Abstract
The wetland in the Yangtze Delta plays an important role in coastal protection against erosion, water purification, and habitat maintenance of migratory birds. The Yangtze Delta is one of the largest economic zones (e.g., Shanghai) in China. Human activities severely affect wetland evolution. Wetland map** was performed from multi-temporal remote sensing data of Landsat during the period 2000–2010 at intervals of about 5 years, and spatiotemporal changes in wetland characteristics as well as driving forces for such changes were analyzed. Results indicated the Yangtze River estuarine wetland area experienced a net increase of 63 % during the period of 2000–2010; from 2005 onwards, however, the rate of increase has decreased. Human activities, including upstream dam construction, estuarine engineering, land reclamation, and ecological engineering, played an important role in wetland evolution during this short period. Reduction of riverine sediment loads led to decreases in the increase rate of estuary wetland; 95 % of the estuarine shoreline is embanked by seawalls, which exerts negative effects because closure promotes substantial degradation of wetland areas. Urbanization and expansion of Shanghai facilitated regular land reclamation of wetland and led to 35 % wetland loss. Intentional artificial planting of aquatic plants and groyne construction accelerated sediment deposition and wetland formation to compensate for coastal wetland loss.
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References
Attrill MJ, Rundle SD (2002) Ecotone or ecocline: ecological boundaries in estuaries. Estuar Coast Shelf Sci 55(6):929–936
Blaschke T (2010) Object based image analysis for remote sensing. ISPRS J Photogramm Remote Sens 65:2–16
Chen S (2007) Report of resource sustainable development of intertidal zone in Shanghai. East China Normal University, China
Chen XQ, Yan Y, Fu RS, Dou X, Zhang EF (2008) Sediment transport from the Yangtze River, China, into the sea over the Post-Three Gorge Dam Period: a discussion. Quat Int 186:55–64
Chiquan H, Jiamiao L, Jun L, Liang X, Xue-** C, Yan-Ru L, Du Z (2013) Spatial distribution, source analysis, and ecological risk assessment of DDTs in typical wetland surface soils of Poyang Lake. Environ Earth Sci 68:1135–1141
Chu ZX, Zhai SK, Lu XX, Liu JP, Xu JX, Xu KH (2009) A quantitative assessment of human impacts on decrease in sediment flux from major Chinese rivers entering the western Pacific Ocean. Geophys Res Lett 36:L19603. doi:10.1029/2009GL039513
Chu Z, Yang X, Feng X, Fan D, Li Y, Shen X, Miao A (2013) Temporal and spatial changes in coastline movement of the Yangtze delta during 1974–2010. J Asian Earth Sci 66:166–174
Crooks JA (2002) Characterizing ecosystem-level consequences of biological invasions: the role of ecosystem engineers. Oikos 97:153–166
George X, Collin H, Joyce F (2009) Updating the 2001 national land cover database land cover classification to 2006 by using Landsat imagery change detection methods. Remote Sens Environ 113:1133–1147
Goodwin P, Mehta AJ, Zedler JB (2001) Coastal wetland restoration: an introduction. J Coastal Res 27:1–6
Gopal B (2009) Biodiversity in wetlands. In: Maltby E, Barker T (eds) The wetlands handbook. Wiley, Oxford, pp 65–95
Halil IC, Siamak K, Stacy Nelson AC (2006) Correspondence analysis for detecting land cover change. Remote Sens Environ 102:306–317
He W, Rusty F, Lu J, Liu W, Yan Q, **e Z (2007) Impacts of introduced Spartina alterniflora along an elevation gradient at the Jiuduansha Shoals in the Yangtze Estuary, suburban Shanghai, China. Ecol Eng 29:245–248
Luo XX, Yang SL, Zhang J (2012) The impact of the Three Gorges Dam on the downstream distribution and texture of sediments along the middle and lower Yangtze River (Changjiang) and its estuary, and subsequent sediment dispersal in the East China Sea. Geomorphology 179:126–140
Ministry of Water Resources of China (MWRC) (2005) River sediment bulletin in China. http://www.mwr.gov.cn/zwzc/hygb/ (in Chinese)
Nilsson C, Reidy CA, Dynesius M, Revenga C (2005) Fragmentation and flow regulation of the world’s large river systems. Science 308:405–408
