| Integration and demonstration of the date micro-irrigation technology in the hilly of Shanbei |
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| DOI：10.7606/j.issn.1000-7601.2008.04.01 |
| Key Words: Loess Plateau slope-land micro-irrigation the balance development of economy and ecology water and soil conservation |
| Author Name | Affiliation | | WU Pute | Northwest A ＆ F University；ISWC Chinese Academy of Sciences and Ministry of Water Resources；The Native Irrigation Engineering Center of Yangling,Yangling, Shaanxi 712100, China | | WANG Youke | Northwest A ＆ F University；ISWC Chinese Academy of Sciences and Ministry of Water Resources；The Native Irrigation Engineering Center of Yangling,Yangling, Shaanxi 712100, China | | XING Xiaogui | Northwest A ＆ F University；ISWC Chinese Academy of Sciences and Ministry of Water Resources；The Native Irrigation Engineering Center of Yangling,Yangling, Shaanxi 712100, China | | ZHU Delan | Northwest A ＆ F University；ISWC Chinese Academy of Sciences and Ministry of Water Resources；The Native Irrigation Engineering Center of Yangling,Yangling, Shaanxi 712100, China |
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| Abstract: |
| Faced on the fact of water shortage and soil and water loss in the Loess Plateau slope-land date trees micro－irrigation technology system was developed by integrating the technology of rainfall runoff control the technology of slope-land the nanization and close planting date trees the technology of pluning trees and new micro-irrigation engineering．The demonstration field of the integration technology was built in hilly and ravine area of Loess Plateau （on the Mizhi county of Yulin in Shaanxi province）．The average yield of rate trees was 19 800 kg／hm2 which is two to three times compared with no-irrigated rate trees．The yield increased 30％ to 60％ and saved water more than 36％ compared to the pipe irrigation．The average yield is 4 500～6 000 kg／hm2 without irrigation and 12 000～15 000 kg／hm2 with pipe irrigation．The date trees theoretical evaportranspiration was determined by Penman-Monteith formula（438．8mm）；The suitable micro-irrigation amount of 396～1 320 m3／hm2 for general rainfall year was determined according to field experiment；The new design theory was proposed for slope-land low drip irrigation；a suitable enineering model was developed which is that low drip irrigation and three additional technology was used to the top of slope-land and surge root irrigation micro-spray irrigation and three additional technology was used to the bottom of slope-land. |
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