scholarly journals Characterization and Evaluation of Soils Occurring on Toposequence In Eastern Plains, Bhilwara District, Rajasthan for Land Use Planning

Agropedology ◽  
2019 ◽  
Vol 26 (1) ◽  
Author(s):  
R. K. Naitam ◽  
◽  
R. S. Singh ◽  
P. C. Moharana ◽  
S. K. Singh ◽  
...  
Keyword(s):  
Land Use ◽  
Calcium Carbonate ◽  
Land Use Planning ◽  
Sandy Loam ◽  
Soil Depth ◽  
Soil Survey ◽  
Carbonate Content ◽  
Organic Carbon Content ◽  
Hilly Terrain ◽  
Calcium Carbonate Content

A reconnaissance soil survey was undertaken at 1:50, 000 scale to characterize and evaluate the land resources of Bhilwara district in Rajasthan for land use planning. Based on landforms seven typifying pedons along the toposequence were studied for their soil-site and physico-chemical characteristics in eastern plain. The study indicates that the soils of steeply sloping hilly terrain were very shallow, excessively drained, dark brown, sandy loam in texture with fine, weak sub-angular blocky structure. The soils of very gently sloping plain and nearly level plain are deep to very deep, imperfectly drained to well drained, olive brown to dark brown soils associated with higher water content at -33 and -1500 kPa and the organic carbon content was higher in the surface soils compared to subsurface and it decreased with depth. The calcium carbonate content ranged from 1.0 to 36.5 percent and the calcium carbonate content increased with depth. The soils of the hilly terrain (P1) and undulating pediment (P2) have been classified as Lithic Ustorthents and Lithic Haplustepts, respectively. Soils of the intervening valley (P3), undulating plain (P4) and gently sloping plain (P5) categorized as Typic Haplustepts, whereas the soils occurring on the very gently sloping plains (P6) were classified as Vertic Haplustepts. The soils formed on nearly level plain have been classified as Sodic Haplusterts (P7). The soils are grouped under IIes, IIIs, IVes and Ves land capability sub-classes and 2s, 3s, 3st, 3sd, 4st and 5st land irrigability sub-classes. The land suitability for major crops growing in the region indicated that the soils of the hilly terrain (P1) and undulating pediment (P2) are not suitable for most of the crops due to their very severe limitations of slope, erosion and soil depth. The soils of the intervening valley (P3) were moderately suitable for maize and sorghum and marginally suitable for wheat, cotton and mustard. Soils of undulating plain (P4) were highly suitable for maize, sorghum, wheat and moderately suitable for groundnut, cotton and gram. Soils of the gently sloping plains (P5) were highly suitable for sorghum; moderately suitable for maize, wheat, cotton and mustard; and marginally suitable for groundnut and gram. Soils of the very gently sloping plain (P6) were moderately suitable for sorghum and marginally suitable for maize, wheat, cotton and unsuitable for groundnut and gram. Soils of the nearly level plains were moderate to marginally suitable for other crops and unsuitable for groundnut and gram (P7).

scholarly journals Irrigation suitability evaluation of Zamra irrigation scheme, Abergelle District of Wag-Himra Zone, Amhara Region Ethiopia

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Workat Sebnie ◽  
Enyew Adgo ◽  
Hailu Kendie
Keyword(s):  
Land Use ◽  
Calcium Carbonate ◽  
Evaluation Method ◽  
Sandy Loam ◽  
Soil Depth ◽  
Sustainable Land Use ◽  
Limiting Factors ◽  
Carbonate Content ◽  
Irrigation Scheme ◽  
Suitability Evaluation

Abstract Background Assessment of suitable lands for irrigation is indispensable to plan and implement different programs in a cost-effective approach for sustainable land use planning and efficient utilization of the land. Hence selecting proper land use based on land suitability evaluation will enhance the productivity per unit area and ensures the sustainable use of land resources. Therefore, the research was designed to evaluate the suitability of the soil properties of Zamra irrigation scheme for irrigation purposes. Method For this study about 195.16 ha of land were evaluated for irrigation suitablity. Four soil profile pits were opened in the representative site of the scheme based on slope, texture, soil color and soil depth. Soil samples were collected from the soil mapping units for analysis of texture, electrical conductivity, and calcium carbonate content, whereas slope, drainage and soil depth were directly measured at the field. The evaluation was carried out using a parametric evaluation method. Results The results of the study revealed that four types of soils were identified namely, Rehodic Nitisol(eutric), Haplic Regosol (eutric) Eutric Regosol, Leptic Regosol (eutric, loamic), and Vertic Cambisol (Hypereutric). The soil texture consists of sandy loam and sandy clay loam at the surface and subsurface soil and the soil depth of study area varied from shallow to very deep. The soil of the scheme was free from salinity and the status of calcium carbonate was at a low level. The slope of the study area was ranged from flat (0–3%) to slopping (8–15%). Generally, 80.64 ha (41.32%) of the scheme was moderately suitable whereas 71.68 ha (36.73%) of the land was marginally suitable for irrigation. Due to major limiting factors of soil depth and slope about 42.84 ha of the land (21.95%) were not currently suitable for irrigation. Conclusion In the study area, the major limitations were slope and soil depth. Therefore, to increase production and productivity of the scheme, land improvement operations are suggested.

