Mountain areas are often rich in ecological diversity and recreational opportunities. Mountain tourism is thought to be an effective and important means for maintaining and expanding rural economies and, thus, improvi...Mountain areas are often rich in ecological diversity and recreational opportunities. Mountain tourism is thought to be an effective and important means for maintaining and expanding rural economies and, thus, improving the living conditions of rural societies. As mountain tourism service research is a professional field with several disciplines involved, a multi-disciplinary management pIatform is needed and it facilitates participation in sustainable mountain development by diverse stakeholders. With the source regions of the Yangtze and the Yellow River as a case study, this paper presents a conceptual framework for an adaptation management of mountain tourism services according to technical, policy, social and economic dimensions. The framework is based on a vulnerability assessment of mountain ecosystems, and can serve as a reference for the development of tourism service in other mountain areas.展开更多
Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discus...Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discussed in this paper. The integrated management strategy, which includes one ultimate goal, four standards, nine countermeasures, and the concept of 'three Yellow Rivers,' is a contemporary management strategy and represents the vision of the Chinese government and engineers for the sustainable development of the Yellow River basin.展开更多
Promoting ecological protection and high-quality development of the Yellow River Basin is a major national strategy that is planned and promoted by President Xi Jinping.As an important ecological formation in the Yell...Promoting ecological protection and high-quality development of the Yellow River Basin is a major national strategy that is planned and promoted by President Xi Jinping.As an important ecological formation in the Yellow River Basin and an important part of the“China Water Tower,”the Sichuan part of the Yellow River Basin plays an important role in ecological management of the whole basin.Therefore,based on the present situation and the rich experience of ecological protection and high-quality development in the Yellow River Basin in Sichuan,this study puts forward a feasible plan for long-term ecological management of the Yellow River Basin in Sichuan.展开更多
Understanding the influencing factors and the evolving trends of the Water-Sediment Regulation System(WSRS)is vital for the protection and management of the Yellow River.Past studies on WSRS have been limited in focus...Understanding the influencing factors and the evolving trends of the Water-Sediment Regulation System(WSRS)is vital for the protection and management of the Yellow River.Past studies on WSRS have been limited in focus and have not fully addressed the complete engineering control system of the basin.This study takes a holistic view,treating sediment management in the Yellow River as a dynamic and ever-evolving complex system.It merges concepts from system science,information theory,and dissipative structure with practical efforts in sediment engineering control.The key findings of this study are as follows:between 1990 and 2019,the average Yellow River Sediment Regulation Index(YSRI)was 55.99,with the lowest being 50.26 in 1990 and the highest being 61.48 in 2019;the result indicates that the WSRS activity decreased,yet it fluctuated,gradually approaching the critical threshold of a dissipative structure.展开更多
Based on site condition of Yellow River Delta,the significance,designing,planting and maintenance management of garden groundcover were analyzed in a systematic way,which provided reference for urban greening in the r...Based on site condition of Yellow River Delta,the significance,designing,planting and maintenance management of garden groundcover were analyzed in a systematic way,which provided reference for urban greening in the region.展开更多
Guan River Estuary and adjacent coastal area(GREC) suffer from serious pollution and eutrophicational problems over the recent years.Thus,reducing the land-based load through the national pollutant total load control ...Guan River Estuary and adjacent coastal area(GREC) suffer from serious pollution and eutrophicational problems over the recent years.Thus,reducing the land-based load through the national pollutant total load control program and developing hydrodynamic and water quality models that can simulate the complex circulation and water quality kinetics within the system,including longitudinal and lateral variations in nutrient and COD concentrations,is a matter of urgency.In this study,a three-dimensional,hydrodynamic,water quality model was developed in GREC,Northern Jiangsu Province.The complex three-dimensional hydrodynamics of GREC were modeled using the unstructured-grid,finite-volume,free-surface,primitive equation coastal ocean circulation model(FVCOM).The water quality model was adapted from the mesocosm nutrients dynamic model in the south Yellow Sea and considers eight compartments:dissolved inorganic nitrogen,soluble reactive phosphorus(SRP),phytoplankton,zooplankton,detritus,dissolved organic nitrogen(DON),dissolved organic phosphorus(DOP),and chemical oxygen demand.The hydrodynamic and water quality models were calibrated and confirmed for 2012 and 2013.A comparison of the model simulations with extensive dataset shows that the models accurately simulate the longitudinal distribution of the hydrodynamics and water quality.The model can be used for total load control management to improve water quality in this area.展开更多
The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cy...The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cycle process and its analysis object is evapotranspiration (ET), a main consumption component in the water resources dynamic transformation process. A case study was undertaken by selecting soil water resources in the Yellow River Basin and employing the WEP-L distributed hydrological model with physics mechanisms. This paper discusses the amount and consumption efficiency of soil-water resources according to completely simulated results of water cycle elements throughout the basin. Results indicate that it is important for the ET-based modern water resources management strategy to alleviate water resources scarcity because it may not only avoid unused water wasting but also improve water use efficiency. Therefore, an ET-based modern water resources management scheme is a good complement to the traditional water resources demand management system.展开更多
基金supported by the grant from the National Basic Research Program of China (973 Program, No. 2007CB411507)Open Fund from the State Key Laboratory of Cryosphere Science (SKLCS 08-05)
文摘Mountain areas are often rich in ecological diversity and recreational opportunities. Mountain tourism is thought to be an effective and important means for maintaining and expanding rural economies and, thus, improving the living conditions of rural societies. As mountain tourism service research is a professional field with several disciplines involved, a multi-disciplinary management pIatform is needed and it facilitates participation in sustainable mountain development by diverse stakeholders. With the source regions of the Yangtze and the Yellow River as a case study, this paper presents a conceptual framework for an adaptation management of mountain tourism services according to technical, policy, social and economic dimensions. The framework is based on a vulnerability assessment of mountain ecosystems, and can serve as a reference for the development of tourism service in other mountain areas.
