Application of the SEBAL method in water resources management in the Yellow River Delta of China

2010 ◽  
Vol 19 (1-3) ◽  
pp. 212-218
Author(s):  
Xiaoyan Wang ◽  
Chuangchun Zhang ◽  
Jiahua Wei
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
The Yellow River Delta ◽  
Resources Management

Applications of Variable Fuzzy Set Theory and GIS for Water Resources Vulnerability Assessment of Yellow River Delta

2014 ◽  
Vol 700 ◽  
pp. 501-505 ◽  
Author(s):  
Yu Zhi Shi ◽  
Fu Lin Li ◽  
Ming Yuan Fan ◽  
Hai Jiao Liu ◽  
Xiao Feng Yang
Keyword(s):  
Water Resources ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Economic Region ◽  
The Yellow River Delta ◽  
Proposed Model ◽  
Variable Fuzzy Set ◽  
Water Resources Vulnerability

The Yellow River delta is the Lord area of national high efficient ecological-economic region and Shandong peninsula blue economic region, and it has an important strategic status. This paper integrates variable fuzzy set theory with geographic information technology (GIS) to construct the vulnerability evaluation model of Yellow River delta water resources. First, The study area is partitioned into different evaluation zones (sub-area) based on the spatial recognition technology of GIS; Second, the evaluation index system is formulated in terms of the two aspects of water resources vulnerability, natural and human factors; Finally, city of Dongying is selected as study area, which accounts for 93% of the Yellow River delta, to verify the proposed model. The results indicate that the water resources vulnerability of the Yellow River delta greatly changes in space, the region of coastal, Xiaoqing river and Zhimai river shows high vulnerability, while the region along the Yellow River has low vulnerability. In conclusion, the proposed model can effectively identify water resource vulnerability in space.

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.

scholarly journals Nitrate leaching and NH3 volatilization during soil reclamation in the Yellow River Delta, China

2021 ◽  
pp. 117330
Author(s):  
Wei Zhu ◽  
Jingsong Yang ◽  
Rongjiang Yao ◽  
Xiangping Wang ◽  
Wenping Xie ◽  
...  
Keyword(s):  
Nitrate Leaching ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Soil Reclamation ◽  
The Yellow River ◽  
Nh3 Volatilization ◽  
The Yellow River Delta
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