Effects of Different Land-Use Systems on Soil Aggregates: A Case Study of the Loess Plateau (Northern China)

doi:10.3390/su9081349

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Effects of Different Land-Use Systems on Soil Aggregates: A Case Study of the Loess Plateau (Northern China)
	Kalhoro, Shahmir Ali 1,2; Xu, Xuexuan 1; Chen, Wenyuan 1; Hua, Rui 1; Raza, Sajjad 3; Ding, Kang 1; Xu, XX (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2017
发表期刊	SUSTAINABILITY
ISSN	2071-1050
通讯作者邮箱	shahmirali@nwsuaf.edu.cn ; xuxuexuan@nwsuaf.edu.cn ; chenweny@nwsuaf.edu.cn ; huar@nwsuaf.edu.cn ; sjad.rza@gmail.com ; dingkang@nwsuaf.edu.cn
卷号	9 期号:8
摘要	Soil aggregate stability is an important indicator for controlling soil losses and can improve soil quality, particularly in an area such as the Loess Plateau. The objective of this study was to estimate the differences in soil aggregates across six different land-use systems (grassland, apple orchard, abandoned apple orchard, cropland maize, cropland wheat, and shrub-grassland). For this purpose, dry and wet sieving techniques were employed to assess aggregate content and aggregate stability. Higher percentages of water stable aggregates were observed in the abandoned apple orchard and shrub-grassland at 63% and 61%, respectively. The maximum dry aggregate stability (%) was recorded at 78% and 77% in both wheat cropland and common apple orchard, and the abandoned apple orchard was only 74%. Both mean weight diameters and geometric mean diameters of aggregate were recorded as higher in grassland, shrub-grassland, and the abandoned apple orchard, than the other land uses. The formation of soil aggregates and their stability were positively correlated with soil organic carbon content and root biomass of different plant communities. Higher amounts of soil organic carbon content were noted in the abandoned apple orchard, common apple orchard, and natural grassland at the 0-20 cm soil layer. The results of the correlation coefficient showed a positive significant correlation between the mean weight diameter, geometric diameter, root biomass, and soil organic carbon content. Conclusively, the type of land use affected the soil aggregation and distribution of size fractions; the small fractions of the aggregates formed large fractions by combining with fresh organic matter, and increased soil organic carbon concentrations were closely linked with the formation of macro-aggregates. Thus, converting slope farmland to forestland and grassland could improve water-stable aggregate and reduce soil disturbances in areas (like the Loess Plateau) with the highest erosion risk.
关键词	Soil Aggregates Land-use System Soc Loess Plateau
学科领域	Science & Technology - Other Topics ; Environmental Sciences & Ecology
DOI	10.3390/su9081349
URL	查看原文
收录类别	SCI
出版地	BASEL
语种	英语
WOS记录号	WOS:000408861800064
出版者	MDPI AG
项目资助者	National Natural Science Foundation of China (NSFC) [41471439, 41171421]; China Scholarship Council (CSC) ; National Natural Science Foundation of China (NSFC) [41471439, 41171421]; China Scholarship Council (CSC)
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7946
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Xu, XX (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Lasbela Univ Agr Water & Marine Sci, Fac Agr, Uthal 90150, Pakistan 3.Univ Agr Faisalabad, Inst Soil & Environm Sci, Faisalabad 38040, Pakistan
推荐引用方式 GB/T 7714	Kalhoro, Shahmir Ali,Xu, Xuexuan,Chen, Wenyuan,et al. Effects of Different Land-Use Systems on Soil Aggregates: A Case Study of the Loess Plateau (Northern China)[J]. SUSTAINABILITY,2017,9(8).
APA	Kalhoro, Shahmir Ali.,Xu, Xuexuan.,Chen, Wenyuan.,Hua, Rui.,Raza, Sajjad.,...&Xu, XX .(2017).Effects of Different Land-Use Systems on Soil Aggregates: A Case Study of the Loess Plateau (Northern China).SUSTAINABILITY,9(8).
MLA	Kalhoro, Shahmir Ali,et al."Effects of Different Land-Use Systems on Soil Aggregates: A Case Study of the Loess Plateau (Northern China)".SUSTAINABILITY 9.8(2017).