Water Resource Management Commons^™

A Geospatial Assessment Of Groundwater Salinization In A Multi-Aquifer System: Durango, Mexico, Juan Lopez-Sierra

Graduate Theses/Dissertations

Groundwater salinization poses a critical environmental concern for water resource sustainability in arid and semi-arid regions. This study evaluates spatial and temporal patterns of groundwater salinity across the state of Durango, Mexico, using total dissolved solids (TDS), sodium adsorption ratio (SAR), as salinity indicators and nitrate-nitrogen (NO₃–N) as an anthropogenic indicator. Groundwater quality data were obtained from (CONAGUA), a Mexican water agency. To assess salinity variations with respect to time, while minimizing interannual sampling bias, two multi-year sampling periods were selected: 2012-2013, and 2020-2021. Final datasets consisted of 122 wells for 2012–2013 and 131 wells for 2020–2021. The wells were …

Potassium For High Rainfall Pastures In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

Potassium (K) deficiency can lead to a decline in clover content and severely limit pasture productivity in high rainfall pastures. Large amounts of potassium can be lost each year through leaching and removal of potassium in hay or silage.

This information is specific to high rainfall pastures receiving more than 600mm average annual rainfall in the south-west of Western Australia.

Tissue Sampling And Analysis For High Rainfall Pastures In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

Tissue testing helps identify nutrient deficiencies that impact plant health. In high rainfall areas ( > 600 mm), pastures are highly productive and have greater demand for both macro- and micronutrients. Micronutrient status is best assessed through plant tissue, as soil levels are difficult to measure accurately.

The Department of Primary Industries and Regional Development recommends tissue testing to assess the effectiveness of fertiliser and soil testing programs, and diagnose emerging macronutrient and micronutrient deficiencies that could cause production losses.

Sulfur For High Rainfall Pastures In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

Sulfur deficiency can substantially reduce pasture yield on sandy soils, particularly in wet years where the sulfate form of sulfur leaches below the root zone of pasture plants, making it unavailable.

This information applies specifically to high rainfall pastures (over 600mm average annual rainfall) in the south-west of Western Australia.

The Department of Primary Industries and Regional Development recommends basing fertiliser decisions on good evidence (soil and tissue test results)

Soil Sampling High Rainfall Pastures In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

Soil sampling and testing is an essential part of making good fertiliser decisions. Fertilisers are a large cost to farming pastures in high rainfall areas. This page is specific to sampling high rainfall pastures (more than 600mm average annual rainfall) in the south-west of Western Australia.

The Department of Primary Industries and Regional Development recommends soil sampling and testing as part of a plant nutrient management program.

Environmental Impact Of Nitrogen And Phosphorus Fertilisers In High Rainfall Pasture Areas Of Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

The most commonly used nitrogen and phosphorus fertilisers in the high rainfall (>600mm annual average) south-west of Western Australia can be leached into the groundwater and washed into waterways, resulting in serious environmental and economic damage.

The Department of Primary Industries and Regional Development recommends regular soil testing and consultation with FertCare-accredited advisers to reduce leaching losses and increase profit from added nutrients.

Spatial Resilience Of Coastal Zones From Landscape Pattern Perspective: Connotation, Characteristics, Key Elements, And Pathways For Enhancement, Haixing Meng, Congchun Wang, Shufeng Ye

Bulletin of Chinese Academy of Sciences (Chinese Version)

The coastal zone is a critical ecological barrier at the land–sea interface. Nevertheless, its defensive and regulatory functions have been severely undermined by climate change and intensified human activities, which have caused landscape fragmentation and reduced connectivity. From the perspective of landscape pattern, this study defines the concept of coastal zone spatial resilience and develops a three-dimensional framework of “structure–process–function”, elucidating its attributes of stability, adaptability, recoverability, and dynamic evolution. By coupling ecological spatial resilience theory, the study identifies key landscape elements shaping spatial resilience and proposes an assessment framework consisting of sensitivity, structure, and ecological vitality and services. Building …

Institutional Safeguards And International Experience For Construction Of Coastal Ecological Barrier, Jiayu Bai, Yalei Qing, Shufeng Ye

Bulletin of Chinese Academy of Sciences (Chinese Version)

