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Articles 91 - 120 of 8386
Full-Text Articles in Physical Sciences and Mathematics
Late Holocene Fire History Reconstruction Of Beaver Lake In The Northwest Lowlands Of The Olympic Peninsula, Grace Mckenney
Late Holocene Fire History Reconstruction Of Beaver Lake In The Northwest Lowlands Of The Olympic Peninsula, Grace Mckenney
All Master's Theses
Fire is an essential component of the landscapes and forests of the Pacific Northwest, including the temperate rainforests of the Olympic Peninsula. Previous fire history reconstructions from the peninsula show that fire return intervals varied throughout the postglacial period, primarily in response to climatic changes and corresponding shifts in vegetation. However, much less is known about the fire history of the low-elevation forests of the Olympic Peninsula and the role of cultural fire regimes in these environments. The purpose of this study was to reconstruct the paleoenvironmental history of a low-elevation study site, Beaver Lake, located in the northwestern part …
Effects Of Low-Cost, Low-Tech Tools For Riparian Restoration On Prairie Streams In Western South Dakota, James Andrew Joseph Bolyard
Effects Of Low-Cost, Low-Tech Tools For Riparian Restoration On Prairie Streams In Western South Dakota, James Andrew Joseph Bolyard
Electronic Theses and Dissertations
Despite making up less than two percent of the overall landscape in the arid and semi-arid western US, riparian areas are a crucial resource for agriculture, livestock, and wildlife. However, many have impaired function and reduced riparian cover. Low-Cost, Low-Tech Tools (LCLTT) are a subset of Process-Based Restoration (PBR) used for riparian restoration that were chosen for their cost-effectiveness and minimal technical requirements. LCLTT has been tested in mountainous areas of the western US but only recently implemented in the Northern Great Plains (NGP). Given their novelty as an approach toward restoration for the region, professional restoration and landowner communities …
Assessment Of Avian Community Structure And Habitat Connectivity In The Fanno Creek Corridor Bird Surveys, Habitat Assessment, And Management Recommendations, Grace Hall
Environmental Science and Management Professional Master's Project Reports
Urbanization can significantly impact habitat quality and connectivity for avian communities, decreasing species richness and diversity. However, in highly fragmented habitats, urban parks and riparian zones can provide important habitat corridors for birds that facilitate movement and access to essential resources. On the west side of greater Portland, Oregon, Fanno Creek may serve as a habitat corridor for birds and other local wildlife.
Fanno Creek is a 25-kilometer tributary of the Tualatin River that runs through the cities of Portland, Beaverton, Tigard, and Durham in northwestern Oregon. The land surrounding the creek includes residential, commercial, and industrial properties as well …
Dynamic Rates Of Freshwater Drum Near The Northern Extent Of Their Range: Evidence Of Environment-Recruitment Relationships, M. Stuart, N. Kludt, M. A. Pegg, F. Montesanto, C. Lyon, C. J. Chance-Ossowski
Dynamic Rates Of Freshwater Drum Near The Northern Extent Of Their Range: Evidence Of Environment-Recruitment Relationships, M. Stuart, N. Kludt, M. A. Pegg, F. Montesanto, C. Lyon, C. J. Chance-Ossowski
School of Natural Resources: Faculty Publications
No abstract provided.
