1Temporal and Spatial Variation of Drought in Southwest ChinaNIU Kai-jie, LIANG Chuan, ZHAO Lu, ZHAN Cun1-62Purification Effect of Ecological Ditch on Agricultural Non-point Source PollutantsHOU Jing-wen, CUI Yuan-lai, ZHAO Shu-jun, XU Ya-qun7-113Distribution and Migration Characteristics of Pesticide Non-point Source Pollution in An Orange Field of the Three Gorges Reservoir AreaWU Lei, MA Xiao-yi, LIU Xia12-16,674Effect Factors and Tendency of Water Demand and Water Use in Guanzhong Irrigation DistrictWANG Chao, NIU Wen-quan17-215Effects of Water and Nitrogen on the Diurnal Variation of Photosynthesis of Maize in Slightly Salted AreaYAN Jian-wen, SHI Hai-bin, LI Xian-yue, TIAN De-long, LI Zhen, LI Zheng-zhong22-276Influence of Soil Wetting Pattern under Drip Irrigation on Cotton Root Structure and Root Biomass AccumulationSUN Hao, LI Ming-si, LI Jin-shan, HAN Qi-biao, JIA Yan-hui, DUAN Fu-yi28-327Effects of Aeration Irrigation on Soil Enviornment and Yield of Tomato in GreenhouseYIN Xiao-xia, CAI Huan-jie33-378Desalination of Subsurface Pipe Drainage in Saline-alkali Land of Coastal AreasCHEN Yang, ZHANG Zhan-yu, FENG Gen-xiang, WAN Chang-yu38-419Application of Subsurface Controlled Drainage for Reclaiming Saline-alkali Soils in Coastal RegionYU Shu-hui, LIU Jin-tong, LIU Hui-tao, TAN Li-mei, HAN Li-pu, BAI Lu42-4610Dynamic Change and Influence Factors of Soil Eh in the Paddy Field During the Drying and Rewetting Cycles in Yellow River Irrigation Area of Ningxia Autonomous RegionWANG Ming, ZHANG Qing-wen, YANG Zheng-li, ZHANG Ai-ping, XIE Xiao-jun, XI Jin-zhuo47-5111Effects of Plastic Film Residue on Growth and Yield of MaizeXIN Jing-jing, SHI Hai-bin, LI Xian-yue, LIANG Jian-cai, LIU Rui-min, WANG Zhi-chao52-5412Water Supply Scheme in Urban District of Guiyang and Gui'an New AreaHAO Zhi-bin, SHANG Chong-ju, YANG Rong-fang55-5813Integration Mode of Low Pressure Pipeline Irrigation Technology in Jiangsu ProvinceWANG Meng, FENG Zhao-yun, LIU Jian-hua, ZHOU Ming-yao59-6314Simulation of SAR/EC and Water Temperature on Soil Erosion of Western Liaoning Cinnamon under Furrow IrrigationFAN Hao-ming, LIU Shuang, WANG Lian-xiao, QIU Bi-ying64-6715Characteristics of Sand Soil Water and Salt Movement under Brackish Water Infiltration with Different Mineralization DegreesLIU Ting-shan, GAO Yan-ming, LI Jian-she68-7216Simulation of Soil Salinization Based on T-PROGSYANG Qi-yong, YANG Jing-song, LIU Guang-ming, YAO Rong-jiang, YU Shi-peng73-7717Study on the Layout Rationality of Wells in Henan ProvinceHU Huai-liang, QIN ke-li, ZHANG Guo-cen78-8218Sensitivity Analysis of Water flow Movement under Border Irrigation on the Surface RoughnessZHAO Xin, LU Jian, JIAO Xi-yun83-8519The Impacts of Nitrogen on Antioxidant Enzyme Activities and Yield of Japonica Rice under Different Irrigation ModesZHNAG Hao-zheng, ZHAO Hong-wei, CHEN Bin-bin, ZHAO Zhen-dong, ZOU De-tang, LV Zhi-chao86-9120Sugarcane Leaf Water Potential Model Based on Canopy Spectral SignatureCHEN Hai-bo, LI Jiu-hao, YU Chang-hong, LIU De-can92-96 