基于RS和GIS的江西省植被生态质量演变特征分析  

Evolution Characteristics Analysis of Vegetation Ecological Quality in Jiangxi Province Based on RS and GIS

作　　者：李柏贞 吴燕良 王怀清 邱美娟 戴芳筠 陈兴鹃 LI Bo-zhen;WU Yan-liang;WANG Huai-qing;QIU Mei-juan;DAI Fang-yun;CHEN Xing-juan(Jiangxi Ecological Meteorology Center,Nanchang 330096,China;Key Laboratory of Climate Change Risk and Meteorological Disaster Prevention of Jiangxi Province,Nanchang 330096,China;Nanchang National Climate Observatory,Nanchang 330043,China;Yichun Meteorological Bureau,Yichun 336000,China;Tianjin Agricultural University,Tianjin 300384,China)

机构地区：[1]江西省生态气象中心,江西南昌330096 [2]气候变化风险与气象灾害防御江西省重点实验室,江西南昌330096 [3]南昌国家气候观象台,江西南昌330043 [4]宜春市气象局,江西宜春336000 [5]天津农学院,天津300384

出　　处：《江西农业学报》2025年第2期97-103,共7页Acta Agriculturae Jiangxi

基　　金：江西省气象科技重点项目(JX2022Z03)。

摘　　要：基于2000—2023年卫星遥感和地面气象观测资料,采用趋势分析、距平分析等数理统计方法,对江西省的NDVI和NPP植被生态变量年际、季节变化特征进行了分析,并从空间上分析江西省植被生态质量演变特征。结果表明:(1)2000年以来,江西省NDVI、NPP值均呈明显上升趋势,增加速率分别为0.004/a、2.6g C/(m^(2)·a)。(2)江西省植被生态质量呈明显的“夏高冬低”的季节性变化特征,一般为1或2月植被生态质量最低,7或8月最高。(3)江西省的植被生态质量整体得到显著改善,但存在明显的空间差异性,植被生态好的区域主要位于省境边陲高海拔山区,低值区则位于下垫面为水体和城镇的江河湖泊及城区附近,而植被生态改善最为明显的区域分布在鄱阳湖湿地、中南部山地与平原过渡带的部分丘陵地区,其中抚州、鹰潭、赣州等市的植被生态改善比例位居江西省的前3位。Based on satellite remote sensing and ground meteorological observation data from 2000 to 2023,the interannual and variation characteristics of vegetation ecological variables such as NDVI and NPP were analyzed by trend analysis and anomaly analysis and other mathematical statistical methods,and the evolution characteristics of vegetation ecological quality in Jiangxi Province were analyzed from space.The results show that:(1)Since 2000,vegetation ecological variables such as NDVI and NPP in Jiangxi Province have shown a significant upward trend,with increasing rates of 0.004/a and 2.6 g C/(m^(2)·a).(2)The vegetation ecological quality in Jiangxi Province shows a clear seasonal variation characteristic of high in summer and low in winter,generally with the lowest vegetation ecological quality in January or February and the highest in July or August.(3)The overall ecological quality of vegetation in Jiangxi Province has improved significantly,but there are obvious spatial differences.The regions with good vegetation ecology are mainly located in the high altitude mountains at the border of the province,and the low value areas are located near the rivers and lakes and urban areas with water bodies and towns as the underlying surface.The regions with the most obvious vegetation ecological improvement are located in the Poyang Lake wetland,part of the hilly areas in the transition zone between the central and southern mountains and plains.Fuzhou,Yingtan and Ganzhou are the top three cities in terms of vegetation ecological improvement.

关 键 词：江西省 生态质量 净初级生产力 归一化植被指数 

分 类 号：Q948[生物学—植物学]