Leaders study tour briefing r speed

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Leaders study tour briefing r speed

  1. 1. River Health and Environmental Flows inChina – Study Tour IntroductionRobert Speed, Team Leader罗伯特·斯皮德 项目主管
  2. 2. Study tour themes• River health – Monitoring, assessment and reporting on river condition – Biological monitoring, in addition to traditional water quality and hydrology monitoring What to monitor? How to build a monitoring system? How to use the information in management? Reporting?
  3. 3. Study tour themes• Environmental flows – Flows required to sustain important ecosystem assets and values – More than just minimum flows: the size, frequency, duration, timing, and variability of the flow regime What assets/services are important? How to decide which flows are important? How to provide them?
  4. 4. Australian Water Institutions• State Government Water Agencies – Primary responsibility for water resources management: – water allocation plans; – licensing: abstraction and pollution discharge – monitoring Example: Queensland Department of Environment and Resource Management (DERM)
  5. 5. Australian Water Institutions• National Government Water Agencies – Department of Environment, Sustainability, Water, Population and Communities: coordinate national water reform agenda; responsibilities for major water programs (water buyback; infrastructure upgrades) – Murray Darling Basin Authority: prepare whole-of-basin plan; define sustainable diversion limits – National Water Commission: monitor and audit implementation of the National Water Initiative; Framework for assessment of river and wetland health – Commonwealth Scientific and Industry Research Organisation
  6. 6. Project objective 项目目标• Trial international approaches to river health assessment and environmental flows assessment 采用国际通用的评估方法评估河流 健康与环境流量• Consider application to national-level policies 将改方法在全国范围内推广
  7. 7. Liao River Basin - River health Yellow River Basin -E-flows -River healthPearl River Basin- River healthassessment
  8. 8. Project timeline Agreement Fieldwork Presentation Final workshop on scope and and data of pilot results and final report objectives collection Capacity Data analysis Distil Further building lessons work??? Inception Project wrap phase项目启 Pilot study phase 项目工作阶段 up项目收尾 动阶段 阶段August December December July 2009 2009 2010 2011
  9. 9. River health assessment methodology河流健康评估方法Underlying philosophy 基本原理1. River health is important河流健康很重要2. River health is much more than the quality of the water河 流健康不仅仅包括水质达标3. Biological indicators can be more sensitive to changes in river condition生物指标更易于反映河流健康状况4. Biological monitoring programs can provide valuable support to management生物监测可以为流域管理者提供 有价值的帮助5. Monitoring should focus on assets of importance监测范 围应该集中在重要的河流资产
  10. 10. River health assessment methodology河流健康评估方法Objective 目标• Ability to compare sites against each over 不同评估地 点之间存在可比性• Understand likely cause of changes in river health 理解 影响河流健康的因素• Assess effectiveness of management responses评估管 理效率• Report on river health提供河流健康报告
  11. 11. River health assessment methodology河流健康评估方法Key issues 主要问题• What to measure? 需要评估的内容 – Many indicators available: which are relevant? 有许 多不同的指标可供评估,应当选取哪种?• What do the results mean? 评估结果的意义 – What is a good score, what is a bad score? 何为优良 的评估结果?何为不达标的评估结果?• How to use the results? 如何应用评估结果
