干旱区生态环境知识资源中心(Arid): Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems

Arid

DOI	10.1080/09064710.2024.2312934
	Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems
	Munjonji, Lawrence; Innocentia, Hlengiwe Ntuli; Ayisi, Kingsley Kwabena; Dlamini, Phesheya; Mabitsela, Kabisheng Emmanuel; Lehutjo, Carol Mmapula; Zwane, Phumlani Sabelo Magnificent
通讯作者	Munjonji, L
来源期刊	ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
ISSN	0906-4710
EISSN	1651-1913
出版年	2024
卷号	74 期号:1
英文摘要	Soil carbon dioxide (CO2) fluxes are a critical component in understanding carbon sequestration. In sub-Saharan Africa, empirically measured CO2 emissions data from diverse land-use systems is limited. Soil CO2 emission rates were measured in the Limpopo Province, South Africa for 12 months at two-week intervals in natural systems (forest and shrubland) and commercially managed orchards (avocado and citrus) to establish seasonal dynamics of soil CO2 emissions across these land-use systems. The results showed a variation in emission rates with the variation depending on the season. In the spring and winter, soil CO2 emission rates in citrus were four times higher than in the shrubland due to higher moisture levels. However, in the summer season, the forest emission rates were 40% higher than in citrus due to higher soil organic carbon content. Organic carbon stocks were higher in the forest (1.19 kg/m(2)) compared to the other land uses. This study revealed differences in soil CO2 emission rates among land-use systems, with the cumulative amount of CO2 emitted over a 12-month period following the order: forest (39.3 tons/ha) > citrus (36.1 tons/ha) > shrubland (28.1 tons/ha) > avocado (26.9 tons/ha). Thus, understanding the emission patterns from various ecosystems can inform strategies for mitigating greenhouse gas emissions.
英文关键词	Carbon stocks orchards forest soil temperature soil moiture
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001162647600001
WOS关键词	LITTER DECOMPOSITION ; ENZYME-ACTIVITIES ; RESPIRATION ; MOISTURE ; TEMPERATURE ; CARBON
WOS类目	Agronomy ; Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402589
推荐引用方式 GB/T 7714	Munjonji, Lawrence,Innocentia, Hlengiwe Ntuli,Ayisi, Kingsley Kwabena,et al. Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems[J],2024,74(1).
APA	Munjonji, Lawrence.,Innocentia, Hlengiwe Ntuli.,Ayisi, Kingsley Kwabena.,Dlamini, Phesheya.,Mabitsela, Kabisheng Emmanuel.,...&Zwane, Phumlani Sabelo Magnificent.(2024).Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems.ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,74(1).
MLA	Munjonji, Lawrence,et al."Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems".ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE 74.1(2024).