Journal of Jishou University(Natural Sciences Edition) ›› 2022, Vol. 43 ›› Issue (6): 38-44.DOI: 10.13438/j.cnki.jdzk.2022.06.008

• Resources and Environment • Previous Articles     Next Articles

Comprehensive Evaluation and Spatial Distribution Characteristics of Soil Fertility in Xiangxi Prefecture

PENG Huan,ZHOU Ying,ZENG Hanyong,LUO Jin,LI Qiang,HE Jianwu   

  1. (1.Agricultural Product Quality Inspection and Testing Center,Xiangxi Tujia and Miao Autonomous Prefecture,Jishou 416000,Hunan China;2.Forestry Bureau,Xiangxi Tujia and Miao Autonomous Prefecture,Jishou 416000,Hunan China;3.National & Local United Engineering Laboratory of Integrative Utilization Technology of Eucommia ulmoides,Jishou 416000,Hunan China;4.College of Biology and Environmental Sciences,Jishou University,Jishou 416000,Hunan China)
  • Online:2022-11-25 Published:2023-01-10

Abstract: The comprehensive evaluation of soil fertility in Xiangxi autonomous Prefecture provides a basis for improving soil fertility and building high-quality farmland.Soil pH,organic matter,total nitrogen,available phosphorus,and available potassium were selected as evaluation indicators,combined with the index summation method,a comprehensive evaluation system of soil fertility is constructed,and the soil fertility is comprehensively evaluated.The results showed that the soil pH in Xiangxi Prefecture is acid,there is slight soil acidification,the content of organic matter is high,the content of total nitrogen is moderate,the content of available phosphorus and available potassium vary greatly,and the average content was high.The proportion of soil area with grade I,II,III and IV fertility in Xiangxi Prefecture was 17.66%,17.62%,8.21% and 56.51% respectively.

Key words: grade of soil fertility, spatial distribution characteristics, comprehensive soil fertility evaluation

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