基于遥感生态指数的生态环境质量评价——以黎川县为例

Evaluation of Ecological Environment Quality Based on Remote Sensing Ecological Index——Taking Lichuan County as an Example

随着城镇化建设的不断推进,生态环境问题受到越来越多的关注。通过生态环境质量评价可以发现城镇化建设对生态环境的影响,进而采取积极的措施以实现人与自然的可持续协调发展。遥感生态指数因具有客观、快速、准确地提取多种地表信息的能力在生态环境质量评价中被广泛采用。因此通过获取2004年和2014年的遥感影像,采用遥感生态指数对黎川县进行生态环境质量评价。研究结果表明:2004—2014年黎川县整体生态环境质量略微变好,但不同等级的分化程度有所增加,其RSEI均值从0.69增加至0.73,标准差从0.10提升至0.14。

With the continuous advancement of urbanization,ecological and environmental issues have received more and more attention. Through the evaluation of ecological environment quality,the impact of urbanization construction on the ecological environment can be discovered,and active measures can be taken to realize the sustainable and coordinated development of man and nature.Therefore,this paper uses remote sensing based ecological index to evaluate the ecological environment quality of Lichuan County by acquiring remote sensing images in 2004 and 2014. The results of the study showed that the overall ecological environment quality of Lichuan County improved slightly from 2004 to 2014,but the degree of differentiation among different levels increased. The mean RSEI increased from 0.69 to 0.73,and the standard deviation increased from 0.10 to 0.14.