干旱区生态环境知识资源中心(Arid): Soil Aggregate Stability and Carbon Density in Three Plantations in the Loess Plateau, China

Arid

DOI	10.3390/f13071096
	Soil Aggregate Stability and Carbon Density in Three Plantations in the Loess Plateau, China
	Dong, Lili; Kou, Meng
通讯作者	Kou, M
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:7
英文摘要	Afforestation plays an important role in mitigating soil erosion and improving soil quality in the Loess Plateau. However, there is no consistent conclusion about the effect of tree species on soil properties. Robinia pseudoacacia, Pinus tabulaeformis, and Malus pumila plantations were selected as the research objects. Soil indices such as the content of soil organic carbon (SOC) and inorganic carbon (SIC), carbon density, soil aggregate stability, and bulk density were selected to study the effects of different plantations on soil properties. The mean weight diameter (MWD) was calculated to evaluate soil aggregate stability. The results showed that: (1) MWD of R. pseudoacacia was 22%-67% lower than that of P. tabuliformis across the 0-80 cm soil layers. MWD of M. pumila was 27%-45% and 57%-78% lower than that of R. pseudoacacia and P. tabuliformis across 0-50 cm layers. (2) SOC of P. tabuliformis was 61%-127% and 67%-148% higher than that of R. pseudoacacia and M. pumila, respectively, while SIC was 55%-82% and 12%-14% lower than that of R. pseudoacacia and M. pumila. (3) Soil carbon density, including soil organic carbon density and inorganic carbon density, of P. tabuliformis was 36%-49% and 3%-31% lower than that of R. pseudoacacia and M. pumila, respectively. (4) Aggregate organic carbon increased with increasing aggregate size, while inorganic carbon decreased. Water-stable aggregates with larger sizes had higher soil organic carbon and lower carbonate calcium. (5) The inorganic carbon in soil was both a binder and a dispersant of soil aggregates, which depends on its content. P. tabuliformis should be planted in the semi-arid area of the Loess Plateau in China, because this species was able to increase soil organic matter and improve soil structure compared with the other two species.
英文关键词	soil water-stable aggregate mean weight diameter soil carbon sequestration calcareous soils
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:000833383700001
WOS关键词	ORGANIC-MATTER ; WATER REPELLENCY ; FOREST ; NITROGEN ; RESTORATION ; PHOSPHORUS ; BIOMASS
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392623
推荐引用方式 GB/T 7714	Dong, Lili,Kou, Meng. Soil Aggregate Stability and Carbon Density in Three Plantations in the Loess Plateau, China[J],2022,13(7).
APA	Dong, Lili,&Kou, Meng.(2022).Soil Aggregate Stability and Carbon Density in Three Plantations in the Loess Plateau, China.FORESTS,13(7).
MLA	Dong, Lili,et al."Soil Aggregate Stability and Carbon Density in Three Plantations in the Loess Plateau, China".FORESTS 13.7(2022).