国内精品一区二区三区最新_不卡一区二区在线_另类重口100页在线播放_精品中文字幕一区在线

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


Hot Links
China Development Gateway
Chinese Embassies


China's Forest Resources Face Four Challenges

According to the latest forestry resources survey conducted by the State Forestry Administration, the forest coverage rate in China has increased from 8.6 percent in the early 1950s to the current 16.55 percent and its forest storage amount has increased from 10.8 billion to 11.27 billion cubic meters.

 

However, the country’s forest development is still facing four major challenges – deficiency in total amount, unbalanced structures, contradiction between demand and supply, and severe devastation.

 

Not only the total amount of forest resources in China is deficient, the function of forest ecology has not been given full play either. Only 159 million hectares of land out of 263 million hectares designated for forestry are covered by trees, accounting for 60.37 percent; storing of standing forests per hectare is only 78.06 cubic meters on average, and for artificial forests, the figure stands at just 34.76 cubic meters; canopy density of standing forests is 0.54 on average, of which some 20 percent standing forests has a canopy density of 0.2-0.3. All of the above statistics reflect that China’s forests have not yet formed a stable eco-system, posing a difficulty for terrestrial eco-system to function.

 

In addition, the forest structures, involving distribution, age of stand, categories, and varieties, are seriously unbalanced. Forest coverage rate of 11 provinces in eastern China’s coastal area is 26.59 percent, while the figure in western China’s 11 provinces is 9.06 percent, of which, it is only 3.34 percent in the five northwestern provinces; in respect to age of stand, 71.1 percent of standing forests is young and middle-aged; compared with timber forests, the proportion of protective forests is quite small, which has limited the forest industry’s diversified benefits; and the tree varieties are monotonous, with masson pines, China firs, and poplars accounting for about 58.8 percent of the national artificial forests.

 

Increasing social demands put forestry management and administration under great pressure. On one hand, the contradiction between supply and demand of forest products becomes more and more serious, with natural supply provided by the current forest recourses satisfying only 40 percent of actual demand; on the other hand, the demand for more diversified benefits out of forests is increasing too, along with the development of society, economy and environmental protection.

 

The situation of forest resources devastation is still severe. In 2002, relevant forestry department carried out nationwide inspection tours to check the timber-cutting quota in 34 counties and to examine the requisition of forestlands in 202 counties. The results showed that 17.6 percent of the inspected units conducted exceeding cuts of timbers and 12.5 percent had illegal requisition of forestlands; every year, 562,000 hectares of forestlands were reversed to non-forestlands on average. Meanwhile, non-licensed timber transportation and illegal trade and production of timber form another threat to China’s forest resources.

 

(China.org.cn by Zhang Tingting, October 23, 2003)

