农业现代化研究2025，Vol.46Issue(1)：174-181,8.DOI:10.13872/j.1000-0275.2024.1772
我国东部典型气候区土壤全磷及其活性组分含量特征
Characteristics of total phosphorus content and its active components in soils of typical climate zones in eastern China
摘要
Abstract
Soil phosphorus and its forms play a crucial role in farmland fertilization management and optimizing phosphorus utilization efficiency.This study focused on four climate regions in eastern China(mid-temperate,warm-temperate,subtropical,and tropical zones)to analyze the content characteristics of total phosphorus(TP),available phosphorus(Olsen P),and microbial biomass phosphorus(MBP)under different land use types(forest land,dry land,and paddy fields).The results revealed that soils in the warm-temperate zone had relatively high TP but lower Olsen P and MBP,likely due to phosphorus fixation under high pH conditions.In contrast,soils in the mid-temperate and tropical zones exhibited lower TP but higher Olsen P,attributed to high organic matter content in the mid-temperate zone and enhanced phosphorus transformation under high temperature and humidity in the tropical zone.Subtropical soils had the lowest TP and Olsen P levels,possibly due to heavy rainfall and fixation by soil iron and aluminum oxides.Across land use types,farmland soils generally had higher TP,Olsen P,and MBP compared to forest soils.In the mid-temperate zone,paddy fields had higher Olsen P but lower MBP than dry lands;however,no significant differences were observed between paddy fields and dry lands in the warm-temperate zone.In the subtropical and tropical zones,dry lands showed higher Olsen P and MBP levels compared to paddy fields.Overall,dry land soils demonstrated greater phosphorus availability and microbial phosphorus assimilation.Environmental factor analysis indicated that soil TP,Olsen P,and MBP were significantly correlated with soil organic carbon,mean annual temperature,and annual precipitation.This study provides scientific insights for optimizing phosphorus management strategies for farmland in eastern China.关键词
全磷/有效磷/微生物量磷/气候区/土地利用方式Key words
total phosphorus/available phosphorus/microbial biomass phosphorus/climate zone/land use type分类
农业科技引用本文复制引用
王军,许毅隽,段勋,涂强,何寻阳,张振华,苏以荣,陈香碧..我国东部典型气候区土壤全磷及其活性组分含量特征[J].农业现代化研究,2025,46(1):174-181,8.基金项目
国家重点研发计划项目(2023YFD1902802) （2023YFD1902802）
国家自然科学基金项目(42377348,42177295) （42377348,42177295）
湖南省自然科学基金项目(2024JJ2052) （2024JJ2052）
深圳市科技计划平台和载体专项筹建启动项目(ZDSYS20220303153551001).Supported by the National Key Technology Research and Development Program(2023YFD1902802) （ZDSYS20220303153551001）
National Natural Science Foundation of China(42377348,42177295) （42377348,42177295）
Natural Science Foundation of Hunan Province(2024JJ2052) （2024JJ2052）
Shenzhen Science and Technology Planning Platform and Carrier Special Preparation and Startup Project(ZDSYS20220303153551001). （ZDSYS20220303153551001）
