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当前位置: 首页 > 文章 > 种养结合生产区农田磷素平衡分析——以山东禹城为例 农业环境科学学报 2009,28 (07) 1444-1450
Position: Home > Articles > Phosphorus Budget of Farmland in Crop-Animal Mixed Farming Area:A Case Study of Yucheng County in Shandong Province Journal of Agro-Environment Science 2009,28 (07) 1444-1450

种养结合生产区农田磷素平衡分析——以山东禹城为例

作  者：
武兰芳;欧阳竹
单  位：
中国科学院地理科学与资源所
关键词：
磷素平衡;农田系统;区域尺度;种养结合;山东禹城
摘  要：
根据养分平衡理论对种养结合区禹城农田系统磷素盈亏状况进行了计算分析,结果表明,从1980年到2005年该区域农田系统的磷素输入、输出和盈余均呈现增长趋势,按耕地面积平均磷素输入量由35.8kgP2O5·hm-2·a-1增加到296.9kgP2O5·hm-2·a-1、磷素输出量由29.6kgP2O5·hm-2·a-1增加到148.0kgP2O5·hm-2·a-1,因为输入增加速度大于其输出增加速度,导致磷素盈余量由6.2kgP2O·5hm-2·a-1增加到148.9kgP2O·5hm-2·a-1;从空间差异来看,在11个乡镇中除2个乡镇的耕地表现为磷素亏缺外,其余9个乡镇的耕地均不同程度地呈现出磷素盈余,其中有1个乡镇的盈余量较低,按耕地平均为55.3kgP2O5·hm-2·a-1,有7个乡镇的盈余量按耕地平均都在100.0kgP2O5·hm-2·a-1以上,磷素盈余量最高的达到297.8kgP2O5·hm-2·a-1,远高于欧盟一些国家法令规定的农田磷素盈余限量标准。禹城农田系统磷素的大量盈余,主要源于化肥磷投入增加,特别是粪便磷的快速增长,所以,为了减少磷素盈余损失,应适量减少化肥磷投入,同时对粪便磷在区域内进行合理管理和调配施用。
译  名：
Phosphorus Budget of Farmland in Crop-Animal Mixed Farming Area:A Case Study of Yucheng County in Shandong Province
作  者：
WU Lan-fang,OUYANG Zhu(Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)
关键词：
phosphorus budget;farmland;regional scale;crop-animal mixed farming;Yucheng County,Shandong Province
摘  要：
On the basis of nutrient balance theory the phosphorus budget was analyzed for the farmland of crop-animal mixed farming area in Yucheng County,Shandong Province.The result showed that the input,output and surplus of phosphorus in the farmland had increased from 1980 to 2005.The input of phosphorus increased from 35.8 to 296.9 kgP2O5·hm-2·a-1,while the output of phosphorus increased from 29.6 to 148.0 kgP2O·5hm-·2a-1.The surplus of phosphorus increased from 6.2 to 148.9 kgP2O·5hm-·2a-1,which reflected that the increase rate of the phosphorus input was much higher than the increase rate of the phosphorus output.Geographically there were only 2 of 11 townships in Yucheng County where the deficit of phosphorus occurred.The other 9 townships exhibited the surplus of phosphorus ranging from 55.3 to 297.8 kgP2O·5 hm-2·a-1,and the surplus of phosphorus in the farmland of 7 townships was over 100 kgP2O5·hm-2·a-1.The surplus of phosphorus could be coursed by too much of phosphorus applied with mineral-fertilizers,especially overloading manure.In order to reduce the surplus and to prevent the loss of phosphorus in the region the fertilization should be managed properly,also the manure should be applied evenly within the region and time.

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