globalchange  > 气候变化与战略
CSCD记录号: CSCD:5923695
论文题名:
内蒙古荒漠草原两种草地型植物生态类群变迁及其气候变化特征分析
其他题名: Analysis on the Changes of Plant Ecological Group and the Characteristics of Climate Change in Two Grassland Types in Desert Steppe in Inner Mongolia
作者: 那亚1; 候伟峰1; 敖特根1; 金花2; 王志军2; 萨茹拉3
刊名: 生态环境学报
ISSN: 1674-5906
出版年: 2016
卷: 25, 期:12, 页码:237-246
语种: 中文
中文关键词: 生态变迁 ; 植物生态类群 ; 气温 ; 降水量 ; 荒漠草原 ; 朱日和镇
英文关键词: ecological change ; plant ecological group ; temperature ; precipitation ; desert steppe ; Zhurihe town
WOS学科分类: AGRICULTURE MULTIDISCIPLINARY
WOS研究方向: Agriculture
中文摘要: 气候变化与植被之间的相关关系研究多集中在全球和区域尺度上,而对小尺度区域的长时间序列研究则较少。将研究区限定在苏尼特右旗朱日和镇,在大量搜集气象和植被相关数据资料的基础上,采用线性回归与趋势分析方法,针对该地区荒漠草原分布较广的短花针茅(Stipa breviflora)、冷蒿(Artemisia frigida)、无芒隐子草(Cleistogenes songorica)草地型和小针茅(Stipa klemenzii)、无芒隐子草草地型近60年来的植物生态类群变迁及其局地性气候变化特征进行了深入研究,旨在为了解和深入研究该地区生态环境变迁驱动机制提供参考依据。结果显示:近60年来,朱日和镇年均气温呈波动上升趋势,其上升速率为0.045 5 ℃·a~(-1),每个年代平均递增了0.438 ℃,80年代中后期以来增温十分明显;夏季各年代平均气温增幅最大,平均递增了0.4 ℃;年降水量呈波动减少趋势,其减少速率为0.698 mm·a~(-1),每个年代平均减少了12.43 mm;夏季各年代平均降水量减少幅度最大,每个年代平均减少了10.39 mm;牧草生长季(410月)每个年代平均降水量减少了10.38 mm;两种草地型草原种减少、荒漠草原种增加。朱日和镇气候逐年旱化、温暖化,旱灾增多、周期缩短,尤其在牧草生长季节干旱越来越严重,其草地植被逐年趋于旱生化和荒漠化。
英文摘要: To study the changes of plant ecological group and the basic characteristics of climate change over two types of grassland in Zhurihe desert steppe region, we collected the meteorological data and grassland survey data in the past 60 years since 1953 and conducted field survey in Zhurihe Town. The results confirmed that the average temperature in past 60 years increased 0.438℃/10a, and the average annual temperature was rising with a rate of 0.045 5 ℃·a~(-1). Since the middle of 80 s, the temperature increase was very noticeable. The temperature increased significantly in summer and climbed 0.4 ℃/10 a. On the other hand, the average precipitation decreased 12.43 mm/10 a over the past 60 years, and the average annual precipitation was reducing with a rate of 0.698 mm·a~(-1). The precipitation also dropped considerably in summer and decreased by 10.39 mm/10 a. Furthermore, the average precipitation reduced 10.4 mm/10 a in the growth season. As a result, the grassland species decreased, and the desert steppe species increased in Zhurihe desert steppe. The climate over the study area was drying and warming. The drought disaster was increasing and happening with increased frequencies, especially during the growing season. The grassland vegetation evolved toward sparse and desertification year by year.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/151271
Appears in Collections:气候变化与战略

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作者单位: 1.内蒙古农业大学草原与资源环境学院, 呼和浩特, 内蒙古 010019, 中国
2.内蒙古自治区草原勘察规划院, 呼和浩特, 内蒙古 010051, 中国
3.中国农业科学院草原研究所, 呼和浩特, 内蒙古 010020, 中国

Recommended Citation:
那亚,候伟峰,敖特根,等. 内蒙古荒漠草原两种草地型植物生态类群变迁及其气候变化特征分析[J]. 生态环境学报,2016-01-01,25(12):237-246
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