scholarly journals LAND SUITABILITY EVALUATION FOR A NUMBER OF ANNUAL CROPS IN THE TIWORO RIVER WATERSHED, MUNA, SOUTHEAST SULAWESI

2020 ◽  
Vol 7 (8) ◽  
pp. 44-56
Keyword(s):  
Soil Depth ◽  
Soil Characteristics ◽  
Land Suitability ◽  
Limiting Factors ◽  
Data Series ◽  
Rock Outcrops ◽  
Total N ◽  
Organic C ◽  
River Watershed ◽  
Annual Crops

The Tiworo River Watershed, which covers a total area of 29,047.82 ha, has been a resource for agricultural development for the local people of Muna, Indonesia. The information regarding the land suitability for annual crops in this watershed was, however, still very limited. A survey-based study was, therefore, conducted to evaluate the land suitability in the watershed for six annual crops (i.e. paddy-rice, corn, peanut, soybean, cassava, and tomato). The evaluation was based on Djaenuddin’s criteria, that was by matching the respective crop growth requirements against soil characteristics (e.g. soil pH, organic-C content, total-N, P2O5, K2O, CEC, base saturation, soil texture and drainage, rock outcrops, effective soil depth, and slope) and climate (e.g. rainfall, and air temperature and humidity). Soil characteristics were collected from 87 land units. A ten-year climate data series was gathered from the Betoambari weather station. The results of the evaluation showed that the land in the watershed fell into class S3 (marginally suitable) and class N (not suitable) for all the six crops evaluated, and no land units belonged to S1 (highly suitable) and S2 (moderately suitable). The main limiting factors found were low water and nutrient availability, and high erosion hazard.

scholarly journals SPATIAL DISTRIBUTION OF BRACKISHWATER POND SOIL CHARACTERISTICS IN PEKALONGAN CITY CENTRAL JAVA PROVINCE

2011 ◽  
Vol 6 (1) ◽  
pp. 91
Author(s):  
Andi Indrajaya Asaad ◽  
Akhmad Mustafa
Keyword(s):  
Spatial Distribution ◽  
Soil Depth ◽  
Research Result ◽  
Soil Characteristics ◽  
Kriging Interpolation ◽  
Total N ◽  
Central Java ◽  
Kriging Interpolation Method ◽  
Brackishwater Pond ◽  
Central Java Province

Spatial distribution of brackishwater pond soil has a vital role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of brackishwater pond soil characteristics in Pekalongan City, Central Java Province. A total of 59 sampling points each with two different soil depth samplings were determined by simple random method. A total of 21 soil characteristics were measured in the field and analyzed further in the laboratory. Geostatistic with Kriging Interpolation method in the ArcGIS 9.3 software were used to depict the distribution of the data across the landscape. Furthermore, the spatial distribution was presented by using ALOS AVNIR-2 image. Research result indicates that in general, pond soil in Pekalongan City can be classified as soil with high variability or relatively heterogenic with the value of variation coefficient more than 36%. Soil characteristics which have similar pattern of spatial distribution are acid sulfate soil and soil nutrient content. High value of pH, organic matter, and total-N of soil, and on the other hand, low value of PO4 were generally found in the pond area of Krapyak Lor Village, while in Pekalongan City, it was found high clayish soil content but relatively homogenous. It is recommended that pond management must be based on soil characteristics which are different from one area to another. The soil characteristics itself can be drawn and assessed through spatial distribution.

scholarly journals Kajian Metode Evaluasi Kesesuaian Lahan untuk Kakao di Kabupaten Bantaeng

2019 ◽  
Vol 3 (2) ◽  
pp. 85
Author(s):  
Anwar Anwar ◽  
Muliati Galib ◽  
Wahyuni M
Keyword(s):  
Soil Fertility ◽  
Physical Properties ◽  
Soil Depth ◽  
Chemical Properties ◽  
Land Suitability ◽  
Land Evaluation ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Suitability Analysis ◽  
Effective Depth

