Abstract At present, processing substantial livestock excreta produced by numerous concentrated small–middle-type livestock farms (SMLFs) has been a major problem of livestock farm owners and government departments. To solve this problem, this study established a suitability evaluation system for the spatial layout of a centralized treatment center of livestock excreta (CTCLE). On this basis, combined with the collection points of livestock excreta (CPLEs) determined by spatial clustering algorithm and median center and matched farmlands, the spatial site selection of CTCLE was analyzed using the geographic information system (GIS) spatial analysis method and GIS component development technology. Practical application research was conducted in Nantong Town, and pigs were used as examples. Results showed that most regions of Nantong Town belong to forbidden and unsuitable regions, accounting for 68.63% of the total region of the town. A small part of a highly suitable region (6.428 ha) was determined as potential CTCLE. A total of 839 SMLFs were divided into 61 CPLEs, and the spatial relation between potential CTCLEs and farmlands was established. The spatial sites of 11 CTCLEs in Nantong Town, Minhou County were selected, and the total nitrogen and phosphorus of livestock excreta to be reduced were estimated. The results will provide a scientific basis for the utilization of livestock excreta and the spatial layout planning of livestock and poultry breeding.

中文翻译：

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畜禽粪便集中处理中心空间选址——以南通镇为例

摘要 目前，处理大量集中中小型畜牧场（SMLFs）产生的大量牲畜排泄物已成为养殖场主和政府部门面临的主要问题。针对这一问题，本研究建立了畜禽粪便集中处理中心（CTCLE）空间布局适宜性评价体系。在此基础上，结合空间聚类算法确定的牲畜排泄物（CPLEs）采集点、中位数中心和匹配农田，利用地理信息系统（GIS）空间分析方法和GIS组件开发，对CTCLE的空间选址进行分析。技术。在南通镇进行了实际应用研究，以猪为例。结果表明，南通镇大部分地区属于禁区和不适宜区，占全镇总面积的68.63%。一小部分非常适合的区域（6.428 公顷）被确定为潜在的 CTCLE。将839个SMLFs划分为61个CPLEs，建立了潜在CTCLEs与农田的空间关系。选取闽侯县南通镇11个CTCLEs的空间位点，估算了需减少的牲畜排泄物总氮和磷。研究结果将为畜禽粪便资源化利用和畜禽养殖空间布局规划提供科学依据。将839个SMLFs划分为61个CPLEs，建立了潜在CTCLEs与农田的空间关系。选取闽侯县南通镇11个CTCLEs的空间位点，估算了需减少的牲畜排泄物总氮和磷。研究结果将为畜禽粪便资源化利用和畜禽养殖空间布局规划提供科学依据。将839个SMLFs划分为61个CPLEs，建立了潜在CTCLEs与农田的空间关系。选取闽侯县南通镇11个CTCLEs的空间位点，估算了需减少的牲畜排泄物总氮和磷。研究结果将为畜禽粪便资源化利用和畜禽养殖空间布局规划提供科学依据。