Effect of nitrate nitrogen leaching of paddy field based on Pig manure returning soil in the Yellow River irrigation area of Ningxia

2014 ◽  
Vol 34 (16) ◽  
Author(s):  
杨世琦 YANG Shiqi ◽  
王永生 WANG Yongsheng ◽  
张爱平 ZHANG Aiping ◽  
杨正礼 YANG Zhengli
Keyword(s):  
Paddy Field ◽  
Nitrate Nitrogen ◽  
Yellow River ◽  
Nitrogen Leaching ◽  
Pig Manure ◽  
The Yellow River ◽  
Irrigation Area

Study on Calculation Methods of Agricultural Water Supply Cost in the Plain Irrigation Area of the Yellow River

2012 ◽  
Vol 212-213 ◽  
pp. 498-501
Author(s):  
Rui Guo ◽  
Sheng Le Cao
Keyword(s):  
Water Supply ◽  
Yellow River ◽  
Water Pricing ◽  
Water Price ◽  
The Yellow River ◽  
Agricultural Water ◽  
Calculation Methods ◽  
Irrigation Area ◽  
Agricultural Water Supply

Scientific and reasonable water price is the foundation of beneficial operation of water supply project, and water pricing is on the basis of per cubic meter water supply cost. According to characteristics of water supply project in the plain irrigation area of the Yellow River, a research on calculation methods of agricultural water supply cost is made. Calculation formulas of project lines are put forward and an example was given.

Nitrate-Nitrogen Transport in Horizontal Soil Columns of the Yellow River Delta Wetland, China

2012 ◽  
Vol 40 (10) ◽  
pp. 1106-1110 ◽  
Author(s):  
Junhong Bai ◽  
Xiaofei Ye ◽  
Yuan Zhi ◽  
Haifeng Gao ◽  
Laibin Huang ◽  
...  
Keyword(s):  
Nitrate Nitrogen ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Nitrogen Transport ◽  
Soil Columns ◽  
The Yellow River Delta ◽  
Yellow River Delta Wetland

Research on Water Saving Irrigation and Optimal Allocation of Water Resources

2014 ◽  
Vol 522-524 ◽  
pp. 1000-1004
Author(s):  
Chang Hu ◽  
Dang Sheng Li
Keyword(s):  
Water Resources ◽  
Programming Problem ◽  
Optimal Allocation ◽  
Yellow River ◽  
Underground Water ◽  
The Yellow River ◽  
Agricultural Irrigation ◽  
Irrigation Area ◽  
One Dimensional ◽  
Decision Variables

The agricultural irrigation water of Kaifeng is mainly supplied by the Yellow River and the local underground water. According to the conditions of irrigation area water supply and groundwater reduction for many years, the paper puts forward the optimal allocation and the supplying water programs on using combination of surface water and groundwater. By using variable one-dimensional search technology, the nonlinear programming problem will be turned into linear programming problem. Thus, choose different decision variables and different parameters to use computing in order to get to approach the optimal allocation of water resources.

Effect of nitrate leaching of winter wheat based on straw application in the Yellow River irrigation area of Ningxia

2015 ◽  
Vol 35 (16) ◽  
Author(s):  
杨世琦 YANG Shiqi ◽  
王永生 WANG Yongsheng ◽  
韩瑞芸 HAN Ruiyun ◽  
谢晓军 XIE Xiaojun ◽  
杨正礼 YANG Zhengli
Keyword(s):  
Winter Wheat ◽  
Nitrate Leaching ◽  
Yellow River ◽  
The Yellow River ◽  
Irrigation Area ◽  
Straw Application
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