Focusing on water eco-environment problems and sustainably promoting ecological conservation and restoration of the Yangtze River
-
摘要: 加强长江生态环境保护,事关长江流域社会经济发展大局,不仅是维护长江流域生态环境安全的客观要求,也是落实中央重大政策的重要内容。依托长江生态环境保护修复联合研究项目(第一期),对长江流域水生态环境存在的问题进行诊断,并剖析成因,提出强化长江流域水生态环境保护修复的政策建议。长江流域水生态环境问题主要表现为资源开发导致河流连通性下降,湖泊湿地面积萎缩;污染物排放强度仍然较大,汛期水质恶化现象普遍;水生态系统退化,湖泊水华、长江口赤潮频发,渔业资源量下降,珍稀特有水生生物保护任重道远;水环境风险问题突出,突发性水污染事故频发。分析其成因主要包括:城市化、人口集聚进程加快与环境基础设施短板存在矛盾,生态环境治理协同性仍然不足,国土空间管控不到位,气候变化带来新挑战。据此提出如下对策建议:1)在流域水平上强化国土空间管控,落实“三线一单”;2)补齐基础设施短板,深化污染防治;3)推进“三水”统筹,持续开展生态修复;4)加强政策协同,推进多元共治;5)强化制度创新,提升科技支撑能力。为持续打好长江保护修复攻坚战,推动长江经济带成为我国生态优先绿色发展主战场提供参考。Abstract: Strengthening the protection of the eco-environment of the Yangtze River is related to the overall situation of socio-economic development in the Yangtze River Basin, which is not only an objective requirement for maintaining the eco-environmental safety of the Yangtze River Basin, but also an important part of implementing major central policies. Relying on the first phase of the joint research project on the eco-environmental conservation and restoration of the Yangtze River, the problems existing in the water eco-environment of the basin were diagnosed, the causes were analyzed, and the policy suggestions for strengthening the conservation and restoration of the water eco-environment were put forward. The main water eco-environmental problems in the Yangtze River Basin included: the decline of the river connectivity and the shrinking of the area of lakes and wetlands caused by the development of resources in the basin; the relatively large intensity of pollutant discharge, and the common deterioration of water quality during the flood season common; the degradation of water ecosystems, the frequent occurrence of lake blooms and red tides in the Yangtze River estuary and the decline in fishery resources, which meant a long way to go with the protection of rare and unique aquatic organisms; the prominent water environmental risk problems, and the frequent occurrence of sudden water pollution accidents. The causes of water eco-environmental problems in the Yangtze River Basin mainly included: the contradiction between the accelerated process of urbanization and population agglomeration and the shortcoming of the environmental infrastructures; the synergy of eco-environmental governance was still insufficient; the control and governance of territorial space was not in place; and the climate change brought new challenges. Accordingly, some countermeasures and suggestions were proposed, including strengthening territorial space management and control at the watershed level and implementing "Three Lines and One List" policy; making up for the shortcomings of infrastructure and deepening pollution prevention and control; promoting the overall planning of "Three Waters" and continuing to carry out ecological restoration; strengthening policy coordination and promoting diversified co-governance; strengthening institutional innovation and enhancing scientific and technological support capabilities, in order to provide a reference for continuing to fight the battle of protection and restoration of the Yangtze River, and for promoting the Yangtze River Economic Belt to become the main battlefield of China′s ecological priority and green development.
