Risk characteristics and control technology measures of drought disaster in Southern China

Analysis of water reserve changes in Yungui Sichuan region based on GRACE

“…From Figure 2, it can be seen that the changes in water reserves in the Yungui Sichuan region obtained from GRACE inversion and the GLDAS hydrological model inversion results show significant seasonal changes, with an increase in water-saving content in summer and autumn and a decrease in water-saving content in spring and winter. From the autumn of 2009 to the spring of 2010, the groundwater level in the study area dropped sharply, which was caused by the severe drought in the region [6,7] .…”

Drought characteristics and their impacts on vegetation net primary productivity in the subtropical China

“…The impact of regional ecosystem on environment and the response of regional ecosystem to climate change have been hot topics (Li et al, 2015;Yuan et al, 2017;Guo et al, 2020;Ji et al, 2022). However, few studies have specifically addressed the impacts of drought on vegetation productivity in the subtropical China, even though drought occurred frequently and have greatly affected the vegetation productivity (Zhang et al, 2017). It is important to study the drought impact on vegetation NPP in the subtropical China in order to provide a reference for estimating the carbon sink potential of China's forests, which is important for the national carbon neutrality goal by 2060.…”