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Detecting near-surface soil freeze-thaw cycles in high-altitude cold regions is important for understanding the Earth’s surface system, but such studies are rare. In this study, we detected the spatial-temporal variations in near-surface soil freeze-thaw cycles in the source region of the Yellow River (SRYR) during the period 2002–2011 based on data from the Advanced Microwave Scanning Radiometer...
Haloxylon ammodendron (C. A. Mey.) is one of the economically and ecologically important desert trees used for sand fixation. The ovary of H. ammodendron is found not to swell after flowering in spring until at the end of August or early September in western China. However, what happens for ovary at anatomic level in that period and which crucial ecological factor regulates the phenomenon of H. ammodendron...
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