欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
位置：立项数据库 > 立项详情页
中文摘要：
围绕地气碳氮交换及其与气候的相互作用长期开展多学科交叉研究，取得重要成果①对地气碳氮气体交换，实现从单点人工观测到多点联网自动观测、从单一气体成分到多种碳氮气体成分全自动连续同步观测的技术创新；②采用自主创新技术开展长期野外观测实验研究，明确了中国农田的显著碳汇功能，发现放牧抑制寒温带半干旱草原氧化亚氮排放；③研制了植被有机碳排放-气候双向耦合模式和地气系统碳氮循环模式，为编制国家温室气体排放清单提供了先进方法；④模拟研究揭示了地气碳氮交换的若干重要特征，以及温室气体排放和大气氮沉降增加进一步改变地气碳氮交换（正反馈于大气温室效应）的重要机制。群体未来的工作将推动物理气候-碳氮生物地球化学过程耦合研究的发展，为应对气候变化的重大决策与行动提供科技支撑。获国家科技进步二等奖；近5年发表SCI(E)论文156篇，SCI(E)他引1241次，3人获国家杰出青年基金，2人入选国家级百千万人才。
英文摘要：
Terrestrial C/N exchange；climate change；measurement technique；model simulation；feedback
结论摘要：
研制了反硝化直接测定系统GFSC-SMOS和生态系统气体通量观测系统AMEG；明确了？季节性干旱期的湿润过程可使温带林地土壤的温室气体净排放增强，？温带半干旱草地的生长季降水减少和放牧强度增加或高寒草甸的鼠害加剧都会致使温室气体净排放增强，甚至造成草地温室气体的汇源功能逆转，？稻田施尿素对CH4排放的抑制效应强于对N2O排放的促进效应，？石灰性土壤旱田的N2O直接排放系数比全国和全球旱地平均值低将近50%，且这类农田减氮施肥对夏季丰雨年的N2O减排无效，？氮肥激发的N2O排放与其氮肥利用效率存在消长关系；阐明了华北地区大气活性氮沉降总量及其气体干沉降、湿沉降和粒子干沉降组成；改进了自然湿地CH4排放模型CH4MOD，使其具备模拟自然湿地CH4排放的能力，改进了DNDC，使其具备模拟小流域径流氮流失的能力，建立了区域畜牧业CH4排放模型和GEOS-CHEM模拟中国区域生物源挥发性有机化合物（BVOCs）排放的植被参数化方案，实现了IAP9L-AGCM模型中的海盐气溶胶-气候双向耦合；揭示出气候变化可致使农作物（水稻、小麦和玉米）增产、稻田CH4排放系数增加、东北三江平原过去50年的CH4排放减少和中国农田土壤有机碳（SOC）储量变化，但其贡献远小于品种更新、管理方式改变、湿地垦殖等人为活动的直接效应；认识到气候变化可促进BVOCs排放，进而影响大气臭氧的SOA浓度；明确？中国区域BVOCs排放的空间格局取决于植被类型分布，季节格局取决于气象条件和植物生长，？大气CH4浓度呈现夏季最高、春季最低、东部高、西部低的时空分布格局，且与东部地区畜牧业与稻田CH4排放关系密切，？东亚弱夏季风有利于增加中国东部地区气溶胶浓度，反之则增加其大气臭氧。
成果综合统计
期刊论文
会议论文
专利
获奖
著作
期刊论文
Characterization of the size-segregated water-soluble inorganic ions in the Jing-Jin-Ji urban agglom
Time-series analysis of mortality effects from airborne particulate matter size fractions in Beijing
Observational Studies and a Statistical Early Warning of Surface Ozone Pollution in Tangshan, the La
Grazing effects on seasonal dynamics and interannual variabilities of spectral reflectance in semi-a
Contribution of climate change and rising CO2 to terrestrial carbon balance in East Asia: A multi-mo
The climatological characteristics of photosynthetically active radiation in arid and semi-arid regi
Role of sea surface temperature responses in simulation of the climatic effect of mineral dust aeros
Simulated Spatial Distribution and Seasonal Variation of Atmospheric Methane over China: Contributio
Comparison between eddy covariance and automatic chamber techniques for measuring net ecosystem exch
Assessing biogeochemical effects and best management practice for a wheat-maize cropping system usin
Impact of Direct Radiative Forcing of Anthropogenic Aerosols on Diurnal Temperature Range in January
The empirical relationship between the PM2.5 concentration and aerosol optical depth over the backgr
Annual emissions of nitrous oxide and nitric oxide from a wheat-maize cropping system on a silt loam
Modeling N2O emissions from steppe in Inner Mongolia, China, with consideration of spring thaw and g
Annual methane uptake by temperate semiarid steppes as regulated by stocking rates, aboveground plan
Effects of irrigation, fertilization and crop straw management on nitrous oxide and nitric oxide emi
Effect of ammonium-based, non-sulfate fertilizers on CH4 emissions from a paddy field with a typical
Responses of N2O and CH4 fluxes to fertilizer nitrogen addition rates in an irrigated wheat-maize cr
Seasonal and Interannual Variations of Evapotranspiration and Energy Exchange over Different Land Su
Spatial distribution and temporal variations of atmospheric sulfur deposition in Northern China: ins
Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultu
Projected changes in soil organic carbon stocks of China's croplands under different agricultural ma
Changes in rice yields in China since 1980 associated with cultivar improvement, climate and crop ma
Global warming over the period 1961–2008 did not increase high-temperature stress but did reduce low
In situ measurement of PM1 organic aerosol in Beijing winter using a high-resolution aerosol mass sp
