利用光谱技术监测土壤主要养分含量潜力分析  

Potential Analysis on Monitoring Soil Nutrient Content Using spectroscopic techniques

作　　者：卢艳丽[1] 白由路[1] 王贺[1] 王磊[1] 杨俐苹[1] 

机构地区：[1]中国农业科学院农业资源与农业区划研究所,农业部作物营养与施肥重点实验室,北京100081

出　　处：《土壤通报》2012年第3期756-760,共5页Chinese Journal of Soil Science

基　　金：中国农科院农业资源与农业区划研究所中央级公益性科研院所基本科研业务费专项资金;国家科技支撑计划(2008BADA4B03)资助

摘　　要：土壤有机质、氮、磷、钾等养分信息是土壤肥力高低的主要体现者,传统的化学测定方法繁琐、费时费力,并且结果滞后不能满足生产管理的需要。光谱技术的发展为方便、快速、无污染地监测土壤中的主要养分含量提供了有力工具。本文首先介绍了土壤光谱特征及主要影响因子,然后分别针对土壤有机质、氮、磷和钾的光谱的研究现状进行了综述和分析,并提出了目前土壤养分定量光谱预测面临的主要问题,最后对基于光谱技术的土壤养分定量化预测的潜力和应用前景进行了分析并提出了今后的研究方向。Soil organic matter（SOM）,nitrogen（N）,phosphorus（P） and potassium（K） are the main reflectors of soil fertility.Chemical method for soil nutrients is cumbersome,time-consuming,laborious,and the hysteretic results can not meet management needs.The development of spectroscopic techniques provided a powerful tool for conveniently,rapidly and pollution-freely monitoring soil nutrients.This paper first introduced the soil spectral characteristics and its influencing factors,and then that research status of the spectral inversion for SOM,N,P and K were reviewed and analyzed respectively.Furthermore,the main problems were proposed for quantitative prediction of soil nutrients using spectroscopic techniques.Finally,it analyzed the prediction potential and application prospect,then proposed the research emphases of soil nutrients monitoring using spectroscopic techniques.

关 键 词：土壤 养分 光谱 应用前景 

分 类 号：S158.2[农业科学—土壤学]