干旱区生态环境知识资源中心(Arid): Afforestation Influences Soil Aggregate Stability by Regulating Aggregate Transformation in Karst Rocky Desertification Areas

Arid

DOI	10.3390/f14071356
	Afforestation Influences Soil Aggregate Stability by Regulating Aggregate Transformation in Karst Rocky Desertification Areas
	Zhu, Dayun; Yang, Qian; Zhao, Yingshan; Cao, Zhen; Han, Yurong; Li, Ronghan; Ni, Ju; Wu, Zhigao
通讯作者	Zhu, DY
来源期刊	FORESTS
EISSN	1999-4907
出版年	2023
卷号	14 期号:7
英文摘要	Surface vegetation has a substantial impact on soil aggregate stability, which is an important indicator of soil quality. However, there is still limited research on the response of soil aggregate stability indicators and the organic carbon, total nitrogen, and total phosphorus content in soil aggregates for different vegetation patterns in rocky desertification fragile ecological areas. Therefore, in order to study the effects of different vegetation restoration models on soil aggregate stability and aggregate related nutrient content and their promoting relationships in the karst rocky desertification areas in southwest China, soil samples under three artificial restoration vegetation measures (Juglans regia L.-Rosa roxburghii Tratt., Rosa roxburghii Tratt.-Lolium perenne L., Juglans regia L.-Lolium perenne L.) were collected in 0-10 cm and 10-20 cm soil, and the traditional farmland (Zea mays L.) was used as the control, combined with dry and wet sieving experiments for the research and analysis. The results showed that there were significant differences in the distribution of aggregates and soil nutrients among the four types of plots. Compared with traditional agricultural land, artificial afforestation increased the content of soil large macroaggregates (LMAs) and decreased the proportion of microaggregates (MIAs) and silt+clay (SCA), which enhanced the soil aggregate stability and reduced the soil fragmentation and erodibility. The afforestation restoration increased the content of soil aggregate-related SOC, TN, and TP, and increased with the decrease in the aggregate particle size. Research has found that soil aggregate stability indicators are significantly influenced by the particle size distribution of soil aggregates. In the positive succession process of vegetation types, soil nutrient accumulation is controlled by changes in the soil aggregate particle size, which affects the soil aggregate stability and reduces soil erodibility, thereby protecting the soil nutrient loss. The composite management of forest and irrigation in degraded ecological areas has certain reference and indicative significance for ecological restoration in rocky desertification areas.
英文关键词	soil aggregate stability soil nutrients vegetation restoration karst rocky desertification
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001038220300001
WOS关键词	ORGANIC-CARBON ; EROSION ; MATTER ; ERODIBILITY ; DEGRADATION ; NUTRIENTS ; PATTERNS ; REGION
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/2XILL650/396429
推荐引用方式 GB/T 7714	Zhu, Dayun,Yang, Qian,Zhao, Yingshan,et al. Afforestation Influences Soil Aggregate Stability by Regulating Aggregate Transformation in Karst Rocky Desertification Areas[J],2023,14(7).
APA	Zhu, Dayun.,Yang, Qian.,Zhao, Yingshan.,Cao, Zhen.,Han, Yurong.,...&Wu, Zhigao.(2023).Afforestation Influences Soil Aggregate Stability by Regulating Aggregate Transformation in Karst Rocky Desertification Areas.FORESTS,14(7).
MLA	Zhu, Dayun,et al."Afforestation Influences Soil Aggregate Stability by Regulating Aggregate Transformation in Karst Rocky Desertification Areas".FORESTS 14.7(2023).