欧美精品在线第一页,久久av影院,午夜视频在线播放一三,久久91精品久久久久久秒播,成人一区三区,久久综合狠狠综合久久狠狠色综合,成人av一区二区亚洲精,欧美a级在线观看

        China focus: Why the Yellow River so matters

        Source: Xinhua| 2019-09-20 10:08:41|Editor: huaxia
        Video PlayerClose

        BEIJING, Sept. 20 (Xinhua) -- The Yellow River, China's second-longest, is expected to play a more important role in the country's development with new efforts in environmental protection and high quality development in the river basin. Here is some information one needs to know regarding the river's legend, history and geography.

        The 5,464-km-long waterway feeds about 12 percent of China's population, irrigates about 15 percent of arable land, supports 14 percent of national GDP, and supplies water to more than 60 cities.

        Originating in Qinghai Province, the Yellow River, known as China's "Mother River" and the cradle of Chinese civilization, runs through nine provinces and autonomous regions including Shaanxi and Henan before emptying into the Bohai Sea in east China's Shandong Province.

        The river got its name Huanghe in Chinese because of its yellow, muddy water, which appears as it runs through the Loess Plateau in northwest China.

        Primitive men, including the Homo Erectus fossil discovered in Lantian County, Shaanxi Province, were found to live in the Yellow River basin more than 1.1 million years ago, which boasts a large number of sites of ancient cultures.

        The Yellow Emperor, considered one of the common ancestors for all Chinese, was born in the city of Xinzheng, Henan Province more than 4,000 years ago. The Yellow Emperor and Yan Emperor are two legendary ancestors of the Chinese nation.

        For over 3,000 years, some major dynasties in Chinese history built their capitals in the river basin, making the region the centers of politics, economy and culture in the country.

        The Yellow River also witnessed the birth of the four era-defining inventions in ancient China -- printing techniques, papermaking, gunpowder and the compass, which all emerged in the drainage basin.

        Ironworks discovered in the region show the technologies of softening cast iron in China came 2,000 years earlier than similar technologies invented in Europe.

        "The drainage area of the Yellow River lays the foundation for the 5,000-year-old Chinese civilization. The culture and civilization of the river are the roots of the Chinese nation," said Liu Qingzhu, an expert from the Chinese Academy of Social Sciences.

        In Chinese mythology, Da Yu, an ancient hero, tamed the great flood in the river's basin, which reflects the significance of flood control in the region in Chinese history.

        Over the past 2,500 years, the Yellow River has broken its dikes 1,600 times and has made 26 major changes in its course in the lower reaches.

        To harness the silted river, the Communist Party of China set up the Yellow River water conservancy committee in 1946 in the liberated areas. The flood control in the region has made significant improvement after the founding of the People's Republic of China in 1949.

        Dams were built to generate power, and control flood and silt. Large afforestation projects were carried out to reduce soil erosion of the Loess Plateau.

        Due to increasing water demand along with economic development, the Yellow River, which accounts for 2 percent of the country's river runoff, experienced cutoffs from 1972 to 1999.

        Since August 1999, the river has been flowing without cutoff for 20 consecutive years thanks to the unified allocation of water resources, according to the Yellow River Conservancy Commission under the Ministry of Water Resources.

        As an "ecological corridor," the Yellow River, linking the Qinghai-Tibet Plateau, the Loess Plateau and plains in northern China with severe water scarcity, plays an important role in improving the ecological environment, combating desertification and providing water supply with the help of water conservancy projects.

        The country has built more than 400 wetland nature reserves and national parks in the river basin.

        In recent years, China has made intensive efforts to restore the ecology in areas such as the Qilian Mountains and the Qinling Mountains in the Yellow River basin.