Pan LZ, Ding PX, Ge JZ, Hu KL (2011) Analysis of influence of Deep Waterway Project on morphological change in North Passage of Changjiang Estuary. J Sediment Res 5:51–59 (in Chinese)
Qin P, Mitsch WJ (2009a) Wetland restoration and ecological engineering: international conference of wetland restoration and ecological engineering. Ecol Eng 35:437–441
Qin P, Mitsch WJ (2009) Wetland restoration and ecological engineering: international conference on wetland restoration and ecological engineering. Ecol Eng 35:437–441
Revichandran C, Srinivas K, Muraleedharan KR, Rafeeq M, Amaravayal S, Vijayakumar K, Jayalakshmy KV (2012) Environmental set-up and tidal propagation in a tropical estuary with dual connection to the sea (SW Coast of India). Environ Earth Sci 66:1031–1042
Ryan PP, Geoffrey JH, Gang C (2012) How wetland type and area differ through scale: a GEOBIA case study in Alberta’s Boreal Plains. Remote Sens Environ 117:135–145
Sheng S, Chi X, Shaowei Z, Shuqing A, Maosong L, Xuejiao Y (2012) Hot spots of wetland vegetation reduction in relation to human accessibility: differentiating human impacts on natural ecosystems at multiple scales. Environ Earth Sci 65:1965–1975
Syvitski JPM, Kettner AJ, Overeem I, Hutton EWH, Hannon MT, Brakenridge GR, Day J, Vorosmarty C, Saito Y, Giosan L, Nicholls RJ (2009) Sinking deltas due to human activities. Nat Geosci 2:681–686
Wang M, Qi S, Zhang X (2011) Wetland loss and degradation in the Yellow River Delta, Shandong Province of China. Environ Earth Sci 67(1):185–188
Wei J, He XB, Bao YH (2011) Anthropogenic impacts on suspended sediment load in the Upper Yangtze River. Reg Environ Change 11:857–868
Wu Y, Dittmar T, Ludwichowski KU, Kettner G, Zhang J, Zhu ZY, Koch BP (2007) Tracing suspended organic nitrogen from the Yangtze River catchment into the East China Sea. Mar Chem 107:367–377
**ao D, Zhang L, Zhu Z (2010) The range expansion patterns of Spartina alterniflora on salt marshes in the Yangtze Estuary, China. Estuar Coast Shelf Sci 88:99–104
Xu K, Milliman JD, Yang ZS, Xu H (2007) Climatic and anthropogenic impacts on the water and sediment load from the Yangtze River (Changjiang), 1950–2005. In: Gupta A (ed) Large rivers: geomorphology and management. John Wiley & Sons, New York, pp 609–626
Xu K, Milliman JD, Li A, Liu JP, Kao SJ, Wan S (2009) Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea. Cont Shelf Res 29:2240–2256
Xu NZ, Zhang TL, Wang XX, Liu HY (2011) Soil organic carbon storage changes in Yangtze Delta region, China. Environ Earth Sci 63(5):1021–1028
Yang SL, Li H, Ysebaert T (2008) Spatial and temporal variations in sediment grain size in tidal wetlands, Yangtze Delta: on the role of physical and biotic controls. Estuar Coast Shelf Sci 77:657–671
Yang SL, Milliman JD, Li P, Xu K (2011) 50,000 dams later: erosion of the Yangtze River and its delta. Glob Planet Change 75:14–20
Yu Q, Gong P, Clinton N, Biging G, Kelly M, Schirokauer D (2006) Object based detailed vegetation classification with airborne high spatial resolution remote sensing imagery. Photogramm Eng Remote Sens 72(7):799–811
Zhang Y (2009) The Yangtze Delta economic zone. http://www.hprc.org.cn/gsgl/zggk/zhgjj/111_4/200910/t20091013_32963.html (in Chinese)
Zhang H, Qi Z-f, Ye X-y, Cai Y-b, Ma W-c, Chen M-n (2013) Analysis of land use/land cover change, population shift, and their effects on spatiotemporal patterns of urban heat islands in metropolitan Shanghai, China. Appl Geogr 44:121–133
Acknowledgments
This research was funded by the project of the “Strategic Priority Research Program—Climate Change: Carbon Budget and Related Issues” of the Chinese Academy of Sciences (XDA05050109); Inventory and Assessment of National Ecological Environment 10 years Changes(2000–2010)using Remote sensing; National Natural Science Foundation of China (41371361, 41101501).
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Zhang, L., Wu, B., Yin, K. et al. Impacts of human activities on the evolution of estuarine wetland in the Yangtze Delta from 2000 to 2010. Environ Earth Sci 73, 435–447 (2015). https://doi.org/10.1007/s12665-014-3565-2
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DOI: https://doi.org/10.1007/s12665-014-3565-2