干旱区生态环境知识资源中心(Arid): 19822013年内蒙古地区植被物候对干旱变化的响应

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	19822013年内蒙古地区植被物候对干旱变化的响应
其他题名	Response of vegetation phenology to drought in Inner Mongolia from 1982 to 2013
	黄文琳 1; 张强2 ; 孔冬冬 1; 顾西辉 3; 孙鹏 4; 胡畔 2
来源期刊	生态学报
ISSN	1000-0933
出版年	2019
卷号	39 期号:13 页码:4953-4965
中文摘要	气候变化引起的植被物候变化正在大幅度改变生态系统,研究植被物候对干旱的响应对保护内蒙古的生态系统具有重要意义。根据1:100万植被区划,把内蒙古划分为8个植被分区,利用多时间尺度气象标准化降水蒸散指数(SPEI)和NDVI3g时序数据所反演的物候指标,分析内蒙古植被物候的时空变化及其对干旱的响应规律。结果显示:1)在1982年至2013年间,内蒙古植被受到不同时间尺度下干旱的高度控制,尤其是时间尺度干旱的影响(SPEI- 3);2)对于整个研究区,生长季开始(SOS)呈提前趋势,生长季结束(EOS)呈延后趋势,生长季长度(LOS)呈延长趋势,像元比例分别为63.79%、59.77%和62.83%;3)内蒙古除荒漠植被类型地区外,同年春季和夏季初期干旱对SOS均具有延迟作用,同年秋季干旱对EOS均具有延迟作用;4)不同植被类型对干旱强度指数的响应程度存在差异,响应程度集中在-10d/0.1-10d/0.1(例如,ld/0.1表示干旱强度指数每增大0.1,会导致物候指数延迟1 d,而-1d/0.1表示干旱强度指数每增大0.1,会导致物候指数提前1 d)。
英文摘要	Under warning climate, vegetation phenology changes dramatically, which significantly alter ecological process. The response of vegetation phenology to drought is a crucial issue to understand vegetation response to climate change. In this study, we analyzed the spatial and temporal pattern of the vegetation phenology response to drought. Vegetation phenology metrics were extracted from AVHRR NDVI3g time-series during 1982-2013. Drought was defined by multiple time-scale Standard Precipitation-Evaporation index (SPEI). Results showed that: 1) during19822013, vegetation phenology was highly controlled by drought on different time scales and by effects of seasonal drought (3 month time-scale SPEI) in particular; 2) the starting of the growing season (SOS) was earlier than before; the ending of the growing season (EOS) was delayed than before; the length of the growing season (LOS) was lengthening; the changing rate of SOS, EOS and LOS was respectively 63.79%, 59.77% and 62.83%; 3) except desert vegetation, spring and early summer drought of the same year all had the effect of inhibiting the SOS of other vegetation types regions, e.g.,drought delays SOS, and the autumn drought of the same year all had the effect of inhibiting the EOS of other vegetation types regions; 4) there are differences in the responses of different vegetation types to the drought intensity index,the response levels are concentrated in -lOd/0.1 10d/0.1,e.g. 1d/0.1 indicates that each increase in the drought intensity index of 0.1 will cause a delay of 1 day in the phenology metrics,-ld/0.1 indicates that each increase in the drought intensity index of 0.1 will cause a advance of 1 day in the phenology metrics.
中文关键词	物候 ; 干旱强度 ; 内蒙古 ; M-K趋势
英文关键词	SPEI vegetation phenology SPEI drought intensity Inner Mongolia M-K trend
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6535761
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239452
作者单位	1.中山大学水资源与科学系, 广州, 广东 510275, 中国; 2.北京师范大学;;北京师范大学地理科学学部民政部/教育部减灾与应急管理研究院, 环境演变与自然灾害教育部重点实验室;;, ;;, 北京;;北京 100875;;100875, 中国; 3.(武汉)中国地质大学环境学院, 武汉, 湖北 430074, 中国; 4.安徽师范大学国土资源与旅游学院, 芜湖, 安徽 241003, 中国
推荐引用方式 GB/T 7714	黄文琳,张强,孔冬冬,等. 19822013年内蒙古地区植被物候对干旱变化的响应[J]. 北京师范大学,2019,39(13):4953-4965.
APA	黄文琳,张强,孔冬冬,顾西辉,孙鹏,&胡畔.(2019).19822013年内蒙古地区植被物候对干旱变化的响应.生态学报,39(13),4953-4965.
MLA	黄文琳,et al."19822013年内蒙古地区植被物候对干旱变化的响应".生态学报 39.13(2019):4953-4965.