• 关键词：畜禽粪便  土地利用适宜性  地理信息系统  北京

• 基金项目：国家重点基础研究发展计划项目(No.2004CB418507);国家“十一五”科技支撑计划(No.2006BAD10B05);国家自然科学基金项目(No.20377040)

• 李帷
• 1. 北京师范大学环境学院水环境模拟国家重点实验室, 北京 100875; 2. 中国科学院地理科学与资源研究所, 北京 100101

• 李艳霞
• 北京师范大学环境学院水环境模拟国家重点实验室, 北京 100875

• 林春野
• 北京师范大学环境学院水环境模拟国家重点实验室, 北京 100875

• 董云社
• 中国科学院地理科学与资源研究所, 北京 100101

• 韩杰
• 北京城市系统工程研究中心, 北京 100089

• 韩伟
• 北京师范大学环境学院水环境模拟国家重点实验室, 北京 100875

• 摘要：以北京市为研究区域,基于GIS下采用权重线性加和模型(WLC),综合自然、环境、社会和经济等多因子,对北京市畜禽粪便土地利用的适宜性进行了定量分析.结果表明,北京市10个郊区县适合施用畜禽粪便的耕地面积为1605.3km₂,占耕地总面积的35.3%,主要分布在北京市的南部、东南部和中部地区.聚类分析将全市郊区划分为东南部、北部、西南部和中部4个区域.东南部和中部远郊平原区比较适合发展畜禽养殖业,目前的养殖量与最大承载量之间尚存在一定空间;但是由于城镇化的加快,可施用粪便的农田与居民区的安全距离成为影响粪便施用的主要因素,需要结合有效的管理措施以避免畜禽粪便土地利用的污染风险.北部和西南部远郊低山丘陵区应适度控制畜禽养殖业的发展,由于北部区县(延庆、怀柔、密云和平谷)河流密集,并分布有北京市的主要地表水源,故与水体的安全距离对该地区的耕地施用粪便有重要影响;应控制和减少土壤沙化及水土流失,同时建立滨岸缓冲带来控制畜禽粪便土地利用对水体的进一步污染,以达到经济发展和环境保护的双重目的.

• Abstract：This study aims to provide a manure application guide and a well-constructed livestock production strategy in Beijing.A GIS(Geographic Information System)based analysis of the land suitability for manure application was performed in Beijing.Suitable arable land for animal manure application was identified by a GISbased weighted linear combination(WLC)model.In addition,the degrees of land suitability for animal manure application were calculated according to biophysical,environmental,social and economic factors.According to the results,a farmland area of 1605.3 km²,accounting for 35.3% of the cultivated land in Beijing,is estimated to be suitable for animal manure application.This farmland is mostly distributed near the southern,southeastern and central areas of Beijing.The suburban area can be divided into four sub-regions by cluster analysis and their future loading capacity for animal manure application was forecasted.The results indicated that these four sub-regions are characterized by different future loading capacities,controlled by different factors.As a whole,the central and southeastern counties may have high future loading capacity for animal manure and thus be fit for animal production,due to the abundant farmland.The northern and southwestern counties,however,may have a limited future loading capacity for animal manure because the surface water sources for the city of Beijing are distributed in this area.Therefore,a moderate animal production in this area should be suggested.Finally,different manure management practices and livestock production strategies in Beijing counties are suggested to minimize the potential environmental risks caused by the animal manure.

• Key words：animal manure  land suitability for manure application  GIS  Beijing

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