Land evaluation is an assessment of the potential of land resources. The results of land evaluation will provide information on the best use of it which will lead to expected value of production. This study aimed to determine the level of suitability of the cocoa plantations in Bantaeng Regency using the FAO and Sys methods; make a map of the actual and potential land suitability. The results of the analysis showed that the actual cocoa land suitability of the FAO method was presented in distribution points according to marginal (S3rn) with limiting factor of rooting media and nutrients availability. While the actual land suitability analysis of the cocoa Sys method was not suitable (N1cSf) with climate limiting factors, the soil physical properties and soil fertility. Based on the limiting factors the physical properties of the two methods, there were similarities in effective depth (FAO) and soil depth (Sys), S3 parameters according to FAO and N1 according to Sys. The limiting factor for the soil chemical properties of the two methods was also the same, the availability of S3 (FAO) nutrients, while the (Sys) method was the soil fertility N1.

scholarly journals EVALUASI KESESUAIAN LAHAN SAWAH PASCA BANJIR BANDANG PADA TANAMAN PADI DI KABUPATEN ACEH TENGGARA

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Nani Kitti Sihaloho ◽  
Desi Sri Pasca Sari Sembiring
Keyword(s):  
Soil Analysis ◽  
Flash Floods ◽  
Land Suitability ◽  
Limiting Factors ◽  
Wetland Rice ◽  
Survey Method ◽  
Limiting Factor ◽  
Organic C ◽  
C And N ◽  
Potential Land

The aim of the study was to determine the level of suitability of wetland rice fields in the area before flash floods and post flash floods Lawe Tua Makmur Village, Lawe Alas Subdistrict, Southeast Aceh Regency and soil analysis at the Research and Development Laboratory of PT. Nusa Pusaka Kencana Analytical & Qc. Laboratory Bahilang Tebing Tinggi Medan in April 2016 and December 2017. It is carried out by a survey method that refers to the extent of the limiting factor of land characteristics. Data from observations in the field and data from laboratory analysis were matched to the criteria for the suitability of wetland rice classes. The results showed that the actual land suitability class for paddy rice in the area prior to banjir bandang was according to marginal / S3 (r, f) and the potential land suitability class was marginal / S3 (r). Actual land suitability class for wetland crops in the post-banjir bandang area according to marginal / S3 (r, f, n) and potential land suitability classes according to marginal / S3 (r). The limiting factor is the permanent texture of the soil so that it cannot be repaired and the limiting factors of CEC, organic C and N-total can still be improved by adding organic matter and fertilizing with nitrogen.

Free light fraction carbon and nitrogen, a physically uncomplexed soil organic matter distribution within subtropical grass and leucaena–grass pastures

Soil Research ◽  
2018 ◽  
Vol 56 (8) ◽  
pp. 820 ◽  
Author(s):  
K. A. Conrad ◽  
R. C. Dalal ◽  
D. E. Allen ◽  
R. Fujinuma ◽  
Neal W. Menzies
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Depth ◽  
Light Fraction ◽  
Grass Species ◽  
Pasture Grass ◽  
Total N ◽  
Δ13c And Δ15n ◽  
Organic C ◽  
C And N

Quantifying the size and turnover of physically uncomplexed soil organic matter (SOM) is crucial for the understanding of nutrient cycling and storage of soil organic carbon (SOC). However, the C and nitrogen (N) dynamics of SOM fractions in leucaena (Leucaena leucocephala)–grass pastures remains unclear. We assessed the potential of leucaena to sequester labile, free light fraction (fLF) C and N in soil by estimating the origin, quantity and vertical distribution of physically unprotected SOM. The soil from a chronosequence of seasonally grazed leucaena stands (0–40 years) was sampled to a depth of 0.2m and soil and fLF were analysed for organic C, N and δ13C and δ15N. On average, the fLF formed 20% of SOC and 14% of total N stocks in the upper 0.1m of soil from leucaena rows and showed a peak of fLF-C and fLF-N stocks in the 22-year-stand. The fLF δ13C and fLF δ15N values indicated that leucaena produced 37% of fLF-C and 28% of fLF-N in the upper 0.1m of soil from leucaena rows. Irrespective of pasture type or soil depth, the majority of fLF-C originated from the accompanying C4 pasture-grass species. This study suggests that fLF-C and fLF-N, the labile SOM, can form a significant portion of total SOM, especially in leucaena–grass pastures.

scholarly journals Evaluasi Kesesuaian Lahan Untuk Tipe Penggunaan Lahan Tanaman Pangan Lahan Kering Di Daerah Aliran Sungai Wae Batu Merah Kota Ambon Provinsi Maluku