Recent Beak Evolution In North American Starlings After Invasion, Julia M. Zichello, Shelagh T. Deliberto, Paul Shrewsbury, Agnieszka A. Pierwola, Scott J. Werner
Recent Beak Evolution In North American Starlings After Invasion, Julia M. Zichello, Shelagh T. Deliberto, Paul Shrewsbury, Agnieszka A. Pierwola, Scott J. Werner
United States Department of Agriculture Wildlife Services: Staff Publications
European starlings are one of the most abundant and problematic avian invaders in the world. From their native range across Eurasia and North Africa, they have been introduced to every continent except Antarctica. In 160 years, starlings have expanded into different environments throughout the world, making them a powerful model for understanding rapid evolutionary change and adaptive plasticity. Here, we investigate their spatiotemporal morphological variation in North America and the native range. Our dataset includes 1,217 specimens; a combination of historical museum skins and modern birds. Beak length in the native range has remained unchanged during the past 206 years, …
Oral Rabies Vaccination Of Raccoons (Procyon Lotor) Across A Development Intensity Gradient In Burlington, Vermont, Usa, 2015–2017, Emily M. Beasley, Kathleen M. Nelson, Dennis Slate, Amy T. Gilbert, Frederick E. Pogmore, Richard B. Chipman, Amy J. Davis
Oral Rabies Vaccination Of Raccoons (Procyon Lotor) Across A Development Intensity Gradient In Burlington, Vermont, Usa, 2015–2017, Emily M. Beasley, Kathleen M. Nelson, Dennis Slate, Amy T. Gilbert, Frederick E. Pogmore, Richard B. Chipman, Amy J. Davis
United States Department of Agriculture Wildlife Services: Staff Publications
Management of the raccoon rabies virus variant in North America is conducted primarily using oral rabies vaccination (ORV). When a sufficient proportion of the population is vaccinated (60%), rabies transmission can be eliminated. To date, ORV programs have successfully controlled and eliminated raccoon rabies in rural areas, but there has been less success in urban areas. We studied the proportions of rabies virus neutralizing antibodies (RVNA) in a raccoon (Procyon lotor) population during a 3-year ORV trial in developed areas of Burlington, Vermont, United States. We used a modified N-mixture model to estimate raccoon abundance, RVNA seroprevalence, and …
Assessing The Efficiency Of Local Rabies Vaccination Strategies For Raccoons (Procyon Lotor) In An Urban Setting, Guillaume Bastille-Rousseau, Nicole T. Gorman, Katherine M. Mcclure, Larissa Nituch, Tore Buchanan, Richard B. Chipman, Amy T. Gilbert, Kim M. Pepin
Assessing The Efficiency Of Local Rabies Vaccination Strategies For Raccoons (Procyon Lotor) In An Urban Setting, Guillaume Bastille-Rousseau, Nicole T. Gorman, Katherine M. Mcclure, Larissa Nituch, Tore Buchanan, Richard B. Chipman, Amy T. Gilbert, Kim M. Pepin
United States Department of Agriculture Wildlife Services: Staff Publications
Raccoon rabies virus (RRV) has been managed using multiple vaccination strategies, including oral rabies vaccination and trap-vaccinate-release (TVR). Identifying a rabies vaccination strategy for an area is a nontrivial task. Vaccination strategies differ in the amount of effort and monetary costs required to achieve a particular level of vaccine seroprevalence (efficiency). Simulating host movement relative to different vaccination strategies in silico can provide a useful tool for exploring the efficiency of different vaccination strategies. We refined a previously developed individual-based model of raccoon movement to evaluate vaccination strategies for urban Hamilton, Ontario, Canada. We combined different oral rabies vaccination baiting …
Site-Specific Space Use And Resource Selection By Black Vultures (Coragyps Atratus) In The Southeastern Usa, Betsy Evans, John S. Humphrey, Eric A. Tillman, Michael L. Avery, Bryan M. Kluever
Site-Specific Space Use And Resource Selection By Black Vultures (Coragyps Atratus) In The Southeastern Usa, Betsy Evans, John S. Humphrey, Eric A. Tillman, Michael L. Avery, Bryan M. Kluever
United States Department of Agriculture Wildlife Services: Staff Publications