Lethal Pests Damage Forests in Large Area
Over 95 Forest Resources in China Under Strict Surveillance
Progress Achieved in Forest Program
Forestry Protection Fails to Protect
State Outlines Forestry Development
China Establishes over 1,700 Protected Areas
Land Reclaiming Causes Tree Line to Recede
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
国内精品一区二区三区最新_不卡一区二区在线_另类重口100页在线播放_精品中文字幕一区在线
夜夜精品浪潮av一区二区三区| 中文一区二区完整视频在线观看| 欧美日韩国产综合视频在线观看| 色综合久久久久| 91高清视频免费看| 欧美精品日日鲁夜夜添| 日韩免费看的电影| 欧美激情一区二区| 亚洲在线中文字幕| 老鸭窝一区二区久久精品| 久久爱另类一区二区小说| 国产精品一区二区免费不卡| 高清久久久久久| 欧美性色欧美a在线播放| 欧美久久一二三四区| 久久人人超碰精品| 亚洲精品第一国产综合野| 日韩av在线发布| 成人国产精品免费网站| 精品视频1区2区| 国产午夜一区二区三区| 亚洲精品videosex极品| 国产风韵犹存在线视精品| www.激情成人| 日韩区在线观看| 亚洲婷婷综合久久一本伊一区| 亚洲电影你懂得| 国产69精品久久777的优势| 在线观看一区日韩| 久久精品一区四区| 午夜久久久影院| av成人免费在线| 日韩一区二区电影| 伊人婷婷欧美激情| 国产福利一区在线| 欧美日韩dvd在线观看| 日韩精品一区二区三区视频| 激情综合一区二区三区| 日韩欧美一级精品久久| 亚洲欧美另类久久久精品| 成人免费福利片| 中文字幕在线免费不卡| 成人免费视频视频在线观看免费| 欧美精品一卡二卡| 亚洲国产精品激情在线观看| 国产福利一区在线| 欧美丝袜自拍制服另类| 欧洲国内综合视频| 91视频.com| 亚洲欧美日韩人成在线播放| 亚洲猫色日本管| 中文字幕亚洲区| 91国偷自产一区二区开放时间| 亚洲一区二区三区爽爽爽爽爽| 亚洲国产三级在线| 成人综合婷婷国产精品久久免费| 欧美一区二区三区喷汁尤物| 中文字幕中文字幕一区| 国产一区二区看久久| 日韩免费看网站| 另类小说一区二区三区| 日韩三级高清在线| 蜜臀av性久久久久蜜臀aⅴ四虎| 欧美视频在线不卡| 伊人性伊人情综合网| 91一区二区三区在线观看| 国产精品久线观看视频| 成人免费视频国产在线观看| 日本一区二区视频在线| 国产成a人无v码亚洲福利| 久久久久高清精品| 国产成人免费av在线| 国产网站一区二区| 成人在线综合网站| 亚洲靠逼com| 欧美日韩mp4| 免费人成黄页网站在线一区二区 | 日韩综合小视频| 91精品国产色综合久久久蜜香臀| 视频一区二区三区中文字幕| 777久久久精品| 韩国v欧美v日本v亚洲v| 久久精品一区二区三区不卡| 成人小视频在线观看| 亚洲美女偷拍久久| 欧美日韩国产在线播放网站| 免播放器亚洲一区| 欧美极品xxx| 欧美专区在线观看一区| 麻豆专区一区二区三区四区五区| 精品女同一区二区| kk眼镜猥琐国模调教系列一区二区| 亚洲男人的天堂网| 欧美一级电影网站| 成人免费视频一区| 亚洲bdsm女犯bdsm网站| 久久久久久亚洲综合| 色久综合一二码| 精品一区二区日韩| 亚洲精品免费视频| www国产成人| 欧亚洲嫩模精品一区三区| 蜜桃视频一区二区| 亚洲视频在线一区二区| 欧美大片顶级少妇| 91福利视频网站| 国产伦精品一区二区三区免费| 亚洲激情图片qvod| 国产视频一区不卡| 91精品国产91久久综合桃花| 成人免费毛片a| 男人的天堂久久精品| 自拍偷拍亚洲综合| 久久亚洲私人国产精品va媚药| 在线欧美日韩国产| 成人免费看的视频| 国产老妇另类xxxxx| 天天综合网 天天综合色| 中日韩av电影| 久久综合中文字幕| 91精品啪在线观看国产60岁| 北条麻妃国产九九精品视频| 久久国产免费看| 天天做天天摸天天爽国产一区 | 国产精品色在线观看| 欧美肥胖老妇做爰| 在线精品国精品国产尤物884a| 粉嫩av一区二区三区在线播放| 青青草成人在线观看| 亚洲三级在线免费观看| 中文字幕乱码日本亚洲一区二区 | 国产精品66部| 久久国产综合精品| 久久疯狂做爰流白浆xx| 偷拍日韩校园综合在线| 亚洲一区二区三区中文字幕在线| 久久久精品一品道一区| 欧美电视剧在线观看完整版| 欧美日韩国产电影| 91精品国产综合久久精品图片 | 中文字幕日韩欧美一区二区三区| 久久蜜桃av一区精品变态类天堂| 91精品蜜臀在线一区尤物| 欧美高清性hdvideosex| 欧美日本乱大交xxxxx| 欧美日韩国产欧美日美国产精品| 欧美网站一区二区| 欧美日韩欧美一区二区| 欧美日韩成人一区| 日韩欧美在线123| 精品99999| 中文字幕欧美区| 亚洲日本丝袜连裤袜办公室| 亚洲一区免费视频| 日韩经典中文字幕一区| 裸体在线国模精品偷拍| 激情综合网天天干| 成人深夜在线观看| 在线免费观看一区| 日韩一区二区在线看片| 欧美哺乳videos| 国产嫩草影院久久久久| 亚洲免费看黄网站| 日日骚欧美日韩| 国产精品91一区二区| 99r国产精品| 欧美日韩精品一区二区天天拍小说| 欧美日韩国产美女| 久久婷婷综合激情| 日韩毛片视频在线看| 午夜欧美视频在线观看| 国产一区二区伦理| 欧洲一区二区三区免费视频| 91精品麻豆日日躁夜夜躁| 久久久久久日产精品| 一区二区在线观看免费视频播放| 日本在线不卡视频| eeuss影院一区二区三区 | 国产一二三精品| 在线观看国产91| 国产亚洲一区二区三区四区| 亚洲三级在线免费| 激情久久五月天| 色哟哟精品一区| 久久这里只有精品视频网| 亚洲黄色av一区| 国产一区二区影院| 欧美日韩国产一二三| 亚洲国产成人一区二区三区| 午夜精品影院在线观看| 成人免费视频视频在线观看免费| 91精品麻豆日日躁夜夜躁| 中文字幕五月欧美| 国内精品视频666| 91精选在线观看| 亚洲一区精品在线| 91视视频在线观看入口直接观看www | 北条麻妃国产九九精品视频| 日韩女同互慰一区二区| 亚洲国产aⅴ成人精品无吗|