Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China

2012 ◽  
Vol 40 (10) ◽  
pp. 1131-1136 ◽  
Author(s):  
Junna Sun ◽  
Gang Xu ◽  
Hongbo Shao ◽  
Shaohui Xu
Keyword(s):  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Wetland Soils ◽  
The Yellow River Delta ◽  
Release Capacity

Spatial Variability of Nitrogen and Phosphorus in Wetland Soils of the Yellow River Delta, China

2012 ◽  
Vol 610-613 ◽  
pp. 1028-1032
Author(s):  
Chen Huang ◽  
Jun Hong Bai ◽  
Jun Jing Wang ◽  
Qiong Qiong Lu ◽  
Qing Qing Zhao ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Soil Nitrogen ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Model Parameters ◽  
Wetland Soils ◽  
Nitrogen And Phosphorus ◽  
The Yellow River Delta

Spatial variability of soil nitrogen and phosphorus in the Yellow River Delta was investigated using geostatistical method. Our results showed moderate variation in TN and TP and high variations in NH4+-N and AP. The best semi-variogram model for each nutrient was identified. The model parameters suggested that the structure variance dominated the total variance of TN, TP and NH4+-N, while the spatial variability of AP was relatively random. The spatial variation scales of soil nitrogen and phosphorus are similar.

Effects of biochar on carbon mineralization of coastal wetland soils in the Yellow River Delta, China

2016 ◽  
Vol 94 ◽  
pp. 329-336 ◽  
Author(s):  
Xianxiang Luo ◽  
Leyun Wang ◽  
Guocheng Liu ◽  
Xiao Wang ◽  
Zhenyu Wang ◽  
...  
Keyword(s):  
Coastal Wetland ◽  
Yellow River ◽  
Carbon Mineralization ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Wetland Soils ◽  
The Yellow River Delta

scholarly journals Heavy metals in wetland soils along a wetland-forming chronosequence in the Yellow River Delta of China: Levels, sources and toxic risks

2016 ◽  
Vol 69 ◽  
pp. 331-339 ◽  
Author(s):  
Guangliang Zhang ◽  
Junhong Bai ◽  
Qingqing Zhao ◽  
Qiongqiong Lu ◽  
Jia Jia ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Wetland Soils ◽  
The Yellow River Delta

NATURAL FACTORS FOR DETERIORATION OF COASTAL WETLAND IN THE YELLOW RIVER DELTA

2011 ◽  
Vol 31 (1) ◽  
pp. 43-50
Author(s):  
Changxin YAO ◽  
Hongming YUAN ◽  
Xiangjun MENG ◽  
Shaoquan LI
Keyword(s):  
Coastal Wetland ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
The Yellow River Delta ◽  
Natural Factors

Effects of reclamation on net ecosystem CO2 exchange in wetland in the Yellow River Delta, China

2013 ◽  
Vol 37 (6) ◽  
pp. 503-516 ◽  
Author(s):  
Li-Qiong YANG ◽  
Guang-Xuan HAN ◽  
Jun-Bao YU ◽  
Li-Xin WU ◽  
Min ZHU ◽  
...  
Keyword(s):  
Yellow River ◽  
Yellow River Delta ◽  
Co2 Exchange ◽  
River Delta ◽  
The Yellow River ◽  
Net Ecosystem Co2 Exchange ◽  
The Yellow River Delta

scholarly journals Impacts of Consolidation Time on the Critical Hydraulic Gradient of Newly Deposited Silty Seabed in the Yellow River Delta

2021 ◽  
Vol 9 (3) ◽  
pp. 270
Author(s):  
Meiyun Tang ◽  
Yonggang Jia ◽  
Shaotong Zhang ◽  
Chenxi Wang ◽  
Hanlu Liu
Keyword(s):  
Yellow River ◽  
Yellow River Delta ◽  
Hydraulic Gradient ◽  
River Delta ◽  
Theoretical Formula ◽  
The Yellow River ◽  
The Yellow River Delta ◽  
Critical Hydraulic Gradient ◽  
Seepage Flows ◽  
The Yrd

The silty seabed in the Yellow River Delta (YRD) is exposed to deposition, liquefaction, and reconsolidation repeatedly, during which seepage flows are crucial to the seabed strength. In extreme cases, seepage flows could cause seepage failure (SF) in the seabed, endangering the offshore structures. A critical condition exists for the occurrence of SF, i.e., the critical hydraulic gradient (icr). Compared with cohesionless sands, the icr of cohesive sediments is more complex, and no universal evaluation theory is available yet. The present work first improved a self-designed annular flume to avoid SF along the sidewall, then simulated the SF process of the seabed with different consolidation times in order to explore the icr of newly deposited silty seabed in the YRD. It is found that the theoretical formula for icr of cohesionless soil grossly underestimated the icr of cohesive soil. The icr range of silty seabed in the YRD was 8–16, which was significantly affected by the cohesion and was inversely proportional to the seabed fluidization degree. SF could “pump” the sediments vertically from the interior of the seabed with a contribution to sediment resuspension of up to 93.2–96.8%. The higher the consolidation degree, the smaller the contribution will be.

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