Spatial-temporal variation and driving mechanism of vegetation carbon and water use efficiency in Heilongjiang Province, China.

作者：Yumin Li, Xueqing Wu, Ye Yuan, Lingbo Dong · 发表于：PubMed · 年份：2024 · DOI：10.13287/j.1001-9332.202412.006 · 研究领域：Environmental and Agricultural Sciences、Environmental Changes in China

, respectively, with high values in north and south and low values in east and west. During 2001-2020, 54.8% of vegetation CUE in the study area showed an increasing trend, and 59.6% of vegetation WUE showed an increasing trend. The increases of both CUE and WUE were highest in woodland and lowest in cropland. Vegetation CUE and WUE were negatively correlated with temperature and positively correlated with precipitation. The contribution rates of climate change and human activities to vegetation CUE were 46.6% and 53.4%, and the contribution rates to vegetation WUE were 42.3% and 57.7%, respectively.