1.新疆师范大学地理科学与旅游学院,新疆 乌鲁木齐 830017
2.新疆干旱区湖泊环境与资源实验室,新疆 乌鲁木齐 830017
刘子泰(2002年生),男;研究方向:资源环境遥感;E-mail:107622025210662@stu.xjnu.edu.cn
王雪梅(1976年生),女;研究方向:干旱区资源环境遥感;E-mail:xmwang2022@xjnu.edu.cn
收稿:2025-08-15,
修回:2025-10-08,
录用:2025-10-24,
网络首发:2026-01-04,
纸质出版:2026-03-25
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刘子泰,王雪梅,赵枫.艾比湖流域过去20年植被物候变化及其对气候和非气候要素的响应[J].中山大学学报(自然科学版)(中英文),2026,65(02):27-38.
LIU Zitai,WANG Xuemei,ZHAO Feng.Vegetation phenology changes in the Ebinur Lake basin during the past 20 years and their responses to climatic and non-climatic factors[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2026,65(02):27-38.
刘子泰,王雪梅,赵枫.艾比湖流域过去20年植被物候变化及其对气候和非气候要素的响应[J].中山大学学报(自然科学版)(中英文),2026,65(02):27-38. DOI: 10.11714/acta.snus.ZR20250171.
LIU Zitai,WANG Xuemei,ZHAO Feng.Vegetation phenology changes in the Ebinur Lake basin during the past 20 years and their responses to climatic and non-climatic factors[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2026,65(02):27-38. DOI: 10.11714/acta.snus.ZR20250171.
探究艾比湖流域植被物候的变化特征及其对气候暖湿化的响应机制,可为揭示干旱区生态系统碳水循环提供关键信息。鉴于此,研究基于2001—2021年的MODIS EVI时序数据,采用动态阈值法提取艾比湖流域植被物候信息,并结合气温和降水量数据进行偏相关分析和驱动分区。结果显示,2001—2021年艾比湖流域的植被物候总体表现为:返青期以0.17 d/a的速率推迟,枯黄期约以0.06 d/a的速率推迟,生长季长度以-0.42 d/a的速率缩短,但这些变化均不显著(
P
>
0.05)。气候因素与植被物候的相关性较为复杂,且存在一定的空间差异。在局部区域,返青期与气温、降水量呈显著正相关性(
P
<
0.05),而枯黄期和生长季长度则与气温、降水量呈显著负相关性(
P
<
0.05),且植被物候对降水的敏感性明显高于气温。气候暖湿化对局部区域的植被物候变化具有一定的驱动作用,而非气候因素(土地利用方式、灌溉、放牧、地形和土壤属性等),对流域大部分区域的影响则更为显著。研究结果可为干旱区内陆湖流域生态系统健康发展提供依据。
Understanding the variation characteristics of vegetation phenology and its response mechanisms to climate warming and wetting in the Ebinur Lake basin is essential for elucidating ecosystem carbon and water cycle
s in arid regions. Utilizing MODIS EVI time-series data from 2001 to 2021, this study extracted key vegetation phenological parameters in the Ebinur Lake Basin employing the dynamic threshold method. Partial correlation analysis and driver attribution analysis were conducted using temperature and precipitation data. The results revealed the following general trends of vegetation phenology from 2001 to 2021: the start of the growing season was delayed at a rate of 0.17 d/a, the end of the growing season was slightly delayed at 0.06 d/a, and the length of the growing season length was shortened at a rate of -0.42 d/a. However, none of these trends were statistically significant(
P
>
0.05). The relationships between climatic factors and vegetation phenology were complex and exhibited considerable spatial heterogeneity. In certain local areas, the start of the growing season was significantly positively correlated with both temperature and precipitation, whereas the end and length of the growing season were significantly negatively correlated with them (
P
<
0.05). Moreover, vegetation phenology was more sensitive to precipitation than to temperature. While climate warming and wetting served as notable driving effects on phenological variations in some local areas, non-climatic factors, such as land use patterns, irrigation and grazing activities, topography, and soil properties, etc.,had a more pronounced influence across most of the basin. These findings offer a scientific basis for promoting the sustainable and healthy development of inland lake basin ecosystems in arid regions.
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