净区域生产率的时空空间模式及其在中国奥尔多斯的原因
Yurong Zheng1, Shouhang Du2, Wenbin Sun1
1College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China.
Environmental science and pollution research international
|February 24, 2024
概括
奥尔多斯表现出陆地碳汇效应,净区域生产率 (NRP) 平均为70.334 g·m-2·a-1 . 这种碳汇受植被 (NDVI) 和降水的影响,在大多数地区显示出日益增长的趋势.
科学领域:
- 地球和环境科学 地球和环境科学
- 生态生态学 生态生态学
- 气候科学 气候科学
背景情况:
- 对于区域碳管理来说,对陆地碳汇的评估至关重要.
- 净生态系统生产率 (NEP) 有局限性,因为它忽略了物理过程排放和人为碳泄漏.
- 净区域生产率 (NRP) 为区域碳汇动态提供了更全面的指标.
研究的目的:
- 用NRP分析奥尔多斯碳汇的模式,趋势和驱动因素.
- 评估该地区碳汇的空间异质性和时间动态.
主要方法:
- 雇员净地区生产率 (NRP) 作为碳汇分析的主要指标.
- 利用规范差异植被指数 (NDVI) 和降水数据来评估影响因素.
- 分析了环境因素对NRP的影响的空间模式,趋势和区域变化.
主要成果:
- 奥尔多斯证明了一种碳沉积效应,空间平均NRP为70.334g·m-2·a-1 .
- 在南方地区,NRP表现出显著的空间变化 (变化系数:68.035%),在南方地区的价值更高.
- NDVI是控制空间异质性的主要因素,而降水是主要的气候驱动因素.
结论:
- 国家碳排放计划是了解超越国家碳排放计划的区域碳汇动态的一个重要指标.
- 植被的绿色 (NDVI) 和水热条件都对奥尔多斯的碳汇强度产生重大影响.
- 在奥尔多斯的陆地碳汇显示出总体上升的趋势,由协同环境因素驱动.
更多相关视频
10:28Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
Published on: June 13, 2020
5.8K
05:04Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
Published on: July 14, 2023
400
相关概念视频
Primary Production
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
Microbial Mats
Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
Marine Microbial Ecology
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Soil Microbial Ecology
Soil microbial ecology is defined by highly diverse, spatially structured communities that drive nutrient cycling, organic matter turnover, and overall ecosystem stability. Although a gram of soil can contain thousands of bacterial and archaeal taxa, the ecological processes they mediate are even more crucial for sustaining terrestrial life.Microhabitats and NichesSoil is a heterogeneous mixture of minerals, organic matter, water, and air. Microbes inhabit distinct microhabitats formed by...
