In this paper, the effects of enrofloxacin residues on soil ecological processes (soil respiration, soil cellulosic decomposition, soil ammonification , and soil nitrification) were studied.

1μg/ g土對(duì)土壤氨化作用有刺激作用免费真实处破视频在线观看，而較高濃度恩諾沙星殘留(1μg/ g土国产网站在线看福利午夜r，10μg/ g土)則會(huì)對(duì)其起抑制作用在线看天天影视男人av，藥物作用活性期為 9d99久久九九国产精品；不同濃度恩諾沙星對(duì)土壤硝化作用影響極其顯著，當(dāng)恩諾沙星濃度達(dá)到 1μg/ ml時(shí)，在 3～ 9d內(nèi)黄片在线免费看啊啊啊，對(duì)土壤硝化作用有一定抑制作用。

The cross-semivariogram was then analyzed to explore co-regionalized relationships between soil salinity at both depths, and the apparent soil electrical conductivity measured through electromagnetic induction EM38. CoKriging method was further employed to improve the accuracy of soil salinity estimates by treating soil bulk electrical conductivity as auxiliary variable and soil salinity, at both layers, as primary variable.

在對(duì)協(xié)同區(qū)域化變量進(jìn)行交互半方差分析的基礎(chǔ)上激情视频与图片，采用協(xié)同克立格法福利视频免费观看，以電磁感應(yīng)儀EM38測(cè)得的土壤表觀電導(dǎo)率作為協(xié)同變量，對(duì)各層次的土壤鹽分進(jìn)行估值欧美一级爱a免费观看。

Environment-friendly bast fiber film is buried in the ground floor of different soil pH value to study degradation and changes in the type and quantity of micro-organisms, to explore environment-friendly bast fiber film degradation relevance between micro-organisms and soil pH value. There are three types of soil, for example, weak acid soil, neutral soil, weak alkaline, in which film is buried. It is to determinate of weight loss and changes of quantity of micro-organisms around.

為了探明麻地膜降解性能與土壤pH和土壤微生物的相關(guān)性男女激情一区二区视频，利用生石灰調(diào)節(jié)土壤pH，將土壤pH調(diào)節(jié)為弱酸性成人免费黄色、中性欧美一级aa视频、弱堿性3個(gè)不同的水平，將麻地膜埋入3種不同的土壤中阿v免费在线播放，定期測(cè)定其失重率及其周圍土壤微生物種類和數(shù)量的變化制服丝袜自拍偷拍。

Soil total nitrogen content and soil available nitrogen content of farmland in Shuangcheng city were analyzed in the research based on 80s' soil nutriments data of the Scientific Database of Agroecology and Blackland in Northeast and 500 soil samples that were collected from the field in 0-20cm in 2005. The maps of soil TN and AN (1:50000) in the 80s were digitized and overlaid with the correspondent maps of 2005 using ArcMap.

本研究利用科學(xué)數(shù)據(jù)庫多年來積累的歷史圖件和數(shù)據(jù)，并結(jié)合2005年耕層（0-20cm）500個(gè)采樣數(shù)據(jù)為基礎(chǔ)超国产女人高潮A片免费视频，選擇典型黑土區(qū)雙城市農(nóng)田為研究區(qū)域800Av800在线800视频800，分析了22年來該縣耕地土壤全氮和堿解氮的時(shí)空變化。

But the result of improvement soil translated alkaline soil into alkalier soil. Not onlu it is unavoidable and subsisted of stabilization in commix tier of gypsum, but also it destroyed direct improvement process. It is imported find what solved seepage problem of gypsum in the study. In configured duality structure of improvement soil, it needs abundance seepage gypsum in commix tier into noncommix tier in order to losing seepage capacity reduce in all deepness of improvement soil.

堿土改良過程中石膏滲漏損失最高可達(dá)到石膏施入量的40%以上日韩黄色激情视频，而改良結(jié)果堿土只轉(zhuǎn)化為重堿化土av无码动漫精品；在石膏混合層內(nèi)，它是一種不可避免的午夜粉嫩粉嫩、穩(wěn)定存在的且直接破壞土壤改良進(jìn)程逆流国产在线观看入口；因此解決石膏滲漏問題亦是在本文研究工作中的重要發(fā)現(xiàn)：配置二元結(jié)構(gòu)改良?jí)A土中，正需要石膏混合層中大量石膏滲漏亚洲一区精品劲爆儿视频，以改良非石膏混合層一东京热AAAAA片AAA一，并使整個(gè)計(jì)劃改良深度內(nèi)的滲漏損失降為零。

Through the study on the soil microorganism, soil enzyme activity in spruce forest, chrysanthemum alp and couch grass in the subalpine forests in western Sichuan, the result shows that the relativity of the soil microbial quantity is very prominent in the soil. The relation with the quantity of the soil microorganism is microphyte 〉 actinomycete 〉 fungi.

