| 天山新疆段植被物候特征及其气候响应 |
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| 引用本文： | 玛地尼亚提·地里夏提,玉素甫江·如素力,海日古丽·纳麦提,肉克亚木·艾克木. 天山新疆段植被物候特征及其气候响应[J]. 气候变化研究进展, 2019, 15(6): 624-632. DOI: 10.12006/j.issn.1673-1719.2019.094 |
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| 作者姓名： | 玛地尼亚提·地里夏提 玉素甫江·如素力 海日古丽·纳麦提 肉克亚木·艾克木 |
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| 作者单位： | 1.新疆师范大学地理科学与旅游学院 /流域信息集成与生态安全实验室，乌鲁木齐 8300542 新疆干旱区湖泊环境与资源重点实验室，乌鲁木齐 830054 |
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| 基金项目： | 国家自然科学基金项目(U1703341) |
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| 摘 要： | 基于MODIS的MCD12Q2数据,采用趋势分析和相关性分析方法,结合遥感降水和气温数据产品,探求了天山新疆段2001—2014年植被物候的时空变化及其影响因素的相对作用。天山新疆段植被物候始期呈明显的垂直地带性分布特征,集中于3月10日至5月15日,全区14年平均值为3月20日;植被物候末期具有纬度地带性分布特征,集中于10月1日至10月25日。天山新疆段植被物候始期在山区呈不显著推迟趋势,绿洲和平原呈不显著提前趋势;植被物候末期主要呈不显著提前趋势;降水量和气温是影响天山植被物候期的重要因素。物候始期受当年春季气温的影响最为显著,也受到前一年冬季降水量的影响,其与降水量呈正相关,与气温呈负相关。夏季和秋季降水量是天山新疆段植被物候末期的主要影响因素。
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| 关 键 词： | 植被物候 时空变化 MCD12Q2 天山新疆段 影响因素 |
| 收稿时间： | 2019-04-24 |
| 修稿时间： | 2019-07-12 |
The phenological characteristics and climatic response of vegetation in the Xinjiang Tianshan Mountains,China |
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| DILIXIATI Madiniyati,RUSULI Yusufujiang,NAMAITI Hairiguli,AIKEMU Roukeyamu. The phenological characteristics and climatic response of vegetation in the Xinjiang Tianshan Mountains,China[J]. Progressus Inquisitiones DE, 2019, 15(6): 624-632. DOI: 10.12006/j.issn.1673-1719.2019.094 |
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| Authors: | DILIXIATI Madiniyati RUSULI Yusufujiang NAMAITI Hairiguli AIKEMU Roukeyamu |
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| Affiliation: | 1.Institute of Geographical Science and Tourism / Laboratory of Information Integration and Ecological Safety, Xinjiang Normal University, Urumqi 830054, China2 Xinjiang Key Laboratory of Lake Environment and Resources in Arid Zone, Urumqi 830054, China |
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| Abstract: | Based on MODIS MCD12Q2 data, this paper applied trend analysis and correlation analysis methods, combined with remote sensing precipitation and temperature data products, to explore the temporal and spatial variation of vegetation phenology and its relative factors in the Xinjiang Tianshan Mountains from 2001 to 2014. The start of season (SOS) at the Xinjiang Tianshan Mountains showed obvious vertical distribution characteristics, centralized from 10 March to the 15 May. The 14-year average of SOS over the whole area was 20 March; the end of season (EOS) had zonal distribution characteristics, centralized from 1 October to 25 October. The SOS in the Xinjiang Tianshan Mountains showed insignificant delay trend in the mountainous area, and insignificant advancing trend in the oasis and plain areas. The EOS presented insignificant advanced trend. Precipitation and temperature are important factors influencing the phenological period of Tianshan vegetation. The beginning of phenology is most affected by the spring temperature, and it is also affected by the winter precipitation in the previous year, which is positively correlated with precipitation and negatively correlated with temperature. Summer and autumn precipitation are the main influencing factors of the EOS of vegetation in Tianshan Mountains. |
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| Keywords: | Vegetation phenology Spatiotemporal change MCD12Q2 Tianshan Mountains in Xinjiang Influence factor |
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