Analysis Of Drought-Flood Abrupt Alternation Events And Their Impacts In Kenya,
2024
University of Nebraska-Lincoln
Analysis Of Drought-Flood Abrupt Alternation Events And Their Impacts In Kenya, Betty Makena
School of Natural Resources: Dissertations, Theses, and Student Research
Drought-Flood Abrupt Alternation (DFAA) is a compound disaster event that refers to the abrupt shift of extreme drought events to extreme floods resulting in exacerbated impacts on already vulnerable communities and hindering their coping abilities. This study aimed to analyze drought-flood abrupt alternation events and their impacts in Kenya. The first chapter aimed to understand historical drought events in the Greater Horn of Africa and their impacts, while drawing comparisons with the recent 2020-2022 drought period, referred to as the ‘triple dip La Niña’. Datasets used in this study include the Climate Hazards Group InfraRed Precipitation with Station (CHIRPS), Normalized …
Remotely Sensed Early Warning Of Algal Blooms In An Eastern Nebraska Reservoir: A Comparison Of Temporal And Spatial Indicators,
2024
University of Nebraska-Lincoln
Remotely Sensed Early Warning Of Algal Blooms In An Eastern Nebraska Reservoir: A Comparison Of Temporal And Spatial Indicators, Mercy Kipenda
School of Natural Resources: Dissertations, Theses, and Student Research
Cyanobacterial harmful algal blooms (CyanoHABs) detrimentally affect human, animal, and ecosystem health. Remotely sensed early warning systems for cyanoHABs in inland lakes could contribute to more proactive water quality monitoring and help mitigate negative impacts. Advances in freely available remote sensing imagery, with finer spatial, temporal, and spectral resolutions, present new opportunities for the development and comparative analysis of methods to detect sudden deterioration in lake water quality. In this thesis, I compared and tested for temporal and spatial early warning signals of cyanoHABs in field-based and remotely sensed datasets from 2019 to 2023 in Pawnee Lake in southeast Nebraska, …
Impacts Of Invasive Carp And Their Population Dynamics On Fish Communities In The Missouri River,
2024
University of Nebraska-Lincoln
Impacts Of Invasive Carp And Their Population Dynamics On Fish Communities In The Missouri River, Joshua F. Kocik
School of Natural Resources: Dissertations, Theses, and Student Research
Invasive Carp species: Silver Carp Hypophthalmichthys molitrix, Bighead Carp Hypophthalmichthys nobilis, Grass Carp Ctenopharyngodon idella, and Black Carp Mylopharyngodon piceus have both potential and realized abilities to negatively impact native species. Specifically, Bighead Carp and Silver Carp as filter feeders have been theorized to be detrimental not only to adult filter-feeding species, but to many fish which rely on plankton and algae in their early-life stages. The impact of Invasive Carp on the overall fish community remains underexplored. The fish communities below Gavins Point Dam (Invasive Carp present) and Fort Randall Dam (Invasive Carp absent) afford the …
Spatiotemporal Plasticity In Reproductive Readiness And Recruitment Of Ichthyoplankton Of Invasive Silver Carp Along A Western Invasion Front,
2024
University of Nebraska-Lincoln
Spatiotemporal Plasticity In Reproductive Readiness And Recruitment Of Ichthyoplankton Of Invasive Silver Carp Along A Western Invasion Front, Jessi L. Urichich
School of Natural Resources: Dissertations, Theses, and Student Research
Individuals of invasive species at the edge of their invasion distribution may exhibit enhanced reproductive capacity and phenotypic plasticity leading to accelerated range expansion. Environmental conditions in highly fluctuating environments at distribution edges may either promote or hinder such reproductive readiness and phenotypic plasticity. Dynamic habitat conditions and periodic disturbances experienced in prairie streams, such as drought (e.g., low-flow, high water temperatures), may potentially reduce suitable spawning environments and ichthyoplankton recruitment of invasive Silver Carp, potentially slowing range expansion or enabling management strategies that reduce abundance in the absence of a reproducing population. Female Silver Carp batch fecundity, Gonadosomatic Index …
Assessing, Restoring, And Centering Social–Ecological Relationships For Advancing Social–Ecological Resilience In The Northern Great Plains Grasslands,
2024
University of Nebraska-Lincoln
Assessing, Restoring, And Centering Social–Ecological Relationships For Advancing Social–Ecological Resilience In The Northern Great Plains Grasslands, Katia Pilar Carranza Bernal
School of Natural Resources: Dissertations, Theses, and Student Research
The Northern Great Plains grasslands are social-ecological systems that were shaped by evolutionary and Indigenous social-ecological relationships. European colonization disrupted many of these interactions, including the coupling of fire and grazing, and degraded social-ecological resilience, shifting these grasslands to a new state. For those reasons, my research focused on assessing, restoring, and centering evolutionary and Indigenous social-ecological relationships for advancing social-ecological resilience in the Northern Great Plains grasslands. I first performed a study in the Nebraska Sandhillls assessing the potential of patch-burn grazing to support grassland resilience by comparing its effects to those of rotational grazing. Through vegetation and bird …
