What's the difference between loam and loess?

Loam


Definition:

  • (n.) A kind of soil; an earthy mixture of clay and sand, with organic matter to which its fertility is chiefly due.
  • (n.) A mixture of sand, clay, and other materials, used in making molds for large castings, often without a pattern.
  • (v. i.) To cover, smear, or fill with loam.

Example Sentences:

  • (1) Two long-term tillage studies on fine-textured, clay loam soils were sampled in July and November 1977 following 2 years of limited rainfall.
  • (2) Adsorption and movement of carbofuran (a systemic nematicide) were studied using two Indian soils (clay loam and silt loam) of alluvial origin.
  • (3) Only a few Oncomelania snails and patients were observed in areas covered with red loam.
  • (4) Touch the soil, as Dughan did, and as his daughter did too at the sight of him, and it felt greasy, heavy, as if someone had poured cream onto loam.
  • (5) Auxotrophic recipient cells (thr- leu- thi- rpsL) were incubated in a sandy and a silty clay loam soil, and the transducing phage lysates from prototrophic strains carrying transposon 10(Tn10) in either purE or aroL regions were added.
  • (6) The two soil specimens are similar in that they differ from a typical clay loam in high content of carbon, hydrogen, and organic nitrogen and low levels of sodium, potassium, and titanium.
  • (7) on nodulation, growth, and grain yield was undertaken in red sandy loam of Bangalore, having a pH of 4.0.
  • (8) The rate of oxidation increased with the clay content of the soils from sandy loam to clay loam.
  • (9) To determine whether aflatoxin was bound to the silty clay loam soil, aflatoxin B1 was added to this soil and incubated for 20 days.
  • (10) Vertical soil microcosms flushed with groundwater were used to study the influence of water movement on survival and transport of a genetically engineered Pseudomonas fluorescens C5t strain through a loamy sand and a loam soil.
  • (11) An enzyme which catalyzed the hydrolysis of crotoxyphos ((E)-1-phenylethyl 3-[(dimethoxyphosphinyl)oxy]-2-butenoate) was isolated from nonsterile and radiation-sterilized Chehalis clay loam with 1.5M Tris (2-(hydroxymethyl)-2-nitro-1,3-propanediol) and partially purified with lead acetate treatment.
  • (12) Equilibrium adsorption coefficient (K) values measured using a batch-slurry technique follows the order clay loam greater than silt loam soil.
  • (13) Parathion mixed with 100-mesh sieved dust resulted in increasing "ppm" levels with decreasing particle size; extent of parathion conversion to paraoxon was independent of particle size for the sandy loam dust used.
  • (14) Aflatoxin decomposition proceeded most slowly in the silty clay loam soil.
  • (15) When applied to autoclayed Chehalis clay loam, purified enzyme lost 75% of its activity after one week and the remainder within two weeks.
  • (16) The enrichment procedures often lead to a falsely positive determination of the factors; Testing of ABO groups was most unfavourably influenced by loam, that of Gm by clay and chalk soils.
  • (17) Both methods utilized beef extract solutions to achieve desorption and recovery of viruses from representative soils: a fine sand soil, an organic muck soil, a sandy loam soil, and a clay loam soil.
  • (18) The experiments were confined to the effects of the addition of different sources of carbon (glucose, wheat straw, and sawdust) on the microbial activities in soils: loamy sand, loam and saline clay were used.
  • (19) The influence of composted peat on the effectiveness of different doses of mineral fertilizers was studied in model greenhouse experiments with barley of the Pirkka variety cultivated in sand and poorly cultivated sandy-loam soil.
  • (20) Leaching through silt clay loam (0-18 cm) columns from Ullensaker was very fast.

Loess


Definition:

  • (n.) A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers.

Example Sentences:

  • (1) Feeding experimental animals with fodder containing power plant ashes or loess dusts causes a change in the gastric juice reaction, thus resulting in a different assimilation of elements contained in the fodder.
  • (2) We compared the incidence of gastric dysplasia in three regions of China which have quite different geographical environments: the loess plateau of Wuwei area in the Gansu Province, the island of the Yangtze River in the Jiangsu Province of southern China, and the coastal area of the Liaoning Province in northern China.
  • (3) It was concluded that Hungarian rock-soil systems, especially the acid igneous rocks and the widely distributed young sediments (loess and sand formations) with most of the agricultural activity, are low in Se, and the mean serum Se level of the blood samples were also low.
  • (4) Loess Plateau watershed campaign The 2009 film, Lessons of the Loess Plateau, looked at the large-scale environmental restoration project undertaken by the Chinese government and the World Bank in the China’s northern region.
  • (5) The flora of the shell-limestone, keuper and loess areas contains much less Mn than that of those acid habitats.
  • (6) Calcium-cyanamide increased the CO2-production more in sandy than in loamy soil or German loess, which was also used for this experiment.
  • (7) These include thermophilic and mesophilic oak-forest communities on loess and communities of acid oak forests on gneiss.
  • (8) An analysis of the strontium isotopes in their tooth enamel showed these individuals had lived on food grown in " loess ", the most fertile and productive soil.
  • (9) Digramma is predominant in Carassius auratus auratus L. in reservoirs and lakes of 3 main water systems, Heilongjiang, Huang He (the Yellow River), and Chang Jiang (the Yangtze River), and in cultured cyprinids along the lower section of Huang He as well as in bodies of water on the Loess Plateau.

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