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新疆艾比湖流域植被覆盖度对气候的响应
朱俏俏1,2, 张鹏*3, 施炜4
1. 杭州超腾能源技术股份有限公司,杭州 310052;2.新疆环境科学研究院,环境监测总站 830002;3.中国科学院新疆生态与地理所;4.杭州超腾能源技术股份有限公司
摘要:
【目的】目的是探讨干旱区植被覆盖度与当地气温、降水间的关系。【方法】 通过提取艾比湖流域2000-2017年植被覆盖度,结合气候数据分析了近十几年流域植被覆盖度在时间与空间上的变化特征,并建立与气候因子的关系。【结果】(1)近18年艾比湖流域平均植被覆盖年均值多在0.25~0.45之间波动。艾比湖流域植被覆盖度总体上呈现四周高、中间低的特征;流域西部植被覆盖度高、逐渐向东方向植被覆盖度变低。(2)2000-2017年艾比湖流域年均植被覆盖度与当地降水呈同步性变化,两者间具有正相关关系;在降水量少的年份(2000年、2006年、2008年、2012年、2014年)植被覆盖度也低。(3)气温增加速度高于降水增加的速度。【结论】相对于过去的绵绵细雨气候,目前暴雨增多,是目前总降水量未减少的主要原因之一。相对于过去,当前气温上升速度增加。
关键词:  降水  气温  NDVI  艾比湖流域
DOI:
分类号:X171.1
基金项目:基金项目:自治区土地开发整理建设管理局委托项目:新疆塔里木河流域生态问题与生态修复专题研究(JTZB(2021)-034(03))
Response of Vegetation Coverage to Climate in the Aibi Lake basin, Xinjiang
Zhu Qiaoqiao1,2, Zhang Peng3, Shi Wei4
1 Hangzhou Chaoteng Energy Technology Co., Ltd, Hangzhou 310052;2 Xinjiang Academy of Environmental Sciences, Environmental Monitoring Station 830002, China;3.Xinjiang Institute of Ecology and Geography, Chinese academy of science, Urumqi 830011;4.Hangzhou Chaoteng Energy Technology Co., Ltd, Hangzhou 310052
Abstract:
【Purpose】To discuss the relationship between vegetation coverage and local temperature and precipitation in arid area, we take the Aibi Lake basin as an example. 【Method】The variations characteristics and relationship of vegetation coverage distribution and climatic factors were analysis, based on data of extraction of the vegetation coverage and combination with climatic data of the Aibi Lake basin from 2000 to 2017. 【Result】The main conclusions are as follows: (1) Vegetation coverage in the Aibi Lake Basin fluctuated between 0.25 and 0.45 in the past 18 years. On the whole, the vegetation coverage in Aibi Lake Basin is high around the periphery and low in the middle. The vegetation coverage is high in the western part of the basin and gradually decreases in the eastward direction. (2) There was a positive correlation between annual vegetation coverage and local precipitation in Aibi Lake Basin from 2000 to 2017. NDVI was also low in the years (2000, 2006, 2008, 2012, and 2014) with low rainfall. (3) Temperature increases faster than precipitation. 【Conclusion】 Compared with the drizzle climate in the past, there is more heavy rain, which may be one of the main reasons for the total precipitation not decreasing at present, and compared with the past, the current temperature rise rate is increasing.
Key words:  Precipitation  temperature  NDVI  Aibi Lake Basin