Introduction to cumulative effect sizes and total heterogenetity in meta-analysis Effects of Leaf Number of Stock or Scion in Graft Union on Scion Growth and Development of Soybean A modeling analysis for the effect of the changing landscape structure in Sihu W atershed in Hubei Province on the lakes‘ water level in flooding period Dynamic assessment of the cumulative ecological effects from Xiamen Bay city development Theory and method of ecological risk assessment for mining areas based on the land destruction