-
表 1 长江经济带各省(市)国控监测断面TP平均浓度
Table 1. Average TP concentration of national controlled monitoring sites in each province in the Yangtze River Economic Belt
mg/L 省(市) 2016年 2017年 2018年 2019年 2020年 上海 0.16 0.14 0.12 0.13 0.11 江苏 0.13 0.12 0.12 0.11 0.10 浙江 0.12 0.11 0.09 0.11 0.10 安徽 0.10 0.10 0.09 0.07 0.07 江西 0.08 0.09 0.09 0.07 0.06 湖北 0.10 0.09 0.08 0.07 0.07 湖南 0.07 0.07 0.07 0.06 0.05 重庆 0.11 0.11 0.09 0.08 0.07 四川 0.14 0.12 0.09 0.09 0.07 贵州 0.13 0.10 0.08 0.07 0.06 云南 0.16 0.16 0.15 0.11 0.10 区域 0.11 0.10 0.09 0.08 0.07 表 2 长江经济带各省(市)国控监测断面Ⅰ类~Ⅲ类水质断面占比
Table 2. Proportion of national controlled monitoring sites with water quality category Ⅰ-Ⅲ in each province in the Yangtze River Economic Belt
% 省(市) 2016年 2017年 2018年 2019年 2020年 上海 75 90 90 90 100 江苏 61 61 61 70 71 浙江 74 93 89 93 96 安徽 72 72 71 81 84 江西 82 77 79 82 89 湖北 82 84 86 85 90 湖南 79 78 79 82 85 重庆 93 88 90 100 100 四川 72 76 89 98 99 贵州 86 81 95 95 97 云南 49 45 55 55 64 区域 76 77 81 84 88 -
[1] 陈进, 刘志明.近20年长江水资源利用现状分析[J]. 长江科学院院报,2018,35(1):1-4. doi: 10.11988/ckyyb.20171317CHEN J, LIU Z M. Analysis of water resources utilization in the Changjiang River Basin in recent two decades[J]. Journal of Yangtze River Scientific Research Institute,2018,35(1):1-4. doi: 10.11988/ckyyb.20171317 [2] 柳林云, 丁毅.长江流域水力资源与水电规划[J]. 人民长江,2013,44(10):69-71. doi: 10.3969/j.issn.1001-4179.2013.10.018LIU L Y, DING Y. Analysis on hydropower resources in Yangtze River Basin and hydropower generation planning[J]. Yangtze River,2013,44(10):69-71. doi: 10.3969/j.issn.1001-4179.2013.10.018 [3] 长江.长江委发布2001年《长江流域及西南诸河水资源公报》[J]. 人民长江,2003,34(1):21. [4] 谢平, 陈进, 于秀波, 等. 三峡工程对长江中下游湿地生态系统的影响评估[M]. 武汉: 长江出版社, 2018. [5] 吴舜泽, 王东, 姚瑞华.统筹推进长江水资源水环境水生态保护治理[J]. 环境保护,2016,44(15):16-20.WU S Z, WANG D, YAO R H. Overall planning to promote the Yangtze River protection of water environment[J]. Environmental Protection,2016,44(15):16-20. [6] 张慧, 高吉喜, 乔亚军.长江经济带生态环境形势和问题及建议[J]. 环境与可持续发展,2019,44(5):28-32.ZHANG H, GAO J X, QIAO Y J. Current situation, problems and suggestions on ecology and environment in the Yangtze River Economic Belt[J]. Environment and Sustainable Development,2019,44(5):28-32. [7] 张莹莹, 蔡晓斌, 杨超, 等.1974—2017年洪湖湿地自然保护区景观格局演变及驱动力分析[J]. 湖泊科学,2019,31(1):171-182. doi: 10.18307/2019.0116ZHANG Y Y, CAI X B, YANG C, et al. Driving force analysis of landscape pattern changes in Honghu Wetland Nature Reserve in recent 40 years[J]. Journal of Lake Sciences,2019,31(1):171-182. doi: 10.18307/2019.0116 [8] 秦茜, 王继全, 易程程, 等.新形势下洪湖水生态环境现状及修复对策研究[J]. 长江技术经济,2020,4(4):41-44.QIN Q, WANG J Q, YI C C, et al. Research on the status quo of Honghu Lake water ecological environment and remediation countermeasures under new situation[J]. Technology and Economy of Changjiang,2020,4(4):41-44. [9] 段亮, 宋永会, 张临绒, 等.辽河保护区河岸带生态恢复技术研究[J]. 环境工程技术学报,2014,4(1):8-12. doi: 10.3969/j.issn.1674-991X.2014.01.002DUAN L, SONG Y H, ZHANG L R, et al. The ecological restoration technologies of riparian area in Liaohe Conservation Area[J]. Journal of Environmental Engineering Technology,2014,4(1):8-12. doi: 10.3969/j.issn.1674-991X.2014.01.002 [10] 陈雷.