Yanjuan Yao

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The Fraction of Absorbed Photosynthetically Active Radiation (FAPAR, sometimes also noted fAPAR or fPAR) is the fraction of the incoming solar radiation in spectral range of solar light from 400 to 700 nanometers that is absorbed by plants. FAPAR can be derived from remote sensing measurements and a number of algorithms have been proposed to estimate this(More)
1. Introduction Since the 1990s, Lake Dianchiˈcalled as Āpearl of the plateauā and Āthe mother lakeā of Kunming city in Yunnan Province, has become more and more entropic. Excessive additions of phosphorus and nitrogen caused the rapid excessive growth of algae blooms, which appeared in a large area lasting for a long time resulting in the death and(More)
Soil is an important parameter on water quality and plays a key role in water quality evaluation, especially for inland water. Many remote-sensing methods have now been developed to reverse soil concentration [1]. However, in natural water, the existence of Chla damages the precision of soil concentration reverse. In order to study the Chla’s influence to(More)
Crop monitoring is an important aspect of remote sensing applications. In the operational agricultural applications of remote sensing generally the high spatial and high temporal satellite data is needed. But till now the advantages of high spatial and high temporal resolution still can not be realized in single sensor. Thus to combine the high spatial and(More)
Crop growth is affected by many factors and is an extreme complex process. Fortunately, there are some index can be used to indicate the growth process, such as leaf area index (LAI). The variability of LAI can integrate various conditions affecting plant growth and development . LAI is one of the key ecological parameters widely used in crop monitoring and(More)
Leaf area index (LAI) can be used to infer processes (e.g., photosynthesis, transpiration, and evapotranspiration) and estimate net primary production (NPP) of terrestrial ecosystems [1, . The variability of LAI can reflect various conditions affecting plant growth and development . However, the LAI application is limited for its low inverted accuracy. The(More)