Decadal Shift in Nitrogen Inputs and Fluxes Across the Contiguous United States: 2002-2012 [0.03%]
美国本土地区氮素通量二十年代际变化（2002—2012年）
Robert D Sabo,Christopher M Clark,Jesse Bash et al.
Robert D Sabo et al.
The effectiveness of policies and management actions in reducing the release of excess nitrogen (N) to the environment is best assessed if N fluxes across air, land, and water are regularly quantified at relevant scales. Here we compiled 20...
Evidence for Wildland Fire Smoke Transport of Microbes from Terrestrial Sources to the Atmosphere and Back [0.03%]
来自陆地的野火烟雾微生物传播至大气后再降落的证据
Krista Bonfantine,David C Vuono,Brent C Christner et al.
Krista Bonfantine et al.
Smoke from wildland fires contains viable microbes and cell concentrations higher than typical ambient air, yet little is known about the sources and sinks of smoke-borne microorganisms. Data from molecular-based surveys suggest smoke-borne...
Nitrate loads from land to stream are balanced by in-stream nitrate uptake across seasons in a dryland stream network [0.03%]
旱地溪流网络中陆地到溪流的硝酸盐负荷在各个季节都通过溪流内部的硝酸盐吸收达到平衡
Amalia M Handler,Ashley M Helton,Nancy B Grimm
Amalia M Handler
Exploring nitrogen dynamics in stream networks is critical for understanding how these systems attenuate nutrient pollution while maintaining ecological productivity. We investigated Oak Creek, a dryland watershed in central Arizona, USA, t...
Organic Matter Composition as a Driver of Soil Bacterial Responses to Pig Carcass Decomposition in a Canadian Continental Climate [0.03%]
加拿大大陆气候下土壤有机质组成驱动猪尸体分解过程中土壤细菌响应模式
E L Pecsi,S Forbes,F Guillemette
E L Pecsi
Organic by-products are released into the surrounding soil during the terrestrial decomposition of animal remains. The affected area, known as the Cadaver Decomposition Island (CDI), can undergo biochemical changes that contribute to landsc...
Climate and Ecosystem Factors Mediate Soil Freeze-Thaw Cycles at the Continental Scale [0.03%]
气候变化和生态系统因素介导的大陆规模土壤冻融循环
Erin C Rooney,Angela R Possinger
Erin C Rooney
Freeze-thaw cycles (FTC) alter soil function through changes to physical organization of the soil matrix and biogeochemical processes. Understanding how dynamic climate and soil properties influence FTC may enable better prediction of ecosy...
Resolving Heterogeneity in CO2 Uptake Potential in the Greenland Coastal Ocean [0.03%]
格陵兰沿海海洋中CO₂吸收潜能异质性的形成原因
Henry C Henson,Mikael Sejr,Lorenz Meire et al.
Henry C Henson et al.
The oceans play a pivotal role in mitigating climate change by sequestering approximately 25% of annually emitted carbon dioxide (CO2). High-latitude oceans, especially the Arctic continental shelves, emerge as crucial CO2 sinks due to thei...
Shorter Ice Duration and Changing Phenology Influence Under-Ice Lake Temperature Dynamics [0.03%]
冰期缩短和物候变化影响湖冰下水温动态
Isabella A Oleksy,David C Richardson
Isabella A Oleksy
Temperate lakes worldwide are losing ice cover but the implications for under-ice thermal dynamics are poorly constrained. Using a 92-year record of ice phenology from a temperate and historically dimictic lake, we examined trends, variabil...
Comparing Drivers of Spatial Variability in U.S. Lake and Stream Phosphorus Concentrations [0.03%]
美国湖泊和河流中磷浓度空间变异性的驱动因素比较
Robert D Sabo,Brian Pickard,Jiajia Lin et al.
Robert D Sabo et al.
Decision makers need to know the drivers of surface water phosphorus (P) concentrations, the environmental factors that mediate P loading in freshwater systems, and where pollution sources and mediating factors are co-located to inform wate...
Recovery of Soils From Acidic Deposition May Exacerbate Nitrogen Export From Forested Watersheds [0.03%]
酸沉降导致的土壤复苏可能加剧森林流域氮输出问题
Gregory B Lawrence,Sara E Scanga,Robert D Sabo
Gregory B Lawrence
Effects of ambient decreases in N deposition on forest N cycling remain unclear as soils recover from acidic deposition. To investigate, repeated soil sampling data were related to deposition, vegetation, and stream data, for 2000-2015 in N...
Ankur R Desai,Bailey A Murphy,Susanne Wiesner et al.
Ankur R Desai et al.
Long-running eddy covariance flux towers provide insights into how the terrestrial carbon cycle operates over multiple timescales. Here, we evaluated variation in net ecosystem exchange (NEE) of carbon dioxide (CO2) across the Chequamegon E...