Advances in research on the effects of exclosure on grasslands Population regulation and dynamical simulation of annual plant Eragrostis poaeoides in desert region Analysis of spatial and temporal scales expansion of forest multi-objective management Responses of stem sap flow to meteorological factors and water evaporation at different time scales over Quercus variabilis plantation Analysis of ecological health status at time scale in sandy area Wavelet analysis of Chinas per capita ecological footprint from 1961 to 2005 Multiple time scales analysis of spatial differentiation characteristics of non-point source nitrogen loss within watershed. Characteristics of Juglans regia L. sap flow and its response to reference evapotranspiration on different time scales in the rocky mountain of North China