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LOS ANGELES, April 18 (Xinhua) -- Sugarcane has the effect of cooling temperatures, thus playing role in stemming global warming, a new study has found.Sugarcane does so by reflecting sunlight back into space and by lowering the temperature of the surrounding air as the plants " exhale" cooler water, according to the study conducted by researchers at the Carnegie Institution's Department of Global Ecology.The researchers used data from hundreds of satellite images over 733,000 square miles (about 1,173 square kilometers) in Brazil, where sugarcane is widely grown. They measured temperature, reflectivity (also called albedo), and evapotranspiration -- the water loss from the soil and from plants as they exhale water vapor.The findings showed that expansion of sugarcane in areas previously occupied by other Brazilian crops cools the local climate.Converting from natural vegetation to crop/pasture on average warmed the cerrado by 2.79 Fahrenheit (1.55 Centigrade, but that subsequent conversion to sugarcane, on average, cooled the surrounding air by 1.67 Fahrenheit (0.93 Centigrade), the researchers said in the study published in the April issue of Nature Climate Change."We found that shifting from natural vegetation to crops or pasture results in local warming because the plants give off less beneficial water. But the bamboo-like sugarcane is more reflective and gives off more water -- much like the natural vegetation," said lead researcher Scott Loarie. "It's a potential win-win for the climate -- using sugarcane to power vehicles reduces carbon emissions, while growing it lowers the local air temperature."Brazilians are world leaders in using biofuels for gasoline. About a quarter of their automobile fuel consumption comes from sugarcane, which significantly reduces carbon dioxide emissions that otherwise would be emitted from using gasoline.The researchers emphasized that the beneficial effects are contingent on the fact sugarcane is grown on areas previously occupied by crops or pastureland, and not in areas converted from natural vegetation. It is also important that other crops and pastureland do not move to natural vegetation areas, which would contribute to deforestation.So far most of the thinking about ecosystem effects on climate considers only impacts from greenhouse gas emissions. But according to co-researcher Greg Asner, "It's becoming increasingly clear that direct climate effects on local climate from land-use decisions constitute significant impacts that need to be considered core elements of human-caused climate change."

BEIJING, Feb. 5 (Xinhua) -- China's meteorological authority said Saturday that a cold snap would sweep north China over the next few days, bringing down temperatures and carrying gusty winds.Temperatures in some parts of Xinjiang Uygur Autonomous Region, Inner Mongolia Autonomous Region and northeast China will drop 4 to 6 degrees Celsius over the weekend, the National Meteorological Center (NMC) said in a statement on its website.In most areas north to the Huaihe River, the temperatures will go down 4 to 6 degrees Celsius, or even 8 to 10 degrees Celsius in some parts of the areas between Monday and Tuesday.The cold front would then move southward to affect more areas in the eastern and southern parts of the country.The NMC said some areas in northern and western Xinjiang Uygur Autonomous Region, the eastern part of Inner Mongolia, Sichuan Basin and most of the northeast China, the western parts of the areas south to the Yangtze River will see light to moderate snow or sleet in the forthcoming three days.Fog continued to shroud south China Saturday, reducing visibility to less than 200 meters in parts of Hunan, Hubei, Jiangxi, Sichuan and Fujian provinces, as well as Chongqing City.

