郑州市生境质量时空演变评价及其影响因素分析

Temporal and Spatial Evolution of Habitat Quality in Zhengzhou and Its Influencing Factors

生境质量是农业生态系统健康和生物多样性维护的重要指标,生境质量的评估对该区域经济可持续发展有着重要的价值与现实意义。探究郑州市的生境质量及其变化规律,为郑州市在区域农业生态环境保护与发展之间做出权衡,并提供理论支持,以建设高质量生态宜居城市。运用InVEST模型中的Habitat Quality模块,基于2018年、2020年和2022年3期的土地利用数据,分析了郑州市的生境质量及其变化情况。郑州市的整体生境质量处于中等偏上水平并且有下滑的趋势,主要受到城市化进程加速、土地开发、建筑施工、耕地转建设用地等人类活动的影响。同时,郑州市生境质量呈现出由中心向外围递减的空间分布特征,以及由西北向东南递减的空间差异特征。在时间上,郑州市生境质量呈现出波动下降的趋势,主要受到经济发展、产业结构转型、能源消耗增加、非法采矿等因素的影响。保护生态环境、提高生境质量可以为郑州市的农业生态系统健康和生物多样性维护提供参考。本研究不仅可以为其他类似区域的生境质量评估提供参考和借鉴,也可以为InVEST模型在中国区域尺度上的应用提供实践案例。

Habitat quality is an important indicator of agricultural ecosystem health and biodiversity maintenance,and the assessment of habitat quality has important value and practical significance for the sustainable economic development of the region.To explore the habitat quality and its change pattern of Zhengzhou City,to balance the protection and development of regional agricultural ecological environment for Zhengzhou City,and to provide theoretical support for building a high-quality ecological livable city.Using the Habitat Quality module in the InVEST model,based on the land use data of three periods in 2018,2020 and 2022,the habitat quality and its change situation of Zhengzhou City were analyzed.The overall habitat quality of Zhengzhou City was at a medium-high level and had a downward trend,mainly affected by human activities such as accelerated urbanization,land development,construction,farmland conversion to construction land,etc.At the same time,the habitat quality of Zhengzhou City showed a spatial distribution characteristic of decreasing from the center to the periphery,and a spatial difference characteristic of decreasing from northwest to southeast.In terms of time,the habitat quality of Zhengzhou City showed a fluctuating downward trend,mainly affected by factors such as economic development,industrial structure transformation,energy consumption increase,illegal mining,etc.Protecting the ecological environment and improving the habitat quality can provide reference for the agricultural ecosystem health and biodiversity maintenance of Zhengzhou City.This study can not only provide reference and reference for the habitat quality assessment of other similar regions,but also provide practical cases for the application of InVEST model at the regional scale in China.