自然资源学报 ›› 2002, Vol. 17 ›› Issue (4): 438-443.doi: 10.11849/zrzyxb.2002.04.007

• 论文 • 上一篇    下一篇

黄土高原退耕还林(草)紧迫性地域分级论证

彭文英1,2, 张科利1, 李双才1   

  1. 1. 北京师范大学资源与环境科学系,北京100875;
    2. 内江师范学院,四川内江641002
  • 收稿日期:2001-10-12 修回日期:2002-03-14 出版日期:2002-08-25 发布日期:2002-08-25
  • 作者简介:彭文英(1967~),女,四川乐山人,讲师,在读博士研究生,主要从事区域资源开发、土壤侵蚀 与水土保持研究。E-mail:wenyingsi@sohu.com
  • 基金资助:

    国家重点基础研究发展规划项目(G1999043605);国家杰出青年基金项目(49725103)。

Studies of the regional classification about returning farmland to forests or grassland on the Loess Plateau

PENG Wen-ying1,2, ZHANG Ke-li1, LI Shuang-cai1   

  1. 1. Department of Resources and Environment Science,Beijing Normal University,Beijing 100875,China;
    2. Neijiang Normal College,Neijiang641002,China
  • Received:2001-10-12 Revised:2002-03-14 Online:2002-08-25 Published:2002-08-25

摘要: 退耕还林还草是治理黄土高原水土流失的有效措施。科学分析现有土地及其利用结构是退耕还林还草战略实施的重要保证。论文应用科学抽样数据资料,分析了黄土高原地区土地、耕地的坡度构成及其土地垦殖率等的区域差异特征,提出了黄土高原地区退耕还林(草)紧迫性地域分级。其结果可以为根据有限的资金,分区分批进行退耕,最大限度地保证粮食安全,并实现区域生态重建,为合理实施退耕提供科学依据。

关键词: 黄土高原, 退耕还林(草), 水土保持

Abstract: The Loess Plateau is famous for its severe water and soil loss in the world.An effective measure to control water and soil loss is to return farmland into forests or grassland.Scientific investigation and analysis of land use structure is key to return farmland into forests or grassland.Based on scientific sample data,the gradient composition of farmland,the ratio of land reclamation under different slopes and their regional differences were analyzed.Meanwhile,the regional classification about the gradation of returning farmland to forests or grassland on the Loess Plateau was discussed in this paper.The conclusions could help government in determining the order and the areas of returning farmland to forests or grassland,and contribute greatly to assure not only food supplies but also regional eco-environment al rehabilitation with limited funds.

Key words: the Loess Plateau, returning farmland to forests or grassland, soil and water conser-vation