Analysis on Spatio-temporal Evolution of Habitat Quality in Qilian Mountains Based on Land Use Change

Xue Xiaoyu; Wang Xiaoyun; Duan Hanming; Yang Lu; Xie Yaowen

doi:10.13961/j.cnki.stbctb.2020.02.040

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Analysis on Spatio-temporal Evolution of Habitat Quality in Qilian Mountains Based on Land Use Change

- Analysis on Spatio-temporal Evolution of Habitat Quality in Qilian Mountains Based on Land Use Change
- Bulletin of Soiland Water Conservation Vol. 40, Issue 2, Pages: 278-284(2020)
- 作者机构：
  
  1. 兰州大学资源环境学院,甘肃,兰州,730000
  2. 西华师范大学国土资源学院,四川,南充,637002
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.02.040
  CLC： X826
- Published：2020
- 稿件说明：
移动端阅览
Xue Xiaoyu, Wang Xiaoyun, Duan Hanming, et al. Analysis on Spatio-temporal Evolution of Habitat Quality in Qilian Mountains Based on Land Use Change[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 278-284.
DOI：

Xue Xiaoyu, Wang Xiaoyun, Duan Hanming, et al. Analysis on Spatio-temporal Evolution of Habitat Quality in Qilian Mountains Based on Land Use Change[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 278-284. DOI： 10.13961/j.cnki.stbctb.2020.02.040.

摘要

[目的] 对祁连山地区的生境质量和生境退化状况开展研究，揭示人类活动对该地区生态环境的影响程度，为该地区的生态环境保护和发展提供科学参考。[方法] 基于1970s末以来全国1：10万土地利用数据，分析1970s末至2015年近35 a来祁连山地区的土地利用和景观格局变化特征，并采用InVEST模型评估该地区生境质量变化。[结果] ①草地和未利用土地是该区最主要的土地利用类型，其次是林地、耕地、水域、城乡工矿居民用地；其中草地和城乡工矿居民用地的变化较剧烈，前者先减后增，后者持续增加。②在时间变化上，随着土地利用类型的变化，该区的生境质量由恶化的态势逐渐趋于改善，2015年生境质量最好。③在空间分布上，该区的生境质量和生境退化度均表现为东高西低。[结论] 优越的自然条件使其生境质量较高；人类活动强度较高则是生境退化度较高的原因。

Abstract

[Objective] The habitat quality and habitat degradation in the Qilian Mountains was explored

in order to reveal the extent of human activities affecting the ecological environment of the Qilian Mountains and to provide scientific references for the ecological environmental protection and development in the region.[Methods] The land use and landscape pattern changes in the Qilian Mountains in the past 35 years based on the national 1:100 000 land use data since 1970s

and then the InVEST model was used to evaluate the evolution in habitat quality.[Results] ① Grassland and unused land were the most important land use types in the study area

followed by forest land

cultivated land

waters

urban and rural construction land. Among them

changes of grassland and urban and rural construction land were more severe

the former was reduced firstly and then increased

while the latter continued to increase. ② In temporal scale

with the change of land use type

the habitat quality of Qilian Mountain area gradually improved from the deterioration

and the habitat quality was the best in 2015. ③ At spatial scale

both of the habitat quality and habitat degradation degree in the Qilian Mountains were high in the east and low in the west.[Conclusion] Superior natural conditions result in higher habitat quality

and higher intensity of human activities are responsible for habitat degradation.

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