North American populations of Black Vultures Coragyps atratus have increased and expanded their distribution in the southern and eastern USA. In conjunction with these patterns has been a rise in human–vulture conflicts. To improve our understanding of space use patterns and better inform management, we evaluated the movements of Black Vultures (n = 23) in the southeastern USA using a long-term GPS tracking database. Our specific objectives were to: (1) quantify home-range sizes in relation to season and geographical study location and (2) examine within-home-range resource selection to identify landscape and anthropogenic factors influencing roost and diurnal space use. …
Limitations Of Invasive Snake Control Tools In The Context Of A New Invasion On An Island With Abundant Prey, Shane R. Siers, Melia G. Nafus, Jereid E. Calaor, Rachel M. Volsteadt, Matthew S. Grassi, Megan Volsteadt, Aaron F. Collins, Patrick D. Barnhart, Logan T. Huse, Amy A. Yackel Adams, Diane L. Vice
Limitations Of Invasive Snake Control Tools In The Context Of A New Invasion On An Island With Abundant Prey, Shane R. Siers, Melia G. Nafus, Jereid E. Calaor, Rachel M. Volsteadt, Matthew S. Grassi, Megan Volsteadt, Aaron F. Collins, Patrick D. Barnhart, Logan T. Huse, Amy A. Yackel Adams, Diane L. Vice
United States Department of Agriculture Wildlife Services: Staff Publications
In October 2020, a new population of invasive brown treesnakes (Boiga irregularis) was discovered on the 33-ha Cocos Island, 2.5 km off the south coast of Guam, United States. Cocos Island is a unique conservation resource, providing refuge for many lizards and birds, including endangered species, which were extirpated from mainland Guam by invasive predators including brown treesnakes. We sought to evaluate the usefulness of toxic baiting with acetaminophen-treated carrion baits and cage trapping, common tools for the control of brown treesnakes on mainland Guam, as potential eradication tools on Cocos Island. We evaluated multiple bait types and …
Treatment With The Immunocontraceptive Vaccine, Gonacon, Induces Temporary Fertility Control In Free-Ranging Prairie Dog Populations In Colorado, Usa, Aaron B. Shiels, Jackson Runte, Emily W. Ruell, Douglas C. Eckery, Gary W. Witmer, Daniel J. Salkeld
Treatment With The Immunocontraceptive Vaccine, Gonacon, Induces Temporary Fertility Control In Free-Ranging Prairie Dog Populations In Colorado, Usa, Aaron B. Shiels, Jackson Runte, Emily W. Ruell, Douglas C. Eckery, Gary W. Witmer, Daniel J. Salkeld
United States Department of Agriculture Wildlife Services: Staff Publications
Context
Prairie dogs (Cynomys spp.) are rodents enjoyed by some humans; yet, they cause crop and property damage, and carry zoonotic disease. Non-lethal control of prairie dogs is of interest in urban/suburban settings. The injectable immunocontraceptive vaccine GonaCon (active ingredient is gonadotropin-releasing hormone [GnRH]) has been shown to be effective at reducing fertility in equine and deer, and is a US EPA-registered vaccine for use in these ungulate species.
Aims
To conduct a replicated field study to test efficacy of GonaCon in black-tailed prairie dogs (C. ludovicianus), and if found to be efficacious, to help facilitate …
Comparison Of Ketamine-Xylazine, Butorphanol-Azaperone-Medetomidine, And Nalbuphine-Medetomidine-Azaperone For Raccoon (Procyon Lotor) Immobilization, Shylo R. Johnson, Christine K. Ellis, Chad Wickham, Molly R. Selleck, Amy T. Gilbert
Comparison Of Ketamine-Xylazine, Butorphanol-Azaperone-Medetomidine, And Nalbuphine-Medetomidine-Azaperone For Raccoon (Procyon Lotor) Immobilization, Shylo R. Johnson, Christine K. Ellis, Chad Wickham, Molly R. Selleck, Amy T. Gilbert
United States Department of Agriculture Wildlife Services: Staff Publications
Raccoons (Procyon lotor) are frequently handled using chemical immobilization in North America for management and research. In a controlled environment, we compared three drug combinations: ketamine-xylazine (KX), butorphanol-azaperone-medetomidine (BAM), and nalbuphinemedetomidine- azaperone (NalMed-A) for raccoon immobilization. In crossover comparisons, raccoons received a mean of the following: 8.66 mg/kg ketamine and 1.74 mg/kg xylazine (0.104 mL/kg KX); 0.464 mg/kg butorphanol, 0.155 mg/kg azaperone, and 0.185 mg/kg medetomidine (0.017 mL/kg BAM); and 0.800 mg/kg nalbuphine, 0.200 mg/kg azaperone, and 0.200 mg/kg medetomidine (0.020 mL/kg NalMed-A). Induction time was shortest with KX (mean6SE, 10.060.7 min) and longest with NalMed-A (13.061.3 min). …
Ecocultural Monitoring And Erosion Mitigation In Powers Creek, A Baduwa’T Tributary, In Blue Lake, California, Sebastian Castillo, Lillyauna Perry, Daniel Price, Lokey Struve