The coastal zone is a transitional area shaped by the interaction between land and sea, and it holds significant importance for national ecological security as well as economic and social development. Against the backdrop of advancing Chinese modernization, the research on institutional safeguards for the construction of coastal ecological barrier is essential for building a comprehensive framework for ecological conservation from the mountaintop to the ocean, implementing the major projects to protect and restore key ecosystems and the “dual carbon” goals, and promoting ecological civilization and the construction of a Beautiful China. At present, China’s institutional safeguards for coastal ecological …

Exploring Ecological Zonation Of The Yellow River Estuary Coastal Zone Based On Nitrogen And Phosphorus Criteria, Dejuan Jiang, Song Qin, Zhengyi Liu, Ruiteng Sun, Xiaoshuai Hang, Tao Zou, Xiaoguang Li, Lijuan Li, Shichao Tian, Yanfang Li, Yongming Luo, Chuanyuan Wang, Yuan Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Estuaries, as ecologically sensitive brackish water mixing zones, face a critical bottleneck in refined management because traditional zonation based on socioeconomic attributes overlooks the ecological heterogeneity driven by salinity gradients and nutrient stoichiometry, leading to a disconnect between management measures and conservation needs. This study proposes a novel approach to coastal zonation using nitrogen and phosphorus nutrient criteria as an ecological benchmark. Overall ecological criteria are established for the Yellow River estuary (dissolved inorganic nitrogen: 0.258 mg/L; phosphate: 0.015 mg/L) and a differentiated management scheme is constructed based on a salinity gradient (26.5 PSU boundary). It is recommended to integrate …

Ecological Barrier Of Coastal Zone In China: Concept, Functions, And Construction Theory, Guangxuan Han, Xiaoli Bi, Xiyong Hou, Xiaoli Zhang, Qianguo Xing, Yuan Li, Haiqing Ma, Ting Wang, Song Qin

Bulletin of Chinese Academy of Sciences (Chinese Version)

The ecological barrier of coastal zone serves as a critical defense line for safeguarding coastal ecological security and sustainable socio-economic development, with multifaceted functions including wave attenuation, shoreline stabilization, and climate regulation. This study systematically elaborates on the concept and essence of ecological barriers of coastal zone, highlighting their core as land-sea continuums that synergistically leverage ecosystem integrity, hydrological connectivity, and biodiversity to provide systemic deliver protective functions. Nevertheless, China’s coastal ecological barrier construction faces four major challenges, namely, (1) theoretical frameworks, often derived from inland models, inadequately represent the complex land-sea interactions and socio-economic drivers; (2) the absence of …

Coastal Zone Ecological Barrier Construction: Holistic Governance And Its Promotion Path, Xiurong Huang, Aihua Jiang, Dou Xiaodong Dou

Bulletin of Chinese Academy of Sciences (Chinese Version)

The coastal zone is the frontier of the interaction between sea and land. As a special geographical unit, it has dual values of ecological security and economic development. It has become an important proposition to promote the resilience construction of coastal zone ecological barrier. In response to the current regulatory dilemma of “Kowloon Sea Governance”, structural contradictions in laws and norms, and complex conflicts of related interests, the construction of coastal zone ecological barrier must move from static protection to dynamic governance. In the goal dimension, the shift from “passive defense” to “resilient system construction” should be realized; in the …

How Does Vertical Hydroponic Farming Compare To Traditional Soil Farming In Terms Of Crop Yield, Energy Efficiency, And Cost?, Grace Morgan, Grace Henry, Rebecca Meenach, Jeana Odom

Student Scholar Symposium

Vertical hydroponics (hydro “water;” ponics “labor”) is a method of year-round farming that uses water in place of soil and supplies vegetables’ nutrients in a space-efficient setting. It dates back to 500 BC when it was used in the Hanging Gardens of Babylon, a wonder of the ancient world. Thousands of years later, vertical hydroponics has expanded across the globe to supply leafy greens, herbs, and grains. It is typically implemented in dense urban environments where green space is hard to come by as a form of sustainable farming. Our research seeks to answer the question “How does vertical hydroponic …

Shallow Groundwater Extraction Strategies In The Las Vegas Valley, Nevada, Teryl Stacey

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Las Vegas Valley faces severe water scarcity due to Nevada’s limited Colorado River allocation and an arid climate. Population growth and prolonged drought have intensified these constraints, necessitating alternative resource strategies. This project evaluated a strategy to make use of brackish, shallow groundwater (from the top 30 feet below ground surface) located in the central and east-central parts of the valley. Its objective was to extract lower quality shallow groundwater for use as an alternative to fresh water currently being used for some applications that require little to no treatment. Dust suppression is among the most promising of such …

