一枝黄花

In this paper,the biological characteristics,chemical compositions and fiber morphology of Solidago canadesis are studied.

对加拿大一枝黄花生物特性、化学组成及纤维形态进行了分析。

Effective measures must be taken to protect these areas and others from Solidago canadensis invasion.

必须采取有效措施阻止加拿大一枝黄花扩散蔓延。

The research aimed to study the infection and evaluation of vegetable diversity on island caused by invasion of Solidago canadensis.

研究加拿大一枝黄花入侵对海岛植物多样性的影响，并对其进行了评价。

Study of the Biological Characteristics Solidago Canadensis.

加拿大一枝黄花生物学特性初步试验。

Any of numerous chiefly summer-blooming and fall-blooming North American plants especially of the genus Solidago.

北美洲的一枝黄花属植物，主要在夏季和秋季开花。

The main results are as follows:(1) Strong allelopathic effects of Solidago canadensis in flower period were observed, with facilitating effect on growth of crop seedling under treatment with 25 mg?

结果表明：(1)处于开花期的加拿大一枝黄花存在明显的化感作用，在25mg？

Results show that Solidago canadensis may infest an area much larger than that of its actual distribution now, suggesting that Solidago canadensis will continue to expand in China.

结果表明：加拿大一枝黄花在我国有广泛的潜在分布区，目前的实际分布远未达其最大潜在分布范围，仍有可能继续扩散。

Solidago canadensis can quickly grow and propagate, regarded as a harmful species to many other species, so it was being eradicated everywhere in our country now.

加拿大一枝黄花近年来一直被视为生物毒害性物种，它具有快速的生长和很强的蔓延能力。

Result The results showed that the invasion of Solidago canadensi had a large effects on species, composing and vegetable diversity of plant community on island.

结果］结果表明，外来植物加拿大一枝黄花的入侵已经对海岛植物群落的种类及其构成、物种丰富度和植物多样性带来了较大程度的影响。

In terms of prevention and control Solidago canadensis invasion, the reclamation of abandoned and idle land should be intensified so as to limit establishment from points of origin.

对于加拿大一枝黄花的防控，应加大对抛荒地和闲置地的复垦力度，从源头上控制其发生面积。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。