Efforts to establish causal relationships have led a number of researchers to develop techniques for assessing changes in marsh environments. Until recently these techniques for assessing changes in marsh environments. Until recently these techniques have been limited to measurements of planimetric change or land loss. However, The major difficulty with these techniques is their use in different marsh-estuarine environments without knowledge of their advantages, limitations, and levels of accuracy. This paper addresses this problem by evaluating a set of field techniques used for direct measurement of wetland sedimentation rates.