摘要
试验研究了放牧绵羊粪便在内蒙古短花针茅草原土壤内的降解。结果显示:羊粪干物质的降解率为0.74mg.g-1.day-1,有机物质、C和N含量在一年的试验期间分别降解了25.0%、35.5%和16.6%;各成分间的降解有显著的相关性,其降解符合回归曲线方程为y=y0+a(1-e-bx);夏季是羊粪分解的主要时期。
The nutrient decomposition of grazing sheep ert steppe of Inner Mongolia. The results indicated that excreta in soil was investigated in the Stipa breviflora desdry matter decomposition of sheep dung was 0. 74mg g- 1 day^-1, and the contents of organic matter, C and N reduced 25.0 % , 35.5 % and 16.6 % , respectively within one year of experimental period. The decomposition of nutrients showed a significant correlation, and fitted the regression curve equation: y = y0 + a( 1 -e^-bx). Summer was the main period of sheep dung decomposition.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2013年第6期112-115,共4页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金(30960072
3116019)
内蒙古自治区杰出青年基金(2010JQ04)
国家公益性行业项目(200903060
201003019)资助
关键词
放牧绵羊
排泄物
荒漠草原
养分降解
grazing sheep
excreta
desert steppe
nutrient decomposition