西北林学院学报2012，Vol.27Issue(3)：12-16,5.DOI:10.3969/j.issn.1001-7461.2012.03.03
毛乌素沙地樟子松人工林对土壤微生物及酶活性的影响
Effects on Soil Microorganism and Enzyme Activities of Artificial Pinus sylvestris var.mongolica in Mu Us Sand Land
摘要
Abstract
Soil microorganism and enzyme activities of artificial Pinus sylvestris var. mongolica in Mu Us sand land were measured. The results showed that the soil microorganism and enzyme activities were different from different plantation ages. Compared with the wind-drift sand, the number of soil microorganism increased sharply, soil enzyme activities strengthened significantly. The number of soil microorganism showed a rising trend with the plantation ages, the incease rate peaked during the 6-20 year period, soil enzyme activities strengthened constantly in general. The number of soil microorganism and enzyme activities dropped gradually with soil depth, and achieved significant difference levels in the two indices of plantation age and soil depth. It was found that soil biological properties and soil fertility levels were improved gradually, after the establishment of artificial P. sylvestris var. mongolica plantation in the wind-drift sandy lands.关键词
土壤微生物/土壤酶活性/樟子松固沙林/毛乌素沙地Key words
soil microorganism/ enzyme activityi sand-fixing forestry/ Pinus sylvestris var. mongolica/ Mu Us sand land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..毛乌素沙地樟子松人工林对土壤微生物及酶活性的影响[J].西北林学院学报,2012,27(3):12-16,5.基金项目
国家自然科学基金项目(30670339). （30670339）
