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Land Use/Land Cover Changes of Ago-Owu forest reserve, Osun State, Nigeria Using Remote Sensing Techniques

Open Journal of forestry 2020年第4期10卷 401-411页

作者： Meshach O. Aderele Tomiyosi S. Bola David O. Oke Federal University of Technology Akure Nigeria University of British Columbia Vancouver Canada

Remote sensing (RS) and GIS are important methods for land use assessment and land cover transition. In this study, land use/land cover changes in the Ago-Owu forest reserve, Osun State, Nigeria have been assessed. Landsat 5 TM, Landsat 7 ETM+ and Landsat 8 OLI were acquired for 1986, 2002 and 2017 respectively. The three scenes corresponded to path 190 and row 055 of WRS-2 (Worldwide Reference System). The processing of the imagery was preceded by the clipping of the study area from the satellite image. The boundary of the reserve was carefully digitized and used to clip the imagery to produce an image map of the forest reserve. Using the supervised image classification procedure, training sites were used to produce land use/land cover maps. The same classification scheme was used for the 1986, 2002 and 2017 images to facilitate the detection of change. The differences in the area covered by the different polygons between the three sets of images were measured in km2. The results show that during 1986 and 2017, there is a dramatic increase of build-up areas with a change of 55.65 km2 and sparse vegetation (farmland and grassland) with a change of 53.97 km2, while a dramatic decrease of dense vegetation (forest areas) with a change of 109.61 km2. The consequence of these results is that over the years, the population of people living in the forest reserve has increased and many of them are engaged in farming, leading to an increase in farmland. In addition, logging activities continued unabated in the forest reserve, as demonstrated by a sharp increase in the deforested area within the reserve. The maps produced in this study will serve as a planning tool for the Osun State forestry Department to plan reforestation activities for the forest reserve.

关键词： Remote Sensing Landsat forest reserve Geographical Information System Land Use and Land Cover Changes

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Identifying Trees Species Dominance in Hulu Sedili forest reserve, Peninsular Malaysia Based on Lithology Type Using Geographic Information System

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Journal of Agricultural Science and Technology 2010年第4期4卷 77-82页

作者： I. Mohd Hasmadi K. Norizah M. S. Alias forest Surveying and Engineering Laboratory Department of Forest Production Faculty of Forestry Universiti Putra MalaysiaSelangor 43400 Malaysia

Lowland tropical forest in Peninsular Malaysia consist a valuable dipterocarp timber species. In fact, dipterocarp tree species growth well when the ecology is maintained and their growth are dependent on the micro climate and also affected by lithology types. This study was carried out to identify and map tree species dominancy by lithology types at Hulu Sedili forest reserve （HSFR） using Geographic Information System （GIS） technique. Different lithology type maps were derived namely Igneous, Sedimentary and Limestone. Through GIS operations tree species data collected from pre-felling inventory and ground survey were overlaid with lithology features. Results showed that at Sedimentary and Igneous types, the presence of dipterocarpaceae family is only 3.09%, and non-dipterocarpaceae family was 96.91%. Syzygium spp. （19.83%） was the most abundance in Igneous and Sedimentary. Meanwhile, Elateriospermum tapos （9.92%） and Lauraceae＇s family （7.22%） were found to be the most dominant species in Sedimentary types, Macaranga spp. （11.21%） and Elateriospermum tapos （11.02%） in igneous types. However, a Limestone type was discarded from analysis due to unavailable pre-felling data. Thus, this study indicated that there was variation in species dominancy of different lithology types. On the other hand, GIS demonstrated its capability as a useful tool in identifying and maps the location of trees species based on lithology types.

关键词： GIS (Geographic Information System) forest reserve lithology types dominance species mappmg

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How to Use Tourism to Support Sustainable forest Management： A Case Study of the Pha Wang Nam Khiao - Pha Khao Phu Luang forest reserve, Thailand

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Journal of Tourism and Hospitality Management 2017年第3期5卷 126-134页

作者： Sangsan Phumsathan Sommai Udomwitid Nantachai Pongpattananurak Thitiwoot Chaisawataree Waranan Tantiwat Kasetsart University Bangkok Thailand

The primary objectives of this research focused on developing a sustainable tourism model for the Pha Wang Nam Khiao - Pha Khao Phu Luang forest reserve in order to sustain forest area and develop local community simultaneously. The sustainable tourism model was created based on site potential, stakeholders＇ opinions, and cost-benefit analysis. The results showed that the destinations were ranked in high potential for tourism development. The majority of tourists paid attention to forest resources education program and sport outdoor activities. Benefit-cost ratio （BCR） equaled to 1.81 and internal rate of return （IRR） equaled to 16.38, showing suitability and worthiness for developing tourism in Wang Nam Khiao forest reserve. Tourism development strategies have been proposed, including：（1） developing facilities and services for conservation and sustainable tourism; （2） personnel training for sustainable development; and （3） tourism marketing for niche market.

关键词： tourism model sustainable tourism forest reserve Thailand

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Drivers of Land Cover Dynamics for Pugu and Kazimuzumbwi forest reserves in Kisarawe, Tanzania

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Open Journal of forestry 2016年第5期6卷 348-360页

作者： Makarius Victor Mdemu Marco Mathias Burra Department of Regional Development Planning Ardhi University Dar es Salaam Tanzania Department of Urban and Regional Planning Ardhi University Dar es Salaam Tanzania

forests that are close to growing urban centres have been subject to constant deforestation and degradation from various factors. This study assesses the drivers of land cover dynamics in Pugu and Kazimzumbwi forest reserves in the context of urban and peri-urban expansion of Dar es Salaam for the past three decades. The study adopted review of relevant literature and household survey from three settlements surrounding the forest reserves. One hundred and fifty (150) households were collected from Buyuni, Chanika and Masaki in Ilala and Kisarawe and administered with semi-structured questionnaire to collect information on migration, use of forest products by communities and perception on climate change and variability. SPSS computer program was used to analyse the questionnaire data while tables and graphs were adopted for presentation of the results. Rural-urban and internal urban migration in Dar es Salaam was identified as one of the primary drivers of land cover dynamics in peri-urban areas and adjoining environments. The migration was intensified by push drivers which include urban growth, market of land and reliance on forest product among community members as source of their livelihoods. The increased rainfall variability accompanied with high temperature has contributed to frequent droughts which compromises rainfed agriculture. Thus, the successful conservation of the forest will require strengthened enforcement of protection measures supported with introduction of alternative livelihood strategies for majority of poor community members.

关键词： Climate Change and Variability Driver forest reserve Land Cover Dynamics Peri-Urban

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