Filters: Tags: SYRIA (X) > Types: Journal Citation (X)
1 result (9ms)|
Filters
Date Range
Extensions Types Contacts Categories |
In this study we present a technique to discriminate between climate or human-induced dryland degradation, based on evaluations of AVHRR NDVI data and rainfall data. Since dryland areas typically have high inter-annual rainfall variations and rainfall has a dominant role in determining vegetation growth, minor biomass trends imposed by human influences are difficult to verify. By performing many linear regression calculations between different periods of accumulated precipitation and the annual NDVImax, we identify the rainfall period that is best related to the NDVImax and by this the proportion of biomass triggered by rainfall. Positive or negative deviations in biomass from this relationship, expressed in the...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: AVHRR,
Climate,
Degradation,
Desertification,
Dryland,
|
