404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
科技日报讯 (记者李大庆)我国土地变化的总体情况如何?中科院给出了答案:至2010年我国的耕地面积依然比上世纪80年代还要多,但优质耕地面积明显减少。
6月12日,中科院发布了《中国可持续发展遥感监测报告(2016)》。报告说,2010年中国土地利用面积从大到小依次为:草地、林地、未利用土地、耕地、水域和城乡工矿居民用地。在遥感监测的20多年里,我国土地中有266193.86平方公里改变了原有利用属性,占遥感监测土地总面积的2.80%。
报告指出,遥感监测20多年期间,我国耕地变化最显著,其动态变化面积高于所有其他土地类型;耕地面积先增后减,呈现明显的阶段性特征,2000年面积最大。2010年耕地21.36亿亩,依然多于20世纪80年代。其主要原因是全国新开发的耕地面积在增加,但是质量较好的传统耕地、良田在减少。在6类土地中,城乡工矿居民用地变化幅度最大,2010年扩大为80年代末的1.32倍,其中城镇用地扩展为1.76倍,农村居民点扩展为1.10倍。
新发布的报告围绕我国的土地利用、植被状况、典型城市群区域大气状况、粮食生产形势、水资源与水环境等热点问题展开论述。该报告主编、中科院遥感地球所研究员顾行发说,以绿皮书的形式将遥感监测成果出版,这是中国遥感界的第一次尝试。未来,遥感监测绿皮书将每年出一本。
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
相关阅读
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
加载更多>>
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China
404 Not Found
404 Not Found
Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!
URL: |
http://3g.china.com:8080/act/news/11155042/20170614/30729786.html |
Server: |
cms-8-252 |
Date: |
2024/11/28 23:00:52 |
Powered by China
China