Lin, Chinsu; Dugarsuren, Narangarav (2015). Deriving the Spatiotemporal NPP Pattern in Terrestrial Ecosystems of Mongolia Using MODIS Imagery. PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 81(7), 587-598.

Abstract
Net primary production (NPP) is a carbon cycle process that is examined within terrestrial ecosystems. Exploring the distribution of nationwide NPP helps to diagnose the response of ecosystems to natural/anthropogenic influences and resource management. Based on the CASA model, the MODIS-NDVI-derived spatiotemporal pattern of Mongolian NPP was analyzed by factorial ANOVA and regression analysis. Results showed that the nationwide distribution of NPP was coincidence with the distribution of terrestrial ecosystems. During the growing season, the monthly-NPP average of every terrestrial ecosystem behaved temporally as an inverse-U shape that peaked in June/July and varied as a power and logarithm function of the monthly average temperature and precipitation respectively. The desert had an insignificant growth of NPP during the growing season, while the forest, grassland, and desert steppe had a significant positive-growth in April/June period and then a significant negative-growth in July/October. Interannual NPP showed insignificant change during a five-year period.

DOI:

ISSN:
0099-1112