1·These soils contain lots of organic matter.
这些土壤含有大量的有机物。
2·Soil communities are dependent on plants for organic matter.
土壤群落的有机质依赖于植物。
3·As soon as the oxygen is gone, decay stops and the remaining organic matter is preserved.
当氧气消耗殆尽分解便停止，留下剩余的有机物。
4·The organic matter may partially decompose, using up the dissolved oxygen in the sediment.
有机物可能会进行部分分解，并耗尽沉积物中的溶解氧。
5·With a higher temperature and more moist conditions, the process of organic matter decomposition speeds up.
在较高的温度和较潮湿的条件下，有机物的分解过程会加快。
6·Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment.
石油由原油和天然气组成，它们似乎来源于海洋沉积物中的有机物质。
7·In other words, organic matter gets broken down and added into the soil more quickly in these gaps than in the surrounding forest.
换句话说，这些空地上的有机物分解并进入土壤的速度比周围森林中的更快。
8·The green iceberg did not contain large amounts of particles from these organisms, but the ice had accumulated dissolved organic matter from the seawater.
这些有机物的微粒在绿色冰山中含量不高，但是冰层中还是积聚了从海水中溶解的有机物。
9·A third sources, the warming-enhanced decay of organic matter in forests and soils, especially in the middle and higher latitudes, is now being recognized as potentially significant.
第三个来源，特别是在中纬度和高纬度地区，森林和土壤中因气候变暖而加剧的有机物腐烂，现在被认为具有潜在的重大意义。
10·Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor.
大多数雨林土壤都很贫瘠，因为它们缺乏矿物质，而且高温和强降雨会在到达森林地面后的4年内破坏土壤中的大部分有机物。