2018 ◽  
Vol 14 (2) ◽  
pp. 81-88
Author(s):  
Daniel Torimtubun ◽  
Ellisa J Gaspersz ◽  
Rafael M Osok ◽  
Silwanus M Talakua
Keyword(s):  
Land Use ◽  
Soil Depth ◽  
Land Suitability ◽  
Limiting Factors ◽  
Synthetic Approach ◽  
Food Crops ◽  
Soil Erodibility ◽  
Slope Steepness ◽  
Covered Area ◽  
Land Use Types

The study was conducted on Wae Batu Merah watershed in Ambon, from July to October 2016, with the covered area of 685,14 ha. The objectives of the study were 1) to determine the limiting factors of land suitability classes of the upland food crops land-use types, and 2) to establish the land suitability classes of the upland food crops land-use types. The study method was surveyed with a synthetic approach and filed data collection was conducted using distanced-flexible observation. The study shows that there are two land sutability classes on the Wae Batu Merah, namely marginal (S3) land sutability class covered area of 116,93 ha or 17,06% and not-suitable (N) land suitability class covered area of 568,21 ha or 82,94%, while there are seven limiting factors, namely effective soil depth, soil texture, soil drainage, slope steepness, soil pH, soil erodibility. The application of terracing, mulching and contour planting are recommended to reduce the effect of slope steepness and soil erodibility. Keywords: Ambon city, land suitability class, wae batu merah watershed   ABSTRAK Penelitian ini dilaksanakan di DAS Wae Batu Merah Kota Ambon Provinsi Maluku pada bulan Juli sampai Oktober 2016 dengan luas lokasi penelitian 685,14 ha. Penelitian ini dilaksankan dengan tujuan : 1) Menetapkan faktor-faktor pembatas tingkat kesesuaian lahan untuk tipe penggunaan lahan tanaman pangan lahan kering di DAS Wae Batu Merah Kota Ambon, 2) Menetapkan kesesuaian lahan untuk tipe penggunaan lahan tanaman pangan lahan kering di DAS Wae Batu Merah Kota Ambon, Metode penelitian yang digunakan adalah metode survey dengan pola pendekatan sintetik dan jarak observasi fleksibel mengikuti perubahan bentuk fisiografi dan penggunaan lahan. Berdasarkan hasil pengamatan lapangan dengan evaluasi lahan, hasil yang di temukan adalah: 1) terdapat 2 kelas kesesuaian lahan pada Das Wae Batu Merah yaitu, kelas kesesuaian lahan S3 terdapat pada area seluas 116.93 Ha atau 17.06%, dan kelas kesesuaian N terdapat pada area seluas 568.21 Ha atau 82.94%, 2) Berdasarkan hasil evaluasi lahan maka terdapat 7 faktor pembatas yaitu kedalaman efektif, tekstur tanah, drainase, kemiringan lereng, pH tanah, erodibilitas, zona agroklimat. Kelas kesesuaian lahan potensial setelah dilakukan perbaikan dari S3 menjadi S2 dengan faktor pembatas pH tanah, lereng, dan erodibilitas. untuk faktor pembatas drainase dapat diatasi dengan pembuatan saluran drainase, untuk lereng dan erodibilitas dapat diatasi dengan pembuatan teras, dan penanaman sejajar kontor dan penanaman tanaman penutup tanah. Kata kunci: daerah aliran sungai wae batu merah, evaluasi lahan, kota Ambon

scholarly journals Land Suitability Index for Estimating Sugar Cane Productivity in the Humid Tropics of South Sulawesi Indonesia

2017 ◽  
Vol 21 (2) ◽  
pp. 115-122
Author(s):  
Risma Neswati ◽  
Christianto Lopulisa ◽  
Muhammad Nathan ◽  
Andi Ramlan
Keyword(s):  
Sugar Cane ◽  
Quantitative Methods ◽  
Soil Depth ◽  
Pearson Correlation ◽  
Land Suitability ◽  
Limiting Factors ◽  
Qualitative And Quantitative Methods ◽  
Sugarcane Crop ◽  
South Sulawesi ◽  
Suitability Index

