四个时期江西省湿地动态及其影响因素研究  

Dynamic of Wetlands in Jiangxi Province for 4 Periods and Their Influence Factors

作　　者：夏阳 方朝阳[1,2] 黄琪[1,2] 王妍婕[3] 李慧中 XIA Yang;FANG Chaoyang;HUANG Qi;WANG Yanjie;LI Huizhong(School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,Jiangxi,P.R.China;Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education,Nanchang 330022,Jiangxi,P.R.China;Jiangxi Provincial Bureau of Nuclear Industry Geology,Nanchang 330046,Jiangxi,P.R.China)

机构地区：[1]江西师范大学地理与环境学院,江西南昌330022 [2]鄱阳湖湿地与流域研究教育部重点实验室,江西南昌330022 [3]江西省核工业地质局,江西南昌330046

出　　处：《湿地科学》2022年第3期348-356,共9页Wetland Science

基　　金：国家自然科学基金项目(U1811464);江西省重点研发计划项目(20192ACB70014);江西省03专项和5G项目(20212ABC03A09)资助。

摘　　要：采用面向对象方法,利用1989年、2000年、2010年和2020年江西省60景Landsat TM/ETM/OLI遥感影像数据,提取4个时期江西省土地利用信息;利用湿地景观动态变化指数、湿地动态强度指数、景观指数和土地利用转移矩阵,得到了4个时期江西省各类型湿地分布、面积和景观指数特征;采用地理探测器,确定了影响湿地的主要因素。研究结果表明,随着时间的推移,4个时期江西省湿地总面积总体在减少,由1989年的743482.08 hm^(2)减小至2020年的732543.66 hm^(2);沼泽湿地的面积一直在减小,其面积从1989年的19793.26 hm^(2)减小至2020年的7194.31 hm^(2);与2010年相比,2020年江西省西部和南部的宜春市、吉安市和赣州市湿地面积明显萎缩;与1989年相比,2020年,江西省丧失的湿地主要被开发为耕地,江西省的河流湿地、淡水湖泊、沼泽湿地和人工湿地的破碎化程度都有所改善;4个时期江西省淡水湖泊一直是江西省湿地的优势景观类型,河流湿地的形状最复杂;江西省湿地的主要影响因素为渔业产值、第一产业产值、城市绿化覆盖面积、固定资产投资额、国内生产总值和年降水量。Using data of 60-view Landsat TM/ETM/OLI remote sensing images of Jiangxi province,land use information of Jiangxi province in 1989,2000,2010 and 2020 was extracted by an object-oriented approach The wetland landscape dynamic change index,wetland dynamic intensity index,landscape indexes and land use transfer matrix to quantify each type of wetlands of Jiangxi province for 4 periods were calculated.Using a geographic probe,the main factors affecting wetlands were identified.The results of the study showed tha total areas of the wetlands in Jiangxi province were generally decreasing for four periods over time,from743482.08 ha in 1989 to 732543.66 ha in 2020;the areas of marsh wetlands has been decreasing,from19793.26 ha in 1989 to 7194.31 ha in 2020;compared with 2010,the wetland areas of Yichun,Ji’an and Ganzhou in the west and south of Jiangxi province have shrunk significantly in 2020;compared with 1989,in2020,the wetlands lost in Jiangxi province have been mainly developed as arable land,and the fragmentation of river wetlands,freshwater lakes,marsh wetlands and artificial wetlands has been improved;the freshwater lakes in Jiangxi province have been the dominant landscape type,and river wetlands have the most complex shape;the main influencing factors of wetlands in Jiangxi province were fishery output value,primary industry output value,urban greening coverage area,fixed asset investment amount,gross domestic produc and annual precipitation.

关 键 词：湿地分布 湿地面积 江西省 

分 类 号：P901[天文地球—自然地理学] TP79[自动化与计算机技术—检测技术与自动化装置]