【摘要】 为了解洞庭湖水域面积的年际间变化规律,探寻其影响因素,采用监督分类法从Landsat遥感数据中提取了1996—2014年洞庭湖主要水域信息,结合该区域气候和经济发展对水域面积变化进行探讨,选取自然和社会经济因素指标进行相关分析。结果表明,湖区水域面积与该区产业发展较强负相关,尤其是与农林牧渔业,相关系数高达0.97:流域面积与气温负相关,与降水正相关。人类生产活动是洞庭湖水域变化最重要的间接原因。更多还原

【Abstract】 In order to know the inter-annual trend of Donting Lake water area and its affecting factors,the information of water area was extracted from satellite images over 1996—2013 by supervised classification.The change of water area was discussed combining with regional climate and economic development,and the natural and social economic factors were selected to make correlation analysis test.The results showed that there was a strong negative correlation between lake area and industrial development,especially agriculture,forestry,animal husbandry and fishery,and the correlation coefficient was up to 0.97.Lake area was negatively correlated with air temperature and positively correlated with precipitation.Human activities was the most important indirect cause of the Dongting Lake water area changes.更多还原