  12. 12. Important steps 项目发展的重要步骤1 Identify the objectives the program 确定项目目标 Identify the objectives of of the program 确定项目目标2 Identify suitable measures (indicators) of drivers, stressors and response 确认合适的驱使因素,压力源和反应的指标3 Develop conceptual models linking range of drivers to potential impacts 联系驱使因素和潜在影响开发概念模型4 River Classification to identify homogenous „river types‟ 河流分类从而确认相同的河流类型5 Trial sampling program and refinement of indicators 采样试验,完善指标6 Selection of suitable benchmarks for ecological indicators 选取合适的生态指标的基准7 Reporting & Communication 报告和交流8 Implement management actions to address priority areas/threats 执行管理行动,明确地区/威胁的优先顺序
  13. 13. Building a river health monitoring program构建河流健康评估项目 Proof of Pilot Routine concept概 studies试 monitoring 念论证 点研究 例行监测
  14. 14. Objectives of the pilot study 试点研究目标• Demonstrate a method for developing a river monitoring program阐述开展一个河流健康监测项目的方 法• Undertake a preliminary assessment of the condition of the pilot site 开展试点河流健康初步评估• Only a demonstration: limits on the results
  15. 15. Preliminary steps 评估步骤• Agree on approach to pilot 确定评估方法• Agree on objectives – sensitive indicators due to high conservation value 确 定评估目标• Identify sites确定评估试点• Determine data to be collected确定采集数据类型
  16. 16. Fieldwork to collect samples Macroinvert Channel condition fish Macrophytes diatom
  17. 17. Phylum Arthropoda Collation of data Mollusca Mollusca Mollusca Mollusca Mollusca Mollusca Mollusca Class Crustacea Bivalvia Gastropoda Gastropoda Bivalvia Gastropoda Gastropoda Gastropoda Decapoda Mytiloida编号 Order Atyidae Mytilidae Viviparidae Lymnaeidae Corbiculidae Lymnaeidae Valvatidae Melaniidae编号 Family Caridina Limnoperna Bellamya Radix corbicula physa Valvata Semisulcospira编号 Genera lacustris aeruginosa Radixswinboei fluminea编号 Species 米虾属 淡水壳菜 铜锈 椭圆 河蚬 膀胱螺 盘螺 短沟卷编号 Species name_Chinese 平度村 0 0 0 1 0 0 0 0No.1No.2 龙江 0 0 0 0 3 0 0 0 富罗 71 1 1 27 7 1 4 38No.3 黄姚 110 0 4 0 12 0 0 0No.4 下福水电站 0 0 0 4 1 0 6 11No.5 siqinjiang2 7 23 0 0 43 0 6 57No.6 红花镇siqinjiang1 0 0 0 3 5 32 0 0No.7 昭平水电站 2 216 1 1 0 0 0 2No.8 恭城水文站 0 0 5 25 0 0 0 31No.9 龙岭 10 0 3 6 4 0 52 28No.10 荔浦水文站 138 0 0 0 0 11 0 0No.11 念村 0 0 0 0 0 0 0 0No.12 阳朔水文站 27 0 0 0 0 0 0 1No.13No.14 遇龙河 32 0 1 0 0 0 0 17 冠岩 10 0 1 1 11 1 4 7No.15 潮田河 1 0 0 3 0 0 0 0No.16 新寨 0 0 0 0 0 0 0 0No.17 桂林水文站 47 0 3 8 1 3 0 0No.18 兰田 0 0 0 0 0 0 0 0No.19 东江 0 0 0 0 0 0 9 0No.20 灵渠 37 0 9 8 6 2 7 1No.21 大榕江 10 0 6 9 1 0 0 0No.22 杉木河(猫儿山) 0 0 0 0 0 0 0 0No.23 六洞河 0 1 0 0 0 0 0 8No.24 乌龟江 0 0 0 0 0 0 0 0No.25
  18. 18. Testing indicators against a disturbancegradient 测试指标与干扰变化Ecological health indicator生态健康参数指标 Reference values 参数值 Low低 High高 Disturbance gradient 干扰变化
  19. 19. Classification 河流分类 Different types of river will: 不同的河流将 • Require different indicators 要求不同的指示物 • Have different targets 有不同的目标 Presentation Heading
  20. 20. Weighting indicator scores Freq. All sites – all years,所有点,所有年 (# obs.),监测频率Reference sites Single site, Standard– all years,参考点,所有年 to achieve values – report year,单 50th 点,报告年 %’ile 95th %’ile 80th %’ile 1 0 Concentration,浓度 (reference),参考点 (worst case),最差 Convert all values to common scale to allow comparison转化所有结果 使其成具有可比性 Compare values against:结果比较 - other sites in study; other studies 与其他点进行比较,与其他研究结 果进行比较 - national standards; international standards国家标准,国际标准
  21. 21. Reporting on river health
  22. 22. Reaches and Assets River channel 4 3 Delta 2 wetlands Dongping Lake 1 ZhengzhouMengjin Kaifeng wetlandswetlands wetlands
  23. 23. Start with objectives (from YRCC)• 1 × Ultimate target – “Keeping the Yellow River Healthy”• 4 × Criteria (“the 4-nos”) – No embankment breaching – No river running dry – No water pollution beyond standard – No riverbed rising further
  24. 24. Establish a framework (from YRCC) Indicator groups“Healthy Indicators of the Yellow River”• Flow continuity Hydrology• Channel configuration for water and Geomorphology sediment transportation Water quality• Water quality standard• River ecosystem Ecology• Water supply capacity Social-economic
