Cambisols, located mainly in hilly areas and hilly marginal zones, developed from materials with texture of loamy sands and sandy loams. In turn, Brunic Arenosols predominate on forested areas of Augustów Outwash Plain. Where sand is absent, the surface of the terrace consists of olive-khaki silty clays. Soil is made up of natural clay, sand and loam particles in various concentrations. In Punjab, Haryana, U. P., and Bihar this type of soil is found. The amplitude of the scroll bars and the meander wavelength is greater for this unit than for the younger meander belts, indicating different hydrologic conditions during deposition. When these species were planted in rows having contact with locust, they developed better, even in the first years of their plantation, than the plants having no contact with locust. The modern floodplain (Fm1) consists of meander belts and high-relief (2–3 m) scroll bars with crisp morphology and little or no clay draped over the surface (Figures 19.2, 19.4 and 19.5). Therefore an effective reduction of the soil PDL contents was not achieved with fallow. All maps, graphics, flags, photos and original descriptions © 2020 worldatlas.com, USDA Soil Taxonomy: Soil Orders And Their Major Characteristics. Grass), for the 25 years observation period 1991–2015. The fertilisers, sludge, and ash were mixed into the top 30-cm soil layer. Farmers usually have problems dealing with loam soil that has higher concentrations of clay. 7.11). The Balakhany Suite is made up of sandstones, siltstones, shales, chlidolites, loams, and loamy sands. In soil science, loamy sands with clay percentages near the upper limit are called heavy, and those with clay percentages near the lower limit are called light. Castaldi et al. Soil is composed of various sizes of tiny particles and organic matter that are categorized as sand, silt or clay. The uplands have sandy regolith, slightly more clayey in the swales, developed on mainly linear dunes of the Woorinen Formation. The E horizon, where present, has hue of 10YR to 5Y, value of 5 to 8, and chroma … The result of the LOOCV is summarized in Table 9.4. Loamy soil is composed of a mixture of clay, sand, silt, and decaying organic materials (humus). Clays within the floodplain are typically smectitic and sodic. The fire had a medium to high severity (Pereira et al., 2012). Table 31. The latter occur mainly on meadows (Bieniek, 2013). Half of each plot (i.e. The Sabunchi Suite consists of siltstones, poorly sorted sandstones, and shales. The spoils of the pumice stone mining in the Neuwid Basin are loamy sands in which the sand content strongly increases with depth. The incised valley of the Murray River (the upstream equivalent of the Murray Gorge of Twidale et al., 1978) contains several mappable geomorphic units and their accompanying sediments (Figure 19.1). The last type of zone soils in the study area is poor in nutrients, Podzols, developed mainly from well-sorted fine sands. There are some thin (>2 m) source bordering dunes of grey sand. Figure 19.5. Also Xu et al. AEM slice of the western part of the study area showing conductivity from 0 to 5 m below the surface. The composition of the loam is less important since the soil only needs to have these two qualities. Temporal course of mean soil PDL content (1991–2015) for selected variants of land use in a lysimeter trial (BMP—best management practice, OF—organic farming, fallow, Conv. The secondary podzolization process is widespread in autogenic mineral soils of postglacial landscape. Flow in these is determined by water level in the main Murray River. Diagrammatic representation of relationships between geomorphic and stratigraphic units. Sandy soil has a gritty element – you can feel sand grains within it, and it falls through your fingers. However, one of the oldest and most common uses of loam in construction is to mix it with straw and use the mixture to build walls. The Loamy Sand ecological site is found on nearly level to gently sloping soils in interdune areas and sloping playa terraces and plains. Afforestation of some spoil plots in this area was performed with black locust and oleaster It has been established (Keleberda, 1978) that after 11 years the spoil was transformed into a primitive soil, characterised by increased humus and N contents and invertase, urease, and proteinase activities in its 0-20-cm layer as compared with the uncultivated control plot (Table 31). László Pásztor, ... József Szabó, in Soil Mapping and Process Modeling for Sustainable Land Use Management, 2017. Results of the LOOCV Validation According to the Prediction of Salinity, S. Kiss, ... M. Drăgan-Bularda, in Developments in Soil Science, 1998. This spoil heap was recultivated with sweetclover (Melilotus volgicus) as a green manure plant. Where sand