森林工程2018，Vol.34Issue(2)：45-49,5.
土壤理化性质对腐朽红松根部土壤微生物数量的影响
Effect of Soil Physical-chemical Properties on Quantity of Microorganisms in Rhizospheric Soil of Rotten Korean pine
摘要
Abstract
In order to study the relationship between quantity of microorganisms in rhizosphere soil of rotten Korean pine and soil physical-chemical properties, we collected the soil samples using cutting ring method from 22 rotten Korean pine, which were chosen randomly in the eighteenth compartment in Liangshui National Nature Reserve, and took the samples back to the lab. A part of soil samples were used to culture microorganisms by traditional methods, and the other part of samples were used to measure soil properties, then analyzed the experimental data statistically. The research showed that: ① Among soil microorganisms, there were the obvious differences in bacteria, actinomycetes and fungi. The number of bacteria, actinomycetes and fungi were ranked as follows: bacteria were predominant with the proportion of 94.333%~99.986%; actinomycetes were the next with the proportion of 0.010%~5.590%; and fungi were the least with the proportion of 0.001%~1.566%. ② The quantity of soil fungi, bacteria, and microorganism population was mainly affected by soil total nitrogen content, the contribution rate of soil total nitrogen content to the number of fungi was 45.1%, to the total number of bacteria and microorganism population was about 32.8%. The quantity of soil actinomycetes was mainly affected by soil total potassium content, and the contribution rate of soil total potassium content to the number of actinomycetes was about 67.1%. We expect to provide new ideas to protect Korean pine by preliminarily analyzing the distribution of soil microorganisms and its relationship with chemical and physical properties of soil.关键词
腐朽/红松/土壤微生物数量/土壤理化性质Key words
Rotten/Korean pine/quantity of microorganisms/soil physical-chemical properties分类
农业科技引用本文复制引用
曹延珺,徐华东,王立海,周涵婷,刘华..土壤理化性质对腐朽红松根部土壤微生物数量的影响[J].森林工程,2018,34(2):45-49,5.基金项目
国家自然科学基金项目(31570547) （31570547）
中央高校基本科研业务专项项目(2572015CB03) （2572015CB03）
黑龙江省自然科学基金面上项目(C201410) （C201410）