落实绿色发展理念 全面推行河长制河湖管理模式[J]. 河北水利,2017(3):6-7. doi: 10.3969/j.issn.1004-7700.2017.03.003 [11] 殷守敬, 吴传庆, 乐松, 等.长江干流岸线类型遥感监测分析[J]. 人民长江,2020,51(11):16-21.YIN S J, WU C Q, LE S, et al. Remote sensing monitoring and analysis of shoreline types of Yangtze River[J]. Yangtze River,2020,51(11):16-21. [12] 段学军, 邹辉, 王晓龙.长江经济带岸线资源保护与科学利用[J]. 中国科学院院刊,2020,35(8):970-976.DUAN X J, ZOU H, WANG X L. Protection and scientific utilization of waterfront resources in the Yangtze River Economic Belt[J]. Bulletin of Chinese Academy of Sciences,2020,35(8):970-976. [13] 陈进.长江流域生态红线及保护对象辨识[J]. 长江技术经济,2018,2(1):30-36. [14] 刘录三, 黄国鲜, 王璠, 等.长江流域水生态环境安全主要问题、形势与对策[J]. 环境科学研究,2020,33(5):1081-1090.LIU L S, HUANG G X, WANG F, et al. Main problems, situation and countermeasures of water eco-environment security in the Yangtze River Basin[J]. Research of Environmental Sciences,2020,33(5):1081-1090. [15] 国家统计局. 中国统计年鉴(2012—2020年)[M/OL]. 北京: 中国统计出版社. http://www.stats.gov.cn/tjsj/ndsj/. [16] 李曼, 敬红, 贾曼, 等.2016—2019年长江经济带总磷污染及治理特征分析[J]. 中国环境监测,2021,37(5):94-102.LI M, JING H, JIA M, et al. Analysis of total phosphorus pollution and treatment characteristics in the Yangtze River Economic Belt during 2016-2019[J]. Environmental Monitoring in China,2021,37(5):94-102. [17] 秦延文, 马迎群, 王丽婧, 等.长江流域总磷污染: 分布特征·来源解析·控制对策[J]. 环境科学研究,2018,31(1):9-14.QIN Y W, MA Y Q, WANG L J, et al. Pollution of the total phosphorus in the Yangtze River Basin: distribution characteristics, source and control strategy[J]. Research of Environmental Sciences,2018,31(1):9-14. [18] 陈善荣, 何立环, 张凤英, 等.2016—2019年长江流域水质时空分布特征[J]. 环境科学研究,2020,33(5):1100-1108.CHEN S R, HE L H, ZHANG F Y, et al. Spatiotemporal characteristics of surface water quality of the Yangtze River Basin during 2016-2019[J]. Research of Environmental Sciences,2020,33(5):1100-1108. [19] 邱凉, 罗小勇, 程红光.长江流域大尺度空间非点源污染负荷研究[J]. 人民长江,2011,42(18):81-84. doi: 10.3969/j.issn.1001-4179.2011.18.022QIU L, LUO X Y, CHENG H G. Research on large-scaled spatial non-point source pollution load of the Yangtze River Basin[J]. Yangtze River,2011,42(18):81-84. doi: 10.3969/j.issn.1001-4179.2011.18.022 [20] 戴明龙, 张明波.长江流域径流时空分布及变化规律研究[J]. 人民长江,2013,44(10):88-91. doi: 10.3969/j.issn.1001-4179.2013.10.023DAI M L, ZHANG M B. Research on temporal and spatial distribution law of runoff in Yangtze River Basin[J]. Yangtze River,2013,44(10):88-91. doi: 10.3969/j.issn.1001-4179.2013.10.023 [21] 生态环境部. 2020全国地表水水质月报(1月至12月)[A/OL]. [2021-12-10]. https://www.mee.gov.cn/hjzl/shj/dbsszyb/. [22] 陈大庆, 段辛斌, 刘绍平, 等.长江渔业资源变动和管理对策[J]. 水生生物学报,2002,26(6):685-690. doi: 10.3321/j.issn:1000-3207.2002.06.018CHEN D Q, DUAN X B, LIU S P, et al. On the dynamics of fishery resources of the Yangtze River and its management[J]. Acta Hydrobiologica Sinica,2002,26(6):685-690. doi: 10.3321/j.issn:1000-3207.2002.06.018 [23] 易伯鲁 余志堂 梁秩炎 等著. 