| 词汇 | sphagnum |
| 释义 | sphagnum noun[ C or U ] uk /ˈsfæɡ.nəm/ us /ˈsfæɡ.nəm/pluralsphagnauk /ˈsfæɡ.nə/ us /ˈsfæɡ.nə/(alsosphagnum moss) any of several different mosses(= very small green plants) that grow on wet ground and hold a lot of water. When they decay they form peat (= a dark brown substance like soil): Certain species of sphagnum may become abundant in acid water. Sphagnum moss is valued by gardeners for its ability to hold an immense amount of water. Synonym peat moss Their typical habitat is sphagnum bogs or slow-moving meadow streams. There are extensive patches of sphagna at the top of the site. Little grows here except for these low bushes and bogs of sphagnum mosses. Water & marsh plants, bushes & trees algae algae bloom Andromeda bacopa bladderwort flag iris green alga gulfweed haidai kelp peppergrass phytoplankton pickerel weed plankton pond life sargassum sea lettuce seagrass seaweed sedge Examples of sphagnumsphagnum These treated seeds were then mixed with moist sphagnum for germination testing. Sphagnum peat is irradiated prior to packaging, hence many biological agents would be rendered sterile. Females deposit eggs in sphagnum moss, or other suitable damp material at the base of plants, and larvae also descend into the moss layer to pupate. Sphagnum moss has been used globally as an indicator of climate change. Sphagnum served as the germination medium. Sphagnum either disappeared completely or showed major areal contraction at both coastal and plateau locations and at both small and large moss patches, with no trends evident. There should also be the re-introduction of sphagnum moss, which is so vital to the survival of the peat. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Even on areas which have been worked, these are now returning to a sphagnum lawn—even near drained farmland. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Muskeg consists of dead plants in various states of decomposition (as peat), ranging from fairly intact sphagnum moss, to sedge peat, to highly decomposed humus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Marshes, which have a covering of sphagnum, account for about 80% of all the wetlands. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In addition to its botanical use as a term meaning flower head it is also used to mean the top of the sphagnum plant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Trees can be very dense or sparse; mats of sphagnum moss cover the ground. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The best success comes from a well-aerated, wet medium consisting partly or entirely of sphagnum; flowing water is advisable. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is never very common but may be frequently overlooked because of its small size and a tendency to grow underneath heather on sphagnum moss. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In flooded areas, red maple and alder, which can tolerate the water, are dominant along with leatherleaf and sphagnum. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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