Chapter 3

Topographic Reconstruction: The Theory and Practice

Terrence J. Toy

Terrence J. Toy

University of Denver, Denver, Colorado

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John P. Black

John P. Black

Environmental Strategies Corporation, Reston, Virginia

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First published: 01 January 2000
Citations: 3
Book Series:Agronomy Monographs

Summary

From a practical perspective, the objectives of topographic reconstruction include: compliance with laws and regulations, material management, creation of stable land platforms, water management, erosion control, and minimization of long-term maintenance. This chapter is concerned with material management and topographic reconstruction. Topographic reconstruction is a highly complicated enterprise subject to a myriad of laws, regulations, and on- site and off-site constraints. The challenge of topographic reconstruction is to produce landscapes and landforms that approximate a state of dynamic equilibrium under prevailing environmental conditions. A fundamental principal of topographic reconstruction is that the channel forms resulting from grading and shaping strongly influence the process rates operating within the channel and the transport of water and sediment. The cobbles have the effect of armoring the floor of the hillslope channel, trapping fine-textured material in the interstices, and deflecting erosive flow toward the periphery of the channel preventing concentration in an incision.