葛洲坝水利枢纽与长江四大家鱼[M]. 武汉: 湖北科学技术出版社, 1988. [24] 王海华, 冯广朋, 吴斌, 等.长江水系中华绒螯蟹资源保护与可持续利用管理对策研究[J]. 中国农业资源与区划,2019,40(5):93-100.WANG H H, FENG G P, WU B, et al. Research on management and countermeasures of sustainable utilization of eriocheir sinensis of Yangtze population[J]. Chinese Journal of Agricultural Resources and Regional Planning,2019,40(5):93-100. [25] 陈大庆.长江渔业资源现状与增殖保护对策[J]. 中国水产,2003(3):17-19. doi: 10.3969/j.issn.1002-6681.2003.03.013 [26] 水利部太湖流域管理局. 太湖健康状况报告(2008—2018年)[R]. 上海: 水利部太湖流域管理局. [27] 王孝程, 解鹏飞, 李晴, 等.长江口海域生态环境状况及保护对策[J]. 环境科学研究,2020,33(5):1197-1205.WANG X C, XIE P F, LI Q, et al. Ecological environment of the Yangtze Estuary and protection countermeasures[J]. Research of Environmental Sciences,2020,33(5):1197-1205. [28] 杨颖, 徐韧.近30 a来长江口海域生态环境状况变化趋势分析[J]. 海洋科学,2015,39(10):101-107. doi: 10.11759/hykx20141124001YANG Y, XU R. The environment variation trend in the Changjiang River Estuary in the past 30 a[J]. Marine Sciences,2015,39(10):101-107. doi: 10.11759/hykx20141124001 [29] 吴金明, 王成友, 张书环, 等.从连续到偶发: 中华鲟在葛洲坝下发生小规模自然繁殖[J]. 中国水产科学,2017,24(3):425-431. doi: 10.3724/SP.J.1118.2017.17095WU J M, WANG C Y, ZHANG S H, et al. From continuous to occasional: small-scale natural reproduction of Chinese sturgeon occured in the Gezhouba spawning ground, Yichang, China[J]. Journal of Fishery Sciences of China,2017,24(3):425-431. doi: 10.3724/SP.J.1118.2017.17095 [30] ZHANG H, JARIĆ I, ROBERTS D L, et al. Extinction of one of the world's largest freshwater fishes: lessons for conserving the endangered Yangtze fauna[J]. Science of the Total Environment,2020,710:136242. doi: 10.1016/j.scitotenv.2019.136242 [31] 王丁, 郝玉江.白鱀豚“功能性灭绝”背后的思考[J]. 生命世界,2007(11):44-47. [32] 赵修江, 王丁, BARLOW J, 等. 长江中下游长江江豚种群数量研究[C]//野生动物生态与资源保护第四届全国学术研讨会论文集. 北京: 中国动物学会兽类学分, 2007. [33] 曹国志, 於方, 王金南, 等.长江经济带突发环境事件风险防控现状、问题与对策[J]. 中国环境管理,2018,10(1):81-85.CAO G Z, YU F, WANG J N, et al. Situation, problems and countermeasures of risk prevention and control of environmental emergencies in the Yangtze River Economic Belt[J]. Chinese Journal of Environmental Management,2018,10(1):81-85. [34] 国家统计局. 中国统计年鉴(2006—2020年)[M/OL]. 北京: 中国统计出版社. http://www.stats.gov.cn/tjsj/ndsj/. [35] 周夏飞, 曹国志, 於方, 等.长江经济带突发水污染风险分区研究[J]. 环境科学学报,2020,40(1):334-342.ZHOU X F, CAO G Z, YU F, et al. Risk zoning of acute water pollution in the Yangtze River Economic Belt[J]. Acta Scientiae Circumstantiae,2020,40(1):334-342. [36] 杨荣金, 孙美莹, 傅伯杰, 等.长江流域生态系统可持续管理策略[J]. 环境科学研究,2020,33(5):1091-1099.YANG R J, SUN M Y, FU B J, et al. Sustainable management strategy of ecosystems in the Yangtze River Basin[J]. Research of Environmental Sciences,2020,33(5):1091-1099. [37] 金声甜, 肖文海, 杨胜苏, 等.长江经济带土地利用变化及其生态系统响应[J]. 经济地理,2020,40(7):166-173.JIN S T, XIAO W H, YANG S S, et al. Land use change and its ecosystem response in the Yangtze River Economic Belt[J]. Economic Geography,2020,40(7):166-173. [38] 祁帆, 贾克敬, 王葳.长江经济带国土空间开发利用问题与对策研究[J]. 