The Gavel And The Camera: Environmental Law And Photojournalism's Relationship To Appalachian Identity,
2024
University of Tennessee at Chattanooga
The Gavel And The Camera: Environmental Law And Photojournalism's Relationship To Appalachian Identity, Emily S. Patton
Honors Theses
Both the federal government and photojournalism have played a substantial role in the “othering” of Appalachia while simultaneously attempting to save it. Examining both institutions demonstrates the exploitative processes that alter the perception of rural communities and their surrounding environment. Stacey Kranitz’s archival exhibit, As It Was Give(n) To Me, internalizes this precarious role of the camera in a region heavily journalized. By inhabiting the area for years, establishing close relationships, and researching the documented history of Appalachia, Kranitz’s work becomes her livelihood in the dissolution of profession vs. personal. She is critical of past projects whose objective portrayal of …
Caught On Camera: Evaluating Wood Duck (Aix Sponsa) Cavity Occurrence And Trapping Efficiency,
2024
Clemson University
Caught On Camera: Evaluating Wood Duck (Aix Sponsa) Cavity Occurrence And Trapping Efficiency, Cindy L. Von Haugg
All Theses
Wood ducks (Aix sponsa) garner significant ecologic and economic importance as the second most harvested waterfowl species in two of the four migratory flyways in North America, but the accuracy of population monitoring, relative to other duck species, is stifled by the wood duck’s secretive nature and nesting habitat. As an alternate, population models would improve current assessments, but more data on the demographic vital rates of cavity-nesting wood ducks is needed. I aimed to help bridge this knowledge gap by developing a method to increase data collection efficiency, and with it, accomplish two objectives: 1) Calculate the relative abundance …
Transferred Benefits In Inter-Community Beach Nourishment: A Field Study On Efficiency,
2024
Montclair State University
Transferred Benefits In Inter-Community Beach Nourishment: A Field Study On Efficiency, Owen Thomas
Theses, Dissertations and Culminating Projects
To combat the effects of relative sea level rise and the natural erosional processes affecting the sandy, diffusive beaches of New Jersey, most communities utilize beach nourishment to stabilize their beaches. Beach nourishment, the practice of artificially widening the beach berm with sand from other areas, not only stabilizes beaches but also protects oceanfront homes from storm surges, while adding recreational space and tourism value. These benefits are reflected in increased property values, most notably in oceanfront properties. The diffusive nature of these beaches, however, means that individual nourishment events are inherently shared with neighboring communities as sand is readily …
Learning From “Nature-Based Solutions” To Promote Optimal Management Of Integrated Ecological Conservation And Restoration In Qinghai-Xizang Plateau,
2024
Key Laboratory of Land Consolidation and Rehabilitation, Land Consolidation and Rehabilitation Center/ Land Science and Technology Innovation Center, Ministry of Natural Resources, Beijing 100035, China
Learning From “Nature-Based Solutions” To Promote Optimal Management Of Integrated Ecological Conservation And Restoration In Qinghai-Xizang Plateau, Jun Wang, Bojie Fu, Xiao Zhang, Yanxu Liu, Wenwu Zhao
Bulletin of Chinese Academy of Sciences (Chinese Version)
The Qinghai-Xizang Plateau plays an important role as an ecological security barrier for China and the world, where the ecological environment has generally improved in recent years. Nevertheless, the Qinghai-Xizang Plateau still faces management challenges in dealing with the three relationships, namely, key problems and coordinated governance, natural recovery and artificial restoration, and high-quality development and high-level protection. This study proposes the application of “Nature-based Solutions” for adaptive management, including the implementation of ecological protection and restoration planning based on the “three-scale framework”, the ecological protection and restoration projects adaptation management under climate change and human disturbance based on quantitative …
Green Transition Situations And Development Suggestions For Upstream Petroleum Industry,
2024
Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China; China National Oil and Gas Exploration and Development Company Ltd., Beijing 100034, Chin
Green Transition Situations And Development Suggestions For Upstream Petroleum Industry, Lirong Dou, Feng Gao, Yun Peng, Xi Wang, Liang Xiong
Bulletin of Chinese Academy of Sciences (Chinese Version)
