对土壤生物有毒。
土壤生物化学性质是重要的监测土壤变化的参数。
Soil biological and biochemical variables are considered to be essential to measure changes in soil quality.
应用氯仿熏蒸培养法测定不同肥力水平的土壤生物量-C和-N。
The chloroform fumigation-incubation method was used to measure the biomass-C and-N of soils with different fertility levels.
土壤生物可以作为化学物质对土壤环境危害的有价值的指示生物。
Soil organisms can provide valuable indicators for the risks of chemicals in soil environment.
试验研究了果—草人工生态系统中土壤生物因子与土壤养分的关系。
A experiment was done to study the relation between biological factors and nutrients in soil in an artificial fruit-grass ecosystem.
土壤碳的这种分布格局与大气降水的淋溶、土壤生物活动等因素有关。
This distribution pattern of soil carbon was related to such factors as the precipitation eluviation and the organism activities in soils.
在恢复初期，地衣和苔藓对土壤生物学性质的改善主要体现在土壤表层。
At the initial stages of restoration, improvement on the soil biological properties by lichen and moss were represented mainly on surface layer soil.
接种线虫对土壤有效p的提高不明显，而对土壤生物量P有显著的增加。
Soil available P was not affected by nematodes, while soil microbial biomass P increased obviously with the inoculation of nematodes.
但土壤生物学也在有机物损失损失中遭到破坏，这可能需要五到十年才能恢复。
But the biology of the soil is also being damaged by the loss of organic matter, which can take five to ten years to recover.
土壤生物和酶活性在改善土壤结构、养分循环、有机质分解和保持中起重要作用。
Soil organisms as well as enzyme activities perform important functions in soil, including structure improvement, nutrient cycling, and organic matter decomposition and retention.
在杨凌中等肥力红油土上进行大田试验 ，研究土壤生物体氮的变化及影响因子。
The factors affecting soil microbial biomass nitrogen and the relationship between soil microbial biomass nitrogen and mineralizable nitrogen are reviewed.
也就是说随着造林时间的延长，林地土壤微生物总量和土壤生物肥力有提高的趋势。
This suggested that the soil microbe number and bio-fertility were increased with the increase of plantation time.
结果表明，长期施用有机肥或化肥均能增加土壤生物量氮数量，尤以有机肥的作用明显。
Results showed that long term application of NPK fertilizers or manure could increase soil biomass-N, especially the effect of manure on biomass-N was obvious.
图4土壤生物因素(对照和灭活)及施肥因素(化肥和有机肥)对褐飞虱生物量的影响。
Fig. 4 Effects of soil biological factor (non-sterilized vs. sterilized) and fertilization management (chemical vs. organic fertilizer) on planthopper mass.
不同肥料用量对土壤生物学过程的影响研究是肥域(际)土壤生态学研究的重要内容之一。
Effect of different amounts of fertilizer on soil biological process is one of the important issues in soil ecology.
油污土壤生物修复剂应包括石油降解优势菌剂、生物营养素、生物表面活性剂和土壤活化剂。
Bioremediation reagent was suggested to include efficient oil-degrading microorganisms, microbial nutriments, biosurfactant and soil activating reagents.
结果表明，冬春茬黄瓜收获后采用不同的种植模式，其系统生产力与土壤生物特性发生明显变化。
The results shown that after cucumber harvest, there was significant difference in different cropping model on soil bio-characteristics and system productivity.
通过对土壤呼吸强度和土壤酶活性的测定，研究了新型杀虫剂啶虫脒对旱地土壤生物活性的影响。
Effect of a new pesticide, acetamiprid, on biological activity in upland soil was studied through analysis of soil enzyme activities and soil respiration.
生物群落是指“类似于气候条件的气候和地理的生态环境，象植物，动物和土壤生物的共同体”。
A biome is "climatically and geographically defined areas of ecologically similar climatic conditions such as communities of plants, animals, and soil organisms."
凋落物分解是生态系统物质循环和能量流动的重要环节，而土壤生物是凋落物分解的主要完成者。
Litter decomposition is a key process of nutrient cycle and energy flow in ecosystems, while soil microorganism and soil fauna are the main executants of litter decomposition.
作者们说，草甘膦除草剂的毒性有益于土壤生物进一步减少对植物对抗病害所需的养分的可获得性。
The authors said that glyphosate's toxicity to beneficial soil organisms further reduces the availability of nutrients that are critical for a plant's defense against disease.
概述了土壤石油污染的危害及其现状，介绍了主要的石油污染土壤生物修复技术的原理及研究进展。
The danger and current situation of the soil polluted by oil were summed up and main biological principle of oil-polluted soil and the research progress in recovery technique were introduced.
本文通过阐述重金属污染对土壤生物及土壤酶活性的影响，揭示了重金属污染对土壤生态系统的危害。
This article expounds the effects of pollution of heavy metals on soil organisms and soil enzyme activities, discovers the harm of pollution of heavy metals on soil ecosystem.
目的研究微生物-植物联合对稠油污染土壤的修复效果，为石油污染土壤生物修复技术的应用提供依据。
The paper intends to investigate the combined effects of microorganism and plant on the remediation of soil polluted by thick oil, and to provide practical methods for the remediation.
陆地生态系统凋落物分解是全球碳收支的一个重要组成部分，主要受气候、凋落物质量和土壤生物群落的综合控制。
Litter decomposition in terrestrial ecosystems, an important process in the global carbon budget, is mainly controlled by climate, litter quality and soil organisms.
农业生物学；土壤生物学关于植物养分和与土壤条件相关的生长的研究，尤其是对判定如何增加农作物产量方法的研究。
The study of plant nutrition and growth as related to soil condition, especially to determine ways to increase crop yield .
农业生物学；土壤生物学关于植物养分和与土壤条件相关的生长的研究，尤其是对判定如何增加农作物产量方法的研究。
The study of plant nutrition and growth as related to soil condition, especially to determine ways to increase crop yield .
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