Jurnal Tanah dan Sumberdaya Lahan

ANALISIS HUBUNGAN TUTUPAN LAHAN DAN INDIKATOR KESEHATAN HIDROLOGI DAS REJOSO, JAWA TIMUR

Sisilia Wariunsora — 2024-01-01

With increasing concerns regarding water resource management and environmental sustainability, understanding land use change and the hydrological health of watersheds is critical for informed decision-making. This study aimed to explore the effect of land use changes on hydrological health resilience in the Rejoso watershed, East Java, using remote sensing techniques and geographic information system tools to characterize the various land cover types. Landsat ETM 7+ satellite imagery was used to describe land cover classes. Hydrological health indicators such as water transmission, water availability during the dry season, and peak rainfall buffer events were systematically analyzed in relation to land cover change conditions. Regression statistical methods were used to measure the impact of land cover changes on hydrological parameters. The study results showed that the area of forest land in the Rejoso watershed tended to increase from 2011 to 2021; on the other hand, the area of agroforestry land tended to decrease along with the increase in upland land. In general, the hydrological health of the Rejoso watershed is decreasing from year to year. The increase in forest area, agroforestry, settlements, and ponds provides a positive response to the hydrological health of the watershed. On the other hand, the increase in moorland and rice fields has a negative impact on the hydrological health of the watershed.

EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN PADI SAWAH DI KAMPUNG SUKA MAJU DISTRIK MALIND KABUPATEN MERAUKE

Yosefina Mangera — 2024-01-01

The level of land suitability for lowland rice can be determined by conducting a land suitability evaluation. Information related to land suitability classes can be used as a reference in taking appropriate action in managing rice fields so that production targets can be achieved. The aim of this research is to determine the actual land suitability class for lowland rice crops in Suka Maju Village, Malind District, Merauke Regency. This research used a survey method and soil sampling was carried out on two types of land, namely paddy fields and grasslands. Data collection was carried out by direct observation, laboratory analysis and data analysis. The data analysis technique to determine the subclass of land suitability is to match the growing requirements for lowland rice plants with the quality and characteristics of the land according to the Technical Guidelines for Land Evaluation for Agricultural Commodities, 2011 Revised Edition. The results of the research show that the land suitability class for lowland rice plants is on both types of land. (rice fields and grasslands) are classified as marginal suitability class (S3) with the limiting factors being rooting media (rc), nutrient retention (nr) and available nutrients (na). Basically, the limiting factors in this research can be improved by liming, fertilizing and adding organic materials.

EVALUASI KESESUAIAN LAHAN PERTANIAN UNTUK TANAMAN JAGUNG DI KECAMATAN KUALUH HILIR, LABUHAN BATU UTARA, SUMATERA UTARA

Febbry Vebilola Manalu — 2024-01-01

Land suitability is one method used to assess the suitability of a commodity to be cultivated sustainably on land. This research aimed to highlight the issue of agricultural land for maize in Kulah Hilir District, Labuhan Batu Regency, North Sumatra. The method used in this research is the matching evaluation method (weight factor match). The data used in this research is secondary data sourced from research data in the form of rice agricultural land suitability data with the title Evaluation of Land Suitability for Rice (Oryza sativa L.) in Kualuh Hilir District, Labuhanbatu Regency. North, North Sumatra. This research showed that the land suitability class of corn in Kualuh Hilir District, North Labuhanbatu Regency, North Sumatra, using the weight factor matching method, is in class S2, "quite suitable" for planting corn plants. There are two limiting factors in land adjustment from rice plant data for corn plants; namely, the limiting factor for nutrient retention (nr) is only (base saturation (%)) and pH H₂O with a land suitability level of "marginal suitability" S3 but improvements can be made to increase the class. The suitability of the land with the addition of organic materials and lime ameliorant materials with low to medium input can increase the potential suitability class of the land to S2.