KUNMING, March 13 (Xinhua) -- Local authorities said all earthquake victims had found shelter after nearly 9,000 tents were set up in the earthquake-hit Yingjiang County in southwest China.Altogether 53,000 people are being housed in large-sized tents erected in county plazas and village squares, said Jiang Zhaogang, spokesman with the rescue headquarters.Others moved in with friends, relatives, or makeshift houses for temporary accommodation, said Jiang.A 5.8-magnitude quake struck Yingjiang County in southwest China's Yunnan Province Thursday, leaving 25 dead and 314 injured. The tremor also toppled the homes of 1,039 families and left 4,994 others seriously damaged.As of Sunday, the central and local governments in Yunnan have disbursed 10,000 tents, 15,000 quilts and 15,000 coats for the homeless victims in the quake-hit region.White coated medical personnel patrolled and disinfected the tents every day, and no sign of epidemics have been detected.In one tent area, a local medical team was brewing traditional herbal juice for disease prevention, while residents lined up before the steaming wok with bowls, bottles, and even wash basins at hand."I invented this herbal brew especially for the disaster victims, which can help prevent flu and alleviate rheumatic pains," said Chen Benshan, an experienced practitioner of traditional Chinese medicine.Though the rebuilding of the county has not been put on schedule, less damaged schools are expected to resume classes on Monday."We want to start counseling classes as soon as possible to help the children recover from the terror of the earthquake," said Jin Xiasi, a member of the local rescue team.

BEIJING, Feb. 10 (Xinhua) -- China's drought control authorities announced Thursday that hours of snowfall and irrigation have eased to some extent the severe drought in parts of the nation.Rapid spreading of the dry spell in the country's winter wheat producing regions has been curbed by wide-spread snowfall in the areas along the Yangtze, Huaihe and Yellow rivers and in the country's northern part on Wednesday and Thursday, the Office of State Flood Control and Drought Relief Headquarters said in a statement on its website.Drought-hit areas in Henan and Anhui, which are two major wheat-producing provinces, were reduced by 6.3 million mu (420,000 hectares) and 4.1 million mu, respectively, from Wednesday, the statement said. The agency added that irrigation also contributed to easing the effects of the drought.The statement said that as of Thursday, eight drought-hit provinces had irrigated 143 million mu of drought-affected wheat producing areas, which accounts for 52 percent of the combined winter wheat producing areas in the provinces. The eight provinces include the territories of Shandong, Henan, Hubei, Anhui, Shanxi, Shaanxi, Gansu and Jiangsu.As of 3 p.m. Thursday, the drought had affected 101.28 million mu of crops nationwide and left 2.81 million people and 2.57 million heads of livestock short of drinking water, said the statement.Cloud seeding on Wednesday and Thursday during a recent cold front, also helped alleviate drought in some regions, according to a report posted on the website of the China Meteorological Administration on Thursday.The report also said that the artificial precipitation had mitigated the shortage of moisture in the soil in parts of Henan and Anhui. The situation is expected to improve as the rain and snow continues.However, experts urged more measures from local governments to ensure winter wheat production since the current precipitation is not adequate to "completely ease the drought", the report said.

SYDNEY, Jan. 25 (Xinhua) -- Huawei Technologies, on Monday asked a U.S. District Court to prevent Motorola from illegally transferring Huawei's intellectual property (IP) to Nokia Siemens Networks ("NSN"), officials of Huawei told Xinhua in Sydney, Australia on Tuesday.As a leading player in providing next generation telecommunications network solutions, Huawei took this action as NSN seeks to complete its 1.2 billion U.S. dollars acquisition of Motorola's wireless network business.Since 2000, Huawei and Motorola have had a cooperative relationship in the radio access network and core network businesses, where Motorola has resold Huawei wireless network products to customers under the Motorola name. During this period, Motorola was provided with products and confidential Huawei IP developed by Huawei's team of more than 10,000 engineers.Since the July 2010 announcement by NSN of its purchase of Motorola's wireless network business, Huawei has tried to ensure that Motorola does not transfer this confidential information to NSN.According to officials of Huawei, Motorola's failure to adopt measures sufficient to ensure that Huawei's proprietary information remains confidential has compelled the company to file for the appropriate legal protection of its rights.The officials said Huawei respects the rights of intellectual property holders and is equally committed to the protection of its own innovations and intellectual property.Nearly half of Huawei's 100,000 plus employees are engaged in research and development and Huawei allocates an average of 10 percent of all revenues to R&D annually. By the end of 2010, Huawei had applied for 49,040 essential patents on a global basis.

来源：资阳报