HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (19): 23-29.doi: 10.14088/j.cnki.issn0439-8114.2022.19.004

• Resource & Environment • Previous Articles     Next Articles

Study on cultivated land grading method based on quality protection

WANG Ling-chao, TIAN Yan, SONG Yan-hua, WANG Zi-wei, FAN Peng   

  1. Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China
  • Received:2021-10-28 Online:2022-10-10 Published:2022-11-04

Abstract: The equalization evaluation methods and results in the technical support system of cultivated land quality protection and management in China can only reflect the differences of cultivated land quality at the macro level, but not at the microscopic level. Therefore, the technical support system can not meet the needs of farmland quality protection and management. Based on the achievements of cultivated land classification, the evaluation factors that could reflect the microscopic differences of cultivated land quality were added, the weighted caculation of the grading index was performed and the grade of cultivated land was carried out by index of usage classification and new grading factors. Through the statistical analysis of the grading index of cultivated land quality in 65 counties (cities) in Henan Province, it was shown that there was a high correlation between the grade and the usage classification, and the two had a relatively clear corresponding relationship, reflecting the characteristics of weighted correction, and ensuring that the level was comparable across the province. At the same time, the grades showed the microscopic differences in the quality of cultivated land, which complemented the macroscopic composition of the grade, improved the system of cultivated land quality protection results, and could provide more scientific and reasonable technical support for cultivated land quality protection and management.

Key words: farmland, grading method, index of usage classification, micro-scale differences, quality evaluation

CLC Number: