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

        Profile: Chinese botanist opens plant "bank" in desert

        Source: Xinhua| 2019-02-12 19:41:51|Editor: mmm
        Video PlayerClose

        URUMQI, Feb. 12 (Xinhua) -- Stunning desert, sweet grapes and scorching heat make Turpan an ideal place for curious travelers and even automakers conducting heat exposure experiments.

        However, botanist Pan Borong came to the city in northwest China's Xinjiang Uygur Autonomous Region for a special purpose -- opening a plant "bank" in the desert.

        "If a plant can survive in extreme conditions such as temperature as high as 50 degrees Celsius, frequent sandstorms and drought, it can survive anywhere," said Pan, a retired researcher from the Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences.

        Pan and his colleagues came to Turpan in 1972 and were assigned to help five local farms that were frequently plagued by gales and sandstorms to fight desertification.

        "It was an arduous start," he recalled.

        To buy rice, edible oil and vegetables, researchers had to take a 20-km bike trip to the nearest county, taking turns cooking.

        They lived in shabby houses with windows made of plastic and relied on kerosene lamps at night. In the spring, heavy winds would tear apart the windows, leaving dust and sand everywhere.

        Despite the difficulties, researchers started introducing sand-fixation plants to Turpan. A dozen of them such as rose willows and desert poplar proved adaptable to the local climate and soil conditions.

        Based on this vegetation, they decided to set up Xinjiang's first botanical garden in 1975 and named it the Turpan Eremophytes Botanic Garden.

        "The arid desert area accounts for a quarter of China's land. We want to collect and introduce various drought-resistant plants in the botanical garden for further research," Pan said. "It's just like a 'bank of plants'."

        To collect the plants, Pan and his colleagues ventured into distant basins and mountains. Their footprints were even left in foreign areas such as Russia, central Asian countries, Libya and Syria.

        It is very likely to encounter dangers in the vast wilderness.

        Sometimes to find a plant, they had to take bus, ride bikes and hop on a donkey cart to reach remote destinations. In some untraversed areas, Pan's only method to reach plants to deposit in his "bank" was to walk.

        In October of 1980, Pan broke his cervical vertebra in an accident during an expedition to Kazakh Autonomous Prefecture of Yili. He stayed in the hospital for more than nine months and underwent two operations.

        His decades-long endeavor has paid off. The botanic garden covers an area as large as 210 standard football fields. It is home to more than 700 species of desert plants, including nearly 100 rare and endangered species of desert plants.

        China has been conducting afforestation and forest conservation programs in Xinjiang for decades to fight desertification and over-grazing in the region.

        "The botanical garden is significant to the sustainable development of China's desert areas," said botanist Hong Deyuan, an academician of the Chinese Academy of Sciences.

        Though Pan has retired, he has not stopped researching.

        The plants from his "bank" have helped restore and reconstruct the ecosystem in the middle and lower reaches of the Tarim River, China's longest inland river, and in several polluted areas surrounding oilfields.

        He and his colleagues have been bringing the desert plants and research results to broader domains. Twenty tonnes of sand-fixation plant seeds and more than 3 million saplings have been sent to other areas in and outside Xinjiang in northwest China.

        "We can deposit abundant desert plants in the 'bank' and take out the 'savings' when needed," Pan said.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001378159471
        主站蜘蛛池模板: 日本一二三四区视频| 精品国产一区二| 亚洲va国产2019| 欧美一区二区性放荡片| 蜜臀久久99精品久久久| 91久久久爱一区二区三区| 搡少妇在线视频中文字幕| 高清在线一区二区| 亚洲区在线| 国产一区二区三区伦理| 国内视频一区二区三区| 国产精品一二三区视频网站| 玖玖精品国产| 国产欧美日韩亚洲另类第一第二页| 亚洲国产精品91| 久久久久亚洲精品视频| 国产精品一区二区三| 欧美亚洲视频一区二区| 少妇自拍一区| 96国产精品视频| 欧美精品一区二区三区视频| 欧美日韩国产一区二区三区在线观看| 亚洲国产精品网站| 99久久免费精品国产免费高清| 欧美日韩三区| 久草精品一区| 国产精品一二三区视频出来一| 亚洲精品主播| 午夜电影网一区| 高清在线一区二区| 中文字幕精品一区二区三区在线| 国产福利一区在线观看| 欧美激情精品一区| 99国产超薄丝袜足j在线观看| 亚洲国产精品一区在线| 国产亚洲精品久久久456| 九一国产精品| 国产一区二区三级| 99精品国产99久久久久久97| 国产69精品久久久久777糖心| 粉嫩久久久久久久极品| 国产欧美日韩亚洲另类第一第二页| 亚洲精品久久久久中文字幕欢迎你 | 久久人人精品| 一区二区在线视频免费观看| xxxx在线视频| 国产色婷婷精品综合在线播放| 99日韩精品视频| 国产精品99999999| 亚洲福利视频二区| 亚洲国产精品激情综合图片| 伊人久久婷婷色综合98网| 国产97免费视频| 26uuu亚洲国产精品| 美女张开腿黄网站免费| 93精品国产乱码久久久| 久久午夜鲁丝片午夜精品| 国产精品三级久久久久久电影| 欧美一区二区久久久| 欧美精品五区| 少妇高清精品毛片在线视频| 国产日韩欧美三级| 手机看片国产一区| 国产床戏无遮挡免费观看网站 | 国产精品视频十区| 日本一区二区欧美| 欧美精品乱码视频一二专区 | 综合欧美一区二区三区| 日韩一级片在线免费观看| 99久久国产综合精品女不卡| 国产高清不卡一区| 国产精品69av| 久久福利视频网| 国产精品久久久久久久妇女| 国产精品一区二区毛茸茸| 日本道欧美一区二区aaaa| 国产原创一区二区| 亚洲国产一二区| 午夜肉伦伦| 亚洲精品主播| 欧美日韩一区不卡| 国产大片黄在线观看私人影院| 中文字幕一区二区三区又粗| 国产精品自拍不卡| 精品国产一级| 国产麻豆91视频| www.久久精品视频| 午夜影院毛片| 国产精品二区一区| 欧美一区二区三区在线视频播放| 国产精品区一区二区三| 日本高清不卡二区| 强制中出し~大桥未久10在线播放| 亚洲精品91久久久久久| 国产不卡网站| 免费a一毛片| 农村妇女精品一区二区| 国产精品二区一区二区aⅴ| 丝袜美腿诱惑一区二区| 国产一区二区视频免费在线观看 | 国产乱xxxxx国语对白| 91精品国产一区二区三区| 国产一区二区视频免费观看| 艳妇荡乳欲伦2| 亚州精品中文| 日日狠狠久久8888偷色| 91国产一区二区| 亚洲精品久久久久www| 国产精品麻豆自拍| 999久久国精品免费观看网站| 欧美性猛交xxxxxⅹxx88| 狠狠色噜噜狠狠狠狠777| 强制中出し~大桥未久10| 四虎影视亚洲精品国产原创优播| 国产69精品久久久久777| 国产精品一区二区三区在线看| 