Spatial and temporal patterns of freezing injury during winter in Huang-Huai Winter Wheat Area under climate change Spatial and temporal variations in ecosystems in the three northern regions of China, 2000-2010 Analysis on spatial and temporal pattern and the driving forces of ecological- economic efficiency for provinces on Chinese mainland Spatial and temporal pattern of Castanopsis fargesii seed rain in evergreen broad-leaved forest in Tiantong National Forest Park of Zhejiang,China Spatio-temporal variations of soil respiration in five typical plant communities in the meadow steppe of the western Songnen Plain, China Characteristics of spatial and temporal phenology under the dynamic variation of grassland in the Qinghai Lake watershed