武清男科医院找龙济医院(天津武清区龙济男性科) (今日更新中)

CHANGSHA/HARBIN, Feb. 12 (Xinhua) -- As Chinese people are embracing the arrival of the Year of Tiger on Saturday, zoologists are worried about the survival of South China Tigers as the endangered species are facing a serious problem of inbreeding.No traces of the tigers have been found in the last decade, they said.The number of captive South China tigers (Panthera tigris amoyenesis) rose to 92 in 2009 from 60 in 2007 but all the tigers were the offsprings of six wild South China tigers which were caught more than 40 years ago, said Deng Xuejian, a professor with the Department of Biology of Hunan Normal University, based in Changsha, capital of central China's Hunan Province."The inbreeding may lead to genetic freaks, low survival rates and poor physical makeup," Deng said.All the genes have come from two male and four female tigers, which had lead to highly identical genes in the offspring, Deng said."The situation may reduce the genetic diversity and cause degradation or even the extinction of the species," he said.The tigers would lose genetic diversity if their genes were too similar, said Ma Zaiyu, president of veterinary hospital of Changsha Zoo."The number of the members of a species should be at least 1,000 to maintain the stability of the species," Ma said.Zoologists estimated the number of wild South China tigers could have been less than 30 in the 1990s. The remaining wild tigers are presumed to live in the remote areas of Guangdong, Hunan, Fujian and Jiangxi provinces, Deng Xuejian said.Based on analysis of relevant date combining field investigation, Deng estimated the number of wild South China tigers could be less than 10.No traces of wild South China tigers were reported in Hunan in the last two years, said Zhou Shuhuai, director of wildlife protection section of the Hunan provincial forestry bureau."The number is limited and the tigers scatter in different areas, which make it difficult for natural breeding between wild tigers," said Huang Gongqing, a tiger expert at South China Tiger Breeding Base in Suzhou, a city of east China's Jiangsu Province."The extinction of the wild tigers will happen sooner or later," Huang warned.Some experts have said that there may be already no wild South China tigers. "However, we cannot know as the animal is very difficult to trace," Deng said.Ma Zaiyu said to avoid extinction of the species, more captive tigers should be bred, and some genes might be recovered when the population reaches 1,000, while Deng suggested continuous search for wild tigers to enrich the captive tigers' genes.The situation is much better for the Siberian tigers (panthera tigris altaica) in northeast China as the number of the wild ones is quite stable, experts said.The number maintains at around 20 in China, among which 10 to 14 are in Heilongjiang Province and eight to ten are in Jilin Province, said Sun Haiyi, deputy director of Heilongjiang Wildlife Institute"But no more young tigers under one year old have been discovered in the past two years. The reason might be the number of female tigers are less than the males and the animals are relatively isolated by the mountains," Sun said.China established a breeding base for the Siberian tigers in Heilongjiang in 1986 and the number of captive tigers has increased from eight to current more than 800, Sun said.Experts called for more efforts to protect the habitats of the tigers for the purpose of protection and re-wilding of the tigers.

XI'AN, Feb. 6 (Xinhua) -- A high-speed railway linking central China city Zhengzhou and northwestern city Xi'an, went into operation Saturday.The 505-km Zhengzhou-Xi'an high-speed railway, the first of its kind in central and western China, cut the travel time between the two cities from former more than six hours to less than two hours, said local railway authorities Saturday.The first train left Xi'an, capital of Shaanxi Province, at 10:50 a.m. and arrived at Zhengzhou, capital of Henan Province, at 1:15 p.m., said Long Jing, head of the Xi'an Railway Bureau. With a speed of 350 kilometers per hour, the high-speed Electric Multiple Unit (EMU) train coded G2004 is about to leave Xi'an for Zhengzhou in Xi'an Railway Station, northwest China's Shaanxi Province, on Feb. 6, 2010.The train traveled at 350 kilometers per hour, said Long. A total of 14 trains would be traveling between Zhengzhou and Xi'an everyday, said Long.The first train from Zhengzhou to Xi'an departed from Zhengzhou at 11:25 a.m. and arrived at Xi'an at 2:01 p.m., said Niu Jianfeng, spokesman of the Zhengzhou Railway Bureau.The Zhengzhou-Xi'an high-speed railway, included in the country's "Mid- and long-term railway network plan", has been built since Sept. 25, 2005, with a total investment of about 35.31 billion yuan (5.17 billion U.S. dollars), said Niu. With a speed of 350 kilometers per hour, a high-speed Electric Multiple Unit (EMU) train is on test operation en route from Xi'an to Zhengzhou, in Tongguan, northwest China's Shaanxi Province, on Feb. 4, 2010."The Zhengzhou-Xi'an high-speed railway will meet the growing demand of of passenger and cargo transportation in central and western China, and help promote local development," said Wang Yongping, spokesman of the Ministry of Railways.Henan is one of the major grain producers of China and an emerging economic and industrial powerhouse. This most populous province in China is also a major tourist attraction with a great number of sites of historical and cultural interests. Shaanxi boasts rich cultural resources and is endowed with rich natural resources such as coal, petroluem, and natural gas.The country's total railway coverage will be more than 110,000 kilometers by 2012 and 120,000 kilometers by 2020, according to the "Mid- and long-term railway network plan"."By 2012, it will take less than eight hours to travel by train from Beijing to most provincial capitals in China," said Long.