Design of On-Site Treatment Systems in Caliche Soils

1993 ◽  
Vol 28 (10) ◽  
pp. 83-87
Author(s):  
H. M. Liljestrand ◽  
S. M. Parten
Keyword(s):  
Calcium Carbonate ◽  
Organic Carbon ◽  
Experimental Studies ◽  
Organic Content ◽  
Carbonate Content ◽  
Organic Carbon Content ◽  
Loading Rates ◽  
Calcium Carbonate Content ◽  
High Calcium ◽  
Drain Field

Caliche soils, weathered limestone soils of high calcium carbonate content and and low organic content, are common in regions with limestone sedimentary geology and arid to semi-arid climate. Currently, there are no standards other than hydraulic soil properties for the design and construction of on-site wastewater treatment systems in caliche soils. Experimental studies were performed to investigate biological transformation rates for organic carbon to inorganic carbon and organic nitrogen to nitrate, using four different caliche soils and the range of recommended hydraulic loading rates. The experimental results indicate that oxygen demanding materials readily decay over short distances in caliche soils. Efficiency of removal for TOC was >97%. However in three of the four caliche soils, nitrate concentrations were significantly higher than the background and the control cases. The high calcium carbonate content of the caliche soils leads to solutions well buffered with respect to pH and alkalinity. Nitrification rates are very rapid in these soils which are buffered at the optimum pH range for Nitrosomonas growth. The low organic carbon content of caliche soils results in low denitrification rates. Nitrate in the effluent is the limiting pollutant in the determination of appropriate loading rates, drain field area, and land requirements. Phosphate and metal aqueous concentrations are acceptably low and are limited by solubility control in the open system equilibrium model.

Chemical properties of salt-affected soils in north Kent and their relationship to soil instability

1987 ◽  
Vol 109 (1) ◽  
pp. 1-6 ◽  
Author(s):  
P. J. Loveland ◽  
J. Hazelden ◽  
R. G. Sturdy
Keyword(s):  
Electrical Conductivity ◽  
Calcium Carbonate ◽  
Organic Carbon ◽  
Carbon Content ◽  
Carbonate Content ◽  
Organic Carbon Content ◽  
Exchangeable Sodium ◽  
Calcium Carbonate Content ◽  
Soil Instability ◽  
Dispersion Ratio

SummarySoil instability, as measured by the dispersion ratios of the reclaimed salt-marsh soils of ca. 70 km2 of north Kent, was assessed on samples taken from 0–15, 35–50 and 70–85 cm depths from sites at the intersects of a 250 m square grid or along transects. The dispersion ratios were related to other soil properties including exchangeable sodium, potassium and magnesium percentages, organic carbon content, calcium carbonate content and electrical conductivity. The dispersion ratio correlates most closely with exchangeable sodium percentage and organic carbon content; weaker correlations exist with exchangeable potassium and calcium carbonate contents. Dispersion ratios rise sharply, i.e. reflect a marked increase in soil instability, when organic carbon content is less than 2·5% and calcium carbonate content is less than 2%. Magnesium has little effect on the dispersion ratio. The soil solution salt concentration (as expressed by electrical conductivity) is too low over much of the area to promote flocculation, and hence stability, of the soil clays.

scholarly journals Opto‐electrochemical Dissolution Reveals Coccolith Calcium Carbonate Content

2021 ◽  
Author(s):  
Minjun Yang ◽  
Christopher Batchelor-McAuley ◽  
Samuel Barton ◽  
Rosalind E.M. Rickaby ◽  
Heather A. Bouman ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Carbonate Content ◽  
Electrochemical Dissolution ◽  
Calcium Carbonate Content

scholarly journals Developing a User Friendly Decision Tool for Agricultural Land Use Allocation at a Regional Scale

2017 ◽  
Vol 11 (5) ◽  
pp. 11 ◽  
Author(s):  
Sumbangan Baja ◽  
Samsu Arif ◽  
Risma Neswati
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Agricultural Land ◽  
Land Suitability ◽  
Soil Survey ◽  
Agricultural Land Use ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Land Use Allocation ◽  
User Friendly

Agricultural land use planning should always be guided by a reliable tool to ensure effective decision making in the allocation of land use and activities. The primary aim of this study is to develop a user friendly system on a spatial basis for agricultural land suitability evaluation of four groups of agriculture commodities, including food crops, horticultural crops, perennial (plantation) crops, grazing, and tambak (fish ponds) to guide land use planning. The procedure used is as follows: (i) conducting soil survey based on generated land mapping units; (ii) developing soil database in GIS; and (iii) designing a user friendly system. The data bases of the study were derived from satellite imagery, digital topographic map, soil characteristics at reconnaissance scale, as well as climate data. Land suitability evaluation in this study uses the FAO method. The study produces a spatial based decision support tool called SUFIG-Wilkom that can give decision makers sets of information interactively for land use allocation purposes.This user friendly system is also amenable to various operations in a vector GIS, so that the system may accommodate possible additional assessment of other land use types.

Studies in the absorption and excretion of certain minerals by poultry. III. The influence of different levels of dietary calcium upon the retention of calcium, phosphorus, carbonate and chloride

1946 ◽  
Vol 36 (4) ◽  
pp. 283-288 ◽  
Author(s):  
Cyril Tyler
Keyword(s):  
Calcium Carbonate ◽  
Dietary Calcium ◽  
Egg Laying ◽  
Carbonate Content ◽  
Phosphorus Excretion ◽  
Calcium Carbonate Content ◽  
High Calcium ◽  
Calcium Phosphorus ◽  
Different Levels

1. The daily retention of calcium, carbonate, phosphorus and chloride was studied using four birds and changing the calcium carbonate content of the ration every 5 days for 15 days.2. It was shown that high calcium diets result in a much lower retention of calcium and thin-shelled eggs are produced.3. Retention of calcium was higher in the laying than in the non-laying bird when calcium carbonate was fed.4. High calcium diets depressed the retention of phosphorus, and in one case the retention was negative, even when no eggs were laid. Laying birds gave negative values for retention because of the heavy phosphorus excretion associated with egg laying.5. High calcium diets also depressed the retention of chloride, and on occasion led to negative retention values.

Sign in / Sign up

Export Citation Format

Share Document