  25. 25. River Health Index Social/Economic Environmental Indicators… Ecology Physical form Hydrology Water quality Wetland vegetation Fish (remote sensing) Invertebrates Primary Vegetation productivity Survey and Hydraulic modelling habitatPresentation HeadingPresentation Heading
  26. 26. Sediment flushing flow (flow exceeded 5% of the time) Jun - Jul - Aug - Sep Target 3,500 m3/s 4,000sediment regulation season daily Exceeded 5% of time - water- 3,000 First releases discharge (m 3/s) Huayuankou 2,000 Sunkou Huayuankou 1,000 Lijin 0 Xiaolangdi Dam
  27. 27. No drying-up Cumulative annual days of cease to f low Lijin Annual peak cease to f low spell duration 350Days of cease to flow 300 250 200 150 100 50 0 Xiaolangdi Dam
  28. 28. Trend in water quality (Grade III target) Annual - Proportion of High flow - Proportion of Low flow - Proportion of months target achieved months target achieved months target achieved 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4 0.6 0.8 1.01994 1994 19941995 1995 19951996 1996 19961997 1997 19971998 1998 19981999 1999 19992000 2000 20002001 2001 20012002 2002 20022003 2003 20032004 2004 20042005 2005 20052006 2006 20062007 2007 20072008 2008 20082009 2009 2009 Huayuankou
  29. 29. Channel capacity 9,000 8,000 Target 7,000 Huayuankou bankf ull capacity (measured)Discharge (m 3/s) 6,000 Lijin bankf ull capacity 5,000 (Ru et al., 2003) 4,000 Huayuankou f lood 3,000 season average discharge 2,000 5-year moving 1,000 average 0 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005
  30. 30. Additional indicators • Socio-economic • BiologicalPresentation Heading
  31. 31. River Health Index Social/Economic Environmental Indicators… Ecology Physical form Hydrology Water quality Wetland vegetation Fish (remote sensing) Invertebrates Primary Vegetation productivity Survey and Hydraulic modelling habitatPresentation HeadingPresentation Heading
  32. 32. Environmental flow requirements • Consolidation of existing studies, together with expert opinion • Identify flow requirements for the key assets (wetlands, delta), focussed on: – Fish – Vegetation – Birds • Hydrological model to assess capacity to achieve recommended flowsPresentation Heading
  33. 33. Step 3: Defining environmental flow requirements Determining important flow components Bankfull flows and overbank floods: channel forming flows High flow pulses: trigger breeding and migration Low flows: Maintain habitat
  34. 34. Conclusions 总结 (1)• Need to distinguish between:需要区分以下工作 – Work to develop a monitoring program 如何设计开展监测工作 – Routine monitoring 例行监测工作• Small step on path to developing monitoring program 设计开展监 测工作的一些步骤 – Limited reference sites/samples 缩小参照点范围 – quality of results will improve over time 评估项目的设计质量将 逐步完善
  35. 35. Conclusions 总结(2)• Many different policy decisions relating to:许多不同政策制定均与以 下各因素相关: – What is an acceptable level of health 河流健康的可接受底线 – How information should be presented 信息的表现方式 – Suitability of different methods and indicators 各种不同方法及 评估指标的适用性• Suitability will depend on: 这些适用性主要由以下各因素决定: – Objectives 目标 – Resources 资源 – Capacity 能力
  36. 36. Conclusions 总结• Importance of making informed decisions, that ensure we get the best possible outcomes from our rivers – Awareness of what is important in the river – Understanding the flow requirements of the ecosystem – Understanding the health of our river system – Conscious decisions about what is acceptable and what is not; and what we will do about it

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