遥感估测土壤元素技术体系建立的研究初探——以溧水水田土壤全氮为例  

Research on the founding of the technology system of the estimation of the soil elements using remote sensing——A case study of the total nitrogen in the rice field

作　　者：潘剑君[1] 刘世峰[1] 赵美芳[1] 

机构地区：[1]南京农业大学资源与环境科学学院,江苏南京210095

出　　处：《中国土壤与肥料》2010年第4期18-23,共6页Soil and Fertilizer Sciences in China

基　　金：江苏省自然科学基金项目"苏南农区土壤与水体质量宏观监测的方法技术体系研究(BK2006147)"

摘　　要：氮素是作物的主要限产因子之一。遥感监测土壤氮素营养对于及时快速掌握农田肥力状况,合理施肥意义重大。植被指数在监测地表植被覆盖中发挥着重要作用,水田植被覆盖种类单一,其它影响因素少,这使得通过植被指数监测水稻长势,间接监测土壤肥力状况变得可行。文章利用中巴-2号卫星的CCD的归一化植被指数对南京溧水县水田的土壤全氮含量进行了估测,表明遥感估测土壤氮素含量是有可能性的。文章并对遥感估测水田土壤全氮含量的技术体系进行了探索和研究,提出了一套遥感估测土壤元素含量的技术体系。The nitrogen content in the soil is the main factor affecting the yield of the crops.So the remote sensing is important in getting the fertility level of the cropland and plays an important role in the fertilization.The Normalized Difference Vegetation Index（NDVI）had made great contribution in the monitoring of the earth vegetation cover.The kind of the vegetation cover in the paddy field was single,with few other affecting factors which makes monitoring the soil fertility indirectly with the monitoring of the rice growth vigour using NDVI.The paper focused on the monitoring of the soil fertility of the paddy soil in the Lishui county,Nanjing city using the NDVI of the CBERS-2 CCD image.And the research showed that was possible.And the founding of the technology system of the estimation of the total nitrogen in the rice field using remote sensing was also researched,then a technology system was proposed.

关 键 词：遥感 全氮估测 土壤 中巴卫星-2 技术体系 

分 类 号：S153[农业科学—土壤学]