环境工程技术学报,2016,6(6):621-628. doi: 10.3969/j.issn.1674-991X.2016.06.089QI F, JIA K J, WANG W. Study on problems and countermeasures of land space development and utilization in the Yangtze River Economic Belt[J]. Journal of Environmental Engineering Technology,2016,6(6):621-628. doi: 10.3969/j.issn.1674-991X.2016.06.089 [39] CUI M, GUO Q J, WEI R F, et al. Anthropogenic nitrogen and phosphorus inputs in a new perspective: environmental loads from the mega economic zone and city clusters[J]. Journal of Cleaner Production,2021,283:124589. doi: 10.1016/j.jclepro.2020.124589 [40] GU B J, JU X T, CHANG J, et al. Integrated reactive nitrogen budgets and future trends in China[J]. PNAS,2015,112(28):8792-8797. doi: 10.1073/pnas.1510211112 [41] LIN T, WANG J, BAI X M, et al. Quantifying and managing food-sourced nutrient metabolism in Chinese cities[J]. Environment International,2016,94:388-395. doi: 10.1016/j.envint.2016.04.036 [42] CUI S H, SHI Y L, MALIK A, et al. A hybrid method for quantifying China's nitrogen footprint during urbanisation from 1990 to 2009[J]. Environment International,2016,97:137-145. doi: 10.1016/j.envint.2016.08.012 [43] DENG C N, LIU L S, PENG D Z, et al. Net anthropogenic nitrogen and phosphorus inputs in the Yangtze River Economic Belt: spatiotemporal dynamics, attribution analysis, and diversity management[J]. Journal of Hydrology,2021,597:126221. doi: 10.1016/j.jhydrol.2021.126221 [44] ZHANG Z Q, DENG C N, DONG L, et al. Microplastic pollution in the Yangtze River Basin: heterogeneity of abundances and characteristics in different environments[J]. Environmental Pollution,2021,287:117580. doi: 10.1016/j.envpol.2021.117580 [45] ZHANG Q Q, YING G G, PAN C G, et al. Comprehensive evaluation of antibiotics emission and fate in the river basins of China: source analysis, multimedia modeling, and linkage to bacterial resistance[J]. Environmental Science & Technology,2015,49(11):6772-6782. [46] 刘冬, 徐梦佳, 林乃峰, 等.加强长江三角洲区域生态空间一体化管治[J]. 中华环境,2020(12):25-27. [47] 廖小明.协同治理视域下民族地区生态治理的路径选择[J]. 学术探索,2020(9):50-56. doi: 10.3969/j.issn.1006-723X.2020.09.008LIAO X M. The path choice of ecological governance in ethnic areas from the perspective of collaborative governance[J]. Academic Exploration,2020(9):50-56. doi: 10.3969/j.issn.1006-723X.2020.09.008 [48] 燕波, 孙启宏, 李小敏, 等.差异化标准下长江经济带省际环境绩效比较研究[J]. 环境工程技术学报,2020,10(3):504-511. doi: 10.12153/j.issn.1674-991X.20190198YAN B, SUN Q H, LI X M, et al. Comparative study of environmental performance in Yangtze River Economic Belt under different standards[J]. Journal of Environmental Engineering Technology,2020,10(3):504-511. doi: 10.12153/j.issn.1674-991X.20190198 [49] 夏光.长江大保护: 难在“共”字, 突破在“统”字[J]. 中华环境,2017(增刊 1):70-71. [50] 郜志云, 姚瑞华, 续衍雪, 等.长江经济带生态环境保护修复的总体思考与谋划[J]. 环境保护,2018,46(9):13-17.GAO Z Y, YAO R H, XU Y X, et al. General thinking and planning of promoting the ecological environmental protection and restoration in the Yangtze River Economic Belt[J]. Environmental Protection,2018,46(9):13-17. [51] 巢哲雄.