Research Dry Crop and Irrigation Water Requirement in Environment Engineering

Xin Hua Wang; Mei Hua Guo; Hui Mei Liu

doi:10.4028/www.scientific.net/AMM.340.961

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 340Research Dry Crop and Irrigation Water Requirement...

Research Dry Crop and Irrigation Water Requirement in Environment Engineering

Abstract:

According to Kunming 1980-2010 monthly weather data and CROPWAT software and the corresponding crop data, crop water requirements and irrigation water use are calculated. By frequency analysis, irrigation water requirement was get for different guaranteed rate. The results show that: corn, potatoes, tobacco, and soybeans average crop water requirements were 390.7mm, 447.9mm, 361.8mm and 328.4mm, crop water dispersion coefficient is small, period effective rainfall during crop growth in most of the year can meet the crop water requirements, so irrigation water demand is small. While the multi-year average crop water requirements were 400.8mm, 353.5mm, 394.3mm for small spring crops of wheat, beans, rape. Because the effective rainfall for these crops during growth period is relative less, crop irrigation water requirements for small spring crop is much. Vegetables and flowers are plant around the year, so the crop water and irrigation water requirements are the largest.

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Periodical:

Applied Mechanics and Materials (Volume 340)

Pages:

961-965

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.340.961

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Online since:

July 2013

Authors:

Xin Hua Wang, Mei Hua Guo, Hui Mei Liu

Keywords:

Crop Water Requirement, CROPWAT Model, Irrigation Water Requirement, Kunming

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