亚洲三区二区一区| 国产偷亚洲偷欧美偷精品| 中文字幕一区二区三区免费| 在线观看v国产乱人精品一区二区| 亲子乱子伦xxxx| 午夜电影三级| 欧美午夜精品一区二区三区| 久久久精品99久久精品36亚| 亚洲网站久久| 国内精品久久久久久久星辰影视| 日韩欧美国产第一页| 国产麻豆91欧美一区二区| 国产在线不卡一| 少妇在线看www| 97涩国一产精品久久久久久久| 奇米色欧美一区二区三区| 久久福利视频网| 午夜激情免费电影| 96国产精品| 夜夜夜夜曰天天天天拍国产| 久久精品视频中文字幕| 日韩精品一区二区中文字幕| 亚洲欧美日韩另类精品一区二区三区| 午夜影院黄色片| 一区二区在线国产| 午夜影院一级| 日韩亚洲精品在线| 午夜影院黄色片| 国产精品一区在线播放| 国产一区二区午夜| 国产极品美女高潮无套久久久| 国产日韩一区在线| 国产精品视频久久久久| 国产精品国产三级国产专区52| 精品免费久久久久久久苍| 国产日韩欧美精品一区二区| 91理论片午午伦夜理片久久| 国产日韩欧美精品一区二区| 国产精品高潮在线| 香港三日本8a三级少妇三级99| 亚洲欧美一二三| 国产午夜精品一区二区三区在线观看 | 99精品一级欧美片免费播放| 年轻bbwbbw高潮| 午夜爱爱电影| 日韩av在线中文| 日本一区二区在线电影| 日韩一级在线视频| 国产在线精品区| 日本一区午夜艳熟免费| 久久精品国产久精国产| 国产91九色在线播放| 88国产精品欧美一区二区三区三| 欧美三级午夜理伦三级老人| 日韩美一区二区三区| 国产日本欧美一区二区三区| 97一区二区国产好的精华液| 亚日韩精品| 亚洲乱小说| 欧美人妖一区二区三区| 国产91一区二区在线观看| 精品国产一区二区三区四区vr| 国产日韩欧美一区二区在线观看| 91精品啪在线观看国产| 日韩亚洲精品视频| 99久久精品国| 国产精品高潮在线| 国产aⅴ一区二区| 日韩一级视频在线| 一区二区在线不卡| 欧美日韩国产精品一区二区亚洲| 狠狠色噜噜狠狠狠狠米奇7777| 狠狠色噜噜狠狠狠色综合| 久久天堂国产香蕉三区| 欧美一区二区精品久久911 | 午夜天堂在线| 久久国产精品麻豆| 欧美一区二区三区国产精品| 午夜看片网址| 狠狠插狠狠插| 97精品国产97久久久久久粉红| 国产一区二区免费在线| 国产欧美一区二区三区精品观看| 午夜伦理片在线观看| 麻豆精品久久久| 国产91精品一区| 欧美精选一区二区三区| 午夜叫声理论片人人影院| 国产v亚洲v日韩v欧美v片| 国产精品九九九九九九| 午夜叫声理论片人人影院| 国产精品一区二| 中文字幕精品一区二区三区在线| 色噜噜狠狠色综合中文字幕| 色婷婷精品久久二区二区蜜臂av| 日本亚洲国产精品| 亚洲精品国产suv| 国产在线一区不卡| 97久久精品人人做人人爽50路| 中文字幕区一区二| 国产精品久久久久免费a∨大胸| 在线观看v国产乱人精品一区二区| 中文字幕欧美一区二区三区| 国内久久精品视频| xx性欧美hd| 久久久久国产亚洲| 国产第一区二区三区| 欧美日韩一级在线观看| 国产精品19乱码一区二区三区 | 日本一区二区三区免费播放| 午夜av资源| 国内揄拍国产精品| 日日夜夜一区二区| 国产一区二区视频免费观看| 亚洲国产精品激情综合图片| 国产香蕉97碰碰久久人人| 国产精品麻豆一区二区三区| 国产精品不卡一区二区三区| 亚洲第一天堂无码专区| 国产无套精品一区二区| 日韩区欧美久久久无人区| 狠狠色噜噜狠狠狠狠色吗综合 | 国产欧美日韩一级| 午夜黄色网址| 国产原创一区二区 | 国产一区二区二| 久久夜色精品亚洲噜噜国产mv| 久久99久国产精品黄毛片入口 | 亚洲国产精品女主播| 国产片91|