江苏省种植业系统氮磷耦合流动分析

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中图分类号X171文献标识码A

文章编号 0517-6611（2025）18-0084-04

doi：10.3969/j.issn.0517-6611.2025.18.018

Analysis of Coupled Nitrogen and Phosphorus Flows in the Planting System of Jiangsu Province

YUXiao-xi（hlfviot，jUesityj，Js;SateKyboatofitd source Research，Nanjing，Jiangsu 210023）

AbstractThisstudyokJngsuProvceaeaalytalregioByshesiinghstoicalliteratureandatistaldatamatealonalysisframeworkandanaccoutingmodelfornitrogenandphosphorusflowsintheplantingsystemwereestablished.Troughquantifinginput-output flows，soil retention，utilization efficiency，and N：P ratios，this research investigated the spatiotemporal variation patterns of coupled nitrogenandpophorusflwsinJiangsu’splantingsstefrotO19.efdingtoprovideprcticalsihtsandtchicalp portfordresitallldtntligtbdtalsetiall ment.

KeyWordsPlanting system;Nutrient management;Coupled nitrogen-phosphorus flows;Material flowanalysis

种植业是农业经济的支柱产业，也是人民生活的重要保障，氮磷养分是作物生长发育的必需元素。（剩余6188字）