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doi:  10.12013/qxyjzyj2022-018
2000—2021年江西省植被生态质量时空分布及其与气候因子的关系

Spatio temporal distribution of vegetation ecological quality and its relationship with climate factors in Jiangxi province from 2000 to 2021
摘要点击 140  全文点击 84  投稿时间:2022-01-10  修订日期:2022-03-07
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基金:  2018年江西省气象局科研重点项目“省级生态质量气象评价指标体系改进研究”;2021年江西省基本建设专项(第二批)“基于风云气象卫星资料的江西生态质量监测评估应用能力建设”.
中文关键词:  植被生态质量,时空分布,气候因子,相关分析,江西
英文关键词:  vegetation ecological quality  spatial and temporal distribution  climate factors  correlation analysis  Jiangxi
              
作者中文名作者英文名单位
戴芳筠Dai Fangyun江西省生态气象中心
李柏贞Li Bozhen江西省生态气象中心
占明锦Zhan Mingjin江西省生态气象中心
陈兴鹃Chen Xingjuan江西省生态气象中心
戴志健Dai Zhijian江西省生态气象中心
引用:戴芳筠,李柏贞,占明锦,陈兴鹃,戴志健.2022,2000—2021年江西省植被生态质量时空分布及其与气候因子的关系[J].气象与减灾研究,45(2):125-133
中文摘要:
      基于卫星遥感数据和气象数据,采用距平分析、趋势分析、相关性分析等方法,分析了2000—2021年江西省植被生态质量时空变化特征,及其与气温、降水、日照等气候因子的关系。结果表明:1) 自2000年以来江西省植被生态质量整体改善明显,植被净初级生产力和生态质量指数呈明显上升趋势,年平均分别增加3.92 gC/m2和0.4,尤其2011年以后植被净初级生产力和生态质量指数处于较高水平,其中2018年最佳。2) 江西省植被生态指标低值区域位于城区周边,以及由长江和江西五大河流域的泥沙沉积形成的、以鄱阳湖为中心的冲积平原,中值区域位于中南部丘陵,高值区域分布于省境边陲山脉。3) 江西省植被生态指标与年降水量、年平均气温呈显著相关关系,与日照时数相关性不显著。与气候因子的相关性呈现地域差异,南部区域受气温影响较为明显,而中部盆地和东北区域受降水量影响更为明显。
Abstract:
      Based on remote sensing data and meteorological data, the spatial and temporal distribution characteristics of vegetation ecological quality in Jiangxi province and its relationship with climate factors such as temperature, precipitation, and sunshine duration from 2000-2021 were analyzed using deviation analysis, trend analysis, and correlation analysis. The results showed that: 1) Vegetation ecological quality in Jiangxi province was significantly improved from 2000. The vegetation net primary productivity (NPP) and ecological quality index (EQI) showed an obvious upward trend, with an annual average increase of 3.92 gC/ m2 and 0.4, respectively. In particular, NPP and EQI presented high levels since 2011, and reached the maximum in 2018. 2) The low vegetation ecological value regions of Jiangxi province were located around the urban area, and the alluvial plain of Poyang Lake formed by the sediment deposition of the Yangtze River and the five river basins of Jiangxi province. The middle value regions were located in the hilly region of the central and southern part of Jiangxi province, and the high value regions were distributed in the border mountain region of Jiangxi province. 3) The vegetation ecological indicators in Jiangxi province were significantly correlated with annual precipitation and annual average temperature, but not with sunshine duration. The correlation with climatic factors showed regional differences, the southern regions were more obviously affected by temperature, while the central basin and northeast region were more significantly affected by precipitation.
主办单位:江西省气象学会 单位地址:南昌市高新开发区艾溪湖二路323号
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