Ecocultural Monitoring And Erosion Mitigation In Powers Creek, A Baduwa’T Tributary, In Blue Lake, California, Sebastian Castillo, Lillyauna Perry, Daniel Price, Lokey Struve
Cal Poly Humboldt Capstone Honor Roll
Riparian areas are of great ecological and cultural importance. They provide a variety of ecosystem services, protecting water quality, minimizing climatological changes, and acting as valuable wildlife habitat. They are often also places of connection and access to resources for indigenous communities. Powers Creek, a tributary of the Baduwa’t, is one such place for the Blue Lake Rancheria tribal community. Through the utilization of the process based restoration methodology, our team was able to develop dynamic, place-based solutions for the environmental ails impacting Powers Creek. On-site vegetation and rock weirs were employed as low-tech bioengineering technologies in order to slow …
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California, Natalie Bridget Calderon, Myion Rickey, King Baptista, Owen Bardsley, Jillian Snowhook
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California, Natalie Bridget Calderon, Myion Rickey, King Baptista, Owen Bardsley, Jillian Snowhook
Cal Poly Humboldt Capstone Honor Roll
In July of 2022, the Wiyot Tribe bought back one of their first pieces of ancestral forest within the Mouralherwaqh "more-RAH-share-wahg" village area (Wiyot, 2022). Before this repatriation, the Tribe owned less than 1% of their ancestral lands; after, the Tribe’s land holdings increased by 10% (Reclaiming Mouralherwaqh | Humboldt NOW | Cal Poly Humboldt, 2022). Mouralherwaqh is a 46 acre coastal site located near present day King Salmon, California and has high ecological and culturally significant values (Wiyot, 2022). Prior to the change of ownership, Mouralherwaqh was privately-owned and in 2014 underwent a clear-cut timber harvest within eight-acres of …
Artificial Illumination Of Trawl Gear Components To Reduce Pacific Halibut (Hippoglossus Stenolepis) Bycatch In The U.S. West Coast Groundfish Bottom Trawl Fishery, Derek Jackson
Dissertations, Theses, and Masters Projects
Pacific halibut (Hippoglossus stenolepis) is a prohibited species for the U.S. West Coast Bottom Trawl Fishery and in the last decade, there has been a concentrated interest in the use of artificial illumination serving as a potential bycatch reduction device. Previous studies conducted off the coast of Oregon have found that the addition of green light-emitting diodes to the bridles of low-rise, cutback trawls greatly reduced the number of Pacific halibut caught. However, recent regulation changes now permit high-rise trawls, a gear configuration that fishes a very different volume of water than the previously permissible gear profile, in areas where …
Dam Dimensions And Surface Porosity Affect The Water Storage Capacity Of Beaver Dam Analogs Compared To Natural Beaver Dams, Sawyer Nagle
Dam Dimensions And Surface Porosity Affect The Water Storage Capacity Of Beaver Dam Analogs Compared To Natural Beaver Dams, Sawyer Nagle
EWU Masters Thesis Collection
Widespread stream incision in the Western United States, exacerbated by climate change and anthropogenic activities, necessitates effective restoration strategies. My study compares water retention by Beaver Dam Analogs (BDAs) to natural beaver dams and undammed control reaches. I compared how dam dimensions affect the hydraulic performance of both BDAs and beaver dams, revealing gaps in research on their comparative effectiveness. My study was conducted across eight watersheds in Washington state and two in Idaho. Hydraulic retention time (HRT), water travel time, and pool volume were response variables used to determine dam effectiveness. Dam height, thickness, length and porosity were the …
Assessing Stormwater Management Pond Water Quality, Function, And The Potential Biotic Effects To Receiving Waters, Mitchell Elstone
Assessing Stormwater Management Pond Water Quality, Function, And The Potential Biotic Effects To Receiving Waters, Mitchell Elstone
Theses and Dissertations (Comprehensive)
The use of stormwater management ponds (SWMPs) has been increasing over the past five decades. However, an in-depth understanding of the daily performance of SWMPs and functionality during cold periods is limited. This is in part because mandated monitoring is relatively infrequent, and the assumption that SWMPs are inactive between storm events and during the winter. The goals of this research were to better understand daily stormwater (SW) characteristics, the performance of SWMPs based on current forms of evaluation and assess the potential for SWMP effluent to impact downstream biota. Influent and effluent samples from two SWMPs were collected daily …
