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Frontiers Variations and influencing factors of soil organic …

WebIn China, abandonment of farmland has occurred in more than 100 counties due to the rapid economic development and urbanization that started in the 1990s [11,12]. WebSuccession is a series of progressive changes in the composition of an ecological community over time. In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In … how fast is the hubble telescope moving

Tracking the Causes and Consequences of Land Change - USGS

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