FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2969144628> ?p ?o ?g. }

• W2969144628 endingPage "310" @default.
• W2969144628 startingPage "217" @default.
• W2969144628 abstract "Sandy soils cover approximately 900 million ha worldwide particularly in arid and semi-arid regions. There are extensive areas of sandy soils under cultivation, but the soil fertility is often low and dependent on the levels of soil organic carbon (SOC). Here, we review SOC levels of sandy soils across the world using pedon databases, data from literature, and three detailed case studies. Pedons were selected from five major databases and the pedons had a minimum of 850 g sand kg− 1 in the top 30 cm. Sandy soils occur in all climates and several soil orders (mainly Alfisols, Entisols, Inceptisols, Spodosols, Ultisols). Soil organic carbon was highest in sandy soils of the temperate and cold zones (mean 19 g kg− 1), and lowest in soils of the arid zone (< 5 g kg− 1). The SOC concentrations was highest when mean annual precipitation was between 700 and 1300 mm, and SOC was lower when annual temperatures were higher. Sandy soils under forest had on average 23 g SOC kg− 1 whereas the soils under prairie had on average 7 g SOC kg− 1. Spodosols had the highest SOC concentrations, and SOC was lowest in Aridisols. The average A-horizon thickness of sandy soils was 17 cm, and it was thickest in Mollisols, and thinnest in Inceptisols. The thickness of the A-horizon is important since most of the SOC of sandy soils is found in the A-horizon. Over 32,000 papers have been published on sandy soils since 1914, and in the past 10 years, some 1000–1800 papers are annually published on sandy soils. We extracted papers since the early 1990s, and grouped them by continent, land cover, soil order, and focus of the research. Three soil-forming processes have been extensively studied in relation to SOC and sandy soils: podzolization, humification, and melanization. Several studies found that SOC increases when sandy soils were fertilized, but sandy soils become more water repellent with an increase in SOC and a decrease in pH. From published literature, it was found that SOC was high in sandy soils under forest (≤ 90 g kg− 1) and grassland (≤ 187 g kg− 1), and low in sandy soils under agriculture (≤ 38 g kg− 1) or under shrub (≤ 36 g kg− 1). Lastly, we present case studies from Southern Africa, Western Europe, and North America. Sandy soils cover about 273 million ha in Africa, and SOC rarely exceeds 10 g SOC kg− 1 in the top 30 cm. The plaggen soils of Western Europe have high SOC (up to 66 g kg− 1) due to the long-term additions of sod, litter, manure, and sea sand to increase the soil fertility. In the Wisconsin Central Sand Plains, SOC stocks in soils under agriculture were high (60 Mg ha− 1) compared to the soils under forest (15 Mg ha− 1) and grassland (25 Mg ha− 1). Available water capacity increased with an increase in SOC. From this review, we conclude that sandy soils are found throughout the world, and the sandy soils in the temperate and cold zones have the highest SOC levels. In sandy soils, soil organic carbon increased the cation exchange capacity and lowered the bulk density. Soil organic carbon levels can be significantly increased in sandy soils under agriculture when amendments are made in combination with irrigation." @default.
• W2969144628 created "2019-08-22" @default.
• W2969144628 creator A5013987545 @default.
• W2969144628 creator A5032364441 @default.
• W2969144628 date "2019-01-01" @default.
• W2969144628 modified "2023-09-29" @default.
• W2969144628 title "Soil organic carbon in sandy soils: A review" @default.
• W2969144628 cites W1153540696 @default.
• W2969144628 cites W1510917207 @default.
• W2969144628 cites W1520812870 @default.
• W2969144628 cites W1549730930 @default.
• W2969144628 cites W1553693322 @default.
• W2969144628 cites W1572448666 @default.
• W2969144628 cites W1898559262 @default.
• W2969144628 cites W1903784850 @default.
• W2969144628 cites W1963542952 @default.
• W2969144628 cites W1966242419 @default.
