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| Comprehensive evaluation on farmland leveling methods based on TOPSIS model |
| Wei Zhanmin, Li Zeming, Li Jiabao |
| Water Conservancy and Civil Engineering College of Inner Mongolia Agriculture University, Hohhot, Inner Mongolia 010018, China |
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Abstract A comprehensive evaluation of the two common leveling methods(laser leveling and traditional leveling method), based on the TOPSIS model was conducted on various specifications of sample plots in Hetao Irrigation District of Inner Mongolia. Firstly, the selection of samples from 2011 to 2013 and the collection of data was done, and the assessment parameters were confirmed. Then, an evaluation index system was built on the basis of estimation and test of each parameter. Thus, the TOPSIS model was utilized to evaluate the assessment index system comprehensively. Finally, the optimal cases for each sample was reached, and the practical analysis in Hetao Irrigation District of Inner Mongolia was finished. Results indicate that the appropriate leveling method is the traditional one when the area of fields are below 1 100 m2. The laser leveling methodology is superior to the traditional method if the field area is bigger than 2 000 m2. Only small differences can be observed once the field area is between 1 100 and 2 000 m2. By the comprehensive consideration, the laser leveling method can be ge-nerally better than the traditional one. Currently, the border irrigation is main method for Hetao Irrigation District in Inner Mongolia, and the acreage of those borders are small and ranges from 1 000 to 1 330 m2, and in some local area the acreage is less than 670 m2. This will limit not only the largely popularization of laser land leveling technology, but also the development of local agricultural economy.
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Received: 13 September 2013
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