男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

English 中文網 漫畫網 愛新聞iNews 翻譯論壇
中國網站品牌欄目(頻道)
當前位置: Language Tips> Audio & Video> 新聞播報> Normal Speed News VOA常速

Winds still 'come sweepin' down the plain'

[ 2010-08-20 13:46]     字號 [] [] []  
免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

Get Flash Player

In 1935, during the heart of the Great Depression, whole sections of the American Midwest suffered through a terrible drought that produced monstrous dust storms. They sucked up what little topsoil existed on prairie farms and blew away the livelihood of thousands of small farmers with it.

One day that spring, a government soil surveyor named Hugh Hammond Bennett testified before Congress, pleading for creation of a federal service that would teach farmers how to plant the grasses that would save their land.

As he spoke, a thick cloud of dust howled by the window, almost blotting out the sun. It had blown all the way from the Great Plains, more than 3,000 kilometers away.

There, gentlemen, Hugh Bennett told the congressional committee, goes Oklahoma.

That certainly made his point, and the Soil Conservation Service was born. It began to plant grasses and crops that anchor the soil and keep it from blowing or washing away. Today, 20 publicly owned National Grasslands spread over 1.5 million hectares stand as the legacy of that effort.

They are generally marginal lands - their soil too poor for cultivation. Scars from abuse by plowing or overgrazing remain. Where too many cattle trampled the earth and turned the sod to dust, useless yucca and sagebrush have replaced the grass.

Fewer than 50 centimeters of rain a year fall on much of the western plains, so dust still blows. But the U.S. Forest Service, which oversees the grasslands, encourages managed grazing on these public lands, for which ranchers pay fees that help pay for rural roads and schools.

The Forest Service calls this living carpet of grass an ecosystem. Despite new and managed growth on the Plains, one still finds the ruts of the tall wagons called prairie schooners that, a century and a half ago, brought modern civilization, with its blessings and curses, to these seas of grass.

overgrazing: 過度放牧

(來源:VOA 編輯:蔡姍姍)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
 

關注和訂閱

人氣排行

翻譯服務

中國日報網翻譯工作室

我們提供:媒體、文化、財經法律等專業領域的中英互譯服務
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 青岛市| 碌曲县| 石楼县| 定边县| 汉中市| 隆回县| 麟游县| 乐陵市| 铜鼓县| 普定县| 南丰县| 汕头市| 内丘县| 高阳县| 德清县| 婺源县| 湘潭县| 安义县| 安阳市| 醴陵市| 祁东县| 铜鼓县| 龙江县| 桦川县| 依安县| 革吉县| 平江县| 鄂托克前旗| 丰顺县| 淮阳县| 龙游县| 柯坪县| 彭山县| 平潭县| 藁城市| 盐边县| 鄂尔多斯市| 嵩明县| 扶余县| 营山县| 成安县|