        KEY WORDS:
        EXPLORE XINHUANET
        010020070750000000000000011100001384068461
        主站蜘蛛池模板: 91精品系列| 国产乱人伦偷精品视频免下载| 亚洲乱亚洲乱妇50p| 欧美久久一区二区三区| 久久精视频| 午夜精品一区二区三区aa毛片| 久久精品一二三四| 精品videossexfreeohdbbw| 91久久免费| 国产精品一区久久人人爽| 偷拍自中文字av在线| 大bbw大bbw巨大bbb| 狠狠色丁香久久综合频道| 日本伦精品一区二区三区免费| 欧美乱大交xxxxx| 99久久久国产精品免费无卡顿| 日韩亚洲欧美一区二区 | 一区二区三区精品国产| 国产免费第一区| 欧美色综合天天久久| 国产亚洲精品久久久456| 精品91av| 99精品视频免费看| 性少妇freesexvideos高清bbw| 国产在线一卡二卡| 国产精品国产一区二区三区四区| 国产99久久九九精品免费| 精品国产区一区二| 亚洲精品人| 国产在线一卡| 5g影院天天爽入口入口| av素人在线| 在线观看国产91| 国产精品女同一区二区免费站| 国产精品久久久区三区天天噜| 国产一区日韩一区| 亚洲一区二区福利视频| 亚洲欧美日韩一级| 欧美日韩精品在线一区| 国产伦理精品一区二区三区观看体验 | 欧美一区二区综合| 久久精品二| 99精品国产一区二区三区不卡| 国产色婷婷精品综合在线播放| 欧美日韩中文字幕一区二区三区| 色综合久久综合| 亚洲国产欧美一区二区丝袜黑人| 国产免费一区二区三区网站免费| 日韩中文字幕亚洲欧美| 伊人欧美一区| 国产一卡在线| 亚洲精品日本无v一区| 国产精品视频久久久久| 国产精品99一区二区三区| 91国产在线看| 一区精品二区国产| 久久国产欧美日韩精品| 国产精品九九九九九九| 午夜国产一区二区三区四区| 日本福利一区二区| 国产欧美一区二区精品性| 91精品一区| 高清欧美xxxx| 亚洲乱强伦| 日本一区二区免费电影| 国产精品亚洲精品| 欧美激情午夜| 国产精品一品二区三区四区五区| 热re99久久精品国99热蜜月| 九色国产精品入口| 精品国产乱码久久久久久免费| 免费精品一区二区三区视频日产| 91免费国产视频| 久久国产精久久精产国| 国产精品欧美一区二区三区| 欧美日韩一区二区在线播放| 国产精品国产三级国产播12软件| 日韩av一区不卡| 狠狠色噜噜狠狠狠狠69| 亚洲欧洲日韩av| 亚洲精华国产欧美| 国产精品高潮呻吟88av| 福利片一区二区三区| 欧美一区二区性放荡片| 女人被爽到高潮呻吟免费看| 女女百合互慰av| 亚洲国产精品肉丝袜久久| 91精品黄色| 久久久综合亚洲91久久98| 91精品国模一区二区三区| 午夜毛片影院| 夜夜嗨av一区二区三区中文字幕| 久久国产精品麻豆| 亚洲欧美国产中文字幕| 久久国产欧美一区二区免费| 91亚洲欧美强伦三区麻豆| 国产91综合一区在线观看| 999久久久国产精品| 91精品久久久久久综合五月天| 真实的国产乱xxxx在线91| 色一情一乱一乱一区99av白浆| 欧美67sexhd| 亚洲精品卡一| 性欧美激情日韩精品七区| 四虎精品寂寞少妇在线观看| 国产日韩欧美自拍| 97一区二区国产好的精华液| 国产精品久久久av久久久| 91精品色| 亚洲一区欧美| 99re6国产露脸精品视频网站| 91精品国产高清一区二区三区| 一区二区三区日韩精品| 亚洲精品国产一区| xxxx18日本护士高清hd| 国产一级不卡视频| 在线中文字幕一区| 国产精品偷伦一区二区| 