2000-2016年呼伦贝尔草原植被覆盖度时空变化及其影响因素分析

doi:10.11934/j.issn.1673-4831.2018.07.002

生态与农村环境学报 ›› 2018, Vol. 34 ›› Issue (7): 584-591.doi: 10.11934/j.issn.1673-4831.2018.07.002

2000-2016年呼伦贝尔草原植被覆盖度时空变化及其影响因素分析

李林叶¹, 田美荣², 梁会¹, 陈艳梅³, 冯朝阳⁴, 渠开跃⁵, 钱金平¹

1. 河北师范大学资源与环境科学学院/河北省环境演变与生态建设重点实验室, 河北石家庄 050024;
2. 环境保护部南京环境科学研究所, 江苏南京 210042;
3. 河北师范大学旅游系, 河北石家庄 050024;
4. 中国环境科学研究院/国家环境保护区域生态过程与功能评估重点实验室, 北京 100012;
5. 河北工业职业技术学院环境与化学工程系, 河北石家庄 050024

收稿日期:2018-01-18 出版日期:2018-07-25 发布日期:2018-07-25
通讯作者: 渠开跃 E-mail:qukaiyue@126.com
作者简介:李林叶(1993-),女,河北邯郸人,硕士生,主要研究方向为生态环境遥感。E-mail:1763500610@qq.com
基金资助:
环保公益性行业科研专项（201509040）

Spatial and Temporal Changes of Vegetation Coverage and Influencing Factors in Hulun Buir Grassland During 2000-2016

LI Lin-ye¹, TIAN Mei-rong², LIANG Hui¹, CHEN Yan-mei³, FENG Chao-yang⁴, QU Kai-yue⁵, QIAN Jin-ping¹

1. College of Resources and Environmental Sciences, Hebei Normal University/Laboratory of Environmental Evolution and Ecological Construction of Hebei Province, Shijiazhuang 050024, China;
2. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China;
3. Department of Tourism, Hebei Normal University, Shijiazhuang 050024, China;
4. State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
5. Hebei Polytechnic College of Environmental and Chemical Engineering, Shijiazhuang 050024, China

Received:2018-01-18 Online:2018-07-25 Published:2018-07-25

摘要/Abstract

摘要：

采用植被指数和像元二分模型相结合的方法分析了呼伦贝尔草原2000-2016年植被年际空间分布变化规律，并结合同期气象数据，在区域尺度上分析了呼伦贝尔草原植被覆盖年际变化及其与气候因子的关系，揭示气候变化对呼伦贝尔草原植被覆盖变化的影响。结果表明：（1）2000-2016年呼伦贝尔草原平均植被覆盖度为0.51，以中低植被覆盖度为主，呈由东到西递减的特征。（2）2000-2016年研究区植被覆盖度整体呈减少趋势，表现为由点状退化向片状整体退化发展，局部地区增加，其中52.79%的草原植被状况趋于恶化，以海拉尔西部、鄂温克旗和新巴尔虎左旗中部退化最为显著；47.21%的草原植被状况趋于好转，主要分布在研究区西部和东部的部分地区，以新巴尔虎右旗西部地区较为显著。（3）呼伦贝尔草原呈现由中东部向西部退化演进的变化趋势，且退化面积不断增加。（4）呼伦贝尔草原年最大植被覆盖度与年降水量和年均温的平均相关系数分别为0.17和-0.06，表明植被覆盖度年际变化与降水关系更密切。

关键词: 呼伦贝尔草原, 植被覆盖度, 气候因子

Abstract:

Reassessment of the relationship between the regional vegetation coverage and the climate change has been the focus of concern for vegetation response to climate change. The spatial and interannual dynamics of vegetation in Hulun Buir grassland from 2000 to 2016 were explored and its driving effects from the climate factors were discussed based on the vegetation index and pixel dichotomy model. It has been found that (1) The average vegetation coverage of Hulun Buir grassland was 0.51 during the period from 2000 to 2016, and the grassland was covered dominantly with medium and low vegetation coverage decreasd from east to west. (2) The vegetation coverage of the grassland declined from 2000 to 2016, and 52.79% of the grassland vegetation coverage tended to deteriorate mostly in the western part of Hailaer, Ewenki Banner and middle part of Xinbaerhu. By contrast, 47.21% of grassland tended to be covered more by vegetation coverage to in the western and eastern of Hulun Buir grassland, especially in western part of Xinbaerhu. (3) Spatially, Hulun Buir grassland degenerated from the middle east to the west. (4) The inter-annual changes of vegetation coverage was closely related to precipitation with the correlation coefficient of 0.17.

Key words: Hulun Buir Grassland, vegetation coverage, climatic factors, correlation

中图分类号:

X171.1

李林叶, 田美荣, 梁会, 陈艳梅, 冯朝阳, 渠开跃, 钱金平. 2000-2016年呼伦贝尔草原植被覆盖度时空变化及其影响因素分析[J]. 生态与农村环境学报, 2018, 34(7): 584-591.

LI Lin-ye, TIAN Mei-rong, LIANG Hui, CHEN Yan-mei, FENG Chao-yang, QU Kai-yue, QIAN Jin-ping. Spatial and Temporal Changes of Vegetation Coverage and Influencing Factors in Hulun Buir Grassland During 2000-2016[J]. Journal of Ecology and Rural Environment, 2018, 34(7): 584-591.

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2000-2016年呼伦贝尔草原植被覆盖度时空变化及其影响因素分析

Spatial and Temporal Changes of Vegetation Coverage and Influencing Factors in Hulun Buir Grassland During 2000-2016

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