Nesting Habitat Selection And Management Of Three Freshwater Turtle Species Along The Shorelines Of Lake Champlain, Destini Acosta
Nesting Habitat Selection And Management Of Three Freshwater Turtle Species Along The Shorelines Of Lake Champlain, Destini Acosta
Graduate College Dissertations and Theses
Habitat loss, caused by factors like urbanization and land conversion, disrupts ecosystems and can lead to population declines and even extinctions of species that rely on those habitats for survival. Loss of shoreline habitat has been widespread and reduces nesting grounds for species like freshwater turtles, often threatening their reproductive success and population viability. In the Lake Champlain Basin, several turtle species have experienced declines and recovery efforts are limited by a lack of information on habitats selected during the crucial period of nesting. This study aimed to identify and characterize nesting habitat selection of freshwater turtles and included two …
A Tale Of Two Working Landscapes, Sage C. Sutcliffe
A Tale Of Two Working Landscapes, Sage C. Sutcliffe
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Better Understanding The Barred Owl, Adam Lee Potts
Better Understanding The Barred Owl, Adam Lee Potts
Graduate Student Theses, Dissertations, & Professional Papers
This thesis research presents an analysis of barred owl nest site selection in an understudied region of their expanded range. The barred owl has dramatically expanded its range westwards over the last 150 years, prompting multiple conflicting reinterpretations of their species account. Hypotheses of range expansion are reviewed to provide context for this study’s research. This study gathers empirical data on nest site selection in the mixed conifer forests of Montana’s Seeley-Swan and Mission Valleys. Eight barred owl nests were located following extensive territory surveys. Field measurements of tree height and diameter using USFS Forest Inventory and Analysis (FIA) plot …
Mapping With The Land: Co-Developing A Cumulative Impact Monitoring And Land Stewardship Framework With Sambaa K’E First Nation, Northwest Territories, Canada, Michael S. Mcphee
Mapping With The Land: Co-Developing A Cumulative Impact Monitoring And Land Stewardship Framework With Sambaa K’E First Nation, Northwest Territories, Canada, Michael S. Mcphee
Theses and Dissertations (Comprehensive)
Across the Northwest Territories (NWT), Canada, Indigenous populations are striving to achieve effective environmental protection, whilst navigating complex methods, policies, and research relationships within co-management contexts. This thesis seeks to identify how differing cultural systems, environmental change, and fractured partnerships may be unified to align with the needs of the Sambaa K’e First Nation (SKFN), a remote Dehcho Dene community. Indigenous methodologies guided co-development of research questions with SKFN leadership which yielded objectives a) develop a GIS-based method to manage, organize and mobilize cultural and environmental data; b) develop a new stewardship monitoring procedure so that users can apply the …
Incorporating Effects-Based Approaches Into Environmental Impact Assessment To Improve Post-Development Monitoring, Carolyn J M Brown
Incorporating Effects-Based Approaches Into Environmental Impact Assessment To Improve Post-Development Monitoring, Carolyn J M Brown
Theses and Dissertations (Comprehensive)
Over the last 50 years, improvements in design of industrial facilities have significantly reduced environmental impacts. But impacts still occur and monitoring programs are the main mechanism to inform when modification/implementation of mitigation is needed. Informed decisions require adequate baseline (pre-development) data to predict impacts based on the development’s design and to understand when the post-development environment has changed. An adaptive monitoring plan provides an effective way to evaluate monitoring results and allow for proactive responses to environmental change before impacts become difficult or challenging to reverse. Unfortunately, baseline data gathered during an environmental impact assessment (EIA) is often inadequate …
