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A compilation of state of the art papers on key topics in bryology from invited speakers at the Centenary Symposium, University of Glasgow, 57 August 1996.
The sexiest lowland forests in Papua Indonesia, hosting many high-valued timber species, attract the country’s authorities to allocate 94% as production forests. The main aim is to manage the forests sustainably under a concessionaire system strongly requiring sustainable-sense protocols stated in the national silviculture system-TPTI. However, in many cases, the logging activities in the tropics fail to perform sustainability in production and ecological integrity due to unavoidable high harvesting intensity adopted in uniform cutting protocols. Therefore, comprehending an intact forest’s local-specific features helps develop an adaptable silviculture technique. The book elaborates on 143 species identified in two logging concessions of Papua and explains significant differences in the distinct primary forests formed by the species. It also reveals the individuals and species of commercial timbers left after logging. Furthermore, it presentably discusses the current logging impacts potentially changing the species’ relative abundance, downgrading the future degree of tree diversity and causing a massive timber volume reduction that fizzles out to enter the third cycle. Additionally, the state-of-the-art method of relating species’ slope structure with its sapwood content of δ15N and N is conceptually explained to classify 103 species by light-requirement trait. Therefore, it is a critical indicator for species selection in the enrichment planting of pre-grown seedlings and subsequent tending. Ultimately, including a combination of species-specific minimum cutting diameter in TPTI with the consequence of enlarging the concession area becomes the ambitious goal of this work.
WERNER KRAUSE INTRODUCTION GENERAL COMMENTS ON THIS VOLUME The subject" Application of vegetation science to grassland husbandry" is not limited by geographical boundaries. It is pro posed to cover this subject in an internationally applicable work of reference. However, to avoid omissions it would have to em brace all the diversity of grassland from the Arctic to the Equa tor. The term "application" requires that the papers contained herein take into account both generally relevant scientific knowl edge and the special needs of practical farming. The latter are not satisfied solely by the laws of vegetation science; the changing effects of the market, politics, the distribution of wealth and poverty, highly developed technology and the continued use of archaic farming methods must all be considered. To try to cover all this adequately in one volume of ap proximately 550 pages is a hopeless task. The editor and the authors had to limit themselves to presenting a selection of prob lems and attempts to solve them, with the aim that these exam ples should indicate how much vegetation science can contribute to grassland husbandry, and the scope of this contribution is broadened by the references quoted. The arrangement of the sections within this volume does not lend itself to specific suggestions for the management of individual systems. However, grassland husbandry can expect to obtain from this work an'insight into some overall general rela tionships, which could assist the adviser in the formulation of more specific improvement plans.