scholarly journals Application of geo-spatial technologies in soil suitability assessment for village level crop planning in Chittaurgarh, Rajasthan

2021 ◽  
pp. 23-29
Author(s):  
RAMESHWAR SINGH

The agro-eco-sub region (AESR) 4.2 encompasses Aravalli foot hills, central Rajasthan plains and adjoining areas. Visual interpretation of geo-coded satellite data (IRS-P6, LISS IV MX) on the same scale was done before starting the field work. Based on the interpretative units a high intensity detailed soil survey was carried out in cluster of ten villages of Bhadesar tehsil of Chittaurgarh district on cadastral map (1:4000 scale) and the soils were characterized with respect to landforms. In all, 14 soil series were established and assessed for soil site suitability for maize, wheat, mustard and soybean. Daulatpura-c series soils are suitable for maize, mustard, soybean, and Daulatpura-d soils for soybean and moderately suitable for other crops. Soils of Bagund and Narbadiya-a series are moderately suitable for maize and marginally suitable for other crops. The soils of Bhadsoda-b series are marginally suitable only for mustard but moderately suitable for all other crops. Soils of Parliya series are moderately suitable only for mustard crop and marginally suitable for remaining crops. The soils of Guda series are marginally suitable for maize, wheat, mustard but not suitable for soybean. The soils of Nardhari-a and Nardhari-b are moderately suitable, Daulatpura-b, Bhadsoda-a and Narbadiya-b are marginally suitable whereas soils of Madanpura and Daulatpura are not suitable for all the crops due to limitations of shallow soil depth.

Author(s):  
V. Ramamurthy ◽  
D. Mamatha ◽  
K.V. Niranjan ◽  
R. Vasundhara ◽  
K. Ranjitha ◽  
...  

Soil - crop suitability studies provide information on choice of crops to be grown on best suited soil unit for maximizing crop production per unit of land, labour and inputs. Soil-site suitability evaluation for identifying potential areas of pigeon pea (Cajanus cajan) was conducted at 1:8000 scale in Basavanagiri of Mysore district, Karnataka. Detailed soil survey of study area was carried out using cadastral map and four soil series mapped with 23 soil-mapping units. The results showed that 22 per cent of total area covering four mapping units of Bg 3 soil series is highly suitable for growing pigeon pea. Whereas, sixteen units covering 122 ha is moderately suitable and two mapping units of Bg1soil series are found not suitable for pigeon pea cultivation. Soil depth, topography, effective rooting depth and gravelliness found to be major limitations for pigeon pea production in the study area.


Agropedology ◽  
2019 ◽  
Vol 26 (1) ◽  
Author(s):  
R.K. Jena ◽  
◽  
V.P. Duraisami ◽  
R. Sivasamy ◽  
S. Shanmugasundaram ◽  
...  

The Meghalaya plateau occupying a major portion of entire state of Meghalaya remains as an important part of the ancient Deccan plateau. A detailed soil survey (1:10,000 scale) of the Jirang block of Ri-Bhoi district was carried out using IRS-P6 LISS IV and Cartosat-1 images. Typical pedons representing major landforms of the study area viz., denudational hills, plateau and inter hill valley plain developed from granite–gneiss occurring under varying land use were characterized, classified and assessed. The soils were deep to very deep, dark grayish brown to red in colour, extremely acid to moderately acid in reaction and high in organic carbon; the latter decreased with increase in depth. Soils on high denudational hills, highly dissected upper and lower plateau and lowly dissected lower plateau are highly weathered (kandic horizons) with base saturation <35% and are classified to Ultisols. Soils on low denudational hills are highly weathered Alfisols. Soils of moderately dissected lower plateau and those on upper valley region are both Alfisols, but the latter has lower base saturation than the former. The soils of the lower valley are Alfisols with an aquic moisture regime.


Agropedology ◽  
2019 ◽  
Vol 28 (2) ◽  
Author(s):  
G. Tiwari ◽  
◽  
A. Jangir ◽  
R. P. Sharma ◽  
B. Dash ◽  
...  