is absent, the surface of the terrace consists of olive-khaki silty clays. Width of image ~5 km. Instead, this type of sand is the product of years of eroded minerals and rocks. Improving your … Gardeners are often advised that a loamy garden soil is best for just about all plants. Before we can talk about where silica is found, it’s important to understand exactly what silica is. It has a fine, gritty texture and is relatively easy to spot because of the high concentration of sand. The spatial inference of the probability for the occurrence of vertic properties used the following environmental auxiliary variables, which were selected by the stepwise method of the MLRA: relief: aspect, topographic wetness index, SAGA wetness index, multiresolution ridge top flatness, multiresolution valley bottom flatness, diurnal anisotropic heating; climate: yearly mean temperature, precipitation, actual evaporation, evapotranspiration; satellite imagery: spring-NDVI, fall-NDVI, spring-NIR, fall-NIR, spring-R, fall-R; legacy soil map: physical properties: good and high water retention, saline soils, peaty soils. The dependency of PDL on mineral fertilization was apparent for the LS NWLYS. As Żurawska (1984) specifies, for revegetation of the areas denuded by emissions (SO3, SO2, HF, HCl)* from the inorganic chemical factory “Polchem” at Torun, experimental plots (each of 5×20 m) on the poor soils (loose and slightly loamy sands) of these areas were installed in 1976, at 500-m distance from the factory, The experiment comprised many variants: control (not treated); minerally, NPK-fertilised (150 kg N, 150 kg P2O5, and 150 kg K2O ha− 1); NPK + sewage sludge (100 and 2001 ha− 1) + ash (10 t ha− 1). Loamy Sand. (Field Capacity: 0.35 in) Sand : This type of soil is easy to cultivate but, since it allows for more drainage than needed, it is important to water it regularly, especially during summer days. MAE and RMSE have relatively low values, they are lower than the 10% of the value set. By definition, loamy soils are friable, possessing a mixture of clay, sand, and humus (and/or silt) that is ideal for growing plants.While those new to gardening and landscaping are probably familiar with terms such as "clay" and "sand," they may well be unfamiliar with "humus," so let's gain a better understanding of the meaning of that word before proceeding. NWLYS filled with S showed in trial DMF in the land management system grassland the weakest but still significant dependency of PDL on the annual mineral P fertilization. Loamy sands of relict dunes locally overlie the floodplain clays (Figure 19.2). This has been shown using: conventional Nmin measurements in a subtropical acidic soil (Zhao et al., 2014); 15N stable isotope approaches in a temperate loamy sand (eg, Nelissen et al., 2012); a combination of 15N stable isotope probing and PCR-based quantification of the ammonia monooxygenase gene (amoA) in a temperate Austrian soil (Prommer et al., 2014); and using amoA-targeted qPCR and clone libraries in a temperate Chinese soil (Song et al., 2014). Copyright © 2020 Elsevier B.V. or its licensors or contributors. Each treatment led to increased dehydrogenase activity as compared with the untreated control. Geomorphic differentiation of incised valley fill into terrace and floodplain deposits matches the distinct airborne gamma-ray patterns showing that the terrace units (Rufus Formation) are comparatively richer in K than in Th or U, whereas the floodplains (Coonambidgal Formation) show a strong signal in all three radioelements. In these two management systems (Intens. The soil PDL increased significantly on NWLYS managed conventionally according to BMP during the long-term investigations. In some cases, a soil sample may satisfy the definition of loam but still be unsuitable for agriculture due to poor drainage or low nutrient retention or both. Texture is fine sandy loam, loamy fine sand, loamy sand, fine sand or sand. Soil Soil is the thin top layer on the earth’s crust comprising rock particles mixed with organic matter. Some sands contain magnetite, chlorite, glauconite, or gypsum. Ash chemical analyses are described in Pereira et al. The intermediate floodplain meander belt (Fm2) that has rounded morphology with scroll bars that are not as distinct as those on the modern floodplain in the LiDAR DEM (Figures 19.2, 19.4 and 19.5). The terrace is flat, with local orange sand dunes and sand sheets. In 1979, Żurawska has analysed enzymologically and microbiologically the soils from plots sown with the grass-legume mixture. Good soil means the soil has the right nutrients for feeding the plants and a texture that holds water long enough for plant roots to access it, but well-draining enough that the roots are not sitting in water. Due to the formation of a surface