A close correlation exists between soil aggregation and soil organic carbon sequestration. Soil organic matter is the main material needed in the formation of soil aggregates and soil aggregates provide a place for soil organic matter to sequester carbon. The effects of different revegetation types on the aggregation of soil particles, the stability of soil aggregates, as well as carbon and fractions in soil aggregates were studied in a loess hilly鄄gully area; soil organic carbon and fraction忆s micro鄄response to different revegetation types are discussed. The results show the distribution of soil aggregates has a " V冶 distribution under a variety of revegetation and restoration measures. Small (< 0. 25 mm) and large (> 5. 0 mm) particle sizes form the most aggregates. The next largest aggregate size classes were 2-5 mm and 0. 25-1. 0 mm,
The type of vegetation present in an area directly impacts soil characteristics and has a significant influence on the formation and stability of soil aggregates. Water鄄stable aggregates are the best indicator of soil stability and reflect the ability of a soil to resist erosion on the Loess Plateau of China. Soil samples were collected from both forest and forest steppe vegetation types in the Dong Zigou and Zhang Jiahe catchments, which are located in the Yanhe Catchment of the An Sai Hilly鄄Gully Region. This study investigated the characteristics of soil water鄄stable aggregate using the Le Bissonnais ( LB) and Yoder methods; the results of three LB treatments ( fast wetting ( FW) , slow wetting ( SW) , and wetting stirring ( WS) ) were then compared and the mean weight diameter ( MWD) of soil aggregates and erodibility factor ( K) value were
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