1. Institute of Plant Nutrition & Resource Environment, Henan Academy of Agricultural Sciences Zhengzhou China
2. International Joint Research Laboratory for Global Change Ecology, School of Life Sciences Henan University Kaifeng China
3. Yuanyang Experimental Station of Crop Water Use, Ministry of Agriculture Yuanyang China
4. Field Scientific Observation and Research Station of Water Saving Agriculture in the Yellow River Basin of Henan Province Yuanyang China
5. Henan Provincial Institute of Geology Zhengzhou China
6. Soil Physics and Land Management Group Wageningen University & Research Wageningen The Netherlands