1Estimation and Spatial Distribution of Agricultural Non-point Source Pollution Loads in Henan ProvinceLIU Zengjin, ZHANG Guanchao, YANG Yuhong, LI Dongqin1-62Quantitative Correlation between Urbanization and Water Resources Utilization in Central Henan Urban AgglomerationLYU Subing, MA Yuqi, YE Jinxiang, LI Qingyun7-123Numerical Simulation of U-shaped Precast Concrete Channel Lining Applying the Smeared CrackWANG Bin, TIAN Juncang13-174Response of DEM Scale Effect and Hydrological Simulation of SWAT ModelWU Jiang, HU Sheng18-235Determination and Analysis of Calculation Parameters for Cleaning Pressure Drop of Quartz Sand Filter Layer Used in Micro-irrigationLI Jinghai, LIU Qingxia, HUANG Xiuqiao, ZHAI Guoliang, HAN Qibiao, LIU Yang24-286Direct Computation Method for Computing Critical Depth in Channels of Catenary SectionsCHEN Cheng, GONG Yi, WANG Jie, CHEN Dong, YAN Yuetong29-337Effects of Irrigation Amount and Drip Fertigation Method on Yield and Nutrient Uptake of Cucumber in GreenhouseFANG Dongping, WU Lifeng, ZHANG Fucang, XIANG Youzhen34-418Effect of Winter Irrigation Amount on Soil Moisture and Salt Distribution in Arid AreaZHANG Han, YANG Pengnian, WANG Changshu, LI Xunzhang42-469Pollution Characteristics of Water System and River System in Haihe BasinZHANG Xian'e, FENG Chenghong, HUANG Beibei, LIU Maoniu, LIU Jingling47-5110Filtration Performance of Disc Filters for MicroirrigationLI Nan, ZHAI Guoliang, ZHANG Wenzheng, CAI Jiumao52-5611Effect of Irrigation Quota of Sprinkler on Chinese Brassica Growth and Photosynthetic CharacteristicsHU You, TIAN Juncang57-6112Past-evaluation of Water Conservancy Development Plan Based on Entropy Weight and Matter Element ModelCAO Ruizhe, YU Shuang'en, GAO Shikai, GUO Rong, TIAN Lang62-6813Effects of No-tillage with Different Mulching Methods on Soil Water and Temperature in Rainfed Oats FieldWANG Runlian, LIU Jinghui, ZHANG Zhidong, LIU Huijun69-7314Influence of Rotational Speed on Hydraulic Performance of S-shaped Shaft Extension Pumping SystemXU Lei, LIU Chao, WANG Pengye, XU Jian, QIAN Jun74-7915Temporal-spatial Changing Characteristics of Reference Crop Evapotranspiration in the Five Provinces of Southwest ChinaZHANG Qingwen, CUI Ningbo, FENG Yu, GONG Daozhi, HU Xiaotao80-8716Effects of Biochar on Soil Nutrient and Enzyme Activity from Coal Mining Subsidence Reclamation AreaJIA Junxiang, XIE Yinghe88-9117Effects of Tillage Methods on Soil Enzyme and Growth Status of Spring Maize in DrylandZHAO Qixiong92-9618Analysis on Start-up Transition of Diving Tubular Pumping Station Based on Matlab/Simulink SimulationSHI Weiwei, GONG Rongshan, TANG Guirong, CHEN Songshan97-10219Dynamic Forecast of Crop Water Requirement in Sanyizhai Irrigation DistrictSONG Dehai, FENG Yuehua, GAO Zhiyong103-10620Calculation and Prediction of Water Demand of the Ecological Environment in Sushui River BasinXU Kun107-110 