Journal of Geographical Sciences ›› 2005, Vol. 15 ›› Issue (1): 53-60.doi: 10.1360/gs050107

• Climate and Environmental Change • Previous Articles     Next Articles

A comparison between different ecological de-farming modes in the loess hilly-gully region in China

XU Yong, GUO Tengyun, YANG Guoan   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2004-03-22 Revised:2004-11-09 Online:2005-03-25 Published:2005-03-25
  • Supported by:

    National Natural Science Foundation of China, No.40371051; Knowledge Innovation Project of Chinese Academy of Sciences, No.KZCX1-6-2-6

Abstract:

The eco-environmental restoration has been a chief task of the western development strategies carried out by the central and local governments of China since the late 1990s, and the ecological de-farming has been regarded as a powerful measure for the ecological restoration in the Loess Plateau and the upper reaches of the Yangtze River. "Relieving and de-farming" (RD) and "rebuilding terrace and de-farming" (RTD) are two more mature ones among various de-farming modes. Taking the loess hilly-gully region as a case, this paper summarized the basic characteristics of RD and RTD modes, calculated the sizes of de-farming slope farmland, rebuilt terraces, enlarged garden plots and restored vegetation, and compared the differences of two modes in terms of de-farming area, ecological reestablishment index, investment demand amount and benefits. The results showed that RTD mode has many advantages, including suitable investment, sufficient grain supply and great benefits, and will be the best ecological reestablishment mode in the loess hilly-gully region, and RD mode which is being carried out in this region should be replaced by RTD mode as soon as possible.

Key words: ecological de-farming mode, comparison, the loess hilly-gully region