摘要
柳园口湿地是我国省级自然保护区,其保护与治理对于维护城市生态环境具有重要意义。基于Landsat影像,采用像元二分模型、转移矩阵法和一元线性回归模型分析植被覆盖度时空变化特征,运用皮尔逊相关系数法进行其与年均气温、年均降水的驱动因素分析。结果表明:2000—2020年植被覆盖度呈缓慢上升趋势,湿地的改善区域大于退化区域,年均气温对植被覆盖度的影响大于年均降水。研究结果可为开展湿地生态保护和制定湿地生态修复规划提供科学支撑。
Liuyuankou wetland is a provincial nature reserve in China,and its protection and management are significant to the urban ecological environment.Based on Landsat images,the spatial-temporal variation characteristics of vegetation coverage were analyzed by using the pixel binary model,transfer matrix method and univariate linear regression model,and the driving factors of average pre-cipitation and average temperature was studied by the Pearson correlation coefficient method.The results show that the vegetation cov-erage showed a slow upward trend from 2000 to 2020,the improvement area of wetlands was greater than that of the degraded area,the effect of average annual temperature on vegetation coverage was greater than that of annual precipitation.The research results can pro-vide scientific support for the development of wetland ecological protection and the formulation of wetland ecological restoration plan-ning.
作者
龙英秋
王雯悦
苗向阳
贾萌
王晓蕾
LONG Yingqiu;WANG Wenyue;MIAO Xiangyang;JIA Meng;WANG Xiaolei(School of Geoscience and Technology,Zhengzhou University,Zhengzhou 450000,China)
出处
《测绘与空间地理信息》
2024年第2期58-61,66,共5页
Geomatics & Spatial Information Technology
基金
郑州大学全国大学生创新创业训练计划项目(2021cxcy116)
河南省自然科学基金项目(212300410292)
河南省重点研发与推广专项(科技攻关)项目(212102210137)
河南省高等学校重点科研项目(21A420006)资助。
关键词
植被覆盖度
时空变化
Landsat数据
黄河流域柳园口湿地
Fractional Vegetation Coverage
spatio-temporal variation
Landsat images
Liuyuankou Wetland of the Yellow River Ba-sin