BEIJING, March 14 (Xinhua) -- The development road of China will be bumpy and even thorny in the next few years, Premier Wen Jiabao told a press conference Sunday rightly after the conclusion of the national legislature's annual session.He called for unslackened efforts to tackle difficulties, saying "we must have firm confidence.""No matter how high a mountain is, one can always ascend to the top. The only way out and hope when facing difficulties lie in our own efforts," Wen said.Chinese Premier Wen Jiabao smiles during a press conference after the closing meeting of the Third Session of the 11th National People's Congress (NPC) at the Great Hall of the People in Beijing, capital of China, March 14, 2010He also said he holds deep love for the country and vowed strong commitments in the next three years of his term.

KAMPALA, Jan. 25 (Xinhua) -- Ugandan President Yoweri Museveni on Monday met officials of the China National Offshore Oil Corporation (CNOOC) amidst increased lobbying by international oil giants to enter the country's oil sector.A State House statement issued here said that the CNOOC officials who met Museveni at State House Entebbe, 40km south of the capital Kampala, expressed interest in joining Uganda's oil and gas sector by partnering up with Tullow, an Irish oil company.Tullow, which has oil blocks in western Uganda, is seeking a partner to help it start oil production in the country.The CNOOC meeting comes weeks after Italian oil giant, Eni Spa, also expressed interest in joining the country's oil sector, promising an oil refinery and a power plant.Eni wants to enter the sector by buying stakes of another oil company Heritage Oil which jointly operates two blocks with Tullow on a 50-50 percent venture.The Eni-Heritage deal which is yet to be concluded is embroiled in controversy as Tullow exercised a pre-emption move saying it has the first option to buy the Heritage stakes, a move the government said it would not accept because it would create a monopoly.Museveni told the CNOOC officials joined by Tullow officials that the government will discuss all proposals and announce its decision soon."President Museveni said that the government will discuss all proposals by companies operating in the oil and gas sector adding that the country looks forward to welcoming new companies," the statement said.The Museveni-CNOOC-Tullow meet also comes days after Aiden Heavey, Tullow's chief executive met Museveni urging Uganda to honor contractual obligations following the Eni-Heritage deal.Uganda's recently discovered oil is attracting a lot of attention from international oil giants.So far the country has discovered an estimated two billion barrels of oil and according to experts there is a possibility of discovering more.

BEIJING, Feb. 24 (Xinhua) -- Chinese military and international relations experts on Wednesday said that a recent Pentagon report playing down Taiwan's aerial combat capability was a front for more advanced arms sales to the island, which would seriously violate a Sino-U.S. agreement that Washington endorsed 28 years ago. "Any further arms sales, especially if the U.S. sells F-16 fighters to Taiwan, would increase already strained tensions with China," Prof. Tan Kaijia with the National Defense University of the People's Liberation Army told Xinhua. The report delivered by the Defense Intelligence Agency of the U.S. Department of Defense to the Congress has stressed that many of Taiwan's 400 active combat aircraft were not operationally capable due their age and maintenance problems. It also specified that Taiwan's 60 U.S.-made F-5 fighters have reached the end of their operating life and some of the island's F-16 A/B jet fighters needed improvement to increase combat effectiveness. The Pentagon's report came as Taiwan continued to voice its need for advanced U.S. weaponry such as 66 F-16 C/Ds, a substantial improvement model on Taiwan's current F-16 A/Bs. But the U.S. side excluded the fighters from the latest arms sale package. According to media reports, Taiwan currently operates 60 U.S.-made F-5 fighters, 148 F-16 A/Bs, 56 French-made Mirage 2000-5 fighter jets and 126 locally produced Indigenous Defense Fighter (IDF) aircraft. "If the U.S. equips Taiwan with new F-16s, replacing the second-generation F-5s, it would significantly increase the island's aerial combat effectiveness for F-16's compatibility to other U.S.-made weapon systems such as airborne early warning and control aircraft through Link-16 Multifunctional Information Distribution System," said Prof. Tan. According to the Communique jointly issued by the Chinese and U.S. governments on Aug. 17, 1982, the U.S. side states that "its arms sales to Taiwan will not exceed, either in qualitative or in quantitative terms, the level of those supplied in recent years since the establishment of diplomatic relations between the U.S. and China." "Comprehensive performance of the F-16s is far beyond that of the F-5s and the qualitative parameters of the F-16 C/Ds also exceed those of the F-16 A/Bs," said Tan. Selling such arms would "be an overt offense" against the Aug. 17 Communique, and promoting such a move by an elaborate report would not give any justification for the U.S. since the F-16 C/Ds would not be considered as a defensive weapon in any case, he said. Guo Zhenyuan, a researcher with the prominent thinktank China Institute of International Studies, told Xinhua that previous U.S. arms sales to Taiwan were covered by the front of "providing Taiwan with arms of a defensive character" to ease the backlash to the bilateral relationship from the Chinese side. "The U.S. side should know that the sooner it stops selling arms to Taiwan, the more willing China would be to work with it on global and regional issues," Prof. Jin Canrong with Renmin University of China said. Enditem Xinhua writer Li Hanfang contributed to the story.

来源：资阳报