This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a parametric approach with Storie’s index equation followed up with  correlation analysis using the Pearson correlation. Results revealed that the period for sugarcane crop growth in the humid tropic relatively dry regions of South Sulawesi Indonesia lasted for the months of November to July.  The land suitability for sugar cane in the research location was moderately suitable (S2c) and marginally suitable (S3c, S3s, S3s,f and S3c,w) with limiting factors such as relative humidity during crop maturation phase, the duration of sunlight, soil depth, soil texture, soil pH and soil drainage. Land suitability index at the research location ranged from 25.2 to 55.0; sugar cane yields ranged from 30.3 to 62.0 Mg ha-1 year-1. Pearson correlation coefficient (r) between LSI with cane and sugar productivity were 0.81 and 0.84 respectively, signifying the strength of the correlation between the two values. This also indicates that land suitability index can be estimating the potential crop yield in the humid tropicsthat relatively dry climate regions.

scholarly journals Evaluasi Kesesuaian Lahan Kecamatan Tompobulu Kabupaten Bantaeng untuk Pengembangan Tanaman Lada (Piper nigrum L)

2018 ◽  
Vol 7 (1) ◽  
pp. 7
Author(s):  
Muhammad Iqbal ◽  
Hazairin Zubair ◽  
Rismaneswati Rismaneswati
Keyword(s):  
Soil Depth ◽  
Research Area ◽  
Land Suitability ◽  
Land Evaluation ◽  
Limiting Factors ◽  
Piper Nigrum ◽  
Limiting Factor ◽  
Pepper Plant ◽  
Climate Type

Potential land resources can be expected through land evaluation activities. This study aims to evaluate the suitability of Tompobulu Subdistrict of Bantaeng Regency for the development of pepper plant (Piper nigrum L). This research was conducted in Tompobulu Sub-district of Bantaeng Regency which started from March to July 2016. This research used qualitative method and to determine land suitability using simple limiting factor approach. Determination of observation points based on the overlapping results of the baseline maps that resulted in 6 units of observation (soil profile). Production data and management of pepper crop obtained from farmers of respondents amounted to 10 people. The result of the study shows that the climate type of the research area according to Oldeman is classified as B2 with the actual land suitability class which is quite suitable (S2) with 3,657 Ha and the marginal fit (S3) with 3,023 Ha with rainfall limiting factor, soil depth, Slope, and surface rocks whereas the suitability class is quite suitable (S2) with an area of 6,160 Ha and corresponding marginally (S3) with an area of 520 Ha with rainfall and soil depth limiting factors. The potential of pepper plant development in Tompobulu Sub-district of Bantaeng Regency is quite large indicated by the percentage of land area that is quite suitable (S2) (82.40%).

scholarly journals Earthworm Abundance and Soil Characteristics Following Cocoa Waste and Manure Applications

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Erwin Prastowo ◽  
Lina Dwi Agustina ◽  
Cahyo Prayogo
Keyword(s):  
Soil Moisture ◽  
Soil Fertility ◽  
Soil Characteristics ◽  
Field Investigation ◽  
Organic Wastes ◽  
Fertility Level ◽  
Total N ◽  
Organic C ◽  
Top Soil ◽  
Earthworm Population

Soil fertility level improvement in an environmentally friendlier way has been a key to provide a sustainable cocoa production. Earthworms, as decomposeragents in soil, may provide a sustainable way of improving soil fertility level. The objective of this study was to quantify top soil earthworm population andsome important soil characteristics, e.g. soil moisture, organic C, total N, and pH to see if there was any response observed due to different level and type oforganic waste applications. Their surface populations, i.e. at 5–10 cm depth, within cocoa circle were investigated with respect to different type of organic wasteapplications, i.e. cocoa pod waste, cocoa leaf waste, and sheep manure. For cocoa derived organic matter, the level of application was arranged at 5, 10, and 20 ton/ha to obtain an optimal condition at which the highest population of earthworm is obtained. A field investigation was performed at a square of 900 cm2 sizedarea, and extending down to 5–10 cm depth. Additionally, the effect of organic waste to top soil characteristics were also determined mainly to some importantparameters such as soil moisture, organic carbon, total nitrogen, and soil pH (H2O). Our analysis suggest that field heterogeneity condition may limit the conclusion, mainly related to the question of to what extent the effect of organic wastes to the changes in terms of soil characteristics. The application of organic wastes was able to increase the population of earthworms. Their highest abundance was obtained following the application of cocoa pod at 20 ton/ha, which was about 5 times higher than the population in the control. 

