Biecological Carrying Capacity of Forest and Land in Manokwari Regency, West Papua Province

IF 0.5 3区数学 Q3 LOGIC

Journal of Symbolic Logic Pub Date : 2020-05-11 DOI:10.23960/jsl28197-206

J. Marwa, A. Sineri, Francine Hematang

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引用次数: 1

Abstract

Manokwari Regency has high environmental risks due to the high rate of population growth and increased migration. This condition could affect the biocapacity of forest and land resources as well as the ecological footprint that could fulfill the needs of the community in the Manokwari Regency. This study aimed to assess the bioecological carrying capacity of forest and land, changes in forest cover, and projecting the bioecological carrying capacity for the next 50 years in the Manokwari Regency. A quantitative descriptive approach based on secondary time series data analysis and land cover dynamics analysis was used. The ecological footprint approach was carried out by calculating the ecological footprint, biocapacity, and bioecological carrying capacity. The results showed that the bioecological carrying capacity in 2017 in Manokwari District decreased compared to 2012. Forest degradation tended to decrease at a rate of 372 ha/year. However, deforestation increased at a rate of 1,298 ha/year. The results indicated that the policy of converting forests to permanent non-forest lands in the last five years was very massive. The projected bioecological carrying capacity in the next 50 years show ed that forest and land in Manokwari District tend to be overshoot. Keywords: bioecological carrying capacity, change in land use, forests , land , Manokwari

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西巴布亚省马诺瓦里县森林和土地的生物生态承载力

由于人口增长率高和移民增加，马诺瓦里摄政有很高的环境风险。这种情况可能会影响森林和土地资源的生物承载力以及能够满足马诺瓦里县社区需求的生态足迹。本研究旨在评估马诺瓦里县森林和土地的生物生态承载力、森林覆盖变化，并预测未来50年的生物生态承载力。采用基于二次时间序列数据分析和土地覆盖动态分析的定量描述方法。采用生态足迹法计算生态足迹、生物承载力和生物生态承载力。结果表明:2017年马诺瓦里地区生物生态承载力较2012年有所下降;森林退化趋势以372公顷/年的速度减少。然而，森林砍伐以每年1 298公顷的速度增加。结果表明，近5年来，中国实施了大规模的退耕还林政策。未来50年的生物生态承载力预测表明，马诺瓦里地区的森林和土地有超载的趋势。关键词:生物生态承载力，土地利用变化，森林，土地，马诺瓦里

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来源期刊

Journal of Symbolic Logic 数学-数学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Symbolic Logic publishes research in mathematical logic and its applications of the highest quality. Papers are expected to exhibit innovation and not merely be minor variations on established work. They should also be of interest to a broad audience. JSL has been, since its establishment in 1936, the leading journal in the world devoted to mathematical logic. Its prestige derives from its longevity and from the standard of submissions -- which, combined with the standards of reviewing, all contribute to the fact that it receives more citations than any other journal in logic.