关于促进国家生态环境治理现代化的思考[J]. 环境保护,2014,42(16):44-46.CHAO Z X. Thoughts on promoting the national ecological environment governance modernization[J]. Environmental Protection,2014,42(16):44-46. [52] FORZIERI G, ALKAMA R, MIRALLES D G, et al. Satellites reveal contrasting responses of regional climate to the widespread greening of Earth[J]. Science,2017,356(6343):1180-1184. doi: 10.1126/science.aal1727 [53] DIFFENBAUGH N S, BURKE M. Global warming has increased global economic inequality[J]. Proceedings of the National Academy of Sciences of the United States of America,2019,116(20):9808-9813. doi: 10.1073/pnas.1816020116 [54] 徐明. 长江流域气候变化脆弱性与适应性研究[M]. 北京: 水利水电出版社, 2009. [55] 李付杰, 孙倩莹, 王世曦, 等.2000—2015年三江源区生态系统服务评估[J]. 环境工程技术学报,2020,10(5):786-797. doi: 10.12153/j.issn.1674-991X.20200059LI F J, SUN Q Y, WANG S X, et al. Valuation of ecosystem services in Three-River Headwaters Region from 2000 to 2015[J]. Journal of Environmental Engineering Technology,2020,10(5):786-797. doi: 10.12153/j.issn.1674-991X.20200059 [56] ZHENG Y T, HAN J C, HUANG Y F, et al. Vegetation response to climate conditions based on NDVI simulations using stepwise cluster analysis for the Three-River Headwaters region of China[J]. Ecological Indicators,2018,92:18-29. doi: 10.1016/j.ecolind.2017.06.040 [57] 郑裕彤, 黄跃飞, 王可昳.三江源地区植被对水分胁迫条件的响应特征[J]. 应用基础与工程科学学报,2018,26(2):249-262.ZHENG Y T, HUANG Y F, WANG K Y. Response of vegetation to water stress in the Three-River Headwaters Region of China[J]. Journal of Basic Science and Engineering,2018,26(2):249-262. [58] SU B, HUANG J, FISCHER T, et al. Drought losses in China might double between the 1.5 ℃ and 2.0 ℃ warming[J]. Proceedings of the National Academy of Sciences of the United States of America,2018,115(42):10600-10605. doi: 10.1073/pnas.1802129115 [59] 孔令桥, 张路, 郑华, 等.长江流域生态系统格局演变及驱动力[J]. 生态学报,2018,38(3):741-749.KONG L Q, ZHANG L, ZHENG H, et al. Driving forces behind ecosystem spatial changes in the Yangtze River Basin[J]. Acta Ecologica Sinica,2018,38(3):741-749. [60] 张文娟, 叶丽珠, 马秉云, 等.三江源草地总生物量对未来气候变化的响应[J]. 草业科学,2021,38(5):835-847.ZHANG W J, YE L Z, MA B Y, et al. The response of total grassland biomass in Sanjiangyuan to future climate change scenarios[J]. Pratacultural Science,2021,38(5):835-847. [61] 陈有明, 刘同庆, 黄燕, 等.长江流域湿地现状与变化遥感研究[J]. 长江流域资源与环境,2014,23(6):801-808. doi: 10.11870/cjlyzyyhj201406008CHEN Y M, LIU T Q, HUANG Y, et al. Remote sensing research of wetland current status and change in the Yangze River Basin[J]. Resources and Environment in the Yangtze Basin,2014,23(6):801-808. doi: 10.11870/cjlyzyyhj201406008 [62] 李海生, 王丽婧, 张泽乾, 等.长江生态环境协同治理的理论思考与实践[J]. 环境工程技术学报,2021,11(3):409-417. doi: 10.12153/j.issn.1674-991X.20210071LI H S, WANG L J, ZHANG Z Q, et al. Theoretical thought and practice of eco-environment synergistic management in the Yangtze River[J]. Journal of Environmental Engineering Technology,2021,11(3):409-417. ◇ doi: 10.12153/j.issn.1674-991X.20210071