鄱阳湖及周边经济区表层土壤营养元素分布现状与丰缺评价

Distribution and Abundance or Deficiency Assessment of the Surface Soil Nutrient Elemnets in Poyang Lake and Its Surrounding Economic Area

本文通过对鄱阳湖周边经济区表层土壤中全氮、全钾、全磷及有机质含量的分布特征进行研究,依据土壤养分等级标准对该地区土壤养分进行评价。结果表明,该地区土壤中全氮和全钾含量总体属于适当—富足等级,而有机质在农业种植区含量普遍缺乏,全磷则总体缺乏,这两个项目应当视种植情况进行补充。该评价结果对地区农业区划、科学施肥和土壤改良提供了重要的地球化学依据。

In this paper,the author mainly expounds the distribution of the content of total nitrogen,total kalium,total phosphorus and the organic matter in the surface soil of the Poyang Lake and its surrounding economic area,and evaluate the area according to the grade standard of the soil nutrient.The results show that the content of total phosphorus and total kaliumin in the soil of this area is proper or abundant,and there is a general lack of organic matter and phosphorus in the agricultural plating area,both of which should be supplied in accordance with the agricultural paticular situations.The result can provide the important geochemical support rational agricultural programming,scientific fertilization and soil improvement.