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11.
Marcus Hardie Daniel Mendham Ross Corkrey Eko Hardiyanto Alen Maydra Sabar Siregar Rianto Marolop Alun Wibowo 《New Forests》2018,49(1):87-104
Indonesia’s pulp and paper industry needs a large area of sustainably grown plantations to support its continued development. Acacia mangium has been the key species underpinning the pulp and paper industries in Sumatra, however increased disease pressure on A. mangium is expected to require large-scale conversion of Acacia plantations to Eucalyptus in the near future. The effect of such a large scale change in plantation species on soil moisture, for both tree production, and catchment hydrology is unknown. In this study we sought to characterize the impacts of plantation species (Acacia or Eucalyptus) and nitrogen management, on soil moisture, soil water depletion and depth to groundwater under stands of Acacia mangium and Eucalyptus pellita over the first 2–3 years after establishment. The study was conducted in experiments at four sites in Sumatra, Indonesia. Soil moisture and soil water depletion were not influenced by plantation species or fertilizer treatment. Soil moisture content and soil water depletion were strongly influenced by shallow groundwater at two of the four sites, however depth to groundwater did not influence stem growth. Results from the field trials cautiously suggest that large scale conversion of Acacia mangium to Eucalypt species in these regions is unlikely to result in increased moisture stress, nor is conversion of plantation species likely to lead to substantial differences in catchment hydrology. This study demonstrated the importance of conducting multi-site studies when investigating biophysical relationships in forest/plantation systems. 相似文献
12.
This article portrays a case study in Yogyakarta, Indonesia which looks into the dynamic relationship between communities and the effectiveness of the implementation of community-based forest management (CBFM) policies and its programme, and particularly on how local institutions deal with the shifting dynamics of these policies. As there is currently an absence of research in this area, this research therefore focuses on how the local community implements policy, builds relationships with other stakeholders, and strengthens local community institutions.
CBFM has been implemented in Yogyakarta since 1995 and during that time, the central government has been changing the policy for five times. At this point, this article argues that CBFM should rely on local institutions and deal with the shifting dynamics of policies. The terms of institutions can be considered to include formal institutions, such as Constitution, government laws, charters, decrees and statutes, and informal institutions, such as code of conducts, customs, local knowledge and social expectations. Furthermore, in selected communities, it is clear that the local communities can apply their informal institutions as an important component and value of traditional systems and significantly involved in forest management sustainability and establish the formal institutions simultaneously. 相似文献
13.
Herry Purnomo Yurdi Yasmi Ravi Prabhu Linda Yuliani Hari Priyadi Jerome K. Vanclay 《Small-Scale Forestry》2003,2(2):277-292
International calls for sustainable development advocate that forest management should be carried out in a multi-stakeholder
environment. The importance of community participation is acknowledged in theIndonesian Act No. 41 on Forestry (1999). However, it is not clear how to achieve this in areas already allocated to a concession holder. Current regulations
offer little flexibility for concessionaires to develop site-specific management, or to involve local communities in forest
management. The research reported here examines the application of simulation techniques to explore scenarios of sustainable
forest management addressing those limitations. Several scenarios have been developed using multi-agent simulation to examine
social and biophysical issues. Of the four scenarios examined in this study, collaborative forest management involving both
the concessionaire and the local community appears to offer the most promising pathway toward sustainability.
The authors wish to acknowledge that this paper has been produced with financial support from Department for International
Development of the UK, and the Asian Development Bank under RETA Grant 5812 and CIFOR. The views expressed here are those
of the authors and can in no way be taken to reflect the official opinion of the donors or of CIFOR. The authors also thank
Bruce Campbell for his inputs to the paper. 相似文献
14.
Herry Purnomo Yurdi Yasmi Ravi Prabhu Stepi Hakim Amin Jafar Suprihatin 《Small-Scale Forestry》2003,2(2):259-275
Complex ecological and social processes in tropical forests imply that observations on any single element of the system do
not provide an adequate basis for sound forest management. A collaborative modelling process engaging all relevant stakeholders
led to a shared understanding of how to manage forests around Lumut Mountain, Pasir District, East Kalimantan. The model was
developed by identifying forest management objectives, building a conceptual model using a causal loop diagram, and defining
performance indicators. The model was then used to explore future scenarios to improve the well-being of local stakeholders
while maintaining forest quality. Finally, roles needed to implement the chosen scenarios were defined and assigned to individual
participants. This qualitative modelling process was found to be an effective way to assist the development of a collaborative
action plan.
The authors wish to acknowledge that this paper has been produced with financial support from Department for International
Development of UK, the Asian Development Bank under RETA Grant 5812 and CIFOR. The views expressed contained herein are solely
of the authors and do not necessarily reflect official views of the donors or of CIFOR. The authors would like to thank Richard
Dudley and Bruce Campbell for their inputs to the paper. 相似文献
15.
A simple step-wise procedure for predicting the course of stand development on log–log coordinates of stand density and quadratic mean diameter was presented based on a distance of measurement from the maximum size–density line of Acacia mangium. This procedure first predicts annual increment of diameter with a multiple linear regression having the distance, site index, and current diameter as independent variables, and then the associated mortality is calculated with the rate of reduction in stand density to the diameter growth derived from a fitted trend with the distance. The cumulative predictions, starting at 3 years after planting until 9 years of age, agreed well with the observations of group-age means of measurements calculated for the three levels of initial density. Contrasting trend of basal area growth between the three levels of initial density and those for their site index: the differences were decreasing in the former while they remained constant in the latter, was clearly illustrated with the procedure indicating a good potential for use in yield prediction. The simulations for stand growth under different spacing and thinning options were demonstrated in a stand density control diagram suggesting reasonable flexibility for practical application. 相似文献
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17.
Ahmad Maryudi Ani A. Nawir Dewi A. Sekartaji Purnomo Sumardamto Ris H. Purwanto Ronggo Sadono Priyono Suryanto Emma Soraya Djoko Soeprijadi Agus Affianto Rohman Rohman Slamet Riyanto 《Small-Scale Forestry》2017,16(1):119-131
Smallholder timber plantations may offer opportunities for farmers to increase their income. Nonetheless, such opportunities are often lost largely due to unfavorable regulations imposed on harvesting and marketing of timber. Adverse impacts are worsened because the regulations are not effectively communicated to smallholder farmers. We assessed the level of smallholder knowledge of existing regulations and found it very low. In part, this correlated to their socio-demographic characteristics. Poor literacy skills and a low level of education make it difficult for older farmers’ to increase their knowledge. This is compounded by the limited information channels that can reach the farmers. Improving smallholders’ knowledge by providing information concerning markets and regulations in a timely and clear manner could help smallholders exercise coping strategies and priorities when selling their timber that would in turn reduce the negative impacts of regulations. The roles of village authorities could be crucial. They are close to the smallholders and could channel the information. The government could provide training and incentives for them to be more active in communicating the regulations to the smallholders. 相似文献