نتایج جستجو برای: coarse textured soil

تعداد نتایج: 215238  

2012
Karis J. McFarlane Margaret S. Torn Paul J. Hanson Rachel C. Porras Christopher W. Swanston Thomas P. Guilderson

Forest soils represent a significant pool for carbon sequestration and storage, but the factors controlling soil carbon cycling are not well constrained. We compared soil carbon dynamics at five broadleaf forests in the Eastern US that vary in climate, soil type, and soil ecology: two sites at the University of Michigan Biological Station (MI-Coarse, sandy; MI-Fine, loamy); Bartlett Experimenta...

Journal: :Land 2022

Shallow landslides due to the soil saturation induced by intense rainfall events are very common in northern Italy, particularly Alps and Prealps. They usually triggered during heavy rainstorms, causing severe damage property, sometimes casualties. A historical study analysis of shallow mud-debris flows Lombardy was carried out for period 1911–2010, over an area 14,019 km2. In this study, inten...

Journal: :Soil Science Society of America Journal 2022

Abstract Coarse‐textured soils are typically not highly aggregated due to low surface reactivity of sand‐sized grains. However, soil erosion and sealing can still be a concern from frequently tilled in relatively flat landscapes the Coastal Plain Flatwoods southeastern United States. Soil at 0‐to‐10‐cm depth was sampled 120 randomly chosen cotton ( Gossypium hirsutum L.) fields North Carolina, ...

2014
Fan Ding Yao Huang Wenjuan Sun Guangfu Jiang Yue Chen

It is widely recognized that global warming promotes soil organic carbon (SOC) decomposition, and soils thus emit more CO2 into the atmosphere because of the warming; however, the response of SOC decomposition to this warming in different soil textures is unclear. This lack of knowledge limits our projection of SOC turnover and CO2 emission from soils after future warming. To investigate the CO...

ژورنال: علوم آب و خاک 2009
بهرامی, حسینعلی , صادقی, سیدحمیدرضا, مهدیان, محمدحسین, واعظی, علیرضا,

Proper evaluation of soil erodibility factor is very important in assessment of soil erosion. In this study, soil erodibility factor (K) was assessed in a zone, 900 km2 in area in Hashtrood, located in a semi-arid region in north west of Iran. Soil erodibility factor was measured at the unit plots under natural rainfall events in 36 different lands in the study area from March 2005 to March 200...

Journal: :Journal of nematology 1975
H Ferris M V McKenry

Yield, growth, and vigor of individual grape vines were correlated with nematode population densities in a series of California vineyards. In a Hanford sandy loam soil, Xiphinema americanum densities showed negative correlations with yield, growth, and vigor of vines. When vines were categorized according to vigor, X. americanurn densities had little relationship to yield of high-vigor vines, b...

Journal: :Journal of environmental quality 2011
Maninder K Chahal Gurpal S Toor Peter Nkedi-Kizza Bielinski M Santos

Land application of wastewater is a common practice. However, coarse-textured soils and shallow groundwater in Florida present favorable conditions for leaching of wastewater-applied constituents. Our objective in this study was to determine phosphorus (P) and associated cations (Ca, Mg, K, Na) leaching in a Spodosol irrigated with tomato packinghouse wastewater. We packed 12 polyvinyl chloride...

Journal: :Water Resources Research 2022

In his seminal paper on the solution of infiltration equation, Philip (1969), https://doi.org/10.1016/b978-1-4831-9936-8.50010-6 proposed a gravity time, tgrav, to estimate practical convergence time and domain validity infinite series expansion, TSE, for describing transient state. The parameter tgrav refers point in where is dominated equally by capillarity as derived from first two (dominant...

2013
Jong-Shik Kim David E. Crowley

The microbial community structure in various microaggregates in a loamy sand soil was investigated. The microaggregates were separated into outer and inner aggregates using a series of soil washes. Further physical fractionation of inner aggregates was achieved by separation into coarse and fine sand as macroaggregate fractions, coarse and fine silt as microaggregate fractions, and clay. Resear...

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