Small Scale Irrigation Systems: A Training Manual. Planning--Construction--Operation and Maintenance of Small Scale Irrigation Systems. A Two-Week In-Service Training Program for Peace Corps Volunteers. Training for Development. Peace Corps Information Collection & Exchange Training Manual No. T-13.
Small-Scale Spatial Variability of Soil Nutrients and Vegetation Properties in Semi-Arid Northern China 1 1 Project supported by the National Key Basic Research Program (973 Program) of China (No. 2002CB111506), the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX3SW418), and the National Programs for Science and Technology Development of China (No. 2005BA517A03)