查询词典 soil

In 0-100cm soil depth, the soil moisture in 50-100 cm depth under subsoiling were higher compared with no-tillage, which increased when it was dry and scarce in rain and decreased when it was rainy with soil depth increasing.

在0~100cm的土层剖面上，50~100cm土壤水分含量深松显著高于对照，干旱少雨时，土壤水分含量随土层深度增加而增加；降雨集中时，随土层深度增加而减少。

There were 75 soil series of covering different landforms,Parent material,soil types in Hubei Province are identified,which belong to 55 subgroups,36 great groups,17 suborders and 10 orders according to Chinese Soil Taxonomy.

以《中国土壤系统分类》以及《土壤基层分类试用方案》为准则，以特征土层为土系主要划分依据，建立了覆盖湖北省不同地貌、母质、土壤类型共75个土系，归属于《中国土壤系统分类》的55个亚类，36个土类，17个亚纲，10个土纲。

Moreover, the wind erosion rate had a negative correlation with crop stubbles coverage, soil surface moisture, terrain aerodynamic roughness, soil bulk density and soil compactness.

结果表明，风蚀量与土壤地表覆盖度、土壤0～5 cm表层含水量、地表粗糙度、土壤容重、土壤坚实度呈负相关关系，其中与前三者呈显著高度负相关关系。

Ninety seven spores or sporocarps of VAMF were wet sieved from the rhizosphere soil of mycorrhized pteridophytes, from which 25 VAMF species which belonged to the genera of Acaulospora, Gigaspora, Glomus, Sclerocystis and Scutellospora respectively were identified, and the taxonomic characters of the 25 species were described. The Glomus fungi were the dominant VAMF in the rhizosphere soil of pteridophytes, they took up 44% in the identified 25 VAMF (11 species belong to Glomus); the fungi in Acaulospora and Sclerocystis in the next place, they took up 24% and 16% respectively in the identified VAMF; the fungi in the other genera took up 16%. In terms of the relationships of pteridophytes and the VAMF isolated from their rhizosphere soil, there was no specifity between the VAMF and their host.

从具有VA菌根的蕨类植物对应的根际土壤中用湿筛法筛取了97份VA菌根真菌的孢子或孢子果，从中鉴定出了分属于无醒囊霉属、巨孢囊霉属、球囊霉属、硬囊霉属和盾孢囊霉属的VA菌根真菌25种，并对这25种真菌的分类学特征进行了描述；球囊霉属真菌是蕨类植物根际土壤中的优势类群，已鉴定的25种真菌中，有11种属球囊霉属真菌，占44%，其次是无梗囊霉属和硬囊霉属真菌，分别占24%和16%，其他属的VA菌根真菌占16%，从分离鉴定的蕨类植物根际土壤中的VA菌根真菌与蕨类植物的关系看，VA菌根真菌与蕨类植物之间无明显的专一性。

The purpose of the research was to obtain bacterial polyhydroxyalkanoic acids producers with good characters. With bottom sludge from Donghu Lake, bum soil from hillside, fertile vegetable soil and oil-soaked soil as initial samples, the bacterial strains with ability of synthesizing PHAs were screened not through enriching, isolation and purification, staining with Sudan black B and qualitative and quantitative analyses by infrared spectroscopy and gas chromatography. The results of staining with Sudan black B showed that there were 3 strains with ability of synthesizing PHAs among the 12 isolated strains and their numbers were Zj-5, Zj-8 and Zj-9 resp. All the 3 strains took on adsorption peaks at the points near 1741 cm^(-1) and the infrared spectrums of the strains Zj-8 and Zj-9 were similar.

［目的］获取性状优良的聚羟基烷酸合成菌［方法］以东湖底混、山坡裸地土、肥沃菜园土和油脂浸润土为初始样品，经富集、分离纯化、苏丹黑B染色、红外光谱及气相色谱定性定量分析筛选出具PHAs合成能力的细菌菌株［结果］苏丹黑B染色结果表明，在分离出的12株细菌中有3株细菌具有PHAs合成能力，其编号分别是Zj-5、Zj-8和Zj-9.3株细菌均在174cm^(-1)附近呈现吸收峰，菌株Zj-8和Zj-9的红外谱图相似。

Method］ With bottom sludge from Donghu Lake, bare soil from hillside, fertile vegetable soil and oil-soaked soil as initial samples, the bacterial strains with ability of synthesizing PHAs were screened out through enriching, isolation and purification, staining with Sudan black B and qualitative and quantitative analyses by infrared spectroscopy and gas chromatography.

方法］以东湖底泥、山坡裸地土、肥沃菜园土和油脂浸润土为初始样品，经富集、分离纯化、苏丹黑B染色、红外光谱及气相色谱定性定量分析筛选出具PHAs合成能力的细菌菌株。

The nonionic surfactants in soil not only have no toxicity to microorganisms, but also enhance the growth of soil microorganisms, the bioavailability and biodegradation of hydrophobic pollutants sorbed in soil.

非离子表面活性剂进入土壤后，对微生物不但没有毒性，而且还促进微生物的生长，并有利于吸附态污染物的解吸，增加了其生物可利用性，加快了微生物的降解作用。

Surfactant sorbed on soil increases the adsorption capacity of the soil; however, the microemulsion composed of surfactant and organic materials decreases the adsorption capacity of the soil.

增加离子强度对非离子表面活性剂的吸附无影响，却可略微增加阴离子表面活性剂的吸附。表面活性剂吸附于土壤后对憎水性污染物在土壤/水间的分配行为产生显著作用。

In terms of physical and chemical properties, the fertilization of fruit orchard soil in Hongyan village is higher than that of any other region in Guangxi and the soil pH value is gradually developing towards that in the maturity soil.

生态农业旅游活动的开展与土壤环境有一定的关系，本文以广西恭城红岩村生态旅游景观区为例，分析了旅游对土壤物理性质、化学性质的影响。

In this paper, necessity of water saving agriculture in Loess plateau wasanalysized, and main types of regulating soil water techniques were sumed up as below, the aimof regulating soil water could be got by use of building up fertilizer, crop rotation, intermitentfallowing soil, drought resistant breeding, water savins run-off agriculture and chemical method.

通过对黄土高原节水农业必要性的分析，并总结出调水技术的主要类型为：培肥地力以肥调水；轮作倒茬调水；间隙休闲调水；抗旱育种调水；节水灌溉调水；径流农业调水和化学技术调水。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。