Estimating source-sink distributions and fluxes of reactive nitrogen and sulfur within a mixed forest canopy [0.03%]
混合森林冠层中反应性氮和硫的源汇分布及通量估算
Zhiyong Wu,John T Walker,A Christopher Oishi et al.
Zhiyong Wu et al.
The vertical source-sink distribution of air pollutants within and above forested canopies is necessary for describing the biological, physical, and chemical processes influencing the soil-vegetation-atmosphere exchange. This study implemen...
Sandeep Thayamkottu,T Luke Smallman,Jaan Pärn et al.
Sandeep Thayamkottu et al.
Boreal peatlands store vast amounts of soil organic carbon (C) owing to the imbalance between productivity and decay rates. In the recent decades, this carbon stock has been exposed to a warming climate. During the past decade alone, the Ar...
Spatial heterogeneity of ammonia fluxes in a deciduous forest and adjacent grassland [0.03%]
落叶林和邻近草地中的氨通量的空间异质性
Xuehui Guo,Da Pan,Ryan W Daly et al.
Xuehui Guo et al.
Gas-phase ammonia (NH3), emitted primarily from agriculture, contributes significantly to reactive nitrogen (Nr) deposition. Excess deposition of Nr to the environment causes acidification, eutrophication, and loss of biodiversity. The exch...
Characterizing patterns of seasonal drought stress for use in common bean breeding in East Africa under present and future climates [0.03%]
表征东非季节性干旱应力的模式以用于现势和未来气候条件下的大豆育种工作中应力的量化
Prakash K Jha,Steve Beebe,Patricia Alvarez-Toro et al.
Prakash K Jha et al.
Common bean (Phaseolus vulgaris L.) is the second most important source of dietary protein and the third most important source of calories in Africa, especially for the poor. In East Africa, drought is an important constraint to bean produc...
Hyperspectral response of agronomic variables to background optical variability: Results of a numerical experiment [0.03%]
农业变量对背景光学变化的高光谱响应：数值实验的结果
Lin Gao,Roshanak Darvishzadeh,Ben Somers et al.
Lin Gao et al.
Understanding how biophysical and biochemical variables contribute to the spectral characteristics of vegetation canopies is critical for their monitoring. Quantifying these contributions, however, remains difficult due to extraneous factor...
Branko Šikoparija,Predrag Matavulj,Gordan Mimić et al.
Branko Šikoparija et al.
Considerable amounts of starch granules can be present in the atmosphere from both natural and anthropogenic sources. The aim of this study is to investigate the variability and potential origin of starch granules in ambient air recorded at...
Effects of disturbance patterns and deadwood on the microclimate in European beech forests [0.03%]
干扰格局和枯死木对欧洲山毛榉林微气候的影响
Dominik Thom,Andreas Sommerfeld,Julius Sebald et al.
Dominik Thom et al.
More frequent and severe disturbances increasingly open the forest canopy and initiate tree regeneration. Simultaneously, increasing weather extremes, such as drought and heat, are threatening species adapted to cool and moist climate. The ...
Post-disturbance recovery of forest carbon in a temperate forest landscape under climate change [0.03%]
气候变化下的温带森林景观中干扰后的森林碳恢复
Laura Dobor,Tomáš Hlásny,Werner Rammer et al.
Laura Dobor et al.
Disturbances alter composition, structure, and functioning of forest ecosystems, and their legacies persist for decades to centuries. We investigated how temperate forest landscapes may recover their carbon (C) after severe wind and bark be...
Biases in open-path carbon dioxide flux measurements: Roles of instrument surface heat exchange and analyzer temperature sensitivity [0.03%]
开放路径二氧化碳通量测量偏差:仪器表面热交换和分析器温度敏感性的作用
M Julian Deventer,Tyler Roman,Ivan Bogoev et al.
M Julian Deventer et al.
Eddy covariance (EC) measurements of ecosystem-atmosphere carbon dioxide (CO2) exchange provide the most direct assessment of the terrestrial carbon cycle. Measurement biases for open-path (OP) CO2 concentration and flux measurements have b...
Error characterization of methane fluxes and budgets derived from a long-term comparison of open- and closed-path eddy covariance systems [0.03%]
长期开路和闭路涡动相关系统比较用于甲烷通量和预算误差表征
M Julian Deventer,Timothy J Griffis,D Tyler Roman et al.
M Julian Deventer et al.
Wetlands represent the dominant natural source of methane (CH4) to the atmosphere. Thus, substantial effort has been spent examining the CH4 budgets of global wetlands via continuous ecosystem-scale measurements using the eddy covariance (E...