Detailed soil survey (1:10000 scale) was carried out using base map prepared from satellite data (IRS-P6 LISS IV and Cartosat-1) and Digital Elevation Models (DEM) in conjunction with Survey of India (SOI) Toposheets of 1:50000 scale in Valia block, Bharuch district of Gujarat. On the basis of landform, slope, land use/land cover and ground truth, six landscape ecological Units (LEUs) were delineated and six soil series were identified in the block. Five soil series occur on alluvial plain (cover 66.16 %) and one soil series occupies pediplain 27.61 %. These series were mapped into ten soil mapping units as phases of soil series. The representative pedons of alluvial plain were moderately deep to very deep and their sand, silt and clay content ranged from 8.2 to 44.4, 9.8 to 40.2 and 43.8 to 55.6 per cent, respectively. These pedons were neutral to strongly alkaline (pH 6.8 - 9.7), non-saline with low to high organic carbon (0.18 – 1.2 %) content, low to high calcium carbonate (5.9 - 26.6 %) and high CEC [>35 cmol (p+) kg-1]. Exchangeable complex of these pedons were dominated by Ca2+ followed by Mg2+, Na+ and K+ cations with high base saturation (72.0 to 99. 4 %). Soils were classified as Vertic Haplustepts, Typic Haplusterts, Typic Calciustepts, Typic Haplustepts and Sodic Haplusterts. The representative pedon of pediplains was shallow, dark brown (7.5YR3/2), clayey, strongly alkaline (pH>8.5), non-saline (<2 dSm-1) and had moderate organic carbon (0.50-0.75 %) and calcium carbonate (5-15 %) with high CEC [>35 cmol (p+) kg-1] and classified as Lithic Haplustepts. The soils were evaluated for their suitability for commonly grown crops (cotton, pigeon pea, wheat and chick pea) and mapping unit 2 and 4 were highly suitable for cotton cultivation and other were moderately to marginal suitable for other crops.


1981 ◽  
Vol 11 (2) ◽  
pp. 362-370 ◽  
Author(s):  
Bruce K. Ferguson

When a sizable forested area is to be managed, some kind of map site quality for that area is necessary so that a determination can be made of the amount and distribution of lands having different levels of site quality. A manual method for chloropleth mapping of red oak site quality using soil-site studies was developed. It mapped site quality as a function of slope gradient, slope position, slope orientation, and soil depth. It consisted of selecting the soil-site study, establishing a uniform mapping format, classifying the independent variables into mapped or mappable ranges, mapping each independent variable separately, and manually overlaying these maps to produce a single site-quality map. The accuracy of the result, the usefulness of the method, and the possibility of different procedures in other studies are discussed.


1986 ◽  
Vol 66 (2) ◽  
pp. 315-321 ◽  
Author(s):  
N. C. WOLLENHAUPT ◽  
J. L. RICHARDSON ◽  
J. E. FOSS ◽  
E. C. DOLL

This study presents a method for calibrating electromagnetic induction instrument readings with saturated paste electrical conductivity (ECe) for field mapping purposes. Each meter reading represents an integration of the apparent soil electrical conductivity (ECa) over the meter’s response depth. To correlate the meter readings with measured ECe within soil depth increments, several pedons representing a range of soil salinity for the survey area were sampled in 30-cm increments to a depth corresponding to the meter response. A weighting procedure based on the meter response-depth function was developed to condense the multiple ECe by depth measurements into a single weighted area specific value. These values were correlated with the apparent soil electric conductivity from the electromagnetic induction instrument by simple linear regression. This technique is designed for soil association of similar parent materials. The resulting regression equation yields a quick reliable equation that avoids complex mathematics and converts the instrument readings into weighted forms of commonly used saturated paste electrical conductivity values. Key words: Soil survey, electrical resistance


Geoderma ◽  
2014 ◽  
Vol 213 ◽  
pp. 334-345 ◽  
Author(s):  
S.K. Subburayalu ◽  
I. Jenhani ◽  
B.K. Slater

1984 ◽  
Vol 103 (2) ◽  
pp. 377-386 ◽  
Author(s):  
J. W. S. Reith ◽  
R. H. E. Inkson ◽  
K. S. Caldwell ◽  
W. E. Simpson ◽  
J. A. M. Ross