ANALISIS KELAS KEMAMPUAN LAHAN DI SUB DAS BAH BUANGAN, KECAMATAN DOLOK SILAU, KABUPATEN SIMALUNGUN

Alvin Pratama — 2024-01-01

Penggunaan lahan digunakan berdasarkan pada pemanfaatan lahan masa kini karena aktivitas manusia yang bersifat dinamis. Pengelompokan dan penggolongan atau klasifikasi agar lahan dapat diperlakukan sebagai unit-unit yang seragam untuk suatu tujuan khusus. Klasifikasi kemampuan lahan berupa sebuah upaya untuk mengevaluasi lahan untuk penggunaan tertentu, termasuk di Sub DAS Bah Buangan yang relatif curam sehingga banyak ditemukan lahan-lahan yang longsor. Penelitian ini bertujuan untuk mengidentifikasi dan membandingkan temuan kelas kemampuan lahan berdasarkan referensi dengan perhitungan pembanding. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif melalui studi pustaka dan metode arithmatic matching untuk mendapatkan faktor yang dominan sebagai penentu kelas kemampuan lahan.. Berdasarkan hasil penelitian diperoleh kesimpulan bahwa terdapat 11 satuan lahan di Sub DAS Bah Buangan, Kecamatan Dolok Silau yang memiliki kelas berbeda-beda. Mereka di antaranya satuan lahan AnIP, AnIIP, AnIIIP, AnIVP, LaIIP, LaIVP, AnIIBu, LaVBU, LaIIIH, LaIVH, dan LaVH. Satuan lahan AnIP sangat cocok terhadap sektor pertanian, dan satuan lahan LaVH tidak cocok karena tidak subur.

ANALISIS BEBERAPA SIFAT KIMIA TANAH PADA DUA MACAM PENGGUNAAN LAHAN DI SUNGAI KAKAP, KABUPATEN KUBU RAYA, KALIMANTAN BARAT

Ulfia Fadilla — 2024-01-01

Paddy fields and mixed farming apply intensive agricultural cultivation, and sustainable land use causes changes in land quality, one of which affects soil chemical properties. This study aimed to compare soil chemical properties based on differences in the use of paddy fields and mixed farming in Sungai Kakap District, Kubu Raya Regency, West Kalimantan. Research in the field in Pal IX Village, Sungai Kakap Sub-district, Kubu Raya Regency, for sampling soil samples at 0-20 cm depth. Soil analysis was conducted at the Chemistry and Soil Fertility Laboratory, Faculty of Agriculture, Tanjungpura University. The results showed that the two fields, paddy fields, and mixed farming, had almost the same chemical properties in paddy fields pH, organic C, available P, cation exchange capacity (CEC), exchangeable Ca and exchangeable Mg.

EVALUASI KESESUAIAN LAHAN SEBAGAI UPAYA PENINGKATAN PRODUKSI TANAMAN PANGAN DI KECAMATAN KASIHAN KABUPATEN BANTUL

Yoram Gehing Wijaya — 2024-01-01

Evaluation of land suitability was carried out in Kasihan District to determine the land suitability class for food plants. This research was conducted to determine the limiting factors that resulted in a decrease in soil fertility in the local area. Land suitability classes were obtained in S3, and N classes with limiting factors for water availability (wa), erosion hazard (eh), root media (rc), and nutrient retention (nr). The limiting factors that are found in the study area are the erosion hazard, soil pH, and organic C levels. Improvement efforts as an agricultural area development that can be done are making bunds to reduce slopes, giving biochar to increase organic C levels, and reducing soil pH. The limiting factors of soil texture and depth cannot be repaired. Soil texture is a property of the soil that is influenced by nature and is very difficult to change, and the depth of the soil cannot be changed unless other agricultural commodities are selected.

KARAKTERISASI INDIKATOR KESESUAIAN LAHAN KOMODITI NANAS LOKAL (Ananas comosus) KABUPATEN MAJENE

Muhammad Fahyu Sanjaya — 2024-01-01

Indonesia boasts a high biodiversity, intricately linked to the various ecosystems within its territories. In Majene Regency, West Sulawesi Province, for instance, there is a unique commodity in the form of pineapple, locally known as 'pondang'. One of the efforts to preserve this unique pineapple commodity is to understand the characteristics of the cultivation land that has sustained it over time. This research aimed to characterize the land in the cultivation areas of Majene's local pineapple as fundamental information for farmers to comprehend the plant growth ecosystem and manage the land optimally. The research utilized purposive random sampling based on the cultivation locations of Majene's local pineapple. Observations revealed that the cultivation land conditions for Majene's local pineapple had an average temperature ranging from 25.65 to 29.75 ºC, rainfall between 1,488.05 and 2,820.50 mm, with humidity ranging from 63.38 to 89.00%. Additionally, soil fertility conditions in the research locations indicated high nutrient retention, as shown by slightly acidic to neutral soil pH values and high Cation Exchange Capacity (CEC), although some available nutrients indicated very low to low soil fertility levels, such as potassium. Soil management significantly influenced nutrient availability, soil salinity, and alkalinity in the research locations.

