Evaluation on biophysical carrying capacity to support land rehabilitation planning in the upstream watershed

A comprehensive Soil and Water Conservation (SWC) plan is needed, supported by information on the condition of the Biophysical Carrying Capacity (BCC) of the watershed so that land rehabilitation activities will be right on target. The research aims to evaluate the BCC to support the SWC planning for the upstream watershed. The research area was in the Naruan Micro Watershed (NMW), the upstream of Keduang Sub Watershed, the Bengawan Solo Watershed. The analysis of the BCC used evaluation criteria based on the Ministry of Forestry Regulation (PerMenhut) No. P.61/Menhut-II/2014 concerning monitoring and evaluation of watershed management. The evaluation showed that the BCC in the research area was in the “Bad” category with a value of 128.0. It means that the watershed needs to be restored, particularly in terms of biophysical features. Several parameters indicated a poor category, i.g. the land aspect such as Percentage of Degraded Land (PDL) and Erosion Index (EI) parameters, while in the water system aspect such as the Flow Regime Coefficient (FRC), Annual Flow Coefficient (AFC), and Sediment Load (SL) parameters. These five parameters must become a concern and an important starting point for land rehabilitation planning in the form of SWC measures.

EFFECT OF HUYULA LOCAL WISDOM ON PARTICIPATORY CRITICAL LAND REHABILITATION IN THE AGROFORESTRY MODEL

Land criticality takes place because of a complex set of technical, biophysical, social, and cultural factors. Socially, participation in rehabilitating degraded land is a measure of the success of a rehabilitation project. Therefore, this study aims to determine the form and extent of the contribution of local wisdom in participatory critical land rehabilitation efforts using agroforestry patterns. An exploratory approach designed in qualitative research was used, and data collection was conducted through brainstorming techniques and Focus Group Discussion (FGD). Furthermore, a descriptive qualitative analysis was used, and data acquisition includes reduction, presentation, conclusion, and verification. The results showed that community participation is involved in the stages of planning, implementation, and evaluation of activities, all of which can be enhanced by an empowerment approach aimed at rural communities. Meanwhile, sustainable agroforestry participation can be achieved by integrating local huyula wisdom into agroforestry development. The Huyula configuration is practiced in group deliberations during planning activities relating to locations, plant types, planting, maintaining plants, and recommendations. The aim is to achieve environmental improvement and to rehabilitate critical land through agroforestry. Furthermore, agroforestry development should be conducted on a massive scale in the future via the integration of various sectors to optimize the rehabilitation of critical land and create a sustainable environment.

Industrial By-Products for the Rehabilitation of Coal Mining-Affected Areas -- a Novel Approach

The blends of coal combustion by-products (CCBs) with organic wastes (sewage sludge and spent mushroom compost) were investigated for elaboration of soil substitutes for land rehabilitation of coal mine affected areas. The study incudes four types four types of habitat with different water retention and fertility i.e.: dry and moderate fertility (A1-A3), mesic and low fertility (B1-B3), mesic and moderate fertility (C1-C3), humid and low fertility (D1-D3). Obtained results revealed that the amounts of macronutrients were sufficient for supporting plant growth i.e.: N (0.44-0.60 %), P (0.13-021 %), K (1.63-1.98 %), Mg (1.01-1.38 %), Ca (5.32-8.23 %), S (2.66-4.12 %), whereas the concentration of organic matter varied within the range 20.3-27.9 %. Phytotest using white mustard (Sinapis alba) seeds under laboratory conditions showed that the best results of sprouting i.e: 56 and 66 % were obtained for D2 and D3, respectively. The values of pH (8.16-8.78) and electrical conductivity (5.28-6.73 mS·cm-1) of tested soil substitutes were found to be the decisive factors limiting the germination process. The coefficients between the parameters of soil substitutes and the Sinapis alba sproutings have revealed negative correlation with electrical conductivity (r = -0.46). Additionally, tests with meadow vegetation gave promising opportunity for the use of soil substitutes in the process of land rehabilitation. The cover of the mesic and dry meadow vegetation reached 90%. The Principal Component Analysis (PCA) has outlined that pH, content of P and organic matter, are the most important factors that influence cover of meadow vegetation.

