河流健康项目 中国(Xibeidou 20110228)mep

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河流健康项目 中国(Xibeidou 20110228)mep

  1. 1. 中澳环境发展项目 ACEDP 中国河流健康研究进展 China’s Research program on River Health 席北斗 Dr. Xi Beidou 张 远 Dr. ZHANG YUAN Dr. Xiaodong Qu Chinese Research Academy of Environmental Sciences (CRAES)
  2. 2. 汇报内容 Outline1.  现在研究工作和结果 Current research and results2. 关注问题 Key issues for discussion3. 结论 Conclusions
  3. 3. 1 现在研究工作和结果Current works and Results
  4. 4. 1、River health is very important for Water Environment Improvementin China.河流生态系统健康是中华民族生存和文明传承的基石。2、 Six main river basins were considered in Chinese National keyspecial project “water pollution control and treatment” such asSonghuajiang, Liaohe, Haihe, Huaihe, Dongjiang, south-to-north waterdivision project, and other special rivers.“河流”主题“十一五”期间共设置了6个项目:松花江、辽河、海河、淮河、东江、南水北调、特殊类型河流3、During the 12th five plan period (2011-2015), the centre gov. willprovide 1.5 billion RMB to support the river projectsThis will be the foundation of river ecosystem restoration河流主题“十二五”科研经费15.35亿元,工程投资超过150.00亿元。
  5. 5. Study main Pilot River basins in China 松花江流域 辽河流域 Sohuajiang Liaoriver basin basin 黑河Heihe river basin 海河流域 洱海 Hairiver Erhai Lake Basin 淮河流域 滇池 Huairiver Dianchi 东江 Basin Lake Dongjian g river 巢湖 basin Chao lake
  6. 6. Pilot study to asses river health in the Taizi River, Liao River Basin North east of China-The fifth biggest watershed in ChinaMain threatens (面临的胁迫) Farmland Urbanization•  Water resource conflict between the upper and middle part as consequence of construction of the Guanyinge Reservoir•  Sand extraction has caused habitat destruction
  7. 7. Steps to Assess River Health (河流健康评估的主要程序)1.  Establish reference health conditions of catchment and river确定所在流域的健康河流参照状态2. Classification and Construction of conceptual models(分类并 建立概念模型)3. Identification of stressors and indicators(辨识驱动因素和指标)4. Sampling procedures(样品分析程序)5. Quantification - stressors & indicators(确定驱动因素和指标)6. Target and threshold setting(目标和临界值确定)7. Scoring for Assessment and reporting(评价报告打分)8. Connecting to the management(用于管理)
  8. 8. 2.关注的内容Key points for discussion
  9. 9. Establish reference healthconditions of catchment and river is very important
  10. 10. Approaches to Establishing Reference Conditions for Catchment and River health 候选参照河流确定健康河流的参照状态法参照状态法(reference river approach) :根据参照河流标准全流域筛选, 要求流域内参照河流占全体河流10%以上,进行采样和历史数据统计 分析,取上25%点位对应状态作为健康河流参照状态,参照河流选择标 准见后面! (a) 参照河流 Reference rivers 上25个百分点 Upper 25th percentile 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
  11. 11. Establish reference conditions Criteria for Catchment and River Candidate Reference Sites候选参照河流的标准 Indicator指标 ! conditions High ! low ! high ! low !Natural vegetation cover, i.e., > 65% > 50% Riparian areas in catchment (% of stream ! ! > 60%! > forest/grassland/wetlan length)生态岸带在流域中的%( 6 d自然植被如森林、 占河岸长度)! 0 草地、湿地(流域 % 中%)Minimum Riparian width (m) > 50 m > 50 m Minimum overall habitat score (% of ! ! > 70%! >最小的岸带宽度! maximum)最小全部栖息地得分! 7 0 %Agriculture农业 (% in < 20% < 30% Urban land城市用地(% in catchment) ! ! <15%! <15% ! catchment)Pesticide impacts none! none! Channel alteration in catchment none! none !农药等有毒有害物影响 河道人工变道集约化养殖(围网养殖) !Point source discharges (% of <5%! 5%! Net loss or degradation of wetlands(% in <15%! <15% ! flow at 7Q10) catchment)点源排放(占流量的%)! 湿地消失或破坏率
  12. 12. 参照河流确定的综合评价方法 (Assessment method for reference Catchment and River ) A类:流域和河流生态完整性好(Excellent conditions meet all set 原始状态! ecosystem health, natural undisturbed Watershed and River Natural conditions B类:优良的流域和河流状态(Good Conditions almost meet all set ecosystem health 健康 生物状态! 可持续 C类:临界的流域和河流状态Bottom 流域适宜 Identify conditions Health line conditions, criteria threshold 状态! values阈值criteria threshold D类:低于临界的流域和河流状态( Modified :values Conditions meet some of the set ecosystem 不健康 health, but most are impacted E类:差的流域和河流状态Poor conditions are 非可持续 No living unlikely to meet ecosystem health F类:极差的流域和河流状态! 人为干扰! Seriously (Bad conditions do not meet any 无干扰! impacted ecosystem health disturbed by No disturbed human 干扰严重! 采用基于集对分析的模糊综合评价模型(SPA-FCE)进行综合评价,确定流域和河流所处状态。 !
  13. 13. Indicator and criteria for Catchment and River A,B,C,D,E,F Sites Indicator and criteria for Candidate Reference Sites level Natural Minimum Agriculture (% Point source Minimum Urban land vegetation bank zone in catchment) discharges (% of overall (% in (%) width (m) flow at 7Q10) habitat catchment) score (% of maximum)A(Superior ) 80% 50m <10% 0 >90% 0B (least 65% 50m <20% <5% >70% <15%impacted )C (baseline) 50% 50m <30% <5% >70% <15%D (modified) 40% 30m <40% <10% >60% <20%E (poor) 30% 20m <50% <10% >50% <30%F (bad) 20% 10m <70% <10% >40% <30%
  14. 14. 3.结论 Conclusions
  15. 15. Based on the monitoring data of rivers in thedifferent catchment , reference conditions ofcatchment River health can be established bydistribution approach( for all seasons, eachseason, and each water period)
  16. 16. Thanks !

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