干旱区生态环境知识资源中心(Arid): Effects of Dodonaea viscosa Afforestation on Soil Nutrients and Aggregate Stability in Karst Graben Basin

Arid

DOI	10.3390/land11081140
	Effects of Dodonaea viscosa Afforestation on Soil Nutrients and Aggregate Stability in Karst Graben Basin
	Liu, Lijun; Gou, Guanglin; Liu, Jinxia; Zhang, Xuebin; Zhu, Qilin; Mou, Jinxia; Yang, Ruoyan; Wan, Yunxing; Meng, Lei; Tang, Shuirong; Wu, Yanzheng; He, Qiuxiang
通讯作者	He, QX
来源期刊	LAND
EISSN	2073-445X
出版年	2022
卷号	11 期号:8
英文摘要	Dodonaea viscosa is widely cultivated in the karst graben basin and is crucial for recovering land after rocky desertification. However, the effect of long-time D. viscosa afforestation on changes in the quality of soil remains unclear. Soil nutrients and aggregate composition can be used to evaluate the beneficial effects of afforestation of D. viscosa in improving soil functional stability. In this study, soil nutrients and aggregate stability were investigated using cropland, 10-year, 20-year, and 40-year D. viscosa afforestation and secondary succession shrub. Compared to the cropland, D. viscosa afforestation significantly increased the soil water content (WC), soil organic carbon (SOC), and total nitrogen (TN) contents, with an enhanced effect observed with prolonged afforestation. Soil nutrient contents under D. viscosa afforestation rapidly reached the level of the shrub. Dodonaea viscosa afforestation promoted the formation of >2 mm aggregates and decreased the ratio of 0.053-0.25 mm aggregates, which varied with afforestation years. Compared to the cropland, the content of >0.25 mm water-stable aggregates (R->0.25), mean weight diameter (MWD), and geometric mean weight diameter (GMD) of soil increased exponentially. However, soil erodibility factor (K) and unstable aggregates index (E-It) decreased exponentially with prolonged D. viscosa afforestation, and the latter two indicators did not reach the level of the shrub. These results indicated that soil nutrients, aggregate stability, and erosion resistance increased with prolonged D. viscosa afforestation. However, the aggregate stability and erosion resistance exhibited by D. viscosa could not reach the level of secondary shrub for a long time.
英文关键词	karst graben basin Dodonaea viscosa soil nutrients aggregate composition aggregate stability
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000846736100001
WOS关键词	DRY-HOT VALLEY ; ORGANIC-MATTER ; VEGETATION RESTORATION ; CARBON ; MANAGEMENT ; QUALITY ; SEQUESTRATION ; FRACTIONS ; FOREST ; TREES
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393685
推荐引用方式 GB/T 7714	Liu, Lijun,Gou, Guanglin,Liu, Jinxia,et al. Effects of Dodonaea viscosa Afforestation on Soil Nutrients and Aggregate Stability in Karst Graben Basin[J],2022,11(8).
APA	Liu, Lijun.,Gou, Guanglin.,Liu, Jinxia.,Zhang, Xuebin.,Zhu, Qilin.,...&He, Qiuxiang.(2022).Effects of Dodonaea viscosa Afforestation on Soil Nutrients and Aggregate Stability in Karst Graben Basin.LAND,11(8).
MLA	Liu, Lijun,et al."Effects of Dodonaea viscosa Afforestation on Soil Nutrients and Aggregate Stability in Karst Graben Basin".LAND 11.8(2022).