Grