1·These soils contain lots of organic matter.
这些土壤含有大量的有机物。
2·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。
3·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。
4·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。
5·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。
1·Soil communities are dependent on plants for organic matter.
土壤群落的有机质依赖于植物。
2·It's very low in organic matter. And also the soil here, um, is very high in salt, being so close to the sea.
你可以看一下这篇土地，含沙量非常高，有机质含量非常低，而且盐分很高，和海水的含盐量差不多。
3·In nature, a bubble's lifetime depends on the level of dissolved organic matter and nanoparticles, without which small bubbles rapidly shrink and disappear.
在自然界中，一个气泡的寿命依赖于其所含可溶性有机质和纳米粒子的量，没有这些物质，气泡将迅速地缩减并消失。
4·On average, the garbage consists of 60 percent organic matter, 12 percent plastic, 10 percent inorganic matter and 18 percent for everything else.
垃圾一般由60%的有机质，12%塑料，10%无机物和18%其他东西构成。
5·The soil moisture, organic matter and iron oxide have a considerable effect on the red soil spectrum.
土壤中水分、有机质和氧化铁的含量对其光谱特征有很大影响。