The SAPs have some form of influence on soil urease activity, which correlates with soil nitrogen transformation.
此外，保水剂对土壤脲酶活性有一定影响，其变化与氮素转化有关；
Nitrogen transformation and cycling in forest soils are of signification importance to the function of forest ecosystems.
森林土壤氮素转化与循环在森林生态系统功能中占有极其重要的意义。
Isotope dilution analysis is a valid approach for studying nitrogen transformation characteristics in soil-plant systems.
同位素稀释分析是研究氮素在土壤植物体系中转化和迁移特征的有效方法。
During the forced aeration composting with swine manure and bran, the characteristics of nitrogen transformation and NH3 emission are studied.
研究在猪粪、米糠强制通风堆肥过程中，堆体中氮素转化特点和NH3挥发规律。
The major nitrogen transformation pathways in constructed wetlands include nitrification and denitrification of microbe, plant uptake and adsorption by substrate.
人工湿地氮转化途径主要包括微生物的硝化反硝化作用、植物的吸收和湿地基质的吸附等。
In this paper, a 15n tracer pot experiment was installed to study the effect of incorporating corn stalk and stubble into black soil on the nitrogen transformation in soil-plant ecosystem.
采用盆栽试验和15n示踪技术对黑土添加玉米残体(秸秆和根茬)土壤植物系统中氮素转化进行了研究。
With the help of laboratory and thermodynamic simulation, the relation of nitrogen transformation with calcium and magnesium variation during wastewater infiltration in soil water system is studied.
结果表明：在连续入渗条件下，阳离子交换作用是控制地下水硬度升高的主要过程；
Zinc ion of different concentrations can inhibit the degradation of organic compounds and transformation of nitrogen.
不同浓度的锌离子对有机物的降解和氮的转化均有抑制。
The research was carried out to understand effect of application of rye straw on transformation of inorganic nitrogen in soil, and on N2O and CO2 emissions.
本研究通过培养试验探讨了添加黑麦秸秆对土壤中无机氮的形态转化和N_2O、CO_2释放的影响。
Research the law of transport and transformation of nitrogen.
研究氮的迁移及转化规律。
B ase on the study of lab experiment, the characteristics of nitrogen and phosphorus transport and transformation in soil was studied under sprinkler irrigation and flood irrigation.
本文以室内土柱实验研究为基础，研究了漫灌、喷灌入渗条件下，土壤氮类、磷类化合物迁移转化的特征。
The energy of the Sun arises not from any burning process but from nuclear fusion, the transformation of hydrogen into helium, in part by a complicated process involving carbon and nitrogen.
大阳的能量不是来自燃烧过程，而是来自由氢到氦的核聚变，是部分由一个涉及碳和氮的复杂过程引起的。
Urea, as a kind of nitrogen fertilizer, used widely for agriculture production, which transformation process in soil is significantly for nitrogen efficiency.
尿素作为农业生产中广泛应用的氮肥，研究其在土壤中的转化过程具有重要的意义。
The effect of different nitrogen fertilizers on dynamic transformation of phosphorus fertilizer in paddy soil under flooding condition was studied in indoor incubation experiments.
利用室内土培试验研究了淹水条件下不同氮肥对水稻土（黄泥土）中磷肥转化的动态影响。
The transformation mechanism of nitrogen in constructed wetland system and change of physiochemical parameters of wetland system were also analyzed.
本文同时分析了不同形态氮在湿地系统中的转化机制以及系统进出水理化参数的变化。
The nitrogen improves the transformation from simple protein to compound protein and the phosphorus is benefit to the synthesis of simple protein.
施磷促进简单蛋白质向复合蛋白质转化，氮肥有利简单蛋白质合成。
This paper reports the in-situ observation of the high-temperature phase transformation and nitrogen release of several types of HNS by a confocal laser scanning high-temperature microscope.
利用共聚焦激光扫描高温显微镜对几种高氮钢的高温相变以及重熔时氮的释放进行了在线观察。
The infiltration, transportation and transformation of a main contaminant (ammonia nitrogen) in the Taihu Lake sediment through a clayey soil layer are studied experimentally.
对太湖疏浚污染底泥中含有的一种主要污染物——氨氮在底泥堆场黏土防渗层中的渗透和运移规律进行了试验研究。
There was a significance difference in the denitrification process of microbial transformation of nitrogen between different temperatures and carbon substrates.
微生物在转化氮素时，不同基质以及在不同温度对脱氮过程的调控机制则存在显著的差异。
Intensive filtration can achieve the technology target of removing ammonia-nitrogen to some extent, and it is enforceable for the technology transformation of drinking water plant.
强化过滤可以在一定程度上实现生化去除氨氮的工艺目标，而且用于现有水厂工艺升级改造具有可实施性。
Intensive filtration can achieve the technology target of removing ammonia-nitrogen to some extent, and it is enforceable for the technology transformation of drinking water plant.
强化过滤可以在一定程度上实现生化去除氨氮的工艺目标，而且用于现有水厂工艺升级改造具有可实施性。
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