In the current global energy transition process, which is accelerating overall but with further uncertainty, the global oil and gas industry is showing four major trends: a shift in business structure from oil and gas dominance to multi-energy complementarity, a shift in market structure from globalization to differentiation between the Eastern and Western hemispheres, a shift in policy orientation from radical transition to orderly development, and an expansion of technological innovation from traditional to emerging fields. Governments of various countries and international oil companies have made adjustments to policies, strategic goals, implementation paths, and other aspects based on their own …
Analysis Of Demand And Recycling Potential Of Lithium, Cobalt, And Nickel Under Energy Transition Emdash From Perspective Of Electric Vehicles,
2024
School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100190, China
Analysis Of Demand And Recycling Potential Of Lithium, Cobalt, And Nickel Under Energy Transition Emdash From Perspective Of Electric Vehicles, Xiong Ying, Shouyang Wang, Yuyao Yang
Bulletin of Chinese Academy of Sciences (Chinese Version)
With the rapid growth of demand for lithium, cobalt, and nickel, China, the United States, and the European Union have classified them as critical minerals. This study investigates the rise of China’s and the global electric vehicle industry in relation to the demand for lithium, cobalt, and nickel, forecasts the potential for recycling these metals, and evaluates the challenges to resource security of these metals faced by China. The findings underscore the necessity of enhancing international collaboration in mineral extraction abroad and enhancing capabilities to safeguard overseas assets and equity. The study advocates for expediting the establishment of an electric …
Changshu National Agro-Ecosystem Observation And Research Station, Chinese Academy Of Sciences,
2024
Chinese Academy of Sciences
Changshu National Agro-Ecosystem Observation And Research Station, Chinese Academy Of Sciences, Institute Of Soil Science, Chinese Academy Of Sciences
Bulletin of Chinese Academy of Sciences (Chinese Version)
No abstract provided.
Fundamental Theory And Technological Innovation In Soil Carbon And Nitrogen Cycling: Promoting Sustainable Development Of Agriculture,
2024
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China; Changshu National Agro-Ecosystem Observation and Research Station, Chinese Academy of Sciences, Suzhou 215555, China; University of Chinese Academy of Sciences, Nanjing, Nanjing 211135, China
Fundamental Theory And Technological Innovation In Soil Carbon And Nitrogen Cycling: Promoting Sustainable Development Of Agriculture, Xu Zhao, Longlong Xia, Yongqiu Xia, Xiaoyuan Yan
Bulletin of Chinese Academy of Sciences (Chinese Version)
The Changshu National Agro-Ecosystem Observation and Research Station (hereinafter referred to as Changshu Station) was officially established in 1987. Changshu Station is the only multidisciplinary comprehensive observation, research, and demonstration station within Chinese Academy of Sciences in the Yangtze River Delta region, focusing on researches about agricultural production, resources utilization, and environmental protection. Since its establishment, Changshu Station is the pioneer in conducting systematic observational research on soil nitrogen cycling, soil carbon sequestration, greenhouse gas (GHG) mitigation, and agricultural non-point source pollution. Over the past five years, Changshu Station has focused on three major scientific issues facing green and sustainable …
“Lucid Waters And Lush Mountains Are Invaluable Assets”: Pathways And Prospects For Ecological Gdp In The Yellow River Basin,
2024
State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
“Lucid Waters And Lush Mountains Are Invaluable Assets”: Pathways And Prospects For Ecological Gdp In The Yellow River Basin, Guangqian Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
This study, following Xi Jinping’s ecological civilization philosophy and the two mountains concept, explores pathways for realizing ecological value and mechanisms for ecological GDP in the Yellow River Basin. The research demonstrates that the two mountains concept breaks through the limitations of traditional development paradigms, providing a foundational guide for ecological conservation and high-quality development in the Yellow River Basin. The research shows that constructing an ecological asset system and incorporating it into GDP accounting is the key to addressing the challenges of ecological value transformation. This requires adherence to the principles of “requisition-compensation balance” and “market-based transaction”, coupled with …
Theoretical Connotations And Chinese Practices Of Nature-Based Solutions,
2024
State Key Laboratory of Regional and Urban Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Theoretical Connotations And Chinese Practices Of Nature-Based Solutions, Bojie Fu, Jun Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
