查询词典 infertile soil

By using the basic principle of soil hydrodynamics,this paper designs the indoor experiment of soil water infiltration under surge furrow irrigation ,and in the light of the influence of the different water-supplying times,circulating ratios and periods on the soil water infiltration process,determines some parameters related to the soil water movement.

应用土壤水动力学的基本原理，设计了波涌沟灌条件下水分入渗的室内试验，针对不同供水时间、循环率及周期对土壤水分入渗过程的影响，测定土壤水分运动有关参数。

In this paper, the North subtropical cork oak forests, fir, pine torch, Mao bamboo and Chinese fir forest soil in the budding B, Mo, Cu, Zn, Fe, Mn and effective content distribution in soil profiles in the law affecting their effective of soil factors and the different stands on soil micro-nutrient contents.

将以下中文摘要翻译成英文摘要本文研究了北亚热带栓皮栎林、杉木林、火炬松林、毛竹林和杉木萌芽林土壤中B、Mo、Cu、Zn、Fe、Mn的有效含量、在土壤剖面中的分布规律、影响其有效性的土壤因子以及不同林分对土壤微量养分含量的影响。

Diversity of soil surface, stone gully and stone pit is 1.199, 1.592 and 1.962; evenness index of soil surface, stone gully and stone pit is 0.616, 0.989 and 1.095; dominance of soil surface, stone gully and stone pit is 0.545, 0.353 and 0.245 in soil macrofauna community structure.

土面生境土壤动物的多样性指数为1.199，石沟的为1.592，石槽的为1.962；均匀性指数为0.616，石沟的为0.989，石槽的为1.095；土面生境土壤动物的优势度为0.545，石沟的为0.353，石槽的为0.245。

Diversity of soil surface, stone gully and stone pit is 1.199, 1.592 and 1.962; evenness index of soil surface, stone gully and stone pit is 0.616, 0.989 and 1.095; dominance of soil surface, stone gully and stone pit is 0.545, 0.353 and 0.245 in soil macrofauna community structure.

土面生境土壤动物的多样性指数为1.199，石沟的为1.592，石槽的为1.962；土面生境土壤动物的均匀性指数为0.616，石沟的为0.989，石槽的为1.095；土面生境土壤动物的优势度为0.545，石沟的为0.353，石槽为0.245。

The spatial-temporal variance of soil organic matter was researched in this paper in terms of 300 paddy soil samples in 2004 and 706 paddy soil samples of The Second Soil Survey of China in Hainan Province.

根据2004年采集的300个海南不同地区水稻土耕作层样品分析数据和第二次土壤普查的706个剖面点资料，对全省水稻土有机质时空变异特征进行了研究和分析。

Firstly,soil erosion modulus was estimated using USLE and maps of soil density and soil horizon thickness were derived from detailed soil survey data.

土壤侵蚀是造成地表水土流失的直接原因，也是我国国土整治的主要目标和任务[2]。

But the test data suggest that the placement of soil nailing decreases the vertical stress of soil. So the soil's self-stability and bearing capability are increased, yet the soil strength is not be enhanced.

然而测试结果表明，土钉的设置减小了边壁土体中的垂直应力，因而土体自稳性和承载能力得以提高，并非是提高了土体的强度。

The correlated distances of bottom soil watercontent at different times were bigger than those of surface soil. Soil salt content did not have thisphenomena. The possible reason was that the bottom soil salt content was mainly affected bygroundwater.

两个时期土壤底层含水量的自相关距都要大于表层的自相关距，而盐分的空间自相关距没有表现出这种现象，这可能与底层盐分受到地下水作用的影响比较大有关。

Using the relative reflection as weighting factor, the weighted mean of the surface albedo over Dunhuang Gobi in typical arid region is calculated and its values are 0.255 ± 0.021. After canceling the interference of the buildings, the mean values of the roughness length averaged with logarithm is 0.0019 ± 0.00071 m. After removing the influence of the oasis, the soil wetness factor computed with data under condition of no precipitation is 0.0045. After removing the influence of the precipitation .the mean values of the soil heat capacity over Dunhuang Gobi in typical ac-id region is 112 × 10 ~6 m~(-3)K~(-1), a bit smaller than the values observed i n HEIFE. But the soil heat diffusivity and conductivity are about one of those observed in HEIFE. The soil water content over Dunhuang Gobi in typical synoptic condition is very little and does not exceed 1% basically.

并且利用相对反射为权重加权平均，计算得到典型干旱区敦煌荒漠戈壁的平均反射率为0.255±0.021；剔除建筑物干扰后，利用对数平均法计算的粗糙度长度平均值为0，0019±0.00071 m；剔除绿洲影响后，用无降水影响的资料确定出土壤湿度影响因子为0.0045；剔除降水影响后，用观测资料计算的敦煌典型干旱区荒漠戈壁的热容量平均值为1.12×10~6m~（－3）K~（－1），比&黑河试验&在戈壁和在其它沙漠观测的有关值略小一些，但热扩散率和热传导率都比&黑河试验&在戈壁观测的值小一倍左右；观测的敦煌戈壁典型天气条件下的土壤含水量非常小，基本上不超过1％。

Is within the flow region, rivers rare, soil essential for the desert soil, and thick bone soil and saline soil; vegetation is extremely sparse shrubs, semi-shrubs, mainly, there are large tracts of land barren; land type is mainly mountainous and desert, erosion stone Gobi, alluvial gravel Gobi and mobile sand.

属内流区，河流稀少，土壤基本为荒漠土、粗骨土和盐土；植被以极其稀疏的灌木、半灌木为主，还有大片土地寸草不生；土地类型则主要为山地荒漠、剥蚀石质戈壁、洪积砾石戈壁以及流动沙地。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。