They are found in soil, decaying plant debris, fruit rot, house dust, wallpaper, among others, and are disseminated by dry spores and carried typically by wind or insects.

它们存在于土壤，腐殖植物碎片、水果、屋尘、墙纸等，并且散发干孢子，并由风或昆虫进行传播。

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Light fraction organic matter is largely composed of plant residues at various stages of decomposition and a lot of microbial debris. Soil fertility varies with its changes as indicators.

轻组有机质主要是由不同分解程度的植物残体和一些微生物结构体组成，它的改变可以用来指示土壤肥力的变化。

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The effectiveness of the method of clearing the floating debris in front of power plant or draining them into the downstream all are not so good.

而已往在电厂前沿清漂或将漂污物排向下游的方法效果不甚理想。

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This plant turns debris from buildings - many destroyed by Israeli air strikes - into sand and gravel that is then turned into cinder blocks for building.

VOA: standard.2010.06.16

The company stockpiles the topsoil which contains the nutrients, organic debris and plant seeds that are stripped away during mining.

CNN: South Africa dune mining whips up sandstorm

In New Zealand Scion Research works to convert the waste stream from pulp and paper processing into a blend of microbial cell wall debris and plastic called polyhydroxyalkanoate, or PHA. Plant a PHA flower pot into the ground and and it biodegrades.

FORBES: Revving Up Nature's Engines

Texas inspectors also found that the air handling system was pulling debris from the infested crawl space into production areas at the Plainview plant, which processes peanut meal, granulated peanuts and roasted peanuts.

MSN: Texas recalls all products linked to peanut plant