安徽农业科学2011，Vol.39Issue(36)：22528-22532,5.
云南蒙自坝子主要作物需水量及灌溉需水量研究
Research on Main Crops Water Requirement and Irrigation Requirement in Mengzi Basin of Yunnan
摘要
Abstract
According to monthly weather data and the corresponding crop data as well as CROPWAT software of Mengzi Meteorological Station in central Mengzi Basin,crop water requirements and irrigation water use are calculated. By frequency analysis,irrigation water requirement was get for different guaranteed rates. The results show that: average crop water requirements of rice, corn, potatoes, tobacco and groundnuts were 696.2,427.7,517.8,414.0 and 469.0 mm, respectively,crop water dispersion coefficient was small ,period effective rainfall during crop growth was much,so irrigation water demand was smaller,but rice needed much irrigation water to meet the requirement of soaking field and leakage. While the multi-year average crop water requirements were 394. 8,412. 5,476. 2 mm,respectively,for small spring crops of broad beans, wheat, rape. Because the effective rainfall for these crops during growth period was relative less, crop irrigation water requirements for small spring crop was much. Sugarcane and vegetables were plants around the year,so the crop water requirement was high, which reached 1 308. 3 and 1 186. 9 mm,respectively,and irrigation water requirements were the second and third largest. The study provided theoretical basis for crops* structural adjustment and irrigation program formulation of Mengzi Basin.关键词
蒙自坝子/作物需水量/灌溉需水量/CROPWAT软件Key words
Mengzi Basin/ Crops water requirement/ Irrigation requirement/ CROPWAT software分类
农业科技引用本文复制引用
王新华,郭美华,范春梅..云南蒙自坝子主要作物需水量及灌溉需水量研究[J].安徽农业科学,2011,39(36):22528-22532,5.基金项目
国家自然科学基金项目(50869009) （50869009）
云南省教育厅科学研究基金项目(07C40152). （07C40152）
