the Yangtze River Economic Belt; lake environmental change; ecosystem degradation; process and mechanism; strategy of protection and restoration
Lakes in the Yangtze River Economic Belt are mainly distributed in the Hengduan Mountain area in Southwest China and the flood plain area of the Yangtze-Huaihe River Basin in East China. The high spatial variability of natural environment and economic development have rendered the ecological and environmental problems of these lakes. Comprehensive improvement of the lake environment and their ecological states are important for regional development. In the absence of long-term monitoring data, past environmental changes based on lake sediments, also termed as paleolimnological studies, can provide historical information for the protection and restoration of these lakes. This study revealed better water quality in alpine lakes than low-altitude ones in southwest China, while the worst water quality in the shallow lakes in the Jianghuai region. Furthermore, based on paleolimnological analysis, this study provided a long-term perspective to reveal the evolution characteristics and the mechanisms responding to the changes in climate, hydrology and nutrition in different lakes of the two areas in the past century. Such research also elucidated the reasons of the lake degradation in recent years, and exhibited the advantage of paleolimnological studies in defining reference conditions for ecosystem restoration, management evaluation, community structure optimization during aquatic vegetation restoration, early warning signals of ecosystem critical transition, and ecological safety assessment. Aiming at above environmental problems faced by lakes in different regions, the study put forward several targeted measures for their protection and restoration.
Bulletin of Chinese Academy of Sciences
杨桂山, 马荣华, 张路, 等.中国湖泊现状及面临的重大问题与保护策略.湖泊科学, 2010, 22(6):799-810.
Cui P, Zhu Y Y, Han Y S, et al. The 12 May Wenchuan earthquake-induced landslide lakes:Distribution and preliminary risk evaluation. Landslides, 2009, 6(3):209-223.
Hu Z J, Anderson N J, Yang X D, et al. Climate and tectonic effects on Holocene development of an alpine lake (Muge Co, SE margin of Tibet). The Holocene, 2016, 26(5):801-813.
王苏民, 窦鸿身.中国湖泊志.北京:科学出版社, 1998.
Yin H F, Liu G R, Pi J G, et al. On the river-lake relationship of the middle Yangtze reaches. Geomorphology, 2007, 85(3-4):197-207.
Wang R, Dearing J A, Doncaster C P, et al. Network parameters quantify loss of assemblage structure in human-impacted lake ecosystems. Global Change Biology, 2019, 25(11):3871-3882.
Qin B Q, Paerl H W, Brookes J D, et al. Why Lake Taihu continues to be plagued with cyanobacterial blooms through 10 years (2007-2017) efforts. Science Bulletin, 2019, 64(6):354-356.
王洪铸, 刘学勤, 王海军.长江河流-泛滥平原生态系统面临的威胁与整体保护对策.水生生物学报, 2019, 43(S1):157-182.
袁刚, 茹辉军, 刘学勤. 2007-2008年云南高原湖泊鱼类多样性与资源现状.湖泊科学, 2010, 22(6):837-841.
孔繁翔, 马荣华, 高俊峰, 等.太湖蓝藻水华的预防、预测和预警的理论与实践.湖泊科学, 2009, 21(3):314-328.
Kong L Y, Yang X D, Kattel G R, et al. The response of cladocerans to recent environmental forcing in an alpine lake on the SE Tibetan Plateau. Hydrobiologia, 2017, 784(1):171-185.
Hu Z J, Anderson N J, Yang X D, et al. Catchment-mediated atmospheric nitrogen deposition drives ecological change in two alpine lakes in SE Tibet. Global Change Biology, 2014, 20(5):1614-1628.
Hu Z J, Yang X D, Anderson N J, et al. The landscapeatmosphere continuum determines ecological change in alpine lakes of SE Tibet. Ecosystems, 2018, 21(5):839-851.
Li Y L, Gong Z J, Xia W L, et al. Effects of eutrophication and fish yield on the diatom community in Lake Fuxian, a deep oligotrophic lake in southwest China. Diatom Research, 2011, 26(1):51-56.
Wang R, Dearing J A, Langdon P G, et al. Flickering gives early warning signals of a critical transition to a eutrophic lake state. Nature, 2012, 492(7429):419-422.
Zheng W X, Wang R, Zhang E L, et al. Complex relationship between the diversity and stability of chironomid assemblages in the recent sediments of two large alpine lakes in SW China. Science of The Total Environment, 2019, 684:705-714.
