The analysis on the spatial-temporal change of climate aridity in Xilinguole Steppe The spatial-temporal change variations of temperature in Xilinguole steppe zone Influence of Low Temperature on Spatial-temporal Changes of Ca2+ in Winter or Spring Wheat Effect of anthropogenic disturbances on the temporal-spatial changes of landscape patterns at Taishan Mountain Landscape stability and its pattern transition in Jinghe watershed Impacts of high temperature on  maize production  and adaptation measures in Northeast China.