安徽农业科学2024，Vol.52Issue(17)：61-65,5.DOI:10.3969/j.issn.0517-6611.2024.17.013
水分梯度对麦冬种植土壤碳氮磷生态化学计量的影响
Effect of Water Gradient on the Ecological Stoichiometry of Soil Carbon,Nitrogen and Phosphorus in Ophiopogon japonicus Plant
摘要
Abstract
The experimental water gradient(10%,30%,70%,100%,W/W)was controlled by the potted plant test,and the growth charac-teristics of Ophiopogon japonicus,and the soil carbon(C),nitrogen(N)and phosphorus(P)ecological stoichiometry,phosphorus forms and phosphatase activity were measured,and the correlation relationships between different measurement parameters were analyzed.The results showed that with the soil moisture content increasing,the total organic carbon and total nitrogen decreased in the soil,while total phosphorus increased,and the phosphorusformshad no significant correlation with the soil moisture content.The C/N,C/P,N/P were 8.79-10.46,15.95-18.68 and 1.53-2.15,respectively,and their response characteristics to water gradient,belong to weak variants,were variant.The soil alkaline phosphatase activity under 30%water treatment was significantly higher than that under other groups(P<0.05),and the propor-tion of directly available phosphorus was 52.76%,which was higher than other water groups.The biomass,total root length and total phos-phorus in the leaf of Ophiopogon japonicus under 30%water treatment were significantly higher than other treatment groups(P<0.05).The root area and chlorophyll content were slightly higher than those in the 70%water group(P>0.05)and significantly higher than those in the 10%and 100%water group(P<0.05),and the growth of Ophiopogon japonicus was inhibited under 100%water gradient.30%water gradient was conductive to improving soil quality and the utilization of soil carbon,nitrogen and phosphorus,increasing soil nitrogen accumulation and conductive to Ophiopogon japonicus growth.关键词
水分梯度/土壤碳氮磷/生态化学计量/麦冬Key words
Water gradient/Soil carbon,nitrogen and phosphorus/Ecostoichiometry/Ophiopogon japonicus分类
资源环境引用本文复制引用
税军华,邵哲闻,向可心,张萌,刘平,黄应平,袁喜..水分梯度对麦冬种植土壤碳氮磷生态化学计量的影响[J].安徽农业科学,2024,52(17):61-65,5.基金项目
宜昌市森林资源监测站项目(SDHZ2020313) （SDHZ2020313）
高等学校学科创新引智计划项目(D20015) （D20015）
三峡大学高等教育研究项目(GJ2223). （GJ2223）