seal, water infiltration is limited to the upper layer of the soil profile, leading to surface ponding after rainfall and loss through evaporation. The highest increase was recorded in a complexly treated plot, namely in that treated with NPK + 100 t ha− 1 sludge from industrial effluents + 10 t ha− 1 ash. This unit consists of clay and fine sandy alluvium and represents the Rufus Formation of Gill (1973) (Figures 19.2 and 19.3). Sandy loam Fine sandy loam Loam Silty loam sandy clay loam clay loam. The required target soil PDL content in class C of 90 mg kg−1 (VDLUFA, 2015) was achieved only in organically managed NWLYS without mineral P fertilization and in extensively and moderately conventionally managed grasslands whereas the other managements resulted in soils with unacceptable high P status. Some soils showed comparatively high levels of PDL contents, as expected from decades of fertilization with up to 60 kg P ha−1 a−1 of mineral P and up to 90 kg P ha−1 a−1 of manure P (cf. The amoA gene clone libraries in the study by Song et al. Pedology is … Leonid A. Buryakovsky, ... Fred Aminzadeh, in Petroleum Geology of the South Caspian Basin, 2001. For their study, Schröder and Schneider (1992) have selected eight young and three old recultivation plots. Result of the Validation in the Case of Being Vertic. Their resemblance to Cambisols is a consequence of plowing, resulting in Et horizon mixing with humus horizon (Świtoniak, 2014). 1. The sand, silt, and clay particles have a size of greater than 63 micrometers, greater than two micrometers, and less than two micrometers, respectively. By continuing you agree to the use of cookies. Types of soilare classified by the amount of sand, clay, and silt they contain. Table 9.2. The Monoman Formation is about 10-m thick at the western end and thins towards the east. The activity values significantly correlated with the numbers of heterotrophic microorganisms. Loamy soil; Loamy soil is one of the riches soil types because of its composition. Sand particles are the largest of the three. Consequently, it is ideal for the survival of organisms in the soil that are beneficial for plant life. The terrace is flat, with local orange sand dunes and sand sheets. Compartmentalisation of the Murray River incised valley fill into terrace and floodplain deposits of different ages. Question: A Catchment Soil Is Found To Be Loamy Sand That Has Saturated Hydraulic Conductivity 30 Mm/hr, Wetting Front Suction Head 120 Mm, Porosity 0.437, And Initial Soil Moisture Content 0.08. Conventional farming with moderate organic (up to 90 kg P ha−1 and up to 75 kg P ha−1 farmyard manure for potatoes and sugar beets, respectively, cf. However, the ability of loam to hold nutrients can be greatly increased by adding compost. The unploughed fallow vegetation cover was cut once per year according to the experimental scheme. Grass—conventional grassland, Intens. Usually, sandy soils would have at least 35% of sand and less than 15% of clay and silt materials. The soils have a loamy sand texture (83 ±2.19% sand, 10 ±2.31% silt, and 7 ±2.97 clay) with low organic matter content and cation exchange capacity. Sandy intervals IV, III, and II are present in the southern portion of the Apsheron Archipelago, whereas in the Baku Archipelago, units IV and III consist of siltstones, with their content increasing in Unit III and alternating with shales. Sand particles are the largest a The results obtained in the seventh year of the black alder and weeping birch plantations were similar to those registered in the experiment with black locust and green ash, small-leaf linden, or elm. (2014) revealed that biochar amendment seemed to decrease the diversity of AOA while the AOB diversity increased. Silica sand is a type of sand that mostly consists of tiny granules of quartz. Silica sand also consists of other fine particles of rock and mineral. The spoils were loamy sands. Most soils on the floodplain are slightly to moderately saline. The vegetation was mainly composed of Pinus pinaster and Quercus suber. The spatial inference of salt content used the following environmental auxiliary variables, which were selected by the stepwise method of the MLRA: relief: SAGA wetness index, multiresolution ridge top flatness, multiresolution valley bottom flatness; climate: yearly mean precipitation, actual evaporation; land cover: grassland, sparse vegetation; legacy soil map: chemical properties: saline soils, neutral, and calcic soils. Their better development, which became very evident 9 years after their planting, was accompanied by increased total N and chlorophyll contents in their leaves and by increased invertase, urease, and proteinase activities (Table 32); humus levels; amounts of total and hydrolysable N; and mobile P and K contents of