Browsing by Author "Luo, Yiqi"
Now showing items 1-19 of 19
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APPLICATION OF ECOSYSTEM ENERGETIC INDICATORS FOR THE VALUATION OF ECOSYSTEM SERVICES AND HEALTH
Brumley, Jessica (2014)Ecosystems services are benefits that humans receive from ecosystem functions. Ecosystem health is a term that is commonly used in the literature to describe the state of an ecosystem. Ecologists and economists have stated ... -
Climate Change Influence on Ecohydrological Processes
Bell, Jesse Eugene (2009)Coupling of the carbon and hydrological cycles, such as the relationship between photosynthesis and transpiration, are essential global and environmental change issues, which are interrelated to future water availability, ... -
DEVELOPMENT OF HIGH-THROUGHPUT EXPERIMENTAL AND COMPUTATIONAL TECHNOLOGIES FOR ANALYZING MICROBIAL FUNCTIONS AND INTERACTIONS IN ENVIRONMENTAL METAGENOMES
Shi, Zhou (2017-05-12)Microorganisms are ubiquitous on earth, and they interact each other to form communities, which play unique and integral roles in various biochemical processes and functions that are of critical importance in global ... -
Drought mildly reduces plant dominance in a temperate prairie ecosystem across years
Castillioni, Karen; Wilcox, Kevin; Jiang, Lifen; Luo, Yiqi; Jung, Chang Gyo; Souza, Lara (2020-06-01)1. Shifts in dominance and species reordering can occur in response to global change. However, it is not clear how altered precipitation and disturbance regimes interact to affect species composition and dominance. 2. We ... -
Herbivory, not soil nitrogen, alters grassland plant community structure and decomposition
Poe, Nicole (2016-12)Human activity has shifted grazing and nitrogen (N) altering plant community structure worldwide. Plant community changes are expected to alter associated ecosystem functions (e.g., plant litter decomposition). Few studies ... -
THE IMPACT OF LONG-TERM ELEVATED ATMOSPHERIC CARBON DIOXIDE ON BELOWGROUND MICROBIAL COMMUNITY AT CONTRAST NITROGEN CONDITIONS
Liu, Feifei (2017-12)Global terrestrial ecosystems are subjected to various climate change factors, including the concurrent elevated CO2 (eCO2) and nitrogen deposition (eN). Despite the increasing appreciation that eCO2 and eN can interactively ... -
IMPROVING GLOBAL CARBON CYCLE MODELS WITH OBSERVATIONS
Hararuk, Oleksandra (2014-05)In the future warming world terrestrial ecosystems may mitigate increasing temperatures by sequestering CO₂ from the atmosphere, or they can intensify future global change, amplifying the rate of CO₂ production in response ... -
OPTIMAL DESIGN OF A CONVECTION-ALLOWING ENSEMBLE FROM A MODEL ERROR PERSPECTIVE
Duda, Jeffrey (2016-05-13)As computer technology continues to improve, resources are becoming increasingly available for running an ensemble of NWP simulations with sufficient resolution that convection parameterization is no longer needed and ... -
Processes regulating progressive nitrogen limitation under elevated carbon dioxide: a meta-analysis
Liang, Junyi; Qi, Xuan; Souza, Lara; Luo, Yiqi (2016-05-10)The nitrogen (N) cycle has the potential to regulate climate change through its influence on carbon (C) sequestration. Although extensive research has explored whether or not progressive N limitation (PNL) occurs under CO2 ... -
QUANTIFYING UNCERTAINTIES IN GLOBAL AND NORTH AMERICAN REGIONAL CLIMATE CHANGE PROJECTIONS USING A MULTI-THOUSAND MEMBER GLOBAL CLIMATE MODEL PERTURBED PHYSICS ENSEMBLE
Rosendahl, Derek (2013-11)Information on the uncertainties in projections of future climate change from global climate models (GCMs) is vital for their effective use across a wide range of applications, including their increasing role in driving ... -
Responses of Belowground Carbon Dynamics to Warming in Southern Great Plains
XU, XIA (2012)Compared with research on aboveground carbon (C) processes in grassland ecosystems, little is known on how belowground C processes would respond to projected global warming. In this dissertation, responses of belowground ... -
RESPONSES OF COMMUNITY STRUCTURE AND ECOSYSTEM FUNCTIONING TO CLIMATE CHANGE – META-ANALYSIS, MODELING, EXPERIMENTAL STUDY AND DATA-MODEL FUSION
shi, zheng (2015)Observations, experimental studies and modeling endeavors all show that global climate change, mainly increased surface air temperature and associated change in precipitation regime, has caused impacts on plant community ... -
RESPONSES OF SOIL MICROBIAL COMMUNITIES TO CLIMATE WARMING
Yuan, Mengting (2017)Strong scientific evidence supports that anthropogenic activities since industrialization have caused instability in earth’s climate, featured by increasing global surface temperature, increasing greenhouse gas concentration ... -
Responses of Terrestrial Biogeochemical Cycles to Global Change – Syntheses and Data-Model Integration
Liang, Junyi (2016-12)Global observations and model simulations show that atmospheric carbon dioxide (CO2) concentrations and surface temperatures have been and will keep increasing. These environmental changes have significant influences on ... -
Some sharp inequalities related to Moser-Tridinger-Onofri inequality
Li, Suyu (2014-05)In this dissertation, we focus on the study of sharp inequalities of Moser- Trudinger-Onofri type. We first establish the analog Bliss and Hardy inequal- ities with sharp constant involving exponential weight function. ... -
The uncoupled surface layer at the Crosstimber Micronet
Haugland, Matthew James (2006)One of the greatest challenges faced by weather forecasters is the large spatial variability of temperature that occurs at small scales, particularly on clear nights with light wind. The physical processes that create this ... -
Transient dynamics of terrestrial carbon storage : mathematical foundation and its applications
Luo, Yiqi; Shi, Zheng; Lu, Xingjie; Xia, Jianyang; Liang, Junyi; Jiang, Jiang; Wang, Ying; Smith, Matthew J.; Jiang, Lifen; Ahlström, Anders; Chen, Benito; Hararuk, Oleksandra; Hastings, Alan; Hoffman, Forrest; Medlyn, Belinda; Niu, Shuli; Rasmussen, Martin; Todd-Brown, Katherine; Wang, Ying-Ping (2017-01-12)Terrestrial ecosystems have absorbed roughly 30 % of anthropogenic CO2 emissions over the past decades, but it is unclear whether this carbon (C) sink will endure into the future. Despite extensive modeling and experimental ... -
UNDERSTANDING ECOSYSTEM CARBON DYNAMICS BY MODELING APPROACHES
Weng, Ensheng (2011)Ecosystem models are a useful tool to explore ecological processes and their responses to climate change. The basic structures of current ecosystem C cycle models are similar and robust, but their uncertainties are high, ... -
THE USE OF REMOTE SENSING AND EDDY COVARIANCE TECHNOLOGIES TO CHARACTERIZE CROPLAND, DROUGHT AND LAND MANAGEMENTS AND THEIR IMPACTS ON ECOSYSTEM DYNAMICS
Zhou, Yuting (2017-05-12)With the increasing population, human needs more food, fresh water, and other ecosystem services, which burdens the agricultural and natural ecosystems. Under the background of climate change, meeting these human needs ...