【摘要】 根据2002年的畜禽统计数量、畜禽粪便排泄量和氮素养分含量等数据,通过实际计算畜禽粪便中的氮素养分量的方法,分析了我国不同省区的各种畜禽粪便中氮素养分资源量、分布和去向。结果表明,各种畜禽相比,牛粪中的氮素养分量最大;省区间河南省的畜禽粪便中氮素养分量最多;据估算,畜禽粪便中有50%的氮素养分流失,50%的氮素养分回田利用;部分省区的单位面积畜禽粪便的氮素承载量已经超出了欧盟制订的农田有机肥氮的限制标准170 kg/hm2。更多还原

【Abstract】 According to the amount of animal and that of excretion and the N contents of domestic animal feces in 2002,the amount of N nutrient in all kinds of domestic animal feces was calculated,and the distribution and fate of N nutrient in different provinces of China were also analyzed respectively.The results showed: The N content in cows excretion was largest;The total N amount of animal excretion was most in Henan province;50% of the total N was lost and only 50% was recycled;The N loading of domestic animal feces per area has surpassed the 170 kg/hm~2 which was the confined value of the manure N for farmland in EU.更多还原