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Article

Spatial Distributions of Nitrogen and Phosphorus in Surface Sediments in Intertidal Flats of the Yellow River Delta, China

by 1,2,3, 1,3,*, 1,3,*, 1,3, 3, 3 and 1,3
1
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
2
College of Water Sciences, Beijing Normal University, Beijing 100875, China
3
State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Hongbo Ling
Water 2021, 13(20), 2899; https://doi.org/10.3390/w13202899
Received: 22 August 2021 / Revised: 8 October 2021 / Accepted: 9 October 2021 / Published: 15 October 2021
The spatial distributions of nitrogen (N) and phosphorus (P) in surface sediments are of great significance in studying the ecological process of nutrient cycling in intertidal flats. However, little is known about N and P’s spatial distribution in intertidal flats of the Yellow River Delta (YRD). We analyzed the N and P contents in surface sediments and Suaeda glauca density at the low-tidal level to identify the spatial distributions of nutrients and their influencing factors in coastal tidal flat sediments. The results showed that the total nitrogen (TN) and total phosphorus (TP) concentrations in this study were both lower than the background values of China’s shallow sea sediments. The spatial distributions of N and P had significantly spatial heterogeneity, while those of the nutrients at different distances from the low-tidal level to the coastline showed no significant distance effects. The spatial distribution of S. glauca in coastal tidal flats had significant location characteristics and was closely related to the distribution of TN and pH. The TN in non-estuarine intertidal flats was less than that in estuaries; in contrast, the TP was higher in non-estuaries. There are some differences of N and P between estuary and non-estuary areas. View Full-Text
Keywords: coastal wetland; nitrogen; non-estuary; phosphorus; spatial pattern; Yellow River Delta coastal wetland; nitrogen; non-estuary; phosphorus; spatial pattern; Yellow River Delta
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MDPI and ACS Style

Fu, G.; Qi, Y.; Li, J.; Zhao, C.; He, J.; Ma, Y.; Zhu, J. Spatial Distributions of Nitrogen and Phosphorus in Surface Sediments in Intertidal Flats of the Yellow River Delta, China. Water 2021, 13, 2899. https://doi.org/10.3390/w13202899

AMA Style

Fu G, Qi Y, Li J, Zhao C, He J, Ma Y, Zhu J. Spatial Distributions of Nitrogen and Phosphorus in Surface Sediments in Intertidal Flats of the Yellow River Delta, China. Water. 2021; 13(20):2899. https://doi.org/10.3390/w13202899

Chicago/Turabian Style

Fu, Gang, Yue Qi, Junsheng Li, Caiyun Zhao, Jing He, Yiwen Ma, and Jinfang Zhu. 2021. "Spatial Distributions of Nitrogen and Phosphorus in Surface Sediments in Intertidal Flats of the Yellow River Delta, China" Water 13, no. 20: 2899. https://doi.org/10.3390/w13202899

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