Ground Tire Rubber As A Sustainable Additive: Transforming Desert Sand Behavior, Nabil Ismael, Dalya Ismael, Asmaa Al-Ahmad
Ground Tire Rubber As A Sustainable Additive: Transforming Desert Sand Behavior, Nabil Ismael, Dalya Ismael, Asmaa Al-Ahmad
Engineering Technology Faculty Publications
Managing waste tires presents a significant challenge globally, particularly in regions experiencing high temperatures and shortage of landfill sites. This issue is affecting countries like Kuwait, where the abundance of waste tires is a major source of environmental and safety risks, particularly during the intensely hot summer months. This extreme heat has sparked numerous fires, leading to substantial air pollution due to thick black smoke. Given the limited disposal options, recycling waste tires and finding practical applications for ground tire rubber (GTR) is essential. To address the challenge, a comprehensive laboratory testing program was conducted, using locally produced rubber aggregates …
Rule-In-Use For Community-Based Springs Management Faces Land Use Pressures: Lesson Learned From Manggarai District, Bernadinus Steni, Hariadi Kartodihardjo, Soeryo Adiwibowo, Ruchyat Deni Djakapermana
Rule-In-Use For Community-Based Springs Management Faces Land Use Pressures: Lesson Learned From Manggarai District, Bernadinus Steni, Hariadi Kartodihardjo, Soeryo Adiwibowo, Ruchyat Deni Djakapermana
The Indonesian Journal of Socio-Legal Studies
The struggle for water is one of the greatest immediate risks of the climate crisis. Therefore, the institutional challenge of water management is increasingly urgent and requires a number of consensuses to succeed, including community-based natural resource management (CBNRM). A key challenge to the traditional consensus for water conservation is the increasing need for land conversion due to population growth, which in turn deflects decision-making power away from traditional institutions towards external decision-makers such as regional governments. Using Ostrom's conceptual framework of rules of use, this research examines shifting spring water management in the context of Kabupaten Manggarai. The paper …
Analysis Of Community-Based Pattern Of Water Demand And Supply, Ishaku Dibal Joshua, Abdullahi Chado Salihu, Ayuba Musa Mshelia, Nchedo Nnedinma Ubachukwu
Analysis Of Community-Based Pattern Of Water Demand And Supply, Ishaku Dibal Joshua, Abdullahi Chado Salihu, Ayuba Musa Mshelia, Nchedo Nnedinma Ubachukwu
Journal of Environmental Science and Sustainable Development
Gombi rural community of Adamawa state, Nigeria, has witnessed significant growth in human population, which has contributed to an increase in water demand. Thus, the study analyzed water demand and supply patterns in Gombi communities of Adamawa State, Nigeria. A structured questionnaire was used for data collection. Descriptive statistics such as mean and percentages and inferential statistics like Analysis of Variance (ANOVA), chi-square, and linear regression were adopted for the analysis. The results on socioeconomic characteristics showed that the majority were females, with low household income levels, large household sizes, and in their active ages. Hand-dug well water was the …
An Innovative Restoration Mode “Macrophytes–Fishes–Benthons–Birds” Implemented In Aesthetic Plateau Wetlands, Junxing Yang, Xiaoai Wang, Xiaofu Pan, Yuanwe Zhang, Heqi Wu, Anli Wu
An Innovative Restoration Mode “Macrophytes–Fishes–Benthons–Birds” Implemented In Aesthetic Plateau Wetlands, Junxing Yang, Xiaoai Wang, Xiaofu Pan, Yuanwe Zhang, Heqi Wu, Anli Wu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Affected by both increasing human activities and climate change, Yunnan Plateau lakes were faced with threats such as water level decreasing, water-body reducing, and severe pollution. Many indigenous species were endangered or even disappeared. The ecological restorations implemented since 1980s almost all used alien species. As an inevitable result, severe negative impacts from alien species were observed on the Plateau wetland ecosystem and indigenous species. To solve these problems, with the support of relevant projects, an innovative restoration mode mainly with indigenous flag-species “macrophytes – fishes – benthons – birds” was proposed. This innovative mode was implemented respectively in Dianchi …
Editorial
Bulletin of Chinese Academy of Sciences (Chinese Version)
No abstract provided.
