Monitoring impact of heavy metal on wheat leaves from sewage irrigation by hyperspectral remote sensing

摘要

Sewage irrigation is one of the methods to solve water shortage in north China Plain. The wastewater usually come from urban domestic and industrial sewage, inappropriate sewage irrigation can pollute soil and crops by heavy metal depositing. Thereby impact on health of humanbeing indirectly. This paper try to monitor the impact of heavy metal on wheat leaves by hyperspectral remote sensing. Results showed that content of heavy metal in study area such as copper, zinc and lead is higher than comparing site which irrigated by groundwater, but lower than the standard made by country. Using linear regression analysis, we can find the correlation coefficient between content of heavy metal and spectral reflectance, and monitor the heavy metal in vegetation by remote sensing.