Tourism is a natural resources utilization with low environmental impact. Tourism development and sustainability must be reciprocal. This research is aim to (1) inventory the tourism potential at Betung, (2) Analyze the Land Suitability and (3) design management strategy that can support the existence of Tourism at Dukuh Betung. This research is a survey research with in-depth interview techniques, field observations, and documentation. Data analysis techniques used are (1) Qualitative Descriptive, (2) Scoring, (3) SWOT. The results show that tourism potential at Betung includes the potential of natural resources, cultural, education, and human resources. Meanwhile, on observations of the Land Suitability shows that this area is feasible to be developed as a natural tourism area with the high scoring result (80). On SWOT Analysis, major internal factor for strength is natural and beautiful panorama and major internal factor for weaknesses is lack of human resources with appropriate competency. The major external factor for opportunity is this area can be treated as natural tourism, conservation, and education area. Meanwhile, major external factor for threats is the existence of other tourism attractions. Concluded based on the result study is :(1) Dukuh Betung area has various kinds of potential; (2) Land Suitability analysis shows that Dukuh Betung suitable to be developed as a natural tourism; (3 )On SWOT analysis, management strategy design that suitable to Dukuh Betung is WO (Weakness-Opportunity), strategy that fixed the weakness with improve the quality of human resources, improve and develop supporting facilities  increasing community participation and increase in financial aspect.

The study aims to identify the C-organic content of inland peat in various land cover and soil layer depths. This study uses plot sampling methods with the creation of minipits on 4 (four) types of land cover. In each type of land cover, there are 3 (three) plot sampling, so the total plot sampling is 12 fields. Soil sampling is carried out at depths of 0-10 cm, 10-20 cm, 20-30 cm, 30-40 cm, and 40-50 cm. The research site is in the Special Purpose Forest Area (KHDTK) of Nusa Natural Laboratory and Peat Forest (LAHG) Sebangau. The study was conducted from June to August 2021. Soil samples are analyzed at the UPT Laboratory. LLG-Cimtrop and UPT. Integrated Laboratory, Palangka Raya University. The parameters observed are C-organic, Ash content, Moisture content, Water content, and Fiber content. The data of the study results are analyzed statistically with regression and correlation analysis. The results showed that the land cover that has the highest C-organic content is land revegetation (RePeat) at a depth of 40-50 cm with a C-organic value of 57.81% and the lowest C-organic content in natural forest cover at a depth of 30-40 cm with a C-organic value of 52.2%. The highest ash content is in natural forest cover at a depth of 30-40 cm with an ash content value of 3.18% and the lowest ash content in land cover revegetation (RePeat) at a depth of 40-50 cm with an ash level value of 0.08%. The highest water content is in the revegetation of land cover (RePeat) at a depth of 40-50 cm with a water content value of 318.97% and the lowest water content in the burned land cover at a depth of 0-10 cm with a water content value of 92.56%.

Water is an essential factor in forming, utilization, management, and sustainability of peat soil. This study was to obtain characteristics of water retention and porosity of peat soil. Peat samples were taken from the Natural Laboratory of Peat Forest, Central Kalimantan at shallow, medium, and deep peat at 0-50cm (surface) and 50-100 cm (subsurface), while laboratory analyses carried out at Soil Laboratory, Universitas Gajahmada. The result shows that volumetric moisture content at the surface lower than subsurface, except for deep peat. The total pore for the surface was 84.67-86.98%, while subsurface layers were 83.53-86.93%. For surface layer, saturated degree (S) medium peat higher than shallow and deep peat, while for shallow subsurface peat higher than medium and deep peat. S value all pF levels of surface for medium and deep peat higher than the subsurface. Bulk density for surface was 0.094g.cm-3 (rb(wet)) and 0.22g.cm-3(rb (dry)) for shallow peat while medium peat are 0.084–0.087g.cm-3(rb(wet)) and 0.18–0.20g.cm-3(rb(dry)), deep peat 0.064–0.090g.cm-3(rb(wet)) and 0.11–0.16g.cm-3(rb(dry)). For subsurface, bulk density of medium peat are 0.094–0.107g.cm-3 (rb(wet)) and 0.16–0.20g.cm-3 (rb(dry)), deep peat are 0.067–0.090g.cm-3 (rb(wet)) and 0.10–0.17g.cm-3 (rb(wet)). The particle density of surface and subsurface for shallow peat higher than medium and deep peat, with values 0.67-0.77g.cm3, 0.61-0.66g.cm3, and 0.53-0.63g.cm3 for shallow, medium, and deep peat, respectively. Total pores for the surface layer decrease with increasing dry bulk density (R = 0.624) and particle density (R = 0.375). This fact seems to confirm a directly proportional relationship between parameters bulk and particle density with total pores.

Air berperan penting dalam proses pembentukan, pengolahan, manajemen pemanfaatan, dan pelestarian tanah gambut. Tujuan penelitian ini adalah untuk mendapatkan karakteristik retensi air dan derajat kejenuhan tanah gambut. Penelitian dilaksanakan di Laboratorium Alam Hutan Gambut, Kalimantan Tengah, tahun 2007 sampai dengan tahun 2014. Contoh gambut diambil dari tiga kategori ketebalan gambut, yaitu Gambut Dangkal (SP), Gambut Sedang (MP) dan Gambut Dalam (DP), dari lapisan permukaan (0-50 cm atau L-1) dan lapisan sub permukaan (50-100 cm atau L-2). Kadar lengas volumetrik (θw) L-1 selalu lebih rendah dari L-2, kecuali untuk DP, dimana kadar lengas pada aras pF1; pF2 dan pF 2,54 pada L-1 lebih tinggi dari L-2. Kadar lengas DP, L-1 masing-masing senilai 29,36%, 17,59% dan 13,37% untuk aras pF 1, pF 2, dan pF 2,54, lebih rendah dari L-2, senilai 36,77%, 18,90 % dan 14,51 % pada nilai aras pF yang sama. Nilai rata-rata total pori pada L-1 kategori SP, MP dan DP berturut-turut adalah 84,67%, 86,40% dan 86,98%. Pada L-2, nilai rata-rata total pori kategori SP, MP dan DP berturut-turut adalah 83,53%, 84,56%, dan 86,93%. Nilai derajat kejenuhan (S) semua aras pF pada L-1 kategori MP cenderung lebih tinggi dari SP dan DP, kecuali pF 4,20; dimana nilai S untuk SP (22,35%) lebih tinggi dari MP (10,63%,) dan DP (7,53%). Selanjutnya, untuk L-2, nilai S untuk SP cenderung lebih tinggi dari MP dan DP, kecuali pF 0, dimana MP mempunyai nilai S yang lebih tinggi dari SP dan DP.Kata Kunci : Kadar Lengas, Total Pori, Derajat Kejenuhan.