土壤微生物

Soil microorganism and soil enzyme activity is one of the most important indexes influencing the soil fertility.

土壤微生物和土壤酶活性是反映土壤肥力最为重要的生物学指标之一。

In a word, according to the research of pulp wastewater treatment using pond-reed system, we discovered that the complex system can removal wastewater pollutants effectively, at the same time, the salinity of soil is dramatic decreased through wastewater washing, which bring many active results: increasing of N, P, and organic matter; enhancing of soil microbes, enzymes, MBC/TOC, and soil respire rate; increasing of reed height and yield, decreasing of weed diversity; affecting of transporting ability of Ca, Mg, K, Zn, and Mn , and improving of water shortage, salinity resistance and rhizosphere metabolized secretion conditions, all those improved the weak ecosystem.

总之，经过对生物塘-芦苇湿地系统处理造纸废水的研究，发现系统能有效去除废水中有机物，同时废水灌溉还极大的降低了土壤盐分，产生了一系列积极效应：系统内氮、磷、有机质增加；土壤微生物和酶活性增强；MBC/TOC及土壤呼吸强度提高；芦苇株高和产量增加，而杂草的多样性减少；同时也会影响系统内钙、镁、钾、锌、锰等离子迁移，改变系统受盐碱和缺水胁迫的现状和根际代谢状况，极大地改善了滨海盐碱生态系统现状。

Relativity of soil respiration and CaCO3 was marked; the changes of CaCO3 content controlled the changes of soil respiration in temporal and spatial in scrubland.

掌握土壤因子及土壤呼吸的空间变化，对了解荒漠生态系统过程、土壤微生物与有机质的相互作用及全球气候变化的研究都具有重要的意义。

Ecotoxicology of sulfamethazine on soil microbial activity and its degradation and transfer in the soil were investigated.

通过室内培养和土壤薄层层析等实验方法，研究了磺胺二甲嘧啶对土壤微生物的毒性及其在土壤中的降解、迁移特性。

Under the different sowing seeds way the soil ulmin, the alkaline hydrolysis nitrogen, the fast-acting phosphorus content present the tendency which in 0-40cm various soil layers increases along with the soil layer depth reduces, take 0-10cm soil layer soil content as biggest; The change tendency which the colleague mixes broadcasts mixes with the interlacing broadcasts the change tendency which the lawn fast-acting potassium presents reduces, after the unicast awnless brome lawn presents falls first, increases again falls, take 0-10cm and 20-30cm soil layer soil content as biggest, is 80, and achieves the extremely remarkable difference with other soil layers between; pH presents increases the tendency.

混播草地上牧草根系死亡后，能在土壤中遗留大量的有机质，在土壤微生物的作用下形成土壤腐殖质，其中有丰富的氮、磷、钾等元素。无芒雀麦，又名禾萱草，无芒草，是世界上分布较广，应用较多的优良牧草；是草地补播和建立人工草地的理想草种。无芒雀麦生长快，竞争力强，在杂草较多的草荒地上种植，也能获得成功，为我国温带和寒温带建造人工草地的当家草种。

Inoculating the three protozoa reduced soil microbial biomass C. But corn straw decomposition was not decreased, even increased when inoculating Colpoda cucullus. The protozoa, in particular, Colpoda cucullus also had some effects on N and P transformation.

向土壤接种原生动物，虽然减少了土壤微生物生物量，但却促进了玉米秸秆分解，还对土壤有效磷含量、氮素转化产生显著的影响，其中Colpoda cucullus效果最明显。

There was a significant correlation between soil easily mineralizable nitrogen and microbial biomass nitrogen measured before planting with the net nitrogen mineralization and plant nitrogen uptake.

通过盆栽试验研究了土壤易矿化有机态氮和土壤微生物态氮与土壤净矿化氮及植物吸氮量之间的关系。

In summary, MNL and TNL could be used as indices for potential mineralizable N, which are not only suitable for the first season crop but also suitable in evaluating soil N-supplying capacity for two successive season crops; while SON, total soil N and soil microbe N were not good indices for soil potential mineralizable N in short-term.

总体上看，可溶性有机氮和土壤全氮、土壤微生物氮不能作为反映短期可矿化氮的指标；间隙淋洗通气培养淋洗液中淋洗矿质氮、淋洗总氮是评价可矿化氮的较好指标，不仅适宜于第一季作物，而且也适用于对连续两季作物土壤供氮能力的评价。

Shanghai Impregnant Factory located in the Park of World Expo 2010 Shanghai was set up 70 years ago and abandoned for 10 years. The quantities of soil microorganisms, soil enzyme activities, soil chemical properties and their relationships under Cinnamomum camphora community, Metasequoia lyptostroboides community, Nerium indicum community and Cinnamomum camphora+Ligustrum lucidum shrub community in the factory were studied. Results showed that the differences in soil properties were significant in upper soil layer (0~20 cm) and the vertical distribution rules of soil properties were different under four plant communities.

对2010年上海世界博览会规划园区内，已废弃的上海市溶剂厂的绿地低干扰下的香樟群落、水杉群落、夹竹桃群落、香樟和女贞灌丛群落的土壤微生物数量、土壤酶活性及土壤化学性质等特性及其关系进行分析。

The low level of soil water repellency is reportedly related to soil moisture regime and soil microbial community as well as dissolved organic carbon.

另有研究表明土壤弱疏水性的形成与土壤微生物群落和土壤可溶性有机碳性质相关。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。