土层
- 与 土层 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The highest value of colonization intensity is in Minhe, the highest arbuscule abundance, vesicular abundance and Hypha abundance is Haibei, the highest spore density is in Huangzhong, and the maximum value of spore density existed in the depth of 0~10 cm of soil, and the value decreased gradually along with the increasing of soil depth in 0~30 cm sections.
侵染强度最高在民和,丛枝丰度、泡囊丰度和菌丝丰度在海北最高,地孢子密度最大值在湟中,且最大值均发生在0~10 cm土层,0~30 cm土层随土壤深度增加呈下降趋势。
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The results show that these gravel silty clays distributed at the range between the rock slope with an altitude lower than 190m and the rock platform with an altitude about 140-150m are formed from sliding; and that those gravel silty clays distributed above 190m of the rock surface are residual, colluvial and talus deposits; and that the gravel sand layer located along Zhuxi River is a kind of alluvial deposit.
研究结果表明:分布在基岩面高程190m以下的斜坡与基岩面高程140~150m平台上的粉质黏土夹碎石土层是由滑坡作用形成的;分布在基岩面高程190m以上的粉质黏土夹碎石土层是由崩积、残积及坡积作用形成的;卵石砂土层是苎溪河的冲积作用形成的。
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Result show that in the early phase of Caragana korshinskii and Elymus dahuricus, there is three distinct layer in 0~500cm: As it grow and root stretch deeper, more and soil water is needed, in the forth year dry layer appear between 120~220cm, depth 100cm.
结果表明,在水平阶营造柠条和披碱草,在生长初期0~500cm土层含水量可分为3个明显的层次;在生长的第4年随著灌草根系深扎,土壤水分过耗,出现明显的乾土层,分布深度在120~200cm,厚度为100cm。
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And it is verified that the simulation methods in this paper are rational and the model is feasible.(2)Using the unconditionally stable implicit Newmark time intergration algorithm, the effects of some key factors such as buried depth, condition of soil layers and the earthquake excitative orientation are studied.The results show that dynamic response of structure is considerably affected by the thickness of overburden layer, and horizontal slice is more dangerous than upright slice.
2采用无条件稳定的Newmark隐式积分法进行地震响应分析,讨论各种因素对地下结构动力响应的影响,如:结构埋深、土层分布条件和地震激励方向等,并通过对结构的应力、位移、加速度等结果的分析,发现上覆土层厚度对结构动力响应比较大,水平分层比竖向分层更容易使地下结构遭受破坏。
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And the improving effect of leguminous was better than gramineous planting grass while soil layer deep down.
在生草区0~40cm土层,果树与牧草养分需求重叠,导致生草区土壤库全氮、全磷、全钾含量下降,但该土层水解氮、速效磷、速效钾的含量增加。
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Sum up under the same condition, NT has more advantages than CT onthose indexes of hydrolyzable nitrogen ,available phosphorus and potassiumin 0-20cm soil layer while there are no evidently difference underneath 20cmsoil layer.2.2 In NT fertilization zone and mantle zone, contents of organic matter in0-40cm soil layer are higher than that in CT.
和常规处理相比,免耕施肥区处理 N3T和覆盖区处理 N3TC 在 0-20cm 土层显著提高了有机质含量,其中覆盖区增加效果显著。2.3 和常规耕翻处理相比,成熟后免耕处理在 0-20cm 土层土壤显著降低了土壤容重和增加了毛管孔隙度和非毛管孔隙度,显著提高了土壤总孔隙度。3 免耕对土壤中不同形态氮素以及土壤水分含量变化的影响3.1 土壤铵态氮拔节期至成熟期是免耕处理和常规处理铵态氮显著差异的形成时期。
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Research on the carryover law of thermal energy in the inner of drills, crust and isotrope stratum, the theory of thermal delivery among subterrene drills, hot melts and stratum.
研究热能在热熔器内部、壳体、均质土层中的传递规律;研究热熔器、热熔体与土层间的热交换;2。
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In 0~20 cm soil layer, there is a considerable effect of herb plant root system on soil anti-shearing strength. Soil anti-shearing intensity (15.33 kPa) by Medicagosativais highest. Particularly in the 20~40 cm soil layer, Melilotus officinalisand M. sativacan drastically enhance soil anti-shearing strength.
试验表明,在0~20 cm土层4种草本植物根系均可显著增加土壤抗剪切强度,其中紫花苜蓿根系对土壤抗剪切强度的增强作用最大,其增大土壤抗剪切强度值为15.33 kPa;草木樨和紫花苜蓿根系在20~40 cm土层也能明显增大土壤抗剪切强度。
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The results show that the2 0~ 40 cm and40~ 60 cm layers for the red loessial soil and2 0~ 40 cm layer for the red loessial soil had a large amount of easily mineralizable nitrogen besides the0~ 2 0 cm layer, but the easily mineralizable nitrogen was little...
总体上看,红油土中氮素的矿化和硝化作用强于红垆土。铵态氮肥在粘粒含量少、有机质含量高土层中的迅速减少主要归咎于硝化,而在粘粒含量多、有机质含量少的土层,主要取决于矿物固定
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With vertical-section analysis, in the later of experiment, naked terra and wheat land make content of soluble salt high in 0~20cm,and decreasing with deepening of soil-layer; the content value of planting two-year-old Onobrychis viciaefolia 、one-year-old Onobrychis viciaefolia 、interplanting and sequential cropping in the every soil-layer is equal; in harvest, only planting wheat and interplanting display content of soluble salt is high in middle-layer (20~60cm) and low in surface and down layers(0~20cm,60~80cm).
土壤垂直剖面分析,试验末期裸地的土壤盐分表现为0~20cm 土层高,随土层深入含量逐渐降低;二年生红豆草、一年生红豆草、套种和复种处理的土壤盐分均表现出各层含量近似相等的特征;小麦收获期,单作小麦和小麦套种地各土层的可溶性盐含量均表现为中层(20~60cm)高、上下层(0~20cm 和60~80cm)低的特征。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。