查询词典 savanna

According to the phytosociological theories and methods of Braun-Blanquet's school, the regional savanna vegetation of the dry-hot valleys of Yuanjiang river had been investigated. Based on the principle of fidelity degree, the typical 110 releves taken from every sampling stands of the dry-hot valleys were sorted up from below to upper into 15 Associations, then into 5 Alliances, 2 Orders and 1 Class. A synoptic classification system of Class-Order-Alliance-Association was established for the purpose to reflect deeply the characteristics of all syntaxa there in the aspect of plant component and their abundance-dominancy, presence, cover coefficient, life form, growth form, and ecological environment, community structure, species types and so on.

采用Braun-Blanquet植物群落学研究的理论与方法，对云南元江中上游干热河谷分布的植被进行考察研究，把各处取得较典型的110个样地记录按确限度的原则由下而上归类成15个群丛、5个群属、2个群目和1个群纲，建立了元江干热河谷萨王纳植被群纲—群目—群属—群丛分类系统综合表和15个群丛表，以全面深入反映全干热河谷植物群落各级分类单位中各植物种类组成的多优度、存在度、盖度系数、生活型和生长型等特征及其群落结构、生态环境和种型类别。

Diverse phenological performances, xeromorphic leaf traits and different responses to drought in the savanna woody species with different leaf phenology may facilitate partitioning of resource utilization and hence co-existence of woody plants in dry-hot valley savannas.

元江干热河谷木本植物表现出来的多样性的物候特征、旱生的叶片形态结构以及不同物候类型植物的光合生理对干旱适应策略的差异有助于促进资源的合理分配和利用，促进物种共存。

Almost all life in the savanna depends on the grass; and carnivores lurk in it stalking herbivores, who eat it.

几乎所有的生命都要依赖热带草原的草丛活命，而食肉动物潜伏在草丛中，准备猎杀吃掉食草动物。

Then, when moister times returned, the lakes filled and parts of the Sahara were transformed to savanna.

然而，当潮湿时期重新到来时，湖水充盈，撒哈拉大部分变成了大草原。

It contains stunning images of wildebeests thundering across the savanna at twilight, and a walrus rising out of the sea in Canada, showing off his tusks as the waves and ice crash around him.

书中纳入角马在黄昏雷鸣般穿越大草原的绝妙图片，以及在加拿大，海象在海中立起、在海浪和破碎海冰的冲击下，露出獠牙的图片。

The earliest modern humans in the region were hunters and gatherers who lived in a savanna landscape about 130,000 years ago.

这个地区最早的现代人是大约13万年前生活在草原地带的狩猎和果实采集人。

Researching the plants that were associated with savanna, Packard soon came up with a list of other associated species -- such as thistles, cream gentians, and yellow pimpernels -- that he quickly realized peppered the fringes of his restoration sites.

研究了那些与热带稀树大草原有关的植物之后，帕卡德很快列出其它伴生树种——如，蓟、黄龙胆和紫繁篓——他迅速认识了自己重建地块那些活力十足的点缀植物。

Researching the plants that were associated with savanna, Packard soon came up with a list of other associated species -- such as thistles, cream gentians, and yellow pimpernels -- that he quickly realized peppered the fringes of his restoration sites.

研究了那些与稀树大草原有关的植物之后，帕克德很快意识到，在他的重建地边缘还点缀着其他的伴生物种，如蒲公英、霜龙胆和金钱草。

Researching the plants that were associated with savanna, Packard soon came up with a list of other associated species -- such as thistles, cream gentians, and yellow pimpernels -- that he quickly realized peppered the fringes of his restoration sites.

主要见于东非、南美巴西高原和印度等地。以高达1米以上的旱生禾草为主要成分所组成的草被层占优势，在这种草被层的背景上散生着一些旱生矮乔木。

When the savanna grass shouldered out cactus, they weeded fiercely.

当热带草地上的草疯长，超过了仙人掌的高度，他们就开展除草行动。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。