Global patterns of human and livestock respiration

被引：13

作者：

Cai, Qixiang ^{[1
]}

Yan, Xiaodong ^{[1
]}

Li, Yafei ^{[1
]}

Wang, Leibin ^{[1
]}

机构：

[1] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China

来源：

SCIENTIFIC REPORTS | 2018年 / 8卷

基金：

中国国家自然科学基金;

关键词：

SOIL CO2 PRODUCTION; TEMPERATURE SENSITIVITY; METABOLIC-RATE; CARBON-CYCLE; TRANSPORT; SIZE; FOREST; RATES;

D O I：

10.1038/s41598-018-27631-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Carbon emissions from human and animals has been neglected by previous studies in estimating the carbon cycle of ecosystem. This study first estimates the spatial-temporal patterns of carbon emissions density from human and livestock respiration among countries around the world from 1960-2014. Then we simulate the soil heterotrophic respiration (R-h) to analyze the contribution of human and livestock respiration to total heterotrophic respiration of global ecosystem. Our results show that the respiration of human and livestock respectively contribute more than 1% of the total carbon output from heterotrophic respiration in most countries and affect more than 5% in almost half of the countries. Moreover, the effect of livestock respiration is slightly greater than that of human beings. Therefore, the estimation of heterotrophic respiration should not only consider Rh in these countries, human and livestock respiration are equally important in the research on regional carbon budget.

引用

页数：7

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