Space Division of Absorbing Livestock Manure Areas Based on Phosphorus Nutrient Demand of Crops in Farmlands
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    Abstract:

    [Objective] This paper tries to analyze the spatial division of absorbing capacity areas of livestock manure based on the nutrient demand of crops in Daxing district of Bejing City in order to provide supports for the treatment of livestock manure, the control of regional livestock feeding and spatial layout of livestock and poultry breeding.[Methods] The remote sensing technology was used to extract the spatial information of farmland, the space association index was used to analyze the spatial clustering of phosphorus nutrient demand of crops, and GIS spatial analysis technology was used to calculate and analyze the nutrient balance.[Results] In Daxing District of Bejing City, the spatial distribution of phosphorus demands of crops had significant spatial positive correlation on the whole. The most of farmlands belonged to the average level of absorbing capacity of livestock manure. The areas of high absorbing capacity of livestock manure mainly concentrated in towns of Yinghai, Xihong-men, Penggezhuang, and Weishanzhuang. The regions of low absorbing capacity of livestock manure mainly concentrated in towns of Caiyu and Beizangcun. The total of 8481 farmlands was divided into 83 regions, of which the average, maximum and minimum absorbing phosphorus nutrient of livestock manure is 1.10×106 kg, 9.75×105 kg and 2.38×103 kg respectively. The maximum and minimum absorbing phosphorus nutrient of livestock manure is 13.54×106 kg in Penggezhuang town and 9.54×105 kg in Yizhuang town.[Conclusion] This paper provides a method to quickly divide absorbing capacity areas of livestock manure and to calculate absorbing amount of livestock manure and visual expression.

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阎波杰,潘瑜春.基于农用地作物磷养分需求的畜禽养殖废弃物消纳区域空间划分[J].水土保持通报英文版,2015,35(6):316-321

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History
  • Received:October 28,2014
  • Revised:December 03,2014
  • Adopted:
  • Online: April 05,2016
  • Published: