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| Analysis of livestock and poultry waste generation from 2000-2014 in Henan |
| Received:May 04, 2017 |
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| KeyWord:livestock and poultry waste generation;amount applied per unit field area;loading capacity;Henan Province |
| Author Name | Affiliation | E-mail | | FU Qiang | College of Tourism, Henan Normal University, Xinxiang 453007, China
Institute of Geographic Science and Natural Resources Research, CAS, Beijing 100101, China | | | WU Gen-yi | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China | wugenyi99@163.com | | PAN Peng | Institute of Geographic Science and Natural Resources Research, CAS, Beijing 100101, China
Appraisal Center for Environment and Engineering, Ministry of Environmental Protection, Beijing 100012, China | | | WANG Wan-tong | College of Tourism, Henan Normal University, Xinxiang 453007, China | |
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| Abstract: |
| This paper focused on the analysis of livestock and poultry waste generation (LPWG) in Henan Province.Using previously established estimation models,this paper analysed the amount of waste,the rate of their application to land,and the loading capacity of cropland in order to study the characteristics of provincial animal waste generation.Based on the farming data from Henan Statistical Yearbook,Henan Survey Yearbook,and Henan Rural Statistical Yearbook,the amount of manure,urine,total phosphorus (TP),total nitrogen (TN),chemical oxygen demand (COD),Cu,and Zn from LPWG was calculated.In addition,the application rate and loading capacity of nitrogen and phosphorus per unit field area were calculated.The results shew that the characteristics of the amount of LPWG in Henan Province varied their own laws in different stages during 2000-2014.This paper divided this period into two stages:stageⅠ(2000-2005) and stage Ⅱ(2006-2014),consistent with the studies of Fu Qiang (2012) and Yang Fei (2013) on national scales.Total nitrogen and total phosphorus increased relatively quickly as compared to the other pollutants,and they increased steadily in stage Ⅱ.The level of TP,TN,and Zn increased faster than that of the other pollutants throughout the period,and Cu increased faster than the other pollutants in stage Ⅱ.In 2000-2014,the level of TN,TP,Cu,and Zn increased by approximately 60%,and the loading capacity of manure,urine,COD,TN,and TP increased by approximately 40%.Meanwhile,the average annual growth of TN and TP was approximately 4% and 3%,respectively.These results suggested that several considerations can facilitate the formulation of reasonable and sustainable strategies of Henan Province.Firstly,the stage of fast increment (stage Ⅰ) of LPWG in Henan Province was over,and the current stage of increment (stage Ⅱ),which was relatively stable,would continue for a long time.The formulation of regulations and governance policies should adapt to the current stage and last for a long time.Secondly,the animal waste management in Henan Province should focus on TN,TP,Cu,and Zn,because these pollutants increased at a higher rate.Thirdly,the loading capacity of nitrogen and phosphorus per unit field area was no more than 0.33 and 0.25,respectively from 2000-2014.Accordingly,only one-third of the cropland is needed to meet the disposal of animal wastes from livestock and poultry farming in Henan Province. |
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