STATUS HARA N, P DAN K PADA TANAH SAWAH IRIGASI DI KAPANEWON PRAMBANAN, KABUPATEN SLEMAN, DAERAH ISTIMEWA YOGYAKARTA

Widya Wibawati — 2024-01-01

The difference in the productivity level of paddy is caused by nutrient availability and land management. This study aims to determine the chemical properties of soil, especially elements of N, P, and K, in soils that have different levels of rice productivity. The methods used in this study are survey methods and laboratory analysis. Purposive sampling was conducted based on the productivity of medium and high-status rice fields. Based on the level of productivity of rice fields, there are 18 sample points, which are composite into 7 samples and analyzed in the laboratory. The results showed that several chemical properties in areas with high productivity levels had an average availability of total N nutrient status of 0.17% (low), potential P 56.5 mg 100 g^-1 (high), potential K 17 mg 100 g^-1 (low), organic C by 2.75% (medium), cation exchange capacity (CEC) 11.52 cmol(+)kg^-1 (low) while in areas with medium productivity had an average total N nutrient of 0.23% (medium), potential P 38.33 mg 100 g^-1 (medium), potential K 72 mg 100 g^-1 (very high), organic C 3.23% (high), CEC 33.06 cmol(+)kg^-1 (high) and has a soil pH of 6.1 (slightly acid) respectively. High-productivity areas have low to medium soil fertility, while medium-productivity areas have medium to high soil fertility. Rice field management factors are suspected to cause differences in rice productivity levels.

STATUS KESUBURAN TANAH PADA LAHAN SAWAH DILINDUNGI YANG BERALIH FUNGSI DI KAPANEWON SEYEGAN, KABUPATEN SLEMAN, DAERAH ISTIMEWA YOGYAKARTA

Alvin Dwi Hermansyah — 2024-01-01

The conversion of rice fields in Seyegan is suspected to occur due to low soil fertility. This study was conducted to analyze the extent and distribution of conversion of rice fields associated with soil fertility status. This study used a survey method, purposive determination of sample points on rice fields representing the converted rice fields, and soil samples were taken compositely. Data analysis used spatial analysis, graphs, and laboratory tests. The parameters tested were cation exchange capacity (CEC), Base Saturation, potential P₂O₅, potential K₂O, and organic C. Determination of soil fertility status was based on The Technical Guidelines For Soil Fertility Evaluation of Soil Research Center. The results showed that the area of rice fields in Seyegan District in 2015-2022 decreased by 55.26 ha (3.76%), with an average annual decrease of 7.89 ha. The soil fertility status in rice fields converted into settlements was very low to medium, rice fields into dryland and poultry farming were medium, and rice fields into shrubs and factories were low. The limiting factors of soil fertility were CEC and organic C.

ANALISIS ERODIBILITAS TANAH DAN HUBUNGANNYA DENGAN PRODUKTIVITAS TANAMAN KOPI DI KECAMATAN WAJAK, KABUPATEN MALANG

Dinna Hadi Sholikah — 2024-01-01

Coffee plants (Coffea sp.) are among the most popular plantation crops for farmers in Wajak District. However, the soil condition in Wajak District is dominated by sandy soil, which can trigger soil sensitivity to high erosion potential. A mitigation effort for the declining of coffee production in the Wajak District can be made through the estimation of the soil erodibility index. This study aimed to suspect the soil erodibility index and obtain the relationship of soil erodibility index to coffee production on smallholder coffee plantations in Wajak District, Malang Regency. The methods of determining land boundaries with land map units (SPL) were land use, soil type, and slope. The parameters used were soil texture (M), organic matter (a), structure (b), and permeability (c) to determine erodibility, as well as coffee beans for coffee production analysis. Statistical analysis of data was in the form of correlation tests and data regression tests. The results of the data analysis showed that the highest wet weight of coffee fruit was found in SPL 8 with plantation land use, Typic Hapludands soil type and land slope of 8-15%. The wet weight value of coffee fruit at SPL 8 is 2.18 t ha^-1 with an erodibility value of 0.37. While the lowest wet weight of coffee beans was found in SPL 2 with moor land use, Andic Eutrudepts soil type and land slope of 8-15%. The average wet weight value of coffee beans at SPL 2 was 0.12 t ha^-1 with an erodibility value of 0.26.