystems. In order to examine effects of climate change on root production and turnover, a fiel...
Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe
grazing intensity N mineralization plant community soil fauna trophic groups
2015/2/4
Large grazing herbivores have been reported to determine the structure and function of grassland ecosystems. However, the ecological linkages between structure and functioning components have yet been...
Complementarity in water sources among dominant species in typical steppe ecosystems of Inner Mongolia, China
Water source Hydrogen stable isotope Soil moisture Winter half-year precipitation Plant water potential Functional traits
2015/2/4
Water is the most important factor controlling plant growth, primary production, and ecosystem stability in arid and semi-arid grasslands. Here we conducted a 2-year field study to explore the contrib...
Effects of diurnal warming on soil respiration are not equal to the summed effects of day and night warming in a temperate steppe
diurnal warming soil respiration summed effects day and night warming temperate steppe
2010/1/20
The magnitude of daily minimum temperature increase is greater than that of daily maximum temperature increase under climate warming. This study was conducted to examine whether changes in soil respir...
Seasonal and diurnal variations in moisture, heat and CO2 fluxes over a typical steppe prairie in Inner Mongolia, China
moisture CO2 fluxes heat
2009/7/22
In order to examine energy partitioning and CO2 exchange over a steppe prairie in Inner Mongolia, China, fluxes of moisture, heat and CO2 in the surface layer from June 2007 through June 2008 were cal...
Large regional-scale variation in C3/C4 distribution pattern of Inner Mongolia steppe is revealed by grazer wool carbon isotope composition
regional-scale variation C3/C4 distribution pattern Inner Mongolia steppe isotope composition
2010/1/20
This work explored the spatial variation of C3/C4 distribution in the Inner Mongolia, P. R. China, steppe by geostatistical analysis of carbon isotope data of vegetation and sheep wool. Standing commu...
Effect of water addition and nitrogen fertilization on the fluxes of CH4, CO2, NOx, and N2O following five years of elevated CO2 in the Colorado Shortgrass Steppe
nitrogen fertilization CH4 CO2 NOx N2O Colorado Shortgrass Steppe
2009/3/11
An open-top-chamber (OTC) CO2 enrichment (~720 mmol mol-1) study was conducted in the Colorado shortgrass steppe from April 1997 through October 2001. Aboveground plant biomass increased under elevate...
Centennial black carbon turnover observed in a Russian steppe soil
Centennial black carbon turnover Russian steppe soil
2010/1/18
Black carbon (BC), from incomplete combustion of fuels and biomass, has been considered highly recalcitrant and a substantial sink for carbon dioxide. Recent studies have shown that BC can be degraded...
S17-4 The Qinghai-Tibet Plateau: center of evolution for snow sparrows (Montifringilla s. str.) and mountain-steppe sparrows (Onychostruthus, Pyrgilauda)
mountain-steppe sparrows center of evolution for snow sparrows
2007/12/17
S17-4 The Qinghai-Tibet Plateau: center of evolution for snow sparrows (Montifringilla s. str.) and mountain-steppe sparrows (Onychostruthus, Pyrgilauda)
作者：Axel GEBAUER, Siegfried ECK, Martin KAIS...
According to the field investigation, observation by an electronic microscope and x-ray identification and chemical analysis, desert-steppe migration in the Loess Plateau at about 450 kaBP...
Carbon balance assessment of a natural steppe of southern Siberia by multiple constraint approach
Carbon balance assessment natural steppe southern Siberia multiple constraint approach
2010/1/14
Steppe ecosystems represent an interesting case in which the assessment of carbon balance may be performed through a cross validation of the eddy covariance measurements against ecological inventory e...
On the Distribution and Morphology of the Steppe Viper, Vipera eriwanensis (REUSS, 1933), from Gavur Mountain (Gümüşhane)
Vipera eriwanensis distribution morphology northeastern Turkey
2010/3/29
Vipera eriwanensis (Reuss, 1933), known only from the localities of the eastern Aras River in Turkey, was morphologically examined and compared with the related species on the basis of one additional ...