• W2969144628 cites W1966526697 @default.
• W2969144628 cites W1967511750 @default.
• W2969144628 cites W1968252819 @default.
• W2969144628 cites W1968859579 @default.
• W2969144628 cites W1974297810 @default.
• W2969144628 cites W1977078320 @default.
• W2969144628 cites W1978166588 @default.
• W2969144628 cites W1982056146 @default.
• W2969144628 cites W1982503645 @default.
• W2969144628 cites W1982872338 @default.
• W2969144628 cites W1983133288 @default.
• W2969144628 cites W1983189344 @default.
• W2969144628 cites W1983868675 @default.
• W2969144628 cites W1985710184 @default.
• W2969144628 cites W1985736943 @default.
• W2969144628 cites W1986432380 @default.
• W2969144628 cites W1986744503 @default.
• W2969144628 cites W1987397818 @default.
• W2969144628 cites W1990197199 @default.
• W2969144628 cites W1991142729 @default.
• W2969144628 cites W1991154931 @default.
• W2969144628 cites W1991614331 @default.
• W2969144628 cites W1991910223 @default.
• W2969144628 cites W1991943464 @default.
• W2969144628 cites W1992166351 @default.
• W2969144628 cites W1992394954 @default.
• W2969144628 cites W1993415357 @default.
• W2969144628 cites W1994228237 @default.
• W2969144628 cites W1995229583 @default.
• W2969144628 cites W1998924762 @default.
• W2969144628 cites W1999217309 @default.
• W2969144628 cites W1999292140 @default.
• W2969144628 cites W1999390601 @default.
• W2969144628 cites W2000442189 @default.
• W2969144628 cites W2002247287 @default.
• W2969144628 cites W2005187188 @default.
• W2969144628 cites W2005483029 @default.
• W2969144628 cites W2006371148 @default.
• W2969144628 cites W2006486223 @default.
• W2969144628 cites W2007370078 @default.
• W2969144628 cites W2008147445 @default.
• W2969144628 cites W2008533146 @default.
• W2969144628 cites W2010626868 @default.
• W2969144628 cites W2012628230 @default.
• W2969144628 cites W2013741687 @default.
• W2969144628 cites W2014461778 @default.
• W2969144628 cites W2016609805 @default.
• W2969144628 cites W2021352418 @default.
• W2969144628 cites W2025363791 @default.
• W2969144628 cites W2026969452 @default.
• W2969144628 cites W2027559858 @default.
• W2969144628 cites W2028128690 @default.
• W2969144628 cites W2028364867 @default.
• W2969144628 cites W2028573595 @default.
• W2969144628 cites W2028992283 @default.
• W2969144628 cites W2029538547 @default.
• W2969144628 cites W2029609280 @default.
• W2969144628 cites W2029888969 @default.
• W2969144628 cites W2030272725 @default.
• W2969144628 cites W2031333405 @default.
• W2969144628 cites W2031521972 @default.
• W2969144628 cites W2033020410 @default.
• W2969144628 cites W2033404926 @default.
• W2969144628 cites W2034246364 @default.
• W2969144628 cites W2034927625 @default.
• W2969144628 cites W2035417172 @default.
• W2969144628 cites W2036558152 @default.
• W2969144628 cites W2036653581 @default.
• W2969144628 cites W2037024552 @default.
• W2969144628 cites W2038136711 @default.
• W2969144628 cites W2038465178 @default.
• W2969144628 cites W2039262196 @default.
• W2969144628 cites W2042936357 @default.
• W2969144628 cites W2043900045 @default.
• W2969144628 cites W2044035691 @default.
• W2969144628 cites W2044157761 @default.
• W2969144628 cites W2045027406 @default.
• W2969144628 cites W2045757517 @default.
• W2969144628 cites W2045760572 @default.
• W2969144628 cites W2048073131 @default.
• W2969144628 cites W2053756232 @default.

• next