To accurately simulate the Gross Primary Productivity (GPP) and evaluate the impact of drought on GPP at a regional ….05) from 2011—2020. SPI can well monitor the occurrence of drought in the Liulin watershed, and SPI showed an increasing trend … GPP showed a significant increasing trend, the time lag and cumulative effects indicate that drought has a long …

Dryland ecosystems are generally drought-stressed and have low soil fertility. While the negative effects of drought on … vegetation productivity are undisputed, it is unclear whether drought limits vegetation productivity alone or in combination with … with drought stress, but not with N availability along aridity gradients, indicating that GPP in these ecosystems was …