北界

This paper offers an important evidence to identify the north realm of ecotone between the Palaearctic and the Oriental in Shandong Province.

为古北区和东洋区过渡带的北界判定提供了重要参考，也为两界在山东省内的划分提供了重要依据。

So this area has mixed features of both Palaearctic realm and Oriental realm.

具有东洋界和古北界两界混杂和过渡的特征。

There will be an obvious important effect of global climatic change in future on cropping systems in China. The heat resource will be increased to a certain extent in all regions of China, and the north borderline of two crops per annual or three crops per annual will move northwardly, the cropping range, output and quality of crps Will be changed.

未来全球性气候变暖对我国的种植制度将产生明显的影响，预计我国各地的热量资源将有不同程度的增加，使一年二熟、一年三熟的种植北界有所北移，主要农作物的种植范围、产量、质量都会有所变化。

There will be an obvious important effect of global climatic change in future on cropping systems in China The heat resource will be increased to a certain extent in all regions of China, and the north borderline of two crops per annual or three crops per annual will move northwardly, the cropping range, output and quality of crops will be changed However, there will be a uncertainty of changes of cropping systems due to the adverse impact of moisture changes of climate in the future

未来全球性气候变暖对我国的种植制度将产生明显的影响，预计我国各地的热量资源将有不同程度的增加，使一年二熟、一年三熟的种植北界有所北移，主要农作物的种植范围、产量、质量都会有所变化。但由于水分变化可能产生的不利影响，使种植制度的变化具有较大的不确定性。

Investigation and analysis were conducted on the distribution p attern and characteristics of the evergreen elfin forest to study the north bord er of the north subtropical distribution in Henan.

对常绿矮曲林类型分布规律、性质和特征进行了调查分析，探讨了北亚热北界在河南的位置，进一步完善和验证了伏牛山脊主峰一线为北亚热带北界的理论。

The analysis results of species in avifaunal subregions of China by cluster method and PAE method were basically consistent, which supported two realms (palaearctic realm and oriental realm) of zoogeographical region divided by the line of Qinling Mountains.

用聚类方法和PAE方法对鸟类亚区分布格局的分析结果基本一致，都支持我国鸟类动物地理区系归属于古北界和东洋界，两界以喜马拉雅山脉和秦岭山脉一带构成两界的分界线。

This is corresponding to huge population size and extensive distribution of Pelohylax nigromaculata throughout Palaearctic and Oriental Regions.

这样高的单元型多样性和核苷酸多样性与黑斑侧褶蛙作为古北界和东洋界的广布种，种群大是相应的。

Among breeding birds, the rate of the Palaearctic species and Oriental species is 1: 3.87, which showes more characseristics of Oriental realm.

在繁殖鸟中古北界种类与东洋界种类之比为1：3.87，偏重于东洋界。

Avian funna are composed of 44.8 % species of Palaearctic realm species, 40.8% of Orienial realm species and 14.4% of epidemic species.

对繁殖鸟类的区系分析表明：古北界种类占繁殖鸟总数的44.8%，东洋界种类占40.8%，广布种占14.4%，古北界种类稍占优势。

The species of Sarcophagidae in Shanxi province make up 36.3% of Sarcophagidae known in China,also 3.9% of those in the world.

山西省麻蝇科种数占全国已知种数的36.3%，约占世界麻蝇科种数的3.9%，其中古北界种连同古北界共同种占98.0%。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。