草地植被指数及生物量的遥感估测

Vegetation Index and Biomass Estimation For Grassland

简要回顾了我国草地遥感技术的发展过程以及各阶段的主要特点,并对草地植物的反射光谱特征做了介绍。在阐述植被指数在草地科学领域的运用的同时,介绍了植被指数NDVI和RVI的特点,就NDVI和RVI在草地地上生物量估测上的运用做了初步的探讨。其结果表明,在目前草地生物量的估测领域植被指数NDVI运用较RVI广泛。

In thin paper, It was mainly run back the primary phases of technology and briefly introduced the spectral reflection characteristics pasture science remote sensing of grassland plants. Besides it compendious expatiated the traits of corresponding remote sensing phases. Additional, it was looked back the application of vegetation index in pasture science fields. And it also narrated the characteristics of vegetation index NDVI（ normalized difference vegetation index） and RVI （ ratio vegetation in- dex）. Finally it was discussed the relationship between vegetation index and grassland biomass. In the field of estimation for grassland yield, many researches indicated that the application of vegetation NDVI was prevalence than RVI.