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- W3115990198 abstract "<p>Spatial heterogeneity has been widely used in the study of succession in abandoned croplands worldwide, and it is often accompanied by time heterogeneity. However, the effect of temporal heterogeneity on succession dynamics over decades is not well understood. Here, we used croplands with same history in northwest China that were abandoned in 1998, 1999, and 2000 and continuously monitored vegetation characteristics for ten years. Croplands were left undisturbed throughout the study. Non-metric multidimensional scaling was used to interpret changes in the plant community, and taxonomic and functional diversity measures were compared in three treatment over time. Our results show that the directions of succession in all three croplands were similar, from single superior community (<em>Salsolacollina</em> Pall.) with higher aboveground biomass to multi-superior community (<em>Artemisia capillaris</em> Thunb., <em>Stipa bungeana</em> Trin., <em>Lespedeza davurica</em> (Laxm.) Schindl, Heteropappus altaicus (Willd.) Novopokr) with lower aboveground biomass. Taxonomic and functional diversity increased rapidly in the first 4&#8211;6 years, followed by a slow increase, decrease or stabilization. Temporal heterogeneity had no effect on species richness after the 7th year, on the Shannon-Wiener index, species evenness, modified functional attribute diversity, or functional divergence after the 8th year, or functional evenness after 5th year. We conclude that temporal heterogeneity can affect the process of secondary succession but has no effect on the direction of community succession. Our findings provide evidence for using temporal heterogeneity to study succession in abandoned croplands in semi-arid areas.&#160;</p>" @default.
- W3115990198 created "2021-01-05" @default.
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- W3115990198 date "2020-03-23" @default.
- W3115990198 modified "2023-10-16" @default.
- W3115990198 title "Temporal heterogeneity affects the process of succession but not its direction in abandoned croplands in a semi-arid area of northwest China" @default.
- W3115990198 doi "https://doi.org/10.5194/egusphere-egu2020-12288" @default.
- W3115990198 hasPublicationYear "2020" @default.
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