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中文摘要：
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。
英文摘要：
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.
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