[1]LI Linwei,CHEN Jiaying,ZHANG Yi,et al.Evaluation and Update of Cultivated Land Quality Based on Correcting the Coefficient of Classification[J].Research of Soil and Water Conservation,2015,22(03):295-299.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
295-299
Column:
Public date:
2015-06-28
- Title:
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Evaluation and Update of Cultivated Land Quality Based on Correcting the Coefficient of Classification
- Author(s):
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LI Linwei, CHEN Jiaying, ZHANG Yi, ZHANG Qing
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College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
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- Keywords:
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cultivated land quality evaluation; grade update; classification coefficient correction; the changed arable land
- CLC:
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F301.21
- DOI:
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- Abstract:
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For the purpose of maintaining the present situation of existing cultivated quality grading achievement, this paper analyzed the cases and reasons of cultivated land quality changes. It also discussed the methods and ideas of updating cultivated land quality evaluation. This paper used the agricultural land evaluation method to evaluate the quality-changing cultivated land with modifying the coefficient of land utilization and land economic under the guidance of land consolidation and evaluation theory. It built the corresponding cultivated land grade updating methods based on the different reasons of cultivated land changes. Then it completed the annual updates of cultivated land quality evaluations in Hannan of Wuhan City in 2012 based on the cultivated land quality investigation and evaluation results as a solid evidence in Hannan in 2010. This study stated that Hanan existing cultivated land decreased by 233.85 hectares in that year. The 49.08 hectares of newly reclaimed cultivated land were classified as the second or third level. The quality of the 1 669.29 hectares of cultivated land had been improved. This study confirmed the feasibility of the updating method and also provided theoretical and practical basis for national annual update of cultivated land quality grades.