Estimated Carbon Absorption and Economic Benefits in Various Scenarios of Community Forest (HKm) Land Management Through The Scheme of Plan Vivo in The Upstream Watersheds (DAS) of Renggung River, Central Lombok Regency, Indonesia

Abstract

This study aims to (1) estimate carbon absorption and the economic benefits of HKM land management through Plan Vivo scheme and (2) determine the composition of plants to be prioritised. This research was conducted in the upstream watershed of Renggung River in Central Lombok. The calculation of the estimated carbon absorption was obtained using allometric equations, while the estimated economic benefits were calculated from the production of commodities that are grown and the potential of carbon trading. To determine the prioritised scenarios, Analitycal Hierarchy Process (AHP) was conducted. The time range of analysis is conducted within a period of 15 years with three scenarios of composition of plants : (1) scenario-1: 70% MPTs and 30% timber trees (2) scenario-2: 30% MPTs and 70% timber trees; and (3) scenario-3: 50% MPTs and 50% timber trees. The results of the study are as follows: (1) the increased absorption of carbon dioxide (CO2) for scenario-1 amounted to 87.54 tonnes/ha/yr, scenario-2 amounted to 138.93 tons/ha/yr, and scenario-3 for 113.88 ton/ha/yr; (2) The economic benefits for the scenario 1 is of IDR 37,882,304,- /hectare/year, the scenario-2 of IDR 22,875,951,- per hectare / year, and scenario-3 of IDR 31,685,853,- per hectare/year. Furthermore, based on the consideration of carbon absorption, economic benefits, and sociocultural aspects, the priorities to be developed is the scenario-2.

Vegetation and Soil Carbon under Various Forest Management Types: Case of Karang Sidemen Community Forest in Lombok, Eastern Indonesia

“…The vegetation density of communitymanaged forest areas, especially on the island of Lombok, has become an important concern because it is one of the references in payment for carbon environmental services. Sukardi et al [46] reported that Aikbual community forest farmers in Lombok Island participated in the development of the Plan Vivo scheme of environmental services by adding 290 multipurpose and forestry crops per ha so that the tree population in the managed land was 400 trees per ha. The basal area of the stand at the study site is presented in Table 5.…”

Self-Financing Strategy for Water Conservation Through Payment of Environmental Services for Domestic Water Users in the Upper Areas of Renggung Watershed

“…Water has an important role as a basic need that must be met for human survival [1,2]. The need for water to meet population activities is increasing, apart from the increase in population, also because activities that require water increase, such as industrial areas, trade, education, tourism, and so on [3,4].…”

“…In this sense, this research must be carried out with the objectives of: (1) identify the community's willingness to pay (WTP) for domestic water environmental services and their WTP value; (2) analyze the factors that influence the WTP value for domestic water; (3) analyze the potential for selffinancing for water conservation; and (4) formulate mechanisms and strategies for managing conservation selfhelp funds.…”

Characteristics Study of Land for Agriculture in Sembalun

“…Land management is currently focused on the concept of sustainable land management. Sustainable land management paradigm implies that in meeting the needs of our current, current management trends should not diminish the ability of natural resources to meet the needs of future generations (Sukardi et al, 2017).…”