CAJ | 학술논문

以上海都市农业区域南汇新场镇果园村为例，通过测定施肥组和对照组，不同深度三层土壤溶液中可溶性总磷（DTP）和可溶性磷酸盐（DRP）的浓度，研究了桃园耕作层土壤磷素渗漏特征。结果表明，可溶性正磷酸盐能随降雨或灌溉而渗漏，但主要发生在表层，渗漏强度随土层深度增加而降低；表层磷素较低的土壤随降雨可溶性总磷（DTP）浓度逐渐降低。而施磷肥的土壤表层随降雨可溶性总磷显著升高，中层和底层则逐渐降低；所研究土壤可溶性磷含量均较高，对地下水的富营养化具有较大的潜在威胁。
이상해도시농업구역남회신장진과완촌위례，통과측정시비조화대조조，불동심도삼층토양용액중가용성총린（DTP）화가용성린산염（DRP）적농도，연구료도완경작층토양린소삼루특정。결과표명，가용성정린산염능수강우혹관개이삼루，단주요발생재표층，삼루강도수토층심도증가이강저；표층린소교저적토양수강우가용성총린（DTP）농도축점강저。이시린비적토양표층수강우가용성총린현저승고，중층화저층칙축점강저；소연구토양가용성린함량균교고，대지하수적부영양화구유교대적잠재위협。
In order to better understand the leakage characteristics of soil phosphorus in villages of an urban agricultural region,the concentration of soluble total phosphorus (DTP) and soluble phosphate (DRP) in different depth of three-layer soil solution about the fertilizing plot and the control plot were detected, and the phosphorus leakage characteristics of peach orchid arable layer soil were studied. The results showed that the soluble orthophosphate leakage with rainfall or irrigation, but mainly in the surface. Leakage intensity decreased with soil depth; soluble total phosphorus (DTP) concentration gradually reduces with rainfall in the soil with lower surface phosphorus. The surface of soil applied with P fertilizers has significant increased soluble total phosphorus during rainfalls, while soluble total phosphorus of middle and bottom layers gradually reduced; The soluble phosphorus of soil we studied were higher, which has a greater potential threat to cause groundwater eutrophication.