查询词典 vegetational

Field survey, sampling and testing were used to discuss the characteristics of soil water content between different subsidence stages. The results show that after mining collapsing, the soil water content and soil water storage capacity of subsidence area is obviously less than the nature area, especially for the fissure zone. It is indicated that the collapsing fissures are extremely disadvantageous for soil water-holding capacity and the conditions of vegetational cover on the subsidence area also confirmed this result.

现以神府东胜煤田为研究背景，选择两个主要塌陷阶段分布区大柳塔矿区双沟村原农场和补连塔矿区原补连沟村作为研究区，采用野外勘查、取样测试与室内参数分析综合研究的方法，对采矿塌陷不同阶段表层包气带土壤水分进行对比分析，结果表明，采矿塌陷后，塌陷区尤其是塌陷裂缝区的土壤含水量与土壤储水量值均小于未塌陷区，说明塌陷裂缝对土壤的持水作用具有非常不利的影响，塌陷区与未塌陷区的地表植被覆盖情况也证实了这一点。

In the two test sites, the soil water movement numerical models of vertical-one-dimension and cross section two-dimension have been established with the softwarer Vadose/W and self-programming code, of which the advantage is that it can deals with lower boundary and the upper boundary (such as meteorologic, vegetational, etc) conditions in convenience. The fitting between the model and observation data from sites indicates that the models are relatively high precision. So the models can be used to study problems such as soil evaporation, infiltration to recharge groundwater and so on under various conditions.

运用包气带水分运移软件Vadose/W和自编程序，建立了两个试验场垂向一维和剖面二维土壤水运移模型，该模型的优势在于可灵活地处理下边界和上边界条件，试验场观测数据拟合表明模型精度较高，可用于研究各种条件下土壤蒸发、土壤水分下渗补给地下水等问题。

Based on palynological records of the Qangzê section in Zanda basin, Ngari, Tibet, the authors have preliminarily defined the Neogene-Quaternary boundary in the area and revealed the vegetational and environmental history of the area since the late Pleistocene.

摘 要：通过对西藏阿里札达盆地香孜剖面的孢粉分析，初步定出该地区新近纪和第四纪的界线，并得到更新世晚期以来该地区植被与环境发展的历史。

Atmospheric pollen concentrations in a particular region vary markedly in response to geographical location, vegetational component, and various meterological parameters on many different time scales. Generally, during the 24-hour day, the highest pollen concentrations are observed at daylight, the lowest values are registered at night.

不同地区受其地理位置、植物组成和气候等多种因素的影响，空气花粉种类和浓度的变化模式有所不同，一般情况，一个地区白天空气花粉浓度高，夜晚浓度低；春夏季花粉浓度高，冬季花粉浓度低；春夏季乔木类植物花粉浓度高，而秋季草本类植物花粉浓度高。

Vegetational and edaphic indicators were screened to assess different degree of degeneration of grassland in Songnen Plain.

东北师范大学，生态学，2009年，博士

These are places without aristocratic baggage; egalitarian places open to talent, self-improving, engaged in learning and innovation through networks that were at once competitive and cooperative.

这些地方没有贵族遗风作祟，而且对于那些有天分的人是开放的平等之地，这些人善于通过那些曾经很具有竞争力与合作精神的关系网进行自我提高以及学习创新。

Christine: You don't want to see me?

你不想见我？