查询词典 index

In this paper,studied on the soil collembolan in the Liangshui National Natural Conserve.Adopt diversity index,evenness index and common index to analyze.In the 10 habitats,the number of soil collembolan in the manmade Korean pine forest is the most.

对凉水国家自然保护区土壤虫的生态分布进行了研究，采用多样性指数、均匀度指数、共同性指数进行了分析。10个生境中土壤虫数量最多的是人工红松林，最少的是草甸。

Species richness and Pielou evenness index were used to measure species diversity. Species richness in polluted area was 32-67, while in control area it was 47-82. Pielou evenness index of tree layer was 0.1161-0.8509, while those of shrub layer and herb layer were 0.1763-0.3249 and 0.0443-0.2601, respectively. The results showed that both species richness and Pielou evenness index were influenced by the point source pollution. Species importance values showed significant differences between polluted area and control area. Dominance of different species had changed, and some species even disappeared under the pressure of pollution, indicating a process of species replacement in plant communities. Such species replacement can provide a scientific basis for species selection for restoration of human-damaged ecosystem. The natural regeneration of Quercus variabilis was insensitive to pollution, while Cupressus funebris was effected seriously.

仅在污染区中出现的物种数量远低于仅在对照区中出现的物种数量；(2)可分出4种基本的群落类型：马尾松林、柏木林、栓皮栎林和马尾松＋栓皮栎林，各群落特定层次的物种丰富度指数以及Pielou均匀度指数在污染区与对照区之间存在显著差异；(3)污染胁迫下，物种在群落中的生态优势度发生了变化，反映了群落中不同物种相互替代的过程，这种物种的替代可为今后受损生态系统人为恢复过程中物种的筛选提供一定的理论参考；(4)对群落中王要物种更新的调查发现：栓皮栎林对污染不敏感；柏木林污染区与对照区幼苗数量及分布格局均有明显差异，污染条件下群落未来演替受到严重干扰。

Keywords alkane; cyclane ;aliphatic alcohol;aliphatic ketone;gas chromatography retention index;molecule shape index;electrotopological state index

烷烃；环烷烃；脂肪醇；脂肪酮；色谱保留指数；分子形状指数；电性拓扑状态指数

The result makes clear: 1 index of pressure of Chinese farmland zoology is older, be in ascendant trend, its are main the reason is our country farmland the area decreases in great quantities continuously and population increases;2 farmland pressure quickly to save time difference bigger, the farmland pressure of southeast and southwest is apparent prep above is mid with heighten of grade of index of pressure of zoology of farmland of municipality directly under the Central Government of upper zone;3 and southeast ministry area, upper, northwest and mid major area exponential grade is invariant, only mid with the decrescent of grade of index of a few district, but not apparent.

结果表明：1近11年的中国耕地生态压力指数比较大，并处于上升趋向，其主要原因是我国耕地面积持续大量的减少和人口快速的增加；2耕地压力省际差异比较大，东南和西南地区的耕地压力明显高于中部和北部地区；3直辖市和东南部地区耕地生态压力指数等级增高，北部、西北和中部的大部分地区指数等级无变化，仅中部和东北部的少数地区指数等级变小，但并不明显。

Results: the results showed that extracts of Artemsia dracunculus L. at the dose of 7.5%,3.75%,1.875% 20 ml/kg.w, can cause a signficant increase of WBC (P.05), thymus index, spleen index,(P.05) phagocytic rate and phagocytic index of phagocyte,(P.05) the transformation rate of the spleen lymphocytes,(P.05) and the serum IL-2(P.05),serum hemolysin concentration 50%( P.05)in immunodepressed mice. Conclusions: extracts oil from Artemsia dracunculus L. can significantly enhance the non-specific, cell-mediated and humoral immunological function in immunodepressed mice.

结果：与模型组比较，椒蒿挥发油各组均能升高小鼠外周血白细胞数(P＜0.05)；均能升高胸腺指数(P＜0.05)、脾指数(P＜0.05)；均能提高免疫受抑小鼠腹腔巨噬细胞的吞噬率，吞噬指数(P＜0.05)；均能升高脾淋巴细胞转化率(P＜0.05)；椒蒿挥发油各组血清IL-2值明显高于环磷酰胺对照组(P＜0.05)；椒蒿挥发油各组均可升高小鼠的血清半数溶血值(P＜0.05)。

Results showed that cultivation of milk vetch significantly lowered concentrations of heavy metals and soil comprehensive pollution index, and more or less the same as the treatments of organic reagents, except for effect on decreasing Zn and Cd concentrations and comprehensive heavy metal pollution index, which were not so big in scale. When compared with the treatment of milk vetch + organic reagents, the treatment of milk vetch did not differ much in heavy metal concentrations and comprehensive pollution index. Elsholtzia splendens Nakai ex F.

结果表明，紫云英处理显著降低土壤重金属浓度和土壤综合污染指数，下降幅度与CK比呈极显著差异；除土壤Zn、Cd浓度和土壤重金属多因子综合污染指数的下降幅度显著低于有机试剂处理，其他与有机试剂处理均无显著差异；紫云英处理与&紫云英＋有机试剂&的交互作用处理相比，土壤重金属浓度和土壤综合污染指数的下降幅度无显著差异。

Through the collection and selection of the original data, the establishment of comprehensive assessment index regime and the determination of index weight, this thesis establishes a canonical and exercisable quality index system of construction projects.

通过原始数据的分析整理、综合评价指标体系的确定、各级指标的赋权以及建筑工程质量指数计算方法的选择和指数分析模型的建立，本文构建了较为规范的建筑工程质量指数体系。

Therefore, we analyzed the influenceof venovenous RRT on measurement of cardiac index, intrathoracicblood volume index, and extravascular lung water index.

因此，作者通过测量心脏指数、胸内血容量指数及血管外肺水指数来分析肾脏替代疗法对其的影响。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

Surface frication meteorological index related to meteorological conditions was defined.Based on its influence to safety driving,surface frication meteorological index grades were established in high way of Jilin province.And a method of forecasting surface friction meteorological index was discussed according to weather conditions.

定义了与气象条件有关的路面摩擦气象指数，根据其对车辆安全行驶的影响，制定了吉林省高速公路路面摩擦气象指数的等级划分标准，研究探讨了根据天气条件预报高速公路路面摩擦气象指数的方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。