内蒙古潜在草地植被对历史和未来气候变化的响应

IF 1.2 4区 环境科学与生态学 Q4 ECOLOGY
Rangeland Journal Pub Date : 2021-07-05 DOI:10.1071/rj20108
Liu Xiaoni, Li Qiang, W. Hongxia, Ren Zhengcao, He Guoxing, Zhang Degang, Han Tianhu, Sun Bin, Pan Dongrong, Ji Tong
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引用次数: 1

摘要

评估当前和潜在的未来草原植被类型和分布对草原管理具有重要的现实意义。在本研究中,内蒙古的历史和预测气候数据被用于使用综合序列分类系统(CSCS)对两个历史时期(1960-1986和1986-2011)和两个未来时期(2021-2024和2041-2060)的草原类别进行分类。调查了这些时间段内草原等级的变化。结果表明:(1)利用CSCS提供了一种有效的方法来研究历史和未来气候对内蒙古草原等级及其时空分布的影响;(2) 1986年以来,内蒙古降水量呈下降趋势,半湿润区减少,干旱半干旱区扩大。苔原和高山草原、温带地带性湿润草原和温带地带性森林草原的面积减少,高寒沙漠、半沙漠和草原群的面积增加;(3)在预计到2060年内蒙古大面积气温升高、降水减少的情况下,干旱草原类的面积可能会扩大(高寒沙漠、半沙漠和草原),苔原和高山草原的草原类可能会逐渐消失。为了适应不断变化的气候,政府需要在基础设施和草原管理措施方面进行投资,如引入耐旱的草种和通过灌溉提高降水利用率。内蒙古应该利用东部半湿润地区气温上升的好处,这将降低西部干旱地区的放牧压力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Response of potential grassland vegetation to historical and future climate change in Inner Mongolia
Assessing current and potential future grassland vegetation types and distribution has important practical implications in grassland management. In this study, historical and projected climate data from Inner Mongolia were used to classify grassland classes for two historical (1960–1986 and 1986–2011) and two future periods (2021–2024 and 2041–2060) using the Comprehensive and Sequential Classification System (CSCS). Changes of grassland classes in these time periods were investigated. The results indicated that (1) using the CSCS provided an efficient approach to investigate the impact of historical and future climate on grassland classes and their distribution in Inner Mongolia over time and space; (2) since 1986, the precipitation in Inner Mongolia has declined, decreasing the semi-humid zone area and expanding that of arid and semi-arid areas. The area of Tundra and alpine steppe, Temperate zonal humid grassland and Temperate zonal forest steppe decreased, and that of Frigid desert, Semi-desert, and Steppe group increased; and (3) under the projected increase in temperature and decrease in precipitation in large areas in Inner Mongolia by 2060, the area of arid grassland classes will likely expand (Frigid desert, Semi-desert, and Steppe), and the grassland classes of Tundra and alpine steppe may gradually disappear. Government investment in infrastructure and grassland management measures such as introducing drought tolerant grass species and improved precipitation utilisation through irrigation are needed to adapt to the changing climate. Inner Mongolia should take advantage of the benefits of the increase in temperature in the eastern semi-humid region that would permit reduced grazing pressure in the western arid region.
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来源期刊
Rangeland Journal
Rangeland Journal 环境科学-生态学
CiteScore
2.90
自引率
8.30%
发文量
14
审稿时长
>36 weeks
期刊介绍: The Rangeland Journal publishes original work that makes a significant contribution to understanding the biophysical, social, cultural, economic, and policy influences affecting rangeland use and management throughout the world. Rangelands are defined broadly and include all those environments where natural ecological processes predominate, and where values and benefits are based primarily on natural resources. Articles may present the results of original research, contributions to theory or new conclusions reached from the review of a topic. Their structure need not conform to that of standard scientific articles but writing style must be clear and concise. All material presented must be well documented, critically analysed and objectively presented. All papers are peer-reviewed. The Rangeland Journal is published on behalf of the Australian Rangeland Society.
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