外源有机物

土壤不同层次水稳性团聚体中POC的来源不同，在0~5cm表层可能主要来源于作物根茬生物量，而在5~15cm土层则可能跟施入的外源有机物有关。

Regression coefficients showed a possible source of POC in water-stable aggregates from increased crop biomass in topsoil ( 0-5cm ) and organic matter applied in sub-surface layer ( 5-15cm ) .

首先是对模型中外源有机物影响因子子模型的修正。

At first , the sub-model of external organic matter impact factor was modified .

土壤有机质和外源有机物对甲烷产生的影响

Effects of Soil Organic Matter and Exogenous Organic Materials on Methane Production in and Emission from Wetlands

2002年10月~2004年6月期间，湿地表现出较好的拦截沟渠来水中有机物的能力，有效地降低了滇池的外源有机物污染负荷。

WCW showed better capability for COD removal from agricultural runoff between October 2002 and June 2004.Thus WCW effectively cut the external COD load of Dianchi Lake .

1994~2001年，自然保护区建立以后，外源有机物输入减少，营养化程度降低；

In 1994-2001 , the natural protective region was established in this area , and the input of organic matters decreased , and the nutrition level turned low ;

MBR在处理外源性有机物与氨氮废水中硝化污泥的驯化特性研究

The Acclimation Behavior of Nitrifying Activated Sludge Treated with Wastewater Containing Xenobiotic Organics and Ammonium Nitrogen by Membrane Bioreactors

结果表明，接种外源菌种能加速有机物的降解，使有机碳含量下降，这一浓缩效应提高了有机肥中全磷、有机磷、无机磷的含量；

The results showed that the inoculants accelerated the decomposition of organic carbon , and increased the concentration of total P , inorganic P , and organic P in the final composting product .