Abstract:To obtain statistical data on livestock and poultry, the large-scale culture of spatial information and the area ratio method was used. Based on this result, the amount of livestock manure and pure nutrient was estimated, the environment influence of livestock manure to soil was studied, and livestock manure to soil environment pollution was explained by the content and variation of available phosphorus in topsoil and subsoil. Finally, the accuracy and rationality of this method used in Daxing District in Beijing was confirmed. Phosphorus load of farmland was 93.72kg/hm2 in Daxing District in 2005, which 57.56kg/hm2 contributed by large-scale culture. The content of available phosphorus in topsoil and subsoil was higher than background value, the coefficient of variation in available phosphorus in topsoil and subsoil respectively was 72.66%, 79.12%, and the enrichment coefficient was 2.31, which proved the influence degree of livestock manure by large-scaled culture to soil environment pollution.
阎波杰, 赵春江, 潘瑜春, 王妍. 规模化养殖畜禽粪便量估算及环境影响研究[J]. 中国环境科学, 2009, 29(7): 733-737.
YAN Bo-Jie, ZHAO Chun-Jiang, PAN Yu-Chun, WANG Yan. Estimation of the amount of livestock manure and its environmental influence of large-scaled culture based on spatial information.. CHINA ENVIRONMENTAL SCIENCECE, 2009, 29(7): 733-737.