CHINESE Premier Li Keqiang＇s arrival in Nairobi in May on the last leg of a four-nation Africa trip seemed to be a bail-out for Kenya economically, Kenya was in need of funds to build a new railway line, improve ener...CHINESE Premier Li Keqiang＇s arrival in Nairobi in May on the last leg of a four-nation Africa trip seemed to be a bail-out for Kenya economically, Kenya was in need of funds to build a new railway line, improve energy production, boost water supply to homes, protect endangered wildlife and establish a research center.展开更多
China has adopted a special income tax on oil companies, to restrict excessive monopoly profits and subsidize weak sectors O n April 4, the China Petroleum & Chemical Corp., known as Sinopec, together with its hol...China has adopted a special income tax on oil companies, to restrict excessive monopoly profits and subsidize weak sectors O n April 4, the China Petroleum & Chemical Corp., known as Sinopec, together with its holding subsidiaries Sinopec Shengli Oilfield Daming Co. Ltd.展开更多
The age structure of a Lurix gmelini population in the northern part of the Great Xingan mountains consists of one to several age waves. Three types (one-, two- and multi-generation populations) , plusing eleven subty...The age structure of a Lurix gmelini population in the northern part of the Great Xingan mountains consists of one to several age waves. Three types (one-, two- and multi-generation populations) , plusing eleven subtypes of age structure can be classified. As the basic unit of the age structure, age waves show an apparent β distribution in the range from 20 to 60 years. The interval between the starting points of two adjacent age waves is more than 100 years. Natural disturbances,especially forest fires that occurred in this area have had an important effect on the age structure. Most of the age waves resulted from forest fires, but the effect of windfall on the age structure also can be revealed through the analysis of young age waves. Generally, high intensity and low frequency fires are usually followed by one-generation populations, while low intensity and high frequency fires by two- or multi-generation populations.展开更多
文摘CHINESE Premier Li Keqiang＇s arrival in Nairobi in May on the last leg of a four-nation Africa trip seemed to be a bail-out for Kenya economically, Kenya was in need of funds to build a new railway line, improve energy production, boost water supply to homes, protect endangered wildlife and establish a research center.
文摘China has adopted a special income tax on oil companies, to restrict excessive monopoly profits and subsidize weak sectors O n April 4, the China Petroleum & Chemical Corp., known as Sinopec, together with its holding subsidiaries Sinopec Shengli Oilfield Daming Co. Ltd.
基金This project was supported by the National Natural Science Foundation of China
文摘The age structure of a Lurix gmelini population in the northern part of the Great Xingan mountains consists of one to several age waves. Three types (one-, two- and multi-generation populations) , plusing eleven subtypes of age structure can be classified. As the basic unit of the age structure, age waves show an apparent β distribution in the range from 20 to 60 years. The interval between the starting points of two adjacent age waves is more than 100 years. Natural disturbances,especially forest fires that occurred in this area have had an important effect on the age structure. Most of the age waves resulted from forest fires, but the effect of windfall on the age structure also can be revealed through the analysis of young age waves. Generally, high intensity and low frequency fires are usually followed by one-generation populations, while low intensity and high frequency fires by two- or multi-generation populations.
