摘要
以绵阳市地理国情调查成果为基础,按照“生产–生态–生活”土地利用主导功能分类思想识别区域生态用地景观类型,利用GIS空间分析方法,采用多样化、集中性、区位熵、破碎度、优势度和均匀度等景观指数对其生态用地景观结构与格局特征进行分析,并运用土地利用生态质量指数法对其生态环境效应测算。结果表明:1) 生态用地景观结构呈现“城镇–郊区–乡村”简单与复杂的城乡差异;2) 生态用地景观格局呈现“平坝–丘陵–山地”地形梯度分异;3) 生态环境效应水平不高(0.5785),县区差异明显,呈现从丘区到山区生态环境质量逐渐增强的趋势。
Based on the survey results of Mianyang geographical situation,this paper identifies the landscape types of regional ecological land according to the idea of“production-ecology-life”,which uses the spatial analysis method of GIS,and adopts the diversity,centralization,location entropy,crushing degree and landscape indices such as dominance and uniformity to analyze the landscape structure and pattern characteristics of their ecological land,and uses the Land Use ecological quality index method to measure its ecological environment effect.The results show that:1)The landscape structure of ecological land presents the simple and complex urban-rural difference between“town-suburb-countryside”.2)The landscape pattern of ecological land presents“Pingba-hilly-mountain”terrain gradient differentiation.3)The level of ecological environment effect is not high(0.5785);the difference between counties and regions is obvious;and the quality of ecological environment is gradually enhanced from hilly area to mountainous area.
作者
张雪茂
董廷旭
严霜
邱豪
Xuemao Zhang;Tingxu Dong,Shuang Yan,Hao Qiu(School of Resource and Environmental Engineering,Mianyang Teachers’College,Mianyang Sichuan)
出处
《世界生态学》
2019年第2期104-114,共11页
International Journal of Ecology
基金
校级自然科学基金项目(MYSY2018T003)
绵阳市国土资源学会应用研究项目(MY201803)。
