Large nitrous oxide emissions from arable soils after crop harvests prior to sowing [0.03%]
作物收获时向耕地排放大量的一氧化二氮气体在播种前
Regine Maier,Lukas Hörtnagl,Nina Buchmann
Regine Maier
Global agriculture is the largest anthropogenic source for nitrous oxide (N2O) emissions. During crop rotations, periods with arable soils without crops, thereafter called "bare soils" are often impossible to avoid after the crop is harvest...
Multi-experiment assessment of soil nitrous oxide emissions in sugarcane [0.03%]
甘蔗田土壤氧化亚氮排放的多试验评估研究
M V Galdos,J R Soares,K S Lourenço et al.
M V Galdos et al.
Soil nitrous oxide (N2O) fluxes comprise a significant part of the greenhouse gas emissions of agricultural products but are spatially and temporally variable, due to complex interactions between climate, soil and management variables. This...
N2O emission factors for cattle urine: effect of patch characteristics and environmental drivers [0.03%]
草地牛尿氮排放影响因素及环境驱动机制研究
Lena Barczyk,Kate Kuntu-Blankson,Pierluigi Calanca et al.
Lena Barczyk et al.
Urine patches from grazing cattle are hotspots of nitrous oxide (N2O) emissions. The default IPCC emission factor for urine patches (EFurine) is 0.77% for wet climates and 0.32% for dry climates. However, literature reports a considerable r...
Nitrogen translocation by Highland cattle grazing in Alnus viridis-encroached pastures [0.03%]
高山牛在柳兰侵入草地中的氮转移作用
Mia Svensk,Marco Pittarello,Pierre Mariotte et al.
Mia Svensk et al.
During the last decades, Alnus viridis has expanded over former montane pastures and meadows, due to land use and abandonment. This nitrogen-fixing woody species has triggered negative agro-environmental impacts, such as nitrogen (N) leachi...
Jacqueline Berendt,Gerald Jurasinski,Nicole Wrage-Mönnig
Jacqueline Berendt
In recent years, many peatlands in Europe have been rewetted for nature conservation and global warming mitigation. However, the effects on emissions of the greenhouse gas nitrous oxide (N2O) have been found to be highly variable and drivin...
Biomass partitioning and nutrient fluxes in Silphium perfoliatum and silage maize cropping systems [0.03%]
穿叶败酱和青贮玉米种植系统中的生物量分配和养分通量
Thorsten Ruf,Christoph Emmerling
Thorsten Ruf
Abstract: Cup plant cultivation as feedstock for anaerobic digestion has become an emerging topic in European Agriculture. Although there is a gap in methane yields between cup plant and the benchmark crop silage maize, c...
Liming impacts barley yield over a wide concentration range of soil exchangeable cations [0.03%]
土壤交换性阳离子广浓度范围内对大麦产量的影响
J E Holland,P J White,J-N Thauvin et al.
J E Holland et al.
Liming has widespread and significant impacts on soil processes and crop responses. The aim of this study was to describe the relationships between exchangeable cation concentrations in soil and the relative yield of spring barley. The hypo...
Nitrogen inputs best predict farm field nitrate leaching in the Willamette Valley, Oregon [0.03%]
氮输入最能预测俄勒冈威拉米特谷农场硝酸盐淋溶状况
J E Compton,S L Pearlstein,L Erban et al.
J E Compton et al.
Nitrate leaching is an important yet difficult to manage contribution to groundwater and surface water contamination in agricultural areas. We examine 14 farm fields over a four year period (2014-2017) in the southern Willamette Valley, pro...
Leaching losses from Kenyan maize cropland receiving different rates of nitrogen fertilizer [0.03%]
不同氮肥用量下肯尼亚玉米田的淋溶损失
T A Russo,K Tully,C Palm et al.
T A Russo et al.
Meeting food security requirements in sub-Saharan Africa (SSA) will require increasing fertilizer use to improve crop yields, however excess fertilization can cause environmental and public health problems in surface and groundwater. Determ...
Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning [0.03%]
非洲撒哈拉以南地区土壤养分地图：利用机器学习方法评估250米空间分辨率下的土壤养分含量
Tomislav Hengl,Johan G B Leenaars,Keith D Shepherd et al.
Tomislav Hengl et al.
Spatial predictions of soil macro and micro-nutrient content across Sub-Saharan Africa at 250 m spatial resolution and for 0-30 cm depth interval are presented. Predictions were produced for 15 target nutrients: organic carbon (C) and total...