Data for: Saturation response of enhanced vegetation productivity attributes to intricate interactions

Evidence for the multifaceted responses of terrestrial ecosystems has been shown by the weakening of CO2 fertilization-induced and warming-controlled productivity gains. The intricate relationship between vegetation productivity and various environmental controls still remains elusive spatially. Her,e several inherent preponderances make China a natural experimental setting to investigate the interaction and relative contributions of five drivers to gross primary productivity for the period from 1982 to 2018 (i.e., elevated atmospheric CO2 concentrations, climate change, nutrient availability, anthropogenic land use change, and soil moisture) by coupling multiple long-term datasets. Despite a strikingly prominent enhancement of vegetation productivity in China, it exhibits similar saturation responses to the aforementioned environmental drivers (elevated CO2, climatic factors, and soil moisture). The CO2 fertilization-dominated network explains the long-term variations in vegetation pro...二氧化碳施肥效应诱导与气候变暖调控的生产力增长出现减缓，这为陆地生态系统存在多维度响应提供了佐证。植被生产力与各类环境调控因子之间的复杂关联，在空间尺度上仍尚未明晰。在此研究中，多项固有优势使中国成为天然实验场所，可通过耦合多套长期数据集，探究1982至2018年间五大驱动因子对陆地总初级生产力（gross primary productivity）的交互作用与相对贡献——五大驱动因子分别为：大气CO₂浓度升高、气候变化、养分有效性、人为土地利用变化与土壤湿度。尽管中国区域的植被生产力出现了极为显著的提升，但其对前述环境驱动因子（大气CO₂浓度升高、气候因子与土壤湿度）仍表现出类似的饱和响应特征。以二氧化碳施肥效应为主导的网络可解释植被生产力的长期变化……