The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

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It is concluded that, first, geochemical data of the surface soils can clearly distinguish two kind of soils, that is, juvenile soils, for example, purple soils, which inherits most geochemical characteristics of the parent rocks or materials, and anthropic soils, the geochemical characteristics of which have been greatly changed as the results of intensive impact from variety of agricultural uses. Second, different soils have typical indicator elements association respectively due to different parent rocks or materials and utilization, such as purple soils, yellow soils (low alkali and alkaline-earth metal contents and pH value), paddy soils (high organic element and heavy metal elements contents) and fluvo-aquic soils (high rock-forming accessory mineral elements contents) and so on. Consequently, it can be suggested that elements association is an important indicator for two key factors (parent materials and anthropic activities) of soil classification. Third, some differences exist between soil genesic classification and result of cluster analysis, because geochemical characteristics of surface soils can not completely represent the foundation applying to soil genesic classification, that is, condition and process of soil-forming, and soil property.

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He wishes that through the four weeks residency program, he could play a part in local community activities and explore local culture deeply. Yeo wishes that by searching the "unknown" cultural elements of his knowledge and exploring local daily "functional objects", his artistic vision could offer an alternative proposition/experience profoundly.

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Three 30 m×30 m sample fields were designed to investigate different vegetation type, and the species and the number of arbor in the sample field were noted. Meanwhile, four 2 m×2 m plots were designed in the catercorner of sample field to investigate the species and the number of shrub and herbage.

方法］對(duì)不同植被類型設(shè)置3個(gè)30 m×30 m的樣地進(jìn)行調(diào)查，記錄樣地內(nèi)所有喬木樹種的種類性av一级一片免费播放、數(shù)量26uuu在线播放，并記錄奇胸徑和株高；同時(shí)天天搞天天舔，在樣地對(duì)角線設(shè)4個(gè)2 m×2 m的樣方調(diào)查所有灌木和草本的種類和數(shù)量欧美人人操操。

Meanwhile, the effect of organic amendments on cucumber growth were tested in the pots and plots. The results showed that four of the twelve organic amendments significantly promoted cucumber growth, namely wheat chaff, chinaberry leaf, pine sawdust and rapeseed cake. Among the four kinds of organic amendments, wheat chaff has the most significant effect.

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To study the effect of nematode-induced forest succession on avian communities, we chose three forest types at different seral stages, including evergreen broad-leaved coppice infested by the pine wood nematode for five years and evergreen broad-leaved forest infested for 12 years, both from Xiangshan County, Zhejiang, and one 40-year-old evergreen broad-leaved forest from Tiantong National Forest Park, Zhejiang.

為了探討在松材線蟲侵襲所引起的森林演替過程中植被結(jié)構(gòu)變化對(duì)鳥類群落的影響，我們研究了這此常綠闊葉演替林中的鳥類群落結(jié)構(gòu)被插插的视频。2004年5-6月加勒比一本大道日韩在线观看，我們?cè)谡憬幉ㄊ羞x擇了分別處于3個(gè)不同演替階段的7個(gè)樣地：包括象山縣被松材線蟲侵襲5年后的常綠闊葉灌叢和侵襲12年后的常綠闊葉林樣地各3個(gè)，同時(shí)在天童國家級(jí)森林公園選擇了約40齡的常綠闊葉林樣地1個(gè)久久66热人妻偷产精品3D动漫。

Cubism is best defined as the exact reproduction of an image as seen from different angles simultaneously.

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The 10 a plot had the highest community average height, abundance, and above ground biomass, but the community average increased with enclosure time and the 25 a plot had the highest community average coverage. Enclosure for 10 a gave the highest species diversity index in the third plots, while 15 a had the highest' richness index and lowest evenness index. The highest evenness index was in the non-enclosure plot. Exclosure appears to maintain or conserve, rather than increase plant diversity in contrast to non-enclosure.

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