PARTISIPASI PETANI TERHADAP PROGRAM REHABILITASI LAHAN REHAB KAWASAN MERU BETIRI DI DESA WONOASRI KECAMATAN TEMPUREJO KABUPATEN JEMBER

of the Republic of Indonesia and is located in Jember Regency. Meru Betiri National Park (TNMB) is a conservation area that functions as a life support system which also acts as a means of supporting research, knowledge and education as well as supporting agricultural cultivation, recreation, and tourism and is directly adjacent to the village of Wonoasri, which is the fostered village of the Park. Meru Betiri National. Wonoasri Village was appointed as TNMB's target village because of its location which is one of the supporting villages for the conservation area. This study to study (1) the reasons why farmers participated in the land rehabilitstion program for rehabilitation land in the meru betiri area in Wonoasri Village, Tempurejo District, Jember Regency, (2) the participation process that occurred in the land rehabilitation program for the Meru Betiri area in Wonoasri Village, Tempurejo District, Jember Regency. The determination of the research area was carried out deliberately (purposive method). The research used qualitative method. research area used was Wonoasri Village, Tempurejo District, Jember Regency. The method of determining information in research that uses done purposively is selected with certain considerations and goals. The results showed that: (1) rehab farmers participate in the rehabilitation program for rehab land to conserve forests again, (2) Rehab farmers are directly involved in the planning process to evaluate economic benefits. Keywords: Taman Nasional Meru Betiri, Wonoasri, Land Rehabilitation

Potensi Mikoriza Vesikular Arbuskular (MVA) sebagai Biofertilizer pada Tanaman Jagung (Zea mays)

Mining activities can cause environmental damage, and needs land rehabilitation efforts. One approach to land rehabilitation after mine is with repairing the ecosystem condition by improving the quality of the soil, with increase fertility and enriching soil nutrient content by providing a biofertilizer from microbe, such as mycorrhizal fungi. This study aims to determine the potential use of vesicular arbuscular mycorrhizal fungus (MVA) as a biofertilizer by examining the effect of MVA on the growth of corn plant (Zea Mays). Applicated indigenus MVA was able to increase the absorption of phosphorus (P) nutrients in the soil by corn plant so it had an effect on increasing the height and diameter of the corn plant stalks. MVA has the potential as a basic material for making biofertilizer, so it can be used to improve soil quality and environment in ex-limestone mining areas.

Kondisi Biofisik Serta Gangguan Terhadap Hutan Pada Areal Buffer Zone Bantaran Sungai Apo Distrik Jayapura Utara

APO river has a length of 3 kilometers with a width of 7 meters and flows from headwaters in the village Angkasa Pura to empty into the sea which is administered into the village administration area Bhayangkara. The purpose of this study to (1) identify the biophysical conditions in the area of the buffer zone of the river sepantaran Apo. (2) Identifying the form of land use in the bufferzone area of the Apo River from downstream to upstream. (3) Provide management recommendations in the form of land suitability directions to carry out Forest and Land Rehabilitation activities in the bufferzone area of the Apo river. Descriptive method with map interpretation and consists of several stages that include the preparation stage, the stage of processing and preliminary processing of data, field checking stage, the stage of data analysis, and recommendations on the implementation of Forest and Land Rehabilitation activities in the area of the river BufferZone Apo. Biophysical conditions of the area BufferZone river Apo has the characteristics of land cover types that include dry forest primary dry forest secondary, dryland farming mixed with shrubs, bushes, settlements, soil types litosol, with altitude ranging from 0 m asl - 690m above sea level . BufferZone slope in the area of very varied ranging from flat to very steep.In accordance with the decline in the quality of primary dryland forest to secondary dryland forest covering 22.04 hectares in 2009-2018 and activities that resulted in the removal of 44.80 hectares of secondary forest in 2000-2009, the large changes in the nature of both deforestation and degradation of from 2000 to 2018 thus covering an area of 66.84 hectares or 18.94% of the total research area, namely the Apo river bufferzone. Most of the areas that are categorized as quite suitable are forest areas that are experiencing deforestation and degradation and the recommended land is suitable enough to carry out RHL activities in the bufferzone area of the Apo River, only covering an area of 91.05 hectares or 25.80% of the bufferzone area. Apo river.