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

--- SEARCH ---
WEATHER
CHINA
INTERNATIONAL
BUSINESS
CULTURE
GOVERNMENT
SCI-TECH
ENVIRONMENT
LIFE
PEOPLE
TRAVEL
THIS WEEK
Learning Chinese
Learn to Cook Chinese Dishes
Exchange Rates


Hot Links
China Development Gateway
Chinese Embassies

Improved Eucalyptus May Boost Paper Industry
Australia's national tree is expected to become a new choice to ease the soaring pulp needs of China's paper industry.

Eucalyptus, a fast-growing and high-yield subtropical species mainly found in Australia, could provide more cost-effective pulp material for China's paper manufacturing if planted in sufficient quantity.

China's forestry scientists have successfully improved eucalyptus varieties and created a forest dubbed Asia's largest "eucalyptus gene bank" in southern China's Zhuang Autonomous Region, where the trees are widely planted.

"Since 1982, we have introduced over 200 seed sources of 174 varieties on the basis of upgrading and yield tests. A eucalyptus gene base worth popularizing in China was also established, which covers 100-plus varieties and 900-plus clones," said Xiang Dongyun, eucalyptus expert and vice president of the local provincial Academy of Forestry.

New varieties grown at the base are generally "ultra fast-growing eucalyptus." These trees can be felled six years after planting with a yield of more than 60 cubic meters per ha. per year, according to Xiang.

China, with a per capita forest coverage rate only one fifth of the world's average, is now making comprehensive conservation efforts including protecting natural forest, turning farmland into forest and banning commercial lumbering.

(Xinhua News Agency January 14, 2003)

 

Expert Offers New Theory on the Invention of Paper
Paper Industry Calls for Overseas Investment
Chinese Firm to Plant Eucalyptus for Paper Making in Cambodia
Finnish Firm Launches Paper Project
Print This Page
|
Email This Page
About Us SiteMap Feedback
Copyright © China Internet Information Center. All Rights Reserved
E-mail: webmaster@china.org.cn Tel: 86-10-68326688
    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