摘要
21世纪以来,受气候变化和人类活动的影响,黄河流域生态系统的固碳能力发生了剧烈变化,评价黄河流域生态系统固碳能力对推动该区域生态保护和高质量发展具有重要意义,但目前开展的相关研究却显得尤为不足。本文以黄河下游的山东省东营市为例,在大量野外采样数据的基础上,采用CEVSA ES模型,对研究区22年来的生态系统的固碳能力进行模拟。在此基础上,利用ArcGIS和ENVI等软件,采用线性变化趋势分析的方法,对于研究区生态系统的固碳能力的时空变化趋势进行分析。研究结果表明:东营市中部和南部少部分地区净生态系统生产力增长较快,而北部和滨海地区的增长相对缓慢。随着时间的推移,整体上净生态系统生产力呈现增长趋势。总初级生产力在东营市中部和南部少部分地区增加较快,北部和滨海地区增长缓慢,随着时间的增长,总初级生产力总体呈现增长状态。东营市生态系统呼吸在滨海和南部少部分地区增长较快,中部地区生态系统呼吸呈递减趋势,随着时间的推移,总体上生态系统呼吸呈现下降趋势。该结果对黄河下游生态系统固碳能力的变化分析具有重要意义。
Since the 21st century,the carbon sequestration capacity of the Yellow River Basin ecosystem has changed significantly due to climate change and human activities.Evaluating the carbon sequestration capacity of the ecosystem in the Yellow River Basin is of great significance for promoting ecological protection and high-quality development in the region.But the current related research is particularly insufficient.In this paper,taking Dongying city in Shandong province in the lower reaches of the Yellow River as an example,based on a large amount of field sampling data,by using CEVSA ES model,the carbon sequestration capacity of the ecosystem in the study area over the past 22 years has been simulated.On this basis,by using ArcGIS and ENVI softwares,and a linear trend analysis method,the spatiotemporal variation trend of the carbon sequestration capacity of the ecosystem in the study area has been analyzed.It is indicated that the net ecosystem productivity in the central and southern parts of Dongying city has increased rapidly,while the growth in the northern and coastal areas is relatively slow.Over time,the overall net ecosystem productivity shows an increasing trend.The total primary productivity has increased rapidly in a small number of areas in the central and southern parts of Dongying city,while the growth in the northern and coastal areas is slow.The overall primary productivity has shown an increasing state.The ecosystem respiration has grown rapidly in a small number of coastal and southern areas,while the ecosystem respiration in the central region has shown a decreasing trend.The overall ecosystem respiration has shown a downward trend.This result is of great significance for the analysis of changes in carbon sequestration capacity of the ecosystem in the lower reaches of the Yellow River.
作者
窦文骏
巴音吉
邢为正
孟雪
DOU Wenjun;BA Yinji;XING Weizheng;MENG Xue(Yantai Coastal Zone Geological Survey Center of China Geological Survey,Shandong Yantai 265799,China;Resources and Environmental Engineering College of Ludong University,Shandong Yantai 264025,China)
出处
《山东国土资源》
2024年第6期45-50,共6页
Shandong Land and Resources
基金
黄河三角洲自然资源综合调查监测与评价(DD20220886)
黄河流域中下游(河南段)水沙相互作用及生态环境承载力调查监测与评价(DD20220885)。
关键词
生态系统
固碳能力
CEVSA
ES模型
黄河下游
山东东营
Ecosystem
carbon sequestration capacity
CEVSA ES model
the lower reaches of the Yellow River
Dongying city in Shandong province