基金The National Natural Science Foundation of China and the Yellow River Conservancy Commission,Ministry of Water Resources,No.50239040The Science Fund for Creative Research Groups,the National Natural Science Foundation of China,No.50221903
文摘Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discussed in this paper. The integrated management strategy, which includes one ultimate goal, four standards, nine countermeasures, and the concept of 'three Yellow Rivers,' is a contemporary management strategy and represents the vision of the Chinese government and engineers for the sustainable development of the Yellow River basin.
文摘Promoting ecological protection and high-quality development of the Yellow River Basin is a major national strategy that is planned and promoted by President Xi Jinping.As an important ecological formation in the Yellow River Basin and an important part of the“China Water Tower,”the Sichuan part of the Yellow River Basin plays an important role in ecological management of the whole basin.Therefore,based on the present situation and the rich experience of ecological protection and high-quality development in the Yellow River Basin in Sichuan,this study puts forward a feasible plan for long-term ecological management of the Yellow River Basin in Sichuan.
基金supported by The National Key Research and Development Program of China(2023YFC3208605).
文摘Understanding the influencing factors and the evolving trends of the Water-Sediment Regulation System(WSRS)is vital for the protection and management of the Yellow River.Past studies on WSRS have been limited in focus and have not fully addressed the complete engineering control system of the basin.This study takes a holistic view,treating sediment management in the Yellow River as a dynamic and ever-evolving complex system.It merges concepts from system science,information theory,and dissipative structure with practical efforts in sediment engineering control.The key findings of this study are as follows:between 1990 and 2019,the average Yellow River Sediment Regulation Index(YSRI)was 55.99,with the lowest being 50.26 in 1990 and the highest being 61.48 in 2019;the result indicates that the WSRS activity decreased,yet it fluctuated,gradually approaching the critical threshold of a dissipative structure.
文摘Based on site condition of Yellow River Delta,the significance,designing,planting and maintenance management of garden groundcover were analyzed in a systematic way,which provided reference for urban greening in the region.
基金supported by Natural Science Foundation of China-Shandong Joint Fund for Marine Science Research Centers (Grant No.U1406403)the Sea Area Use Fund of Jiangsu Province (Environmental Capacity for the Key Coast of Jiangsu Province)+1 种基金the National Natural Science Foundation of China (No.41340046)Modeling work was completed at the Computing Services Center,Ocean University of China
文摘Guan River Estuary and adjacent coastal area(GREC) suffer from serious pollution and eutrophicational problems over the recent years.Thus,reducing the land-based load through the national pollutant total load control program and developing hydrodynamic and water quality models that can simulate the complex circulation and water quality kinetics within the system,including longitudinal and lateral variations in nutrient and COD concentrations,is a matter of urgency.In this study,a three-dimensional,hydrodynamic,water quality model was developed in GREC,Northern Jiangsu Province.The complex three-dimensional hydrodynamics of GREC were modeled using the unstructured-grid,finite-volume,free-surface,primitive equation coastal ocean circulation model(FVCOM).The water quality model was adapted from the mesocosm nutrients dynamic model in the south Yellow Sea and considers eight compartments:dissolved inorganic nitrogen,soluble reactive phosphorus(SRP),phytoplankton,zooplankton,detritus,dissolved organic nitrogen(DON),dissolved organic phosphorus(DOP),and chemical oxygen demand.The hydrodynamic and water quality models were calibrated and confirmed for 2012 and 2013.A comparison of the model simulations with extensive dataset shows that the models accurately simulate the longitudinal distribution of the hydrodynamics and water quality.The model can be used for total load control management to improve water quality in this area.
基金Supported by the National Basic Research Program of China ("973" Project) (Grant Nos. 2006CB403404, 2006CB403405)the National Natural Science Foundation of China (Grant No. 50721006)the National Science Research for the 11th Five-Year Plan (Grant No. 2006BAB06B06)
文摘The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cycle process and its analysis object is evapotranspiration (ET), a main consumption component in the water resources dynamic transformation process. A case study was undertaken by selecting soil water resources in the Yellow River Basin and employing the WEP-L distributed hydrological model with physics mechanisms. This paper discusses the amount and consumption efficiency of soil-water resources according to completely simulated results of water cycle elements throughout the basin. Results indicate that it is important for the ET-based modern water resources management strategy to alleviate water resources scarcity because it may not only avoid unused water wasting but also improve water use efficiency. Therefore, an ET-based modern water resources management scheme is a good complement to the traditional water resources demand management system.