SUMMARYTopsoils from eight different soil series were substituted for the local soil in three arrangements involving two depths of topsoil and either local or sand subsoils. A rotation of crops was grown with uniform annual N, P and K treatments for 24 years. A peaty soil produced the highest yields of grain, straw and grass, presumably because it released more N than the mineral soils, but an average yield of swedes. No mineral soil consistently produced higher yields of all crops and, although there were some significant differences, the variations in yield were generally relatively small. The deep topsoil consistently produced the highest yields. Topsoil with sand subsoil gave the lowest yields of grain, straw and swedes but not of grass.All the crops on the peaty soil had higher concentrations of P in the dry matter than those from the seven mineral soils. Crops and herbage on the Laurencekirk and Foud-land soils had consistently slightly higher P concentrations than those on the other five mineral soils. Compared with the amounts applied, the crops removed considerably more K but only 45–68% of the P. There were large differences in the proportion of the P residues extractable by acetic acid from the different soil series.The depth of topsoil was at least as important as soil type in determining yield, and the results support the use of soil depth as one of the main factors used in the Land Capability Classification for Agriculture.


Author(s):  
Rajendra Hegde ◽  
M. B. Mahendra Kumar ◽  
K. V. Niranjana ◽  
K. V. Seema ◽  
B. A. Dhanorkar

Aims: The detailed survey of the microwatershed was carried out by using digitized cadastral map as a base. The objective of the investigation was undertaken to characterize and classify the soils of Harve-1 microwatershed of Chamarajanagar district, Karnataka. Place and Duration of Study: soil survey was done and soil samples were collected from Harve-1 microwatershed of Chamarajanagar district in the year 2016. The laboratory characterization and soil classification work was done at National Bureau of soil survey and land use planning, Regional centre Hebbal, Bangalore, Karnataka. Methodology: Using Cartosat-1 and LISS-IV merged satellite data at the scale of 1:7920 were used in conjunction with the cadastral map as a base. Soil profiles were exposed and location of soil profiles was recorded using GPS and studied from each landform for describing morphological characteristic as per the guidelines given in USDA soil survey manual (Soil Survey Staff 2014). Based on the soil-site characteristics, ten soil series were identified using the method employed by Reddy (2006). Horizon wise soil samples were collected, processed and analysed for various properties by adopting standard procedure. Results: The study showed that, the soils were moderately shallow to moderately deep in depth. The colour of the soils varied from dark red to dark reddish brown. Texture of the soil varied from sandy loam to sandy clay loam in surface and sandy clay loam to sandy clay in subsurface. The structure was weak medium sub-angular blocky to moderate medium sub-angular blocky throughout the profile in all series. The consistency of majority of the soils were friable, slightly sticky and slightly plastic in surface and friable, moderately sticky and moderately plastic in subsurface. Soil reaction varied from slightly acidic to alkaline (5.70 to 8.18) in nature. Organic carbon content of the soils was low to high (0.20 to 1.24 per cent). Calcium and magnesium are dominant exchangeable cations followed by sodium and potassium. The CEC of the soils ranged from 3.17 to 25.76 cmol (p+) kg-1. Major proportion of soil series in the microwatershed belonged to the order of Alfisols (Paralitic Rhodustalfs, Typic Rhodustalfs, Typic Haplustalfs and Rhodic Paleustalfs) except Honnenahalli (HNH) series belong to the order of Inceptisols (Typic Haplustepts). Conclusion: The soils of the microwatershed were comes under the order of alfisols and inceptisols. This generated information can help the researchers, farmers and planners to manage the natural resources for future planning and also to achieve sustainable productivity.


