Loss rate of net primary productivity under drought stress on the Yinshanbeilu of Inner Mongolia, China.

Introduction: The increasing intensity and frequency of droughts seriously threaten the structure and function of terrestrial ecosystems. In order to ensure the normal play of ecosystem service function under future stress, the temporal and spatial characteristics of ecosystem productivity response to drought need to be explored.

Methods: The net primary production (NPP) of vegetation in the Yinshanbeilu was calculated using the Carnegie-Ames-Stanford Approach (CASA) model, and subsequent study concentrated on the NPP's geographical and temporal variable characteristics.