Forest Ecosystem has a significant role in assuring food security and sovereignty as well as national defense and security. Sustainable forest management is an effective framework to reduce and to add fuel to the impact of Green Houses Gas (GHG) emission changes. Petungkriyono is one of the last tropical forests in Java and provides biodiversity including rare flora and fauna. This area stores outstanding biodiversity that must be maintained, managed utilized to give meaning to humanity. The objective of this study is to analyze how a collaborative management perspective implemented in Petungkriyono as alternative policies that can be recommended to the government. This research shows that a collaborative management perspective significant factor to obtain sustainable development. Further application collaborative management approach recommended with the support of the government on the policy, rules, and human resource development. Through co-management, it was expected to improve the understanding of what people wanted, helped people to identify the issues, arranged the completion priority, increased commitment, social awareness independence. The collaboration between the private sector, local government, and community empowerment a particularly important factor in the success of sustainability management.
The Petungkriyono forest covers 53.88 km2 at Pekalongan Regency with 54.6% composition of mixed forest (29.43 km2). This study aimed to estimate above-ground biomass and carbon stocks from five villages; Tlogopakis, Tlogohendro, Kayupuring, Yosorejo and Kasimpar. Non-destructive samples of 30 plots were conducted by designing plots with 0.04 ha and stand inventory involving diameter at breast height, height and number of trees. The result showed that the total estimated biomass from five villages was 3,006.10 Mg ha-1 and carbon stocks were 1,442.93 Mg C ha-1. The averages of biomass and carbon stocks were 601.22 Mg Ha-1 and 288.59 Mg C ha-1. This indicates that 2,943 ha area of Petungkriyono mixed forest has carbon stocks capacity up to 1,769,390.46 Mg C. The highest above-ground biomass contribution 59% tree compared with 41% poles. The significantly higher above-ground biomass describes higher carbon stocks long term storage of CO2 to either mitigate or defer global warming. Climate change mitigation from carbon stocks can be obtained from CO2 equivalents if well managed. Petungkriyono mixed forest may have considerable potential for mitigating climate change by carbon sequestration.
Abstract. Damayanti I, Nurbambang A, Soeprobowati TR. 2021. Plant diversity of Petungkriyono Forest of Dieng Plateau, Central Java, Indonesia. Biodiversitas 22: 3497-3507. Petungkriyono is one of the remaining forests considered as the key biodiversity site in Central Java, Indonesia. The study aimed to analyze the composition, structure, and diversity of flora. The research used 60 circular plots with 0.04 hectares on five sites: Tlogopakis, Kasimpar, Yosorejo, Kayupuring, and Tlogohendro. The result indicated that the forest was dominated by 54.6% mixed forests, 29.1% pine forests, 10.7% puspa forests, and 5.6% unproductive areas. A total of 979 individuals belong to 108 species, among 88 genera and 43 families. The dominant family was Moraceae (32.6%) and has 10 species of Ficus spp as a key pioneer in a dry habitat. According to the Red List, the International Union for Conservation of Nature (IUCN), there were 4 species categories of endangered species (EN), 11 species as vulnerable category (VU), 46 species as least concern (LC), and 45 species not evaluated (NE). The horizontal and vertical structure of trees was dominated by 10-20 cm diameter classes and 82% at a medium level of the Shannon-Weiner index (H’). The conclusion is that plant diversity plays a significant role to maintain ecosystem stability, therefore conservation activities have to be developed properly. Ecosystem services are produced in the social-ecological system to increase human well-being and resilience.
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