CHAI Lifu,TIAN Li,AO Yong,et al.Influence of Human Disturbance on the Change of Vegetation Cover in the Tibetan Plateau[J].Research of Soil and Water Conservation,2021,28(06):382-388.
人类活动干扰对青藏高原植被覆盖变化的影响
- Title:
- Influence of Human Disturbance on the Change of Vegetation Cover in the Tibetan Plateau
- 文章编号:
- 1005-3409(2021)06-0382-07
- Keywords:
- NDVI; human activity; relative importance; the Qinghai-Tibetan Plateau
- 分类号:
- Q948.12+3
- 文献标志码:
- A
- 摘要:
- 为了探究人类活动对生态系统的影响以及贡献率，基于青藏高原地区2000—2018年归一化植被指数(NDVI)、气象数据和社会经济数据，采用变化趋势分析、残差分析、相对重要性等方法，分析了近19 a间青藏高原生长季植被覆盖变化规律，并量化了不同类型人类干扰对其变化的影响。结果表明:(1)2000—2018年青藏高原地区NDVI总体呈增加趋势。(2)人类活动对植被覆盖起到促进作用的地区占总面积的61.16%，人类活动对植被覆盖起到破坏作用的地区占总面积的38.84%，总体上青藏高原地区人类活动对植被起到促进作用。(3)海西州、海北州以及那曲市植被变化由GDP1主导; 玉树州的植被变化主要是GDP2引起; 黄南州、昌都市、那曲市植被变化由GDP3主导; 海北州、昌都市植被变化主要由放牧强度引起; 海南州植被变化主要由人口城镇化主导; 西宁、拉萨以及果洛地区5种指标的植被变化贡献率相近。该结果表明不同区域的社会经济发展方式对植被生态系统的依赖强度不同，在目前和未来维护区域生态系统和社会系统可持续发展的目标下，针对不同区域应采取针对性的发展措施，以实现区域生态环境效益、经济效益和社会效益的最大化发展。
- Abstract:
- In order to explore the influence of human activities on the ecosystem and contribution，based on the normalized difference vegetation index(NDVI)，meteorological data and social economic data of Qinghai-Tibet Plateau region in 2000—2018，the change trend analysis and residual analysis，methods of relative importance were used to analyze the vegetation change pattern in growing season of the Qinghai-Tibetan Plateau within nearly 19 years，and the effects of different types of human interference on the change of the gene were quantified. The results showed that:(1)from 2000 to 2018，NDVI increased in Qinghai-Tibetan plateau;(2)the area where human activities promoted vegetation cover accounted for 61.16% of the total area，and the area where human activities destroyed vegetation cover accounted for 38.84% of the total area;(3)the vegetation change in Haixi Prefecture，Haibei Prefecture and Nagqu City was dominated by GDP1; the vegetation change in Yushu Prefecture was mainly caused by GDP2; the vegetation change in Huangnanzhou，Qamdo and Nagqu was dominated by GDP3; the vegetation change in Haibei Prefecture and Qamdo City was mainly caused by grazing intensity; the vegetation change in Haina Prefecture was mainly dominated by population urbanization; in Xining，Lhasa and Guoluo area，the contribution rate of vegetation change of the five indexes is similar. The social and economic development in different areas of the vegetation ecosystem depend on the strength of different，in the present and the future maintenance of regional ecological system and social system under the goal of sustainable development，according to the development of different regions should adopt corresponding measures，in order to realize the regional ecological environmental benefit，economic benefit and social benefit maximization.
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备注/Memo
收稿日期:2020-12-01 修回日期:2020-12-28资助项目:中国科学院基础前沿科学研究计划从0到1原始创新项目(ZDBS-LY-DQC023); 中科吉安生态环境研究院院长基金(ZJIEES-2020-06); 吉安市重点科技研发项目-技术创新引导(3A)第一作者:柴立夫(1994—)，男，甘肃天水人，硕士研究生，研究方向为景观生态学。E-mail:527017619@qq.com通信作者:田莉(1984—)，女，河南沈丘人，博士，副研究员，主要从事研究景观生态学研究。E-mail:tianli@igsnrr.ac.cn