Detailed operating instructions are described for SIMAC, a computerized forest simulation model which calculates the allowable cut assuming volume regulation for forests with intensively managed stands. A sample problem illustrates the required inputs and expected output. SIMAC is written in FORTRAN IV and runs on a CDC 6400 computer with a SCOPE 3.3 operating system. The conceptual basis of the SIMAC method is not discussed in detail.

During its 200-year history the concept of sustainable forest ecosystem management has been the object of scientific and political discussion, with varying degrees of intensity - promoted with vehement fervour during periods of social or economic crisis, and less intensely during periods of stability. This volume, which forms part of the book series Managing Forest Ecosystems, presents state-of-the-art contributions presented by 9 leading authors from North America, Europe, Australia, and Southern Africa. If technical knowledge is a constraint to the implementation of sustainable management, this book contains a wealth of information which may be useful to students and practitioners alike. The specific target readership includes company management, the legal and policy environment, and forestry administrators. This book's unique feature is its holistic approach which includes ecological, socio-political, and timber supply issues.