Modelling Hydrological Connectivity in the Marine-Freshwater Interaction in the Yellow River Estuary of China
- PDF / 937,645 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 61 Downloads / 245 Views
DEGRADATION AND ECOLOGICAL RESTORATION OF ESTUARINE WETLANDS IN CHINA
Modelling Hydrological Connectivity in the Marine-Freshwater Interaction in the Yellow River Estuary of China Wenwen Li 1,2 & Heying Li 3 & Demin Zhou 1,2 & Zhaoning Gong 1,2 & Lei Zhang 1,2 & Qiwei Wang 1,2 Received: 5 November 2019 / Accepted: 21 February 2020 # Society of Wetland Scientists 2020
Abstract It’s significant to probe hydrological connectivity within the estuarine area for implementing the ecological restoration experiment on the damaged coastal wetland and the methodology development of wetland eco-hydrology. We established the Integrated Accessibility Index to Marine and Freshwater (IAIMF) to evaluate the hydrological connectivity based on the accessibility principles. 1 km grid was setup for quantifying spatially the grid based hydrological connectivity within the interaction zone of the freshwater and marine water in the Yellow River Estuary of China. The results demonstrated that: 1) IAIMF indicated a gradually changed hydrological connectivity from the freshwater dominative area to marine dominative area, which presented quantitatively the detailed spatial characteristics of the hydrological connectivity in the study area. 2) The correlation coefficient between the soil salinity data and IAIMF reached 0.694, demonstrating that IAIMF is reasonable to quantify the hydrological connectivity in the estuary area. 3) IAIMF played a good role for indicating the vegetation partition of marine-freshwater. IAIMF revealed a linkage between the spatial distribution of coastal wetland vegetation with environmental characteristics of creeks and soil salinity. Due to its presenting the key information of water accessibility to the wetland habitat, IAIMF can provide more effective and scientific schemes for decision makers on the costal wetland restoration and biodiversity conservation. Keywords Hydrological connectivity . Water accessibility . Coastal wetlands . IAIMF
Introduction Hydrological connectivity has been a hot topic in the research fields of hydrology, ecology, and environment (Cui et al. 2016). The worth of natural wetlands and the microbial community was driven by the natural and anthropogenic processes (Huang et al. 2020; Ma et al. 2019). Water is a fundamental * Demin Zhou [email protected] * Zhaoning Gong [email protected] 1
College of Resource, Environment and Tourism, Capital Normal University, 105 West Sanhuan North Road, Haidian District, 100048 Beijing, People’s Republic of China
2
Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, 105 West Sanhuan North Road, Haidian District, 100048 Beijing, People’s Republic of China
3
College of Environment and Planning, Henan University, Kaifeng 475004, People’s Republic of China
element which supports animals and plants within the coastal wetland ecosystem, therefore it plays a key role on the transforming or approving wetland habitats and corresponding landforms through the hydrological connectivity vision (An et al. 2
Data Loading...
