Shandong Science ›› 2023, Vol. 36 ›› Issue (6): 112-120.doi: 10.3976/j.issn.1002-4026.2023.06.014

• Environment and Ecology • Previous Articles     Next Articles

Progress of applied research on the ecological degradation and restoration of wetlands in the Yellow River Delta: a review

CAI Xinyan1(), WANG Yi2, CHEN Yingkai3   

  1. 1. Shandong Institute of Scientific and Technical Information,Jinan 250000,China
    2. College of Resources and Environmental Engineering, Ludong University, Yantai 264025,China
    3. Shandong Academy of Agricultural Sciences, Jinan 250131,China
  • Received:2023-08-28 Online:2023-12-20 Published:2023-12-07

Abstract:

A systematic review was conducted on the current status and causes of the ecological degradation of wetlands in the Yellow River Delta (YRD), and the ecological restoration technologies were summarized. The results revealed that the wetland areas in the YRD are currently in a serious state of degradation, with the total area of wetlands shrinking year by year. Along with the shrinking of the wetland area, the wetland composition has changed, natural wetlands are decreasing while artificial wetlands are gradually increasing, the pattern of the landscape shows a trend toward fragmentation, and the service function of the ecosystem has been seriously degraded. The main causes of wetland ecological degradation in the YRD include the reduction of water and sediment fluxes from the Yellow River, increased sea-land interactions, intensified salinization of the soil, climate change, invasive species, and human activities. Current ecological restoration techniques for wetland restoration include biocomponent restoration, water body restoration, soil improvement, and comprehensive habitat restoration. This study will utimately provide specific recommendations for wetland restoration in the YRD, which is of great significance for the national strategy of ecological protection and the high-quality development of the YRD.

Key words: Yellow River Delta, degraded wetlands, wetland environment, biodiversity, ecological restoration, environmental pollution, coastal landscape

CLC Number: 

  • X-1