| 李超.人口总量与结构变化影响植被覆盖的实证研究[J].广东农业科学,2015,42(12):186-192 |
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人口总量与结构变化影响植被覆盖的实证研究 |
| Impacts of population changes on vegetation cover: mechanism analysis and empirical research |
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| DOI： |
| 中文关键词: 人口 植被覆盖 NDVI 中国 |
| 英文关键词: population vegetation cover NDVI China |
| 基金项目: |
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| 摘要点击次数: 1217 |
| 全文下载次数: 500 |
| 中文摘要: |
| 人口变化对我国自然环境所产生的影响越来越大，其中，植被作为陆地生态系统的主要组成部
分，为人类社会经济活动提供最重要的资源，其受到的影响尤其显著。基于我国31 个省市的人口和植被归一
化植被指数（NDVI）数据进行实证分析，结果表明，我国人口总量增长对植被覆盖变化产生了较大的负面影响，
其中，工业就业人口的增长加剧了这种影响，而人口城镇化发展、年龄结构和文化素质的改善则相对减缓了这
种影响。相应地，我国需要采取的措施包括加快人口城镇化、建立绿化保障制度、推广绿化新技术、优化人口就
业结构、培育公民绿化环保意识等。 |
| 英文摘要: |
| Human activities have a large impact on vegetation cover change, but the population factors that
cause human activities change are still lack of attention in the study of population and vegetation cover at present. In
this paper, we took 31 provinces in China as the interested areas to test the relationship between population factors
(including population quantity, quality, urbanization, age structure and employment structure) and vegetation cover
change, based on the NDVI data. The results showed that the total population growth had a great negative impact on
vegetation cover change in China. The industrial employment population growth intensified this impact, while the
improvements of population urbanization, quality and age structure reduced it. Accordingly, some measures must be
taken to improve the vegetation cover in China, including speeding up the population urbanization, establishing the
green security system, promoting new green technologies, optimizing the employment structure, fostering citizens'
greening awareness, and so on. |
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