干旱地区农业研究2013，Vol.31Issue(1)：157-160,4.
毛乌素沙地樟子松人工林土壤微生物数量变化
Changes of soil microorganism of artificial Pinus sylvestris var.mongolica in Mu Us sandland
摘要
Abstract
Soil microorganism of artificial Pinus sylvestris var. mongolica in Mu Us sandland were measured. The results showed that: soil bacteria, soil actinomycetes and soil fungi of different plantation ages of artificial Pinus sylvestris var. mongolica were different, soil bacteria and soil fungi increased as the plantation age went by; soil actinomycetes rose significantly during the CK, 7~23 year period, and it peaked at the 23rd year and dropped apparently at the 31rd year. The three types of microorganism decreased as the soil depth deepened, and the distribution of them in different dune parts presented as: interdune land 〉 leeward slope 〉 windward slope 〉 dune tops. After artificial Pinus sylvestris var. mongolica was established on the wind-drift sand, the number of soil microorganism rised, soil fertility level was increased.关键词
土壤微生物/樟子松固沙林/毛乌素沙地/榆林沙区Key words
soil microorganism/ sand-fixing Pinus sylvestris var. mongolica/ Mu Us sandland/ Yulin sandy area分类
农业科技引用本文复制引用
李陆平,廖超英,李晓明,孙长忠,段民富,杨晓娟..毛乌素沙地樟子松人工林土壤微生物数量变化[J].干旱地区农业研究,2013,31(1):157-160,4.基金项目
国家自然科学基金项目(30670339) （30670339）