2019 ◽  
Vol 8 (2) ◽  
pp. 3753-3755

The district Gurugram in the state Haryana has seen significant extension & development during the last few years. In this paper, the change in land-use/cover has been estimated with time range of 2007 - 2017 and the change detection was quantified. The land-use/cover data generated through satellite imagery has been classified into five major classes i.e., (i) Built-up land (ii) Water Bodies (iii) Barren Land (iv) Agricultural Land (v) Vegetation. The investigation was helped out through Geoinformatics approach by using IRS-P6- LISS-III sensor of 2007 and IRS-P6-LISS-IV sensor of 2017. Observing of land-use/spread mirrored that changes were more noteworthy in degree over the time range of 10 years in the land under various classes. The most sensational changes are the increase in built-up land and barren land. Apart from this decrease in agricultural, water bodies and vegetation cover area also. Results demonstrates an expansive change in the territory of various land use classifications amid the period from 2007 to 2017.The agriculture land covering an area of about 55.27% in 2007 reduced to 43.42% in 2017. The built up area increased from 15.97 % in 2007 to 30.23 in 2017. The barren land area increased from 6.45 % in 2007 to 16.97 in 2017 The Water bodies decreased from 4.65 % in 2007 to 1.05 % in 2017. The vegetation area has also decreased from 17.66 % in 2007 to 8.33 % in 2017. Urban extension and various anthropogenic exercises have brought genuine misfortunes of agricultural land, vegetation and water bodies.


Author(s):  
А.Е. ОСИПЕНКО ◽  
Д.В. ГИЛЯЗОВА ◽  
К.А. БАШЕГУРОВ ◽  
Л.П. АБРАМОВА ◽  
И.А. ПАНИН

В статье описаны исследования почв первого участка питомника Уральского учебно-опытного лесхоза. Полевые работы осуществлялись в сентябре 2020 г. Исследования были начаты в связи с необходимостью составления проекта реконструкции питомника. В ходе почвенной съемки была заложена сеть из 22 точек исследования на площади 2,8 га. Схема размещения точек исследования приведена в статье. Всего было заложено 2 разреза, 8 полуразрезов, 12 прикопок. Описание морфологических признаков почвы заложен- ных разрезов также приводится в данной статье. Установлено, что средняя мощность пахотного горизон- та исследуемого участка составила 29,8 ± 1,4 см при минимальной мощности 18 см и максимуме 44 см. В точках исследования было отобрано 36 почвенных образцов в двух повторностях. Почва питомника была отнесена к типу дерново-подзолистые окультуренные и виду дерново-слабоподзолистые. По мощности пахотного слоя исследуемые почвы классифицированы как среднепахотные с признаками средне- и силь- ноокультуренных почв. В одном из заложенных разрезов было зафиксировано, что подзолистый горизонт полностью перепахан и даже в горизонте В видны следы трансформации. Во втором разрезе горизонт А2 вовлечён в пахотный слой не полностью, а подпахотный горизонт (А2В) имеет белесовато-бурую окраску. Исследования почв питомника Уральского учебно-опытного лесхоза будут продолжены в лаборатории ка- федры лесоводства УГЛТУ. На основании данных исследований планируется составить почвенную карту и оценить почвы питомника на предмет пригодности для выращивания декоративного и лесного поса- дочного материала. Работы по почвенной съемке на втором и третьем участках исследуемого питомника запланированы на лето 2021 г. Field work was carried out in September 2020. Research was begun in connection with the need to draw up a project for the reconstruction of the nursery. During the soil survey, a network of 22 study points was laid on an area of 2. 8 hectares. The diagram of study point displacement is given in the article. In total, 2 cuts, 8 half-cuts, 12 traps were laid. A description of the morphological signs of the soil of the laid sections is also given in this article. It was established that the average power of the arable horizon of the study site was 29.8 ± 1.4 cm, with a minimum power of 18 cm and a mac-simum of 44 cm. At the points of study, 36 soil samples in two repetitions were selected. The soil of the nursery was classifi ed as der-new-podzolic cultivated and sod-slightly podzolic. According to the capacity of the arable layer, the studied soils are classifi ed as medium-arable with signs of medium and highly cultured soils. In one of the laid cuts, it was recorded that the podzolic gori-umbrella was completely swamped, and even in horizon B there are signs of transfer. In the second section, the horizon А2 not involved in the arable layer by half, but the under-arable horizon (А2В) has a whitish-brown color. Soil studies of the nursery of the Ural Educational and Experimental Forestry will be continued in the laboratory of the Department of Forestry of USFEU. Based on these studies, it is planned to draw up a soil map and evaluate the nursery soils for suitability for growing ornamental and forest planting material. Soil survey work on the WTO and the third section of the studied nursery is planned for the summer of 2021.


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