| High effective rainwater harvesting to development high effective saving water agriculture and enhance availability factor of the irrigational water is a important measure that resolves the shortage of water resource, especially in the semi-arid area of china. "The technology of high effective rainwater harvesting in the semi-arid area" is a complete set of operative technology that collect rainwater to perform supplementary irrigation of farmland in the region which rainwater between 250 mm and 600 mm. It integrate, creative research and demonstrate the technology of rainwater collecting, irrigation technique, agricultural technique, biological technique, saving water farm machinery and management model. And It also provides the modal for the sustainable development of Agriculture, science and technology, economy of the 21 century for semi-arid raea in china. |