土壤2016，Vol.48Issue(2)：409-413,5.DOI:10.13758/j.cnki.tr.2016.02.030
青海共和盆地不同人工灌木群落土壤碳密度研究
A Study on the Soil Carbon Density of Different Artificial Shrub Community in Gonghe Basin in Qinghai Province
摘要
Abstract
There were four kinds of typical shrub plantations in vegetation recovery areas of alpine desert in Gonghe Basin:Caragana korshinskii, Hippophae rhamnoides,Salix psammophila andSalix cheilophila. Results indicated that soil organic carbon density in the profile of 0 – 100 cm was 9.42, 6.73, 6.06, 4.56 and 3.67 kg/m2 for the shrub community ofHippophae rhamnoides,Salix psammophila,Salix cheilophila, Grassland, and Caragana Korshinskii, respectively. The soil underHippophae rhamnoides had the largest content of organic carbon, followed bySalix psammophila,Salix cheilophila, and Grassland, and the soil underCaragana Korshinskii had the lowest content of organic carbon. Both soil texture and stratified conditions changed with soil depth in the range of 0 – 100 cm under different types of community. Soil organic carbon density decreased with the increasing soil depth, and the soil in top layer of 0 – 10 cm had the greatest content of organic carbon. The soil organic carbon content at the bottom slope of forest than that of grassland.关键词
共和盆地/人工灌木林/土壤有机碳/土壤质地Key words
Gonghe Basin/Artificial shrub/Soil organic carbon/Soil texture分类
农业科技引用本文复制引用
尹书乐,王学全,李少华..青海共和盆地不同人工灌木群落土壤碳密度研究[J].土壤,2016,48(2):409-413,5.基金项目
国家“十二五”科技支撑课题项目(2012BAD16B0105)、林业行业公益项目(201404304)和国家自然科学基金项目(41130640)资助。 （2012BAD16B0105）