Assessing Water Quality And Algae In Wetland Reserve Easements In The Alluvial Valleys Of Mississippi And Louisiana, Avery June Wissmueller

Theses and Dissertations

Wetlands in agricultural landscapes play a critical role in improving water quality by retaining and transforming nutrients and pollutants. In the Mississippi Alluvial Valley (MAV), widespread conversion of bottomland hardwood forests to row-crop agriculture has diminished this natural function. The Wetland Reserve Easement (WRE) program restores wetlands on marginal farmland to recover ecosystem services. In this study, I evaluated water quality and algal productivity in WREs compared to natural reference wetlands and crop sites. Restored wetlands showed improved water quality compared to crop sites and were often comparable to or intermediate between reference wetlands. Seasonal variation and hydrologic differences shaped …

Jer-2021 Assistance To The State Water Resources Research Institute Program (Year 1 Of 5) For The 104(B) Program, David Tarboton

Funded Research Records

No abstract provided.

Wg-2413 Remote Sensing Of Wine-Grapevine Transpiration For Improving Vine Water Status, Alfonso Faustino Torres

Funded Research Records

No abstract provided.

Summary Of Pine Valley Area Groundwater Studies, Melissa Stamp, Bethany Neilson, Anna Mcentire, Burdette Barker, Lisa Welsh, Joanna Endter-Wada, Brian Steed

Reports

The Utah Division of Water Resources contracted with Utah State University to document key scientific and policy information related to the current water conflict between Iron and Beaver Counties over the development of the Pine Valley Water Supply Project (PVWSP). The proposed PVWSP would pump groundwater from Pine Valley in Beaver County and pipe it southeast to the Cedar City region of Iron County served by the Central Iron County Water Conservancy District (CICWCD). Numerous concerns about the project have been raised by Beaver County and other interested parties. A number of these concerns are related to different understandings or …

Integrating Manager Perspectives Into The Evaluation Of Wetland Revegetation Strategies, Loren F. Taylor

All Graduate Theses and Dissertations, Fall 2023 to Present

Ecological restoration is the process of assisting the recovery of an ecosystem that has been degraded and is dependent on complex and context-specific decisions. The decision-making process influencing restoration is rarely examined alongside ecological processes. There is a need for research that incorporates the social, economic, institutional, and logistical considerations that shape real-world practices, as well as ecological processes. Decisions made by restoration practitioners and land managers (hereon “manager”) are challenged by the lack of information shared regarding the practical constraints (e.g., cost, labor, specialized equipment) they face. Revegetation, particularly in wetlands, poses challenges due to site conditions and degradation …

Evaluating The Preparedness Of Local Zoning Regulations For Flood Risk Reduction In The Most Affected Local Jurisdictions In Nebraska, Md Asaduzzaman Noor

Community and Regional Planning Program: Theses

Flooding has profound social, economic, and environmental impacts on local communities, and zoning plays a critical role in mitigating these risks. The 2019 Nebraska floods, among the most severe in the state’s history, highlighted the urgent need to strengthen local preparedness and mitigation strategies. This study assesses the extent to which local zoning regulations in Nebraska’s most affected jurisdiction, including rural areas, address flood risk reduction. A systematic review of 117 zoning ordinances from counties, cities, towns, and villages, we applied a structured analytical framework encompassing regulatory and permitting policies, voluntary and incentive-based measures, and nature-based solutions. The results show …

Bridging Conservation And Disaster Recovery: A Dual Study On Wetland Program Plans Evaluation And Midwest Post Disaster Recovery Assessment, Rao Nargis Jahan

Community and Regional Planning Program: Theses

Wetlands provide essential ecological, social, and economic benefits for our society. In the United States, states and tribes play crucial roles in wetland protection, restoration, and management. However, no research has systematically measured state-level wetland planning efforts towards national conservation goals. This study is the first to comprehensively evaluate how state-level Wetland Program Plans (WPPs) align with national missions, particularly the "no-net-loss" of wetlands goal. Our research assesses the EPA-approved state-level WPPs from 42 out of 50 states in the United States during the period from 2015 to 2024. Using a protocol of 30 indicators across five categories, this study …