刘园园, 陈光杰, 施海彬, 等.星云湖硅藻群落响应近现代人类活动与气候变化的过程.生态学报, 2016, 36(10):3063-3073.
Zhang Q H, Dong X H, Yang X D, et al. Hydrologic and anthropogenic influences on aquatic macrophyte development in a large, shallow lake in China. Freshwater Biology, 2019, 64(4):799-812.
Chen X, Yang X D, Dong X H, et al. Environmental changes in Chaohu Lake (southeast, China) since the mid 20th century:The interactive impacts of nutrients, hydrology and climate. Limnologica-Ecology and Management of Inland Waters, 2013, 43(1):10-17.
Zhang Q H, Dong X H, Chen Y W, et al. Hydrological alterations as the major driver on environmental change in a floodplain Lake Poyang (China):Evidence from monitoring and sediment records. Journal of Great Lakes Research, 2018, 44(3):377-387.
Chen X, McGowan S, Xu L, et al. Effects of hydrological regulation and anthropogenic pollutants on Dongting Lake in the Yangtze floodplain. Ecohydrology, 2016, 9(2):315-325.
Bennion H, Battarbee R. The European Union water framework directive:Opportunities for palaeolimnology. Journal of Paleolimnology, 2007, 38(2):285-295.
Yang X D, Anderson N J, Dong X H, et al. Surface sediment diatom assemblages and epilimnetic total phosphorus in large, shallow lakes of the Yangtze floodplain:Their relationships and implications for assessing long-term eutrophication. Freshwater Biology, 2008, 53(7):1273-1290.
Zhang E L, Bedford A, Jones R, et al. A subfossil chironomidtotal phosphorus inference model for lakes in the middle and lower reaches of the Yangtze River. Chinese Science Bulletin, 2006, 51(17):2125-2132.
Dong X H, Yang X D, Chen X, et al. Using sedimentary diatoms to identify reference conditions and historical variability in shallow lake ecosystems in the Yangtze floodplain. Marine and Freshwater Research, 2016, 67(6):803-815.
董旭辉, 羊向东.湖泊生态修复基准环境的制定:古生态学面临的机遇.湖泊科学, 2012, 24(6):974-984.
张清慧.长江中下游浅水湖泊水生植被演替与驱动机制.北京: 中国科学院大学, 2019.
Scheffer M, Bascompte J, Brock W A, et al. Early-warning signals for critical transitions. Nature, 2009, 461:53-59.
Zhang K, Dong X H, Yang X D, et al. Ecological shift and resilience in China's lake systems during the last two centuries. Global and Planetary Change, 2018, 165:147-159.
Xu M, Wang R, Dong X H, et al. A palaeolimnological perspective to understand regime-shift dynamics in two Yangtze-basin lakes. Biology Letters, 2019, 15(11):20190447.
Dearing J A, Yang X D, Dong X H, et al. Extending the timescale and range of ecosystem services through paleoenvironmental analyses, exemplified in the lower Yangtze basin. PNAS, 2012, 109(18):6808-6809.
Xu M, Dong X H, Yang X D, et al. Using palaeolimnological data and historical records to assess long-term dynamics of ecosystem services in typical Yangtze shallow lakes (China). Science of the Total Environment, 2017, 584:791-802.
Lin Q, Zhang K, Shen J, et al. Integrating long-term dynamics of ecosystem services into restoration and management of large shallow lakes. Science of the Total Environment, 2019, 671:66-75.
苏彦瑜, 董旭辉. "安全公正空间"框架在区域环境管理中的应用——以太白湖流域为例.地球环境学报, 2020, DOI:10.7515/JEE192038.
McGowan S, Leavitt P R, Hall R I, et al. Interdecadal declines in flood frequency increase primary production in lakes of a northern river delta. Global Change Biology, 2011, 17(2):1212-1224.
Rocha J C, Peterson G, Bodin Ö, et al. Cascading regime shifts within and across scales. Science, 2018, 362:1379-1383.
Xiangdong, YANG; Xuhui, DONG; Xu, CHEN; Rong, WANG; Qian, WANG; Qi, LIN; and Min, XU
"Past Environmental Changes and Management Suggestions for Lakes in the Yangtze River Economic Belt,"
Bulletin of Chinese Academy of Sciences (Chinese Version): Vol. 35
, Article 5.
Available at: https://bulletinofcas.researchcommons.org/journal/vol35/iss8/5