中国地理科学 ›› 2017, Vol. 27 ›› Issue (5): 772-783.doi: 10.1007/s11769-017-0907-5

• 论文 • 上一篇    下一篇

Evaluation of Land Reclamation and Implications of Ecological Restoration for Agro-pastoral Ecotone:Case Study of Horqin Left Back Banner in China

ZHOU Jian1, ZHANG Fengrong2, XU Yan2, GAO Yang2, XIE Zhen2   

  1. 1. Center for Land Resources Research in Northwest China, Shaanxi Normal University, Xi'an 710119, China;
    2. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
  • 收稿日期:2017-02-28 修回日期:2017-06-22 出版日期:2017-10-27 发布日期:2017-09-07
  • 通讯作者: XU Yan,E-mail:xyan@cau.edu.cn E-mail:xyan@cau.edu.cn
  • 基金资助:

    Under the auspices of the Special Scientific Research of the Ministry of Land and Resources of China (No.201411009)

Evaluation of Land Reclamation and Implications of Ecological Restoration for Agro-pastoral Ecotone:Case Study of Horqin Left Back Banner in China

ZHOU Jian1, ZHANG Fengrong2, XU Yan2, GAO Yang2, XIE Zhen2   

  1. 1. Center for Land Resources Research in Northwest China, Shaanxi Normal University, Xi'an 710119, China;
    2. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
  • Received:2017-02-28 Revised:2017-06-22 Online:2017-10-27 Published:2017-09-07
  • Contact: XU Yan,E-mail:xyan@cau.edu.cn E-mail:xyan@cau.edu.cn
  • Supported by:

    Under the auspices of the Special Scientific Research of the Ministry of Land and Resources of China (No.201411009)

摘要:

The agro-pastoral ecotone has been recognized as the main distribution area of reserved land resource for cultivation. Accordingly, clarifying this assumption, as well as concerting land reclamation and ecological restoration, is important to ensure food security and environmental improvement in the agro-pastoral ecotone. We selected Horqin Left Back Banner (HLBB) as the subject of our case study. The landscape ecological security pattern of this area was determined using the minimum cumulative resistance model. Over-cultivation, quantity of reserved land resource for cultivation, and changes in landscape indexes before and after land use adjustment were then analyzed. Over-cultivation is a serious problem in the agro-pastoral ecotone. Reserved land resource for cultivation is less than that considered previously, and the area of reserved land resource for cultivation in HLBB only accounts for 11.50% of total uncultivated land. With regard to changes in landscape indexes, the adjusted land use pattern is effective for anti-desertification. The compensation standard for abandoned cultivated land should be improved and the comprehensive results of ‘Grain for Green’ should be evaluated to further implement ecological restoration in the agro-pastoral ecotone.

关键词: land reclamation, ecological restoration, minimum cumulative resistance model, agro-pastoral ecotone, China

Abstract:

The agro-pastoral ecotone has been recognized as the main distribution area of reserved land resource for cultivation. Accordingly, clarifying this assumption, as well as concerting land reclamation and ecological restoration, is important to ensure food security and environmental improvement in the agro-pastoral ecotone. We selected Horqin Left Back Banner (HLBB) as the subject of our case study. The landscape ecological security pattern of this area was determined using the minimum cumulative resistance model. Over-cultivation, quantity of reserved land resource for cultivation, and changes in landscape indexes before and after land use adjustment were then analyzed. Over-cultivation is a serious problem in the agro-pastoral ecotone. Reserved land resource for cultivation is less than that considered previously, and the area of reserved land resource for cultivation in HLBB only accounts for 11.50% of total uncultivated land. With regard to changes in landscape indexes, the adjusted land use pattern is effective for anti-desertification. The compensation standard for abandoned cultivated land should be improved and the comprehensive results of ‘Grain for Green’ should be evaluated to further implement ecological restoration in the agro-pastoral ecotone.

Key words: land reclamation, ecological restoration, minimum cumulative resistance model, agro-pastoral ecotone, China