The global ecological environment is confronted with severe challenges such as intensified climate change, drastic reduction of biodiversity and land degradation, which seriously affect the sustainable development of human beings. These challenges promote profound reflection on the relationship between human beings and nature. Nature-based Solutions (NbS) has emerged as an innovative concept of global ecological governance thateffectively responds to societal challenges. Its development has gone through embryonic stage, developmental stage and comprehensive application stage. Multidisciplinary principles such as restoration ecology and landscape ecology constitute the theoretical foundation of NbS. China has effectively integrated the concept of NbS with the construction …
Scientific Understanding And Transformation Pathways For “Ice And Snow Are Also As Valuable As Gold And Silver”,
2024
Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Scientific Understanding And Transformation Pathways For “Ice And Snow Are Also As Valuable As Gold And Silver”, Qi Feng, Shijin Wang, Rongfang Zhao, Bao Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
“Lucid waters and lush mountains are invaluable assets”, and “ice and snow are also as valuable as gold and silver”. Excellent ecology, ecological enrichment, and happy life are concrete manifestations of the Chinese-style modernization featuring harmonious coexistence between human beings and nature. Compared with lucid waters and lush mountains, ice and snow covered land is mostly concentrated in winter and spring, making it rather difficult to transform them into mountains of gold and silver. How to forge a pathway of high-quality development of the ice and snow economy to drive the revitalization of rural industries in winter and spring is …
Three-Stage Transformation And Practical Path Of “Lucid Waters And Lush Mountains Are Invaluable Assets” Concept,
2024
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Three-Stage Transformation And Practical Path Of “Lucid Waters And Lush Mountains Are Invaluable Assets” Concept, Lei Shen, Chao Zhang, Shuai Zhong
Bulletin of Chinese Academy of Sciences (Chinese Version)
“Lucid waters and lush mountains are invaluable assets” concept (hereinafter referred to as two mountains concept) serves as the important component for China’s ecological civilization construction, breaking the dilemma of traditional development and environmental protection, and fostering the synergy between economy and ecology. Based on a framework integrating conceptual evolution, institutional construction, and practical implementation, this study examines the three stages: the awakening of paradigm and local breakthroughs during the ice-breaking period (2005–2012), system construction and national promotion in the establishment period (2013–2017), and value transformation and global contribution in the sublimation period (2018–present). The analysis reveals that the two …
Editorials,
2024
Chinese Academy of Sciences
Editorials
Bulletin of Chinese Academy of Sciences (Chinese Version)
No abstract provided.
Exploration And Practice Of Major Function Zoning Based On That “Lucid Waters And Lush Mountains Are Invaluable Assets,
2024
CAS Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China; Institutes of Science and Development, Chinese Academy of Sciences, Beijing 100190, China
Exploration And Practice Of Major Function Zoning Based On That “Lucid Waters And Lush Mountains Are Invaluable Assets, Jie Fan, Jian Gao
Bulletin of Chinese Academy of Sciences (Chinese Version)
President Xi Jinping’s thought of that “lucid waters and lush mountains are invaluable assets” has led China to modernize in a new form of ecological civilization, and it is also the general guideline for upgrading the major function zoning (MFZ) from planning to a national strategy and basic institution. Focusing on key ecological function zones of the MFZ, this study contends that the implementation of the MFZ strategy is a systematic exploration and innovative practice of the two mountains concept. It clarifies that the original intention of the MFZ is to protect lucid waters and lush mountains by combing through …
Practicing Concept Of “Lucid Waters And Lush Mountains Are Invaluable Assets” To Advance High-Quality Development Of Territorial Space,
2024
China Academy of Urban Planning & Design, Beijing 100037, China
Practicing Concept Of “Lucid Waters And Lush Mountains Are Invaluable Assets” To Advance High-Quality Development Of Territorial Space, Kai Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
The concept of “lucid waters and lush mountains are invaluable assets” (two mountains concept) constitutes an important component of Xi Jinping Thought on Ecological Civilization, providing the fundamental guidance for establishing China’s territorial space planning system and its associated technical framework. This study analyzes the specific manifestations and root causes of the periodic conflicts between urban development space and ecological space in China. It further examines the theoretical value and practical significance of the two mountains concept in fostering a harmonious coexistence between humanity and nature from the perspective of spatial planning. Currently, China is in a critical period for …