国产videosfree性另类| 中文字幕av一区二区三区高| 午夜影院你懂的| 综合在线一区| 欧美精品免费视频| 精品国产一区在线| 国产精品不卡一区二区三区 | 国产一区二区三区大片| 国产精品欧美一区乱破| 欧美一区二区三区爽大粗免费| 国产专区一区二区| 精品国产一区二区在线| 国产视频精品一区二区三区| 亚洲网站久久| 精品国产一区二区三区四区四 | 久久国产麻豆| 亚洲欧洲一区二区| 精品国产18久久久久久依依影院| 午夜免费片| 91精品福利在线| 免费精品一区二区三区视频日产| 国产无遮挡又黄又爽免费网站| 亚洲欧洲一区二区| 99日本精品| 日韩国产精品久久| 国产精品不卡在线| 久久久午夜爽爽一区二区三区三州| 亚洲自偷精品视频自拍| 岛国精品一区二区| 国产一区二区在线观看免费| 99热久久这里只精品国产www | 99国产精品欧美久久久久的广告| 国产欧美日韩一级大片| 国产精品久久久久久久久久久久久久久久久久| 欧美午夜看片在线观看字幕| 99久久国产综合精品女不卡| 久久综合国产伦精品免费| 99国产午夜精品一区二区天美| 日本一区二区高清| 久久精品—区二区三区| 久久99精品久久久秒播| 色偷偷一区二区三区| 99久久国产免费| 亚洲精品日本无v一区| 国产一区二区四区| 黄毛片免费| 欧美精品一区久久| 欧美网站一区二区三区| 日日夜夜亚洲精品| 狠狠色噜噜狠狠狠狠视频| 欧美一区视频观看| 欧美黑人巨大久久久精品一区| 国产午夜伦理片| 日韩精品久久久久久久电影99爱| 国产一级片一区二区| 在线视频不卡一区| 久久精品色欧美aⅴ一区二区| 欧美激情精品久久久久久免费| 久久精品—区二区三区| 国产精品乱战久久久| 国产乱人激情h在线观看| 91黄色免费看| 日本午夜影视| 日韩美一区二区三区| 久久精品一二三四| 国产精品视频久久| 精品a在线| 高清欧美xxxx| 狠狠躁夜夜av| 老太脱裤子让老头玩xxxxx | 国产欧美精品一区二区在线播放| 国产精品国外精品| 国产精品久久免费视频| 日本一区二区三区免费在线| 午夜毛片电影| 久久精品国产亚洲7777| 国产日韩欧美91| 国产视频一区二区三区四区| 国产精品二区一区| 九一国产精品| 狠狠色狠狠色合久久伊人| 国产精品不卡在线| 99久久精品一区字幕狠狠婷婷| 国产真裸无庶纶乱视频| 久久国产欧美一区二区三区精品| 欧美精品一区二区性色| 日本激情视频一区二区三区| 国产午夜精品一区二区三区四区| 日韩一区高清| 99re6国产露脸精品视频网站| 亚洲午夜国产一区99re久久| 一区二区中文字幕在线| 天干天干天啪啪夜爽爽99| 国产伦精品一区二区三区免费下载 | aaaaa国产欧美一区二区| 久久久久国产精品www| 一区二区不卡在线| 欧美日韩一区不卡| 国产精品美女久久久另类人妖| 激情aⅴ欧美一区二区三区| 久久久中精品2020中文| 国产午夜精品一区理论片飘花| 69xx国产| 国产白丝一区二区三区| 国产91一区二区在线观看| 欧美日韩一区不卡| 国产伦理精品一区二区三区观看体验 | 日本一二三不卡| 狠狠色丁香久久综合频道| 国产精品视频一区二区在线观看| 狠狠色成色综合网| 99久久婷婷国产亚洲终合精品| 欧美精品日韩一区| 午夜伦理在线观看| 色噜噜狠狠一区二区| 亚洲国产精品激情综合图片| 国产二区精品视频| 欧美日韩国产欧美| 日韩一区免费在线观看| 97精品国产aⅴ7777| 中文字幕二区在线观看| 国内久久久| 97精品国产aⅴ7777| 久久免费视频99| 又黄又爽又刺激久久久久亚洲精品| 草逼视频网站| 国产不卡一二三区| 国产午夜精品一区二区三区视频|