扬州大学学报（农业与生命科学版）2025，Vol.46Issue(1)：100-109,10.DOI:10.16872/j.cnki.1671-4652.2025.01.012
基于GIS和模糊数学法的凤冈县田坝村茶园土壤肥力质量评价
Soil fertility quality evaluation of tea garden in Tianba village,Fenggang county based on GIS and fuzzy mathematics
摘要
Abstract
Soil nutrient content and soil fertility quality play a decisive role in the yield and quality of tea.Therefore,the soil fertility status of tea garden in Tianba village of Fenggang county was clarified to provide a theoretical basis for guiding soil fertility management and fertilization in tea garden.The soil pH,organic matter(OM),total nitrogen(TN),alkali-hydrolyzed nitrogen(AN),available phosphorus(AP),available potassium(AK)and medium and trace elements Ca,Mg,Fe,Cu,Mn,Zn and Se in Tianba village tea garden in Fenggang county were analyzed and determined.The spatial variability of the soil was predicted by Kriging interpolation method using GIS and other systems.Fuzzy mathe-matics was used to calculate the membership value,and principal component analysis was used to calculate the weight val-ue of each index.Finally,the soil fertility comprehensive index of each sample point was calculated,and the soil quality of the tea garden in the study area was evaluated by the level of the comprehensive index of soil fertility.The results showed that:① Soil nutrient indexes were unevenly distributed in the sampling area.② The pH range of the soil was 3.98-5.07,which belonged to the acidic range and was suitable for tea planting;The contents of OM and AN were abundant,ranging from 37.40 to 66.84 g·kg-1 and 119 to 351.65 mg·kg-1,respectively,which reached the standard of high quality and high yield tea garden.The TN content ranged from 0.29 to 7.77 g·kg-1,and the content distribution was une-ven.The contents of AP and AK were in the middle and upper class,3.37-123.14 and 87-225 mg·kg-1,respectively.The available Cu content ranged from 1.34 to 64.10 mg·kg-1.The contents of available Fe,Mn and Zn were 35.89-190.45,38.25-236.50,37.34-106.75 mg·kg-1,and the contents of exchangeable Ca and Mg were 3 194-5 137.5 and 662.25-1 749 mg·kg-1,respectively.All reached a very rich level;Total Se content was 1.01-2.68 mg·kg-1.③ The comprehensive soil fertility index of the tea garden in Tianba Village of Fenggang County was 0.68-0.97,all of which reached the grade Ⅱ,indicating that the soil fertility of the study area was high and suitable for the construction of high-quality tea gardens.However,the application of Ca,Mg,Cu,Fe and Mn should be moderate,so as to avoid detri-mental impacts.关键词
茶园/GIS/模糊数学/土壤肥力质量/综合评价Key words
tea garden/GIS/fuzzy mathematics/soil fertility quality/comprehensive evaluation分类
农业科技引用本文复制引用
杨兰珍,陈辉,唐越岳,赵福林,何腾兵..基于GIS和模糊数学法的凤冈县田坝村茶园土壤肥力质量评价[J].扬州大学学报（农业与生命科学版）,2025,46(1):100-109,10.基金项目
国家重点研发计划项目(2022YFD1901500、2022YFD1901505) （2022YFD1901500、2022YFD1901505）
农业农村部科技教育司科研项目(13220083) （13220083）
