SILIN: Risks and Opportunities

ABSTRACT

Recently, the development of new silviculture practices that better stimulate ecological processes has been of interest all over the world. Most current silvicultural techniques were developed for the production of wood from regeneration patterns, management to control interspecific competition until control the individual tree growth and quality in relation to stand density. Indonesia selective cutting and intensive planting (SILIN) has been established in forest management model for wood production with develop a range of specific silvicultural techniques, including rotation, harvesting, genetic improvement, environmental manipulation and pest disease control. Practically, harvesting trees from 40 cm of diameter and similar silvicultural treatment for various condition of logged over forests in SILIN technique resulted a number of environmental problems such as land degradation, biodiversity loss, low productivity of remaining forest and greenhouse gas emission. SILIN has been attracted great attention to produce more seedlings as well as large scale nurseries establishment and planting, however most of seedling came from wildings that have various quality depend on mother tree and time difference between fruiting season and collection resulted a various growth performance in the field. In terms of growth performance, growing space of intolerant species of dipterocarp on 3 m width of line and 2.5 m spacing in line stimulated optimum growth up to 3 years old, then decreased in increment by competition increase, both inter- and intra-specific competition. Wider growing space is required for optimum growth and to obtain production target in the end of rotation, but it will reduce biodiversity, stand productivity and stand density. Compared to other techniques, both planting in wider space, in open area and in monoculture technique, growth performance of species planting in SILIN indicates slower growth. The study conclude that the productivity of a forest is determined by the genetic capacity of the species for growth, by the environment in which it is growing, and it varies according to the stand development stage or stand age. Implementation of SILIN in logged over forest was not only costly and unsecure on financial return but also can reduce ecological function of forest ecosystems. Then, SILIN technique and its variant are generally not suitable for implementing in natural forest, but may be useful for dipterocarp forest plantation and rehabilitation of degraded forest areas.

Keywords: Sustainable forest management, silviculture, biodiversity, productivity, plantation

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Informasi Detil

Judul Seri

Proceeding INAFOR (International Conference of Indonesia Forestry Researchers) 2011

No. Panggil

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Penerbit

: ., 2012

Deskripsi Fisik

628-634

Bahasa

English

ISBN/ISSN

978-979-8452-45-1

Klasifikasi

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