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
Water Erosion in Zhangjiakou City Treated
Adjust font size:
Zhangjiakou City, a major water source of the Chinese capital Beijing, has made painstaking efforts to protect local eco-environment, with priority given to prevention of water erosion.

Officials say they have carried out a comprehensive treatment program in an area of 6,187 square kilometers and planted trees in380,000 hectares of land over the last 20 years.

The city's green cover rate has risen by 10 percent thanks to these measures, and the water quality in Guanting Reservoir, a major source of drinking water for Beijing, is steadily improving, an official said Monday.

Statistics show that the quantity of sediment entering the reservoir annually has dwindled from the 8.99 million tons in 1983to 3.11 million tons today.

Sandwiched between plains in the north and hills in the south, the city stands as an ecological barrier for Beijing, but it used to suffer a severe water erosion. In the worst case, more than 25,000 square kilometers of land was eroded by water, about 67 percent of the city's total.

Since the land treatment program was started in 1983, the local government has invented various ways including the lease and auction of barren land to accelerate the work.

(Xinhua News Agency April 28, 2003)

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

Related Stories
China Wins Int'l Recognition for Soil Conservation
More Investment in Flood, Erosion Control in East China Province
North China City Suffers Fifth Consecutive Serious Spring Drought
 
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

    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