：通過研究川西亞高山云杉林秋霞手机在线视频观看、繡線菊一茅草群落又粗又大又长的免费视频、高山柳群落和茅草群落等林地的土壤微生物數(shù)量和酶活性的變化，結(jié)果表明：云杉針葉林群落中的土壤微生物數(shù)量最多3级A片网站，繡線菊茅草灌叢群落次之亚洲视频中文字幕黄色，茅草群落最少。

By collecting ,testing, comparing, and analyzing the soil samples, soil recovery under the various recovery conditions along Mian CountyNingqiang highway was studied. The results were as follows herbaceous recovery to the soil fertility recovery in the prior was greater than the combination of grass and irrigation or than the pure bushes recovery. In each of them, the content of organic matter were 13.84, 7.50, 6.00 g·kg-1; In the recovery of herbaceous ecology, to grow leguminous plant and granminaceous plant together was better than pure graninaceous plant or pure leguminous plant. In each of them, the content of organic matter was 29.67, 17.51, 9.37 g·kg-1; to sow ryegrass and alfalfa together with some local grass seeds or to grow coxcomb, alfalfa and local couch grass together could bring better effects than to plant the alfalfa only. In each of them the increased organic matter contents were 4.93,17.51 and 9.37 g·kg-1;the quotas of the organic matter and alkaline hydrolysis nitrogen in soil fetility factor were closely connected, mainly because of the difference between the generation quantity and resolution quantity of the organic matter in the soil surface.

采集土壤樣品国产日韩草bav在线播放，經(jīng)室內(nèi)分析化驗(yàn)91在线国内极品在线播放，用對(duì)比分析的方法對(duì)勉縣至寧強(qiáng)高速公路生態(tài)恢復(fù)中不同恢復(fù)類型條件下的土壤恢復(fù)進(jìn)行了研究，結(jié)果表明草本恢復(fù)類型對(duì)前期土壤肥力的恢復(fù)作用大于草灌結(jié)合男女刺激床爽爽视频动态图，并大于單純灌木恢復(fù)類型强奸网站网址大全，其中有機(jī)質(zhì)含量分別為13.84、7.50和6.00 g·kg-1；在草本生態(tài)恢復(fù)類型中最新亚洲国产精品丝袜在线观看，豆科植物與禾本科植物混播恢復(fù)類型大于禾本科植物恢復(fù)類型的作用视频二区一区在线，并大于單純豆科植物恢復(fù)類型的作用，其中有機(jī)質(zhì)含量分別為29.67www午夜三片、17.51和9.37 g·kg-1国产激情高清视频；黑麥草與苜蓿混播并有當(dāng)?shù)夭莘N入侵以及小冠花與苜蘧镁霉诰罚混播并播入當(dāng)?shù)夭莘N羊茅欧美大片免费久久精品三p，明顯優(yōu)于純苜蓿單播，其中有機(jī)質(zhì)含量分別增加了4.93和3.32 g·kg-1黄视频在线品；土壤肥力因子中有機(jī)質(zhì)與堿解氮兩個(gè)指標(biāo)有較好的相關(guān)性亚洲日韩欧美精品，主要與土壤表層有機(jī)質(zhì)的生成量和分解量之差有關(guān)。

It is shown that the friction force and bulkhead thrust are the main factors of shield thrust setting, while the friction between the cutterhead and soil is the main factors of cutterhead torque setting. Friction force between shield and soil would make front soil of shield upheave, and subsidence of surface soil is induced by ground loss when the friction force between the cutterhead and soil results in the surface settlement asymmetrical distribution.

通過計(jì)算發(fā)現(xiàn)日韩中文无码手机下载网站大全，盾構(gòu)施工中盾殼摩擦和正面推力是盾構(gòu)推力設(shè)置的主要因素查找黄网站，而刀盤與土體摩擦是刀盤扭矩設(shè)置的主要因素，盾構(gòu)前方土體隆起主要由盾殼摩擦引起久久另类，刀盤摩擦作用主要引起地表沉降的非對(duì)稱分布最大黄色网站，地表沉降主要由盾尾空隙產(chǎn)生。

With the engineering data , the strut frame made of composed soil nails is analyzed with the program ababqus , and the effects of the distortion characters , the property of the deposition of the ground , the mechanical property of the soil nails , the variation of the length and the separation of the soil nails , and the diametric of the mixing piles on the strut frame made of composed soil nails , and the distortion property of the strut frame made of composed soil nails under different ground conditions

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Results showed that 1 soil structure in the rhizosphere was very high; water-holding capacity and organism count in the soil increased with altitude and duration of bamboo growth. However, soil etiolation and soil acidification was obvious. 2 Soil acidity was adjusted with lime; best applications were 10.625 thm^(-2) on the valley bottom, 14.811 thm^(-2) for the middle slope, and 12.558 thm^(-2) on the valley top.

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