PROGRESS IN GEOGRAPHY ›› 2004, Vol. 23 ›› Issue (5): 43-55.doi: 10.11820/dlkxjz.2004.05.006

• Original Articles • Previous Articles     Next Articles

The Preliminarily Study on the Ecological Environment Effects of Land-use Change in Red Earth Hilly Area in Southeast China

YANG Fengting, LIU Jiyuan, ZHUANG Dafang, HU Yunfeng   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2004-02-01 Revised:2004-06-01 Online:2004-09-25 Published:2004-09-25

Abstract:

In recent years, ecological environment problems caused by unreasonable land use become more and more serious, and the ecological environment effects of land use arouse general concerns. Benefiting from southeast monsoon, red earth hilly area in China has excellent water and heat conditions, and land use here changes rapidly these years. Unreasonable land use, however, results in serious land degradation, which reduces the land productivity. Furthermore, it has deep impacts on water resource and global carbon cycle. So studies on the ecological environment effects of land use in this area are not only important to the sustainable development of agriculture, but also helpful in understanding the role of this area playing in global changes. In this paper, we summarize the development and fruits of related researches, and find that most of the researches focus on land degradation and its ecological restoration, which has close relation with land productivity, while researches on the impacts of land use on global carbon cycle are seldom. In addition, there’s a lack of uniform indexes for evaluating soil quality, and the evaluating methods to integrate soil properties with soil management practices are also short. Finally, studies we should pay more attention to are pointed out.

Key words: ecological environment effects, land-use change, red earth hilly area