their soils (especially in the 0-5-cm layer). Keleberda and Dan’ko (1975) studied the Dneprov spoil heap that resulted from the strip mining of the Chasov Yar refractory clays (Donetsk region). Andrzej Affek, ... BogusŁawa Kruczkowska, in Ecosystem Service Potentials and Their Indicators in Postglacial Landscapes, 2020. These are the alluvial terrace, raised several metres above the modern floodplain, the modern scroll plain, which is periodically inundated by floods and composed of three mappable meander tracts and a number of individual features such as dunes, lakes and lunettes. Colin F. Pain, ... Vanessa N.L. Figure 9.7. Abandoned channels of the Murray River consist of broad oxbow billabongs filled with semi-permanent water. Redoximorphic features in shades of brown, yellow, and gray range from none to common. (2014) recorded reduced N2O emissions in the presence of biochar under oxic conditions (50% water-holding capacity) in a subtropical acidic soil, although biochar increased overall nitrification rates. Interestingly, the effect was more pronounced in the pot experiments without plants. A feature that differentiates the soil cover of moraine uplands and glaciofluvial areas (floodplains) is the content of calcium carbonate. However, these are general proportions and may vary from one sample to another, which leads to the formation of different kinds of loam soils, such as sandy clay loam, silty loam, silty clay loam, and others. Plot of soil PDL contents versus yearly mineral P fertilization for soil texture classes loam (L), loamy sand (LS), silt (Si), and sand (S). It is comprised of roughly 35 percent sand and only 15 percent of clay and silt. Sandy clay Light clay Medium clay Heavy clay. The “Pereryv” Suite is composed predominantly of unsorted rocks, with rare sandstone and siltstone interbeds. (2015) questioned the time-dependent effect of biochar on aerobic nitrogen transformations in the field. In some cases, builders use loam to construct a layer on the inside walls of a house to help manage air humidity. Sánchez-García et al. Sand is ideal for drought-loving plants like cacti; however, because of its drainage properties, nutrients can be washed away. The terrace surface has a discontinuous cover of sand dunes (Woorinen Formation) and is about 60,000 years old (Rogers and Gatehouse, 1990). The C horizon has hue of 7.5YR to 5GY, value of 3 to 8, and chroma of 1 or 2; or it is neutral with value of 5 to 7. Clays. The silt soil is more fertile compared to the other three types of soil. Ralph Meissner, ... Lisa Haselow, in Climate Change and Soil Interactions, 2020. Many people prefer loamy sand soil for their gardening because this type of soil normally allows for good drainage. The majority of sand found naturally in the soil is not considered fine, but there are some people who might buy a bag of very fine textured sand to work into their gardens. Different subtypes of these soils occur on small areas, usually at the bottom of land depressions with high groundwater level and difficult natural drainage, at the foothills of moraine plateaus (colluvic material) in geochemically complexes coupled with deposits lying above and on river valley edges (Banaszuk, 1985). Loam soil that has a higher amount of sand and low amounts of organic content tends to show greater drainage capabilities. The probability of the occurrence of vertic properties in Hungary. According to Sánchez-García et al. Keleberda, Vestnik Sel’skokhozyaistvennoi Nauki, 1979, No. Without good soil, your plants will struggle to survive and you will be constantly feeding and watering them, to compensate for the poor soil. ). Nevertheless, the proportion of these soils in the study area is relatively small. Some of the prominent agricultural regions in the world have loam soil. Quartz itself comes in many varieties, according to its color and microstructure. Check out our previous post that explains what silica is . N. Hagemann, ... S. Behrens, in Biochar Application, 2016. Table 7.2). Therefore, it is also used in agricultural practices to improve soil fertility. In the same area, Keleberda (1979), Dan’ko et al. The very deep to deep course textured soils are well drained and have moderate permeability. However, they also did not find any correlation of amoA gene abundance and nitrogen speciation. A series of age-dependent changes were registered. Granules of silica sand range in diameter from 1/16 mm to 2 mm, which is approximately 2/1000 of an inch to 8/100 of an inch. The mean annual rainfall is 639.20 mm and the mean annual temperature is 14.8°C. The lack of experimental data precludes further speculation, hence additional systematic experiments are necessary to elucidate the effect of biochar on soil nitrification and nitrous oxide emission in more detail. Scroll bars are distinct in the LiDAR DEM. The sludge originated from a municipal-industrial and an industrial effluent treatment plant and the ash from a brown coal power plant. 