scholarly journals Grazing effects on soil characteristics and vegetation of grassland in northern China

2015 ◽  
Vol 7 (3) ◽  
pp. 2283-2309 ◽  
Author(s):  
Z. Wang ◽  
D. A. Johnson ◽  
Y. Rong
Keyword(s):  
Grazing Intensity ◽  
Northern China ◽  
Soil Heterogeneity ◽  
Soil Characteristics ◽  
Total Biomass ◽  
Negative Consequences ◽  
Total N ◽  
Organic C ◽  
Heavy Grazing ◽  
Vegetation Characteristics

Abstract. Large areas of grassland in the agro-pastoral region of northern China were converted into cropland for grain production, and the remaining grasslands are being overgrazed and seriously degraded. The objective of this study was to evaluate how reductions in grazing intensity affect the soil and vegetation characteristics in grasslands of northern China. Soil heterogeneity and vegetation characteristics were evaluated for ungrazed (UG), moderate grazing (MG), and heavy grazing (HG) sites. Grazing increased diversity, but heavy grazing decreased aboveground biomass and increased the non-grass component. Vegetation biomass was greatest at the UG site (220 g m−2) followed by the MG (99 g m−2) and HG (27 g m−2) sites (P < 0.05). The non-grass proportion of total biomass increased with grazing intensity, which was 8, 16, and 48 % for UG, MG, and HG sites, respectively. Species richness at the MG and HG sites was significantly higher than at the UG site (P < 0.05) with 3.6, 5.5, and 5.7 for UG, MG, and HG sites, respectively. Over grazing homogenized soil characteristics at a 10 m scale. The ranges of spatial autocorrelation for soil organic C (SOC) and total N were both > 120 m at the HG site, which was considerably larger than that at the MG and UG sites with corresponding distances of 17.3 and 20.8 m for the MG site and 25.8 and 15.0 m for the UG site, respectively. Therefore, MG was recommended as the preferred management alternative for grasslands in northern China because of increased plant diversity without negative consequences related to decreased forage quality and forage quantity, and soil heterogeneity in northern China's grasslands.

scholarly journals Assessing soil fertility status and land suitability for patchouli plants (Pogostemon cablin Benth.) in Lamala District, Banggai Regency

2021 ◽  
Vol 2 (1) ◽  
pp. 50-58
Author(s):  
Yulinda Karundeng ◽  
Hertasning Yatim ◽  
Hidayat Arismunandar Katili ◽  
Lina Lathifah Nurazizah
Keyword(s):  
Soil Fertility ◽  
Nutrient Deficiency ◽  
Chemical Properties ◽  
Base Cations ◽  
Soil Nutrient ◽  
Land Suitability ◽  
Limiting Factors ◽  
Organic C ◽  
Fertility Status ◽  
Soil Fertility Status

Besides influenced by genotype, the quality and quantity of patchouli essential oil were controlled by soil as a growing medium. The development of patchouli plantation in Lamala District is still hampered by negative stigma from the community. It is believed, the strong absorption rate from patchouli could lead to soil nutrient deficiency. The purpose of this study was to determine soil fertility status and evaluate its suitability for patchouli plant in 3 land units (e.g., uncultivated, cultivated with fertilization, and cultivated without fertilization). The method used is an Exploratory-Descriptive Survey. The determination of soil properties was based on physical properties such as texture, and chemical properties such as pH, organic-C and nitrogen, P2O5 and K2O, base cations and cation exchange capacity/CEC, and Fe. The data then matched to Soil Fertility and Land Suitability Criteria for the patchouli plant. The result showed that the chemical properties in 3 land units had slightly acidic, high CEC, medium base saturation, moderate P2O5 content, and moderate organic-C content. Meanwhile, the K2O content of the land without patchouli was very low and the patchouli with and without fertilizer was low. Soil fertility status in 3 land units was classified as marginally suitable (S3-rc,na), this is due to the limiting factors; soil texture (rc) and P2O5 (na).

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