<b>Fine root trait dynamics and their relationships with productivity across grasslands under extreme drought</b>

We experimentally removed 66% of growing season precipitation for four years in meadow, typical, and desert grasslands in northern China and evaluated the effects of multiyear drought on community-weighted means (CWMs) and functional diversity of fine root traits (first-order roots), and their relationships with aboveground net primary productivity (ANPP). Here, we uploaded these root traits, ANPP data and R code.本研究在中国北方的草甸草原、典型草原与荒漠草原设置了为期四年的控水实验，通过移除66%的生长季降水以模拟多年干旱胁迫，探究了持续干旱对细根性状（fine root traits，一级根first-order roots）的群落加权均值（community-weighted means，CWMs）与功能多样性的影响，及其与地上净初级生产力（aboveground net primary productivity，ANPP）的关联。本数据集包含上述细根性状数据、ANPP观测数据及配套的R代码。