Scenario Simulation Of “35 Goals” And “50 Vision” For Beautiful China Initiative, Huiyi Zhu, Linsheng Yang, Wei Qi, Erqi Xu, Jiewei Chen, Quansheng Ge
Scenario Simulation Of “35 Goals” And “50 Vision” For Beautiful China Initiative, Huiyi Zhu, Linsheng Yang, Wei Qi, Erqi Xu, Jiewei Chen, Quansheng Ge
Bulletin of Chinese Academy of Sciences (Chinese Version)
Realizing the Beautiful China Initiative is the general goal of China’s ecological civilization construction in the next 30 years. The overall goal includes two phased goals: “35 goals” and “50 vision”. This study first expounds the understanding of the goal from the aspects of ecosystem elements, structure, process, and function, and then constructs an index system to describe the goal and simulates the “35 goals” and “50 vision” under the trend of climate change, population decline and economic growth. The results show that, by 2035, China will have a population of 1.44 billion (including Hong Kong, Macao, and Taiwan) and …
Ecological Operation In Yangtze River Basin With Yangtze River Simulator, Jun Xia, Zhonghui Lin, Chesheng Zhan, Wenjuan Gao, Yunliang Li, Jing Yao, Sidong Zeng, Renyong Huang, Hongzhu Wang
Ecological Operation In Yangtze River Basin With Yangtze River Simulator, Jun Xia, Zhonghui Lin, Chesheng Zhan, Wenjuan Gao, Yunliang Li, Jing Yao, Sidong Zeng, Renyong Huang, Hongzhu Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
Ecological protection and green development in the Yangtze River basin are critical to the ecological construction of a Beautiful China. This study analyzes the current situation and main problems of the water ecology in the Yangtze River basin, and introduces the development of the Yangtze River Simulator, and the design for the ecological operation of the Three Gorges Reservoir, the main river, and the lakes connected to the river. Through the simulation of the main stream water ecology and lake water ecology by the Yangtze River Simulator, the optimization plan for the ecological regulation of the Three Gorges Reservoir was …
Developing Characteristic Resource Plants To Build A Beautiful China, Lei Shi, Zheng'an Liu, Lijun Wang, Qingyan Shu, Meiyu Sun, Wei Duan, Hui Li
Developing Characteristic Resource Plants To Build A Beautiful China, Lei Shi, Zheng'an Liu, Lijun Wang, Qingyan Shu, Meiyu Sun, Wei Duan, Hui Li
Bulletin of Chinese Academy of Sciences (Chinese Version)
It is an important way to solve the contradiction among ecology, production and life in natural protected areas and ecologically fragile region by constructing the three-production integration mode of characteristic resource plants. In order to fully tap and make use of the outstanding characteristics of oil tree peony, wine grape and aromatic plants, this study carried out technology integration of variety screening, planting, harvesting, processing, product research and development, and industrialization demonstration in and around natural protected areas and ecologically fragile region. Through the economic benefits generated, the life of the people in the natural protected areas and ecologically fragile …
Synergism Utilization Of Urban Multi-Source Solid Waste And District Green Recycling Development—Taking Dongguan Haixinsha National Resource Recycling Demonstration Base As An Example, Yao Shi, Huiquan Li, Shaohua Chen, Weiqiang Chen, Caihong Xiong, Songgeng Li, Yin Wang, Peng Qian, Shuangde Li, Chao Hua, Ping Lu, Yupeng Liu, Chenmu Zhang, Jianwen Chu, Xin Lu
Synergism Utilization Of Urban Multi-Source Solid Waste And District Green Recycling Development—Taking Dongguan Haixinsha National Resource Recycling Demonstration Base As An Example, Yao Shi, Huiquan Li, Shaohua Chen, Weiqiang Chen, Caihong Xiong, Songgeng Li, Yin Wang, Peng Qian, Shuangde Li, Chao Hua, Ping Lu, Yupeng Liu, Chenmu Zhang, Jianwen Chu, Xin Lu
Bulletin of Chinese Academy of Sciences (Chinese Version)
The long-term storage and extensive disposal of solid waste have caused serious water soil air composite pollution. It is necessary to strengthen the scientific and effective utilization of solid waste, which is not only conducive to solving the major pollution problem of solid waste, but also alleviates the shortage of resources and energy in China. This study summarizes three typical types of urban solid waste comprehensive treatment experience models, and points out that the solid waste circular economy model characterized by centralization, resource utilization, and greening is the main way to solve the complex problem of solid waste. Therefore, it …