亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

Tools: Save | Print | " target="_blank" class="style1">E-mail | Most Read
Erosion Controlled in Western Region
Adjust font size:
The Ningxia Hui Autonomous Region, an arid area in northwest China, has curtailed erosion over an area of 4,144 square kilometers in the past four years.

Of the total area, 301,300 hectares were planted in trees and grass and 98,000 hectares were used for dry farming.

Soil erosion remains the world's biggest environmental problem,threatening both developed and developing countries.

Located on the Loess Plateau, Ningxia, with China's largest Muslim population, has a fragile ecology. Soil erosion affects 75 percent of the region's land, where more than 100 million tons of soil and sand are washed into the Yellow River each year.

Since 1998, the regional government has urged farmers in southern Ningxia to plant trees and build dry farming plots on eroded lands, while banning herding in central and northern parts of Ningxia to maintain the ecological balance.

Ningxia has controlled erosion on 10,000 square kilometers, reducing the amount of sand washed into the Yellow River by 40 million tons annually. The acreage of improved lands in each of the past four years topped 1,000 square kilometers.

(Xinhua News Agency July 12, 2002)

Tools: Save | Print | " target="_blank" class="style1">E-mail | Most Read

Related Stories
New Technology to Help Curb Black Earth Erosion
Fight to Be Widened Against Soil Erosion
Xinjiang Battles Soil Erosion
First National Ecological Survey Proposed
Some Figures About China's West
Soil Erosion Control Stepped Up in Tibet
China Wins Int'l Recognition for Soil Conservation
Foreign Ecologist Praises China's Environmental Protection
Jialing River to Become 2nd Yellow River, Expert Warns
 
SiteMap | About Us | RSS | Newsletter | Feedback

Copyright ? China.org.cn. All Rights Reserved E-mail: webmaster@china.org.cn Tel: 86-10-88828000 京ICP證 040089號(hào)

    1. <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>
      <thead id="556nl"></thead>

      1. <em id="556nl"><tt id="556nl"></tt></em>
        <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>

        <ul id="556nl"><small id="556nl"></small></ul>
        1. <thead id="556nl"></thead>

          亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线 人妻无码久久影视 日韩久久久久久久久久久久 精品国产香蕉伊思人在线 无码国产手机在线a√片无灬 91在线视频无码