Empirical models for estimating daily maximum, minimum and mean air temperatures with MODIS land sur
Impacts of the East Asian summer monsoon on interannual variations of summertime surface-layer ozone
Estimating the impacts of warming trends on wheat and maize in China from 1980 to 2008 based on coun
Climate warming over the past three decades has shortened rice growth duration in China and cultivar
Effects of nitrate concentration on the denitrification potential of a calcic cambisol and its fract
Comparison between static chamber and tunable diode laser-based eddy covariance techniques for measu
Size-resolved aerosol trace elements at a rural mountainous site in Northern China: Importance of re
Nitrous oxide and methane fluxes from a rice–wheat crop rotation under wheat residue incorporation a
Seasonal variation and source apportionment of organic and inorganic compounds in PM2.5 and PM10 par
Chemical composition and size distribution of airborne particulate matters in Beijing during the 200
Effects of nitrification inhibitors (DCD and DMPP) on nitrous oxide emission, crop yield and nitroge
he effect of planting density on carbon dioxide, methane and nitrous oxide emissions from a cold pad
Automated online measurement of N2, N2O, NO, CO2, and CH4 emissions based on a gas-flow-soil-core te
Assessment of heavy metal contamination of dustfall in northern China from integrated chemical and m
Modeling nitrogen loading in a small watershed in southwest China using a DNDC model with hydrologic
Characteristics of momentum and heat transfer over semiarid grasslands with different grazing intens
Effect of grazing intensity on evapotranspiration in the semiarid grasslands of Inner Mongolia, Chin
Effects of different gap filling methods and land surface energy balance closure on annual net ecosy
Climatic responses to the shortwave and longwave direct radiative effects of sea salt aerosol in pre
A Bayesian assessment of the current irrigation water supplies capacity under projected droughts for
Nitrous oxide emissions and nitrate leaching from a rain-fed wheat-maize rotation in the Sichuan Bas
An evidence of aerosol indirect effect on stratus cloud from the integrated ground-based measurement
Modeling impacts of fertilization alternatives on nitrous oxide and nitric oxide emissions from conv
Impacts of aerosols on surface-layer ozone concentrations in China through heterogeneous reactions a
Small-scale spatial variations of gaseous air pollutants - A comparison of path-integrated and in si
The vertical distribution and their relationship of dissolved organic carbon and exchangeable metals
Positive relationship between liquid cloud droplet effective radius and aerosol optical depth over E
N balance and cycling of Inner Mongolia typical steppe: a comprehensive case study of grazing effect
Oxygen and substrate availability interactively control the temperature sensitivity of CO2 and N2O e
Applicability of the soil gradient method for estimating soil-atmosphere CO2, CH4 and N2O fluxes for
Spatially explicit regionalization of airborne flux measurements using environmental response functi
Characteristics of multiple-year nitrous oxide emissions from conventional vegetable fields in south
Increases in aerosol concentrations over eastern China due to the decadal-scale weakening of the Eas
Two-year simultaneous records of N2O and NO fluxes from a farmed cropland in the northern China plai
Simulation of the direct radiative effect of mineral dust aerosol on the climate at the Last Glacial
会议论文
Impacts of the East Asian monsoon on seasonal, interannual, and decadal variations of aerosols in Ch
Effects of grassland degradation and reclamation on CH4, CO2 and N2O fluxes in alpine meadows of the
Impacts of reductions in emissions of multipollutants over 2005-2030 on regional air quality and cli
专利
获奖
相关项目
郑循华的项目