2, p. 89. The Design Storm Is Given By The Following Hyetograph. This type of soil can also grow tulips, shrubs and other plants that don't need too much water. The floodplain is formed on sediments of the Coonambidgal Formation (Butler, 1958) and consists of three distinct meander belts with well-developed scroll bars (Figures 19.2, 19.4 and 19.5). Olive-khaki silty clay drapes over low-relief (~1 m) scroll bars are found in this unit. These results fully coincided with those concerning development of herbaceous vegetation in the plots. (2014) did not observe any biochar-induced differences in bacterial amoA gene or transcript copy numbers in a pot experiment with rape (Brassica napus). (2014) hypothesized that for soils in which microbial N2O production is dominated by nitrification, biochar addition might further increase N2O emissions, while biochar addition to soils dominated by microbial denitrification could lead to decreased N2O emissions. This type of sand is not exactly what you'd find at the beach. satellite imagery: spring-NDVI, fall-NDVI, spring-NIR; legacy soil map: physical properties: poor water retention and very high permeability, and infiltration rate. https://www.worldatlas.com/articles/what-is-loamy-soil.html Regular application of P mineral fertilizers affected the PDL soil contents, but there were significant differences (P<.001) between soil texture classes (Fig. They found a 13% increase in gross nitrification along with a 34% increase in gross N mineralization right after biochar amendment, but did not observe any difference in nitrogen transformations between biochar and control field plots 1 year after they started the experiment. Minor variations in floodplain elevation can significantly affect soil development. This unit is characterised by olive-khaki silty clay drapes over degraded scroll bars with a relief of about 2 m (Figures 19.2, 19.4 and 19.5). Enzyme activities in technogenic soils resulting from the recultivation of the Chasov Yar refractory clay strip mine spoils. 9.7) the areas with coarser particle size are well-delineated and coincide with the location of the main sand ridges in Hungary. If it is not a coarse sand and perhaps a sandy loam it may stick together better ; Clay soil has a smearing quality, and is sticky when wet. The results referring to vertic property map are shown in Table 9.3. Sand is an incredibly common form of micro-stone and mineral particles. Sandy loam has fewer nutrients since it drains faster than loam that retains moisture. Organic farming represented by 7 NWLYS had a low mean PDL content of 62 mg kg−1. In this work we analyzed ash CaCO3, pH, electrical conductivity (EC), and extractable calcium (Ca), magnesium (Mg), sodium (Na), potassium (K), aluminum (Al), manganese (Mn), iron (Fe), zinc (Zn), total phosphorous (TP), and silica (Si). Locally, Fluvisols developed as a result of fluvial accumulation processes. Estimate Total Infiltration (mm) After 1 Hour Of Rain By The Green-Ampt Method. Silicon dioxide is a chemical compound that is also known as silica. Figure 19.4. They are highly dispersive and form an impermeable seal after modest rain. Bacterial amoA gene abundance correlated with gross nitrification rates in the study by Prommer et al. Largest rivers valleys, which are typical geochemically dependent environments, are mostly filled with lowmoor peat and mineral sediments with loamy sand to sandy loam texture. The drainage of loam soil is usually affected by its composition. As it is not a uniform area, soil patches with high CaCO3 content in profiles bottom parts intertwine with patches of decalcified soils. These PDL contents were still comparatively high. A series of age-dependent changes were registered. The latter two studies reported increases of both archaeal and bacterial amoA gene copy numbers per gram soil and correlated archaeal amoA gene abundance to ammonia oxidation and gross nitrification rates. Keleberda and Drugov (1984) also described another experiment, in which black alder (Alnus glutinosa) was used as a symbiotic N2-fixing plant instead of black locust, whereas weeping birch (Betula verrucosa) served as the test tree. In some parts of the world, loam soil has proven useful in house construction, such as the post and beam method. Figure 19.2. (2014) this might explain why some soils show increased N2O emissions after biochar addition, although the same type of biochar effectively mitigates emissions in other soils. The uplands, which are covered with quartz sand dune, show a very low signature in all three radiogenic elements. However, it has an even higher percentage of sand compared to other soil types. On outwash plains, carbonate soils occur mainly in the proximal part on poorly sorted sandy gravel deposits, while completely decarbonated or decalcified to a depth of 1.5 m in the distal part on well-sorted and rewashed fine sands. The study area is dominated by zonal soils: Cambisols, Luvisols, and Podzols, which constitute the background for the mosaic of other soil taxonomic units (IUSS Working Group WRB, 2015). an unconsolidated sandy-clayey sedimentary rock containing 3–10 percent by weight clay particles with diameters less than 0.005 mm. Each component brings something to mix, and loamy soil contains a mixture of all three. On the predicted sandiness criterion map (Fig. Present mineral soils of postglacial landscapes, developed usually on sediments with loamy sand, sandy and gravelly loam, or loamy texture, are characterized by deep dehydration of mineral and organic mineral substances (oxides, hydroxides, organomineral complexes) and stronger denaturation of humic substances supported by large amplitudes of air temperature (Wicik, 2005). Loam with a higher content of organic matter tends to dry out faster. Keleberda, Pochvovedenie, 1978, No. 7.12). Additionally, loam soil is typically composed of these three components in the following weight ratio: 40% sand, 40% silt, and 20% clay. However, because of the clay particles in the soil, loam tends to hold water relatively well. Intensive drainage of black earths leads to a gradual disappearance of hydrogenic features of the substrate, deterioration of humus quality, and cambic horizon formation - such soils evolve toward Cambisols (Prusinkiewicz and Bednarek, 1999). Loamy coarse sand contains at least 25 percent of separates that are either very coarse or coarse and less than 50 percent of any other texture. The upper terrace is composed of Rufus Formation. Histosols and Gleysols developed from these materials in conditions of permanent moistening, while organic muck soils in periodically dry or dehydrated areas, where mineralization and humification processes occur, leading to disappearance of the original fibrous and sponge-like peat structure and formation of fine aggregate structure. In South India river valleys and coastal plains are made up of alluvial soil. Results of the LOOCV Validation for the Prediction of Sandiness. The data used for this work are from a fire that occurred at the end of July 2008 south of Lisbon (Portugal) at 38°33′N and 09°03′W at 55 m above sea level. 50 m2) was sown with a mixture of grasses and legumes, and the other half was planted with trees and bushes. For the S NWLYS, this relationship was weaker, and texture classes L and Si NWLYS ranged in between. [citation needed] Loam soil feels soft and crumbly and is easy to work over a wide range of moisture conditions. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B9780128052006000098, URL: https://www.sciencedirect.com/science/article/pii/S0166248198800251, URL: https://www.sciencedirect.com/science/article/pii/B978012816134000002X, URL: https://www.sciencedirect.com/science/article/pii/S0166248198800238, URL: https://www.sciencedirect.com/science/article/pii/B9780128180327000072, URL: https://www.sciencedirect.com/science/article/pii/B9780128034330000072, URL: https://www.sciencedirect.com/science/article/pii/B9780884153429500084, URL: https://www.sciencedirect.com/science/article/pii/S0166248198800093, URL: https://www.sciencedirect.com/science/article/pii/B9780128052006000104, URL: https://www.sciencedirect.com/science/article/pii/B9780444534460000197, Compilation of Functional Soil Maps for the Support of Spatial Planning and Land Management in Hungary, Soil Mapping and Process Modeling for Sustainable Land Use Management, The spatial inference of the cumulative thickness of sand to, The spoils of the pumice stone mining in the Neuwid Basin are, Andrzej Affek, ... BogusŁawa Kruczkowska, in, Ecosystem Service Potentials and Their Indicators in Postglacial Landscapes, Present mineral soils of postglacial landscapes, developed usually on sediments with, studied the Dneprov spoil heap that resulted from the strip mining of the Chasov Yar refractory clays (Donetsk region). Surface soils are primarily fine sandy loams and fine sands. Wong, in Developments in Earth Surface Processes, 2011. Loam soil with higher amounts of clay is also more compact, making it ideal for use in surfaces that require compacted sand, such as roads. Conventionally managed grassland with 2–3 annual cuts (DGM, extensive and conventional grassland), receiving 10–20 kg P ha−1 year−1, had 77 mg PDL kg−1. The soil has a pH level of 6 with high calcium content and the potential of retaining … Reproduced from: T.N. The oldest floodplain meander belt (Fm3) has a degraded scroll bar morphology.