首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
In recent years foreign scholars have produced major studies of China's environmental history, or its environment and history. Most seem to focus on various periods and regions. Such an approach to China's environmental history is understandable and reasonable, since writing a synthesis of this history is no easy task: China has both a variety of ecosystems ranging from alpine mountains to tropical forests, and a long history with the longest unbroken written record of all the world's civilizations. But Robert B. Marks,  相似文献   

18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号