期刊论文

The Evaluation of the Land Ecological Safety in Hengyang City Based on the P-S-R Model and Gray Prediction Model

中文

新疆师范大学学报(自然科学版)

1008-9659

2020

39

1

49-56

10.14100/j.cnki.1008-9659.2020.01.010

新疆维吾尔自治区自然科学基金(2017D01A61)资助。

本校为其他机构

文章针对衡阳市社会经济发展对土地生态安全的影响,用熵权法确定各项指标权重,利用PSR模型构建评价指标体系,开展2007-2017年衡阳市土地安全评估,并采用灰色预测模型开展2018-2022年衡阳市土地生态安全的前景分析。研究结果表明:衡阳市土地生态安全状况在2007-2013年总体呈下降趋势,土地生态安全综合值在2013年降至最低,2013年后有所好转,土地生态安全水平逐渐提高。通过灰色预测模型可以得出:衡阳市2018-2022年的土地生态安全态势同样呈现上升趋势。研究结果可为今后衡阳市土地资源规划与发展提供科学参考,亦可为其它城市提供借鉴。

Land ecological security of Henyang city has been severely influenced by socio-economic development in recent years.This paper evaluated the land ecological security of Hengyang city during 2007-2017 based on ecological security indexes and weight with PSR model and entropy weight method,then analyzing the land ecological security prospects during 2018-2022 based on the gray prediction model.The result showed that the overall of land ecological security of Hengyang decreased to the lowest value in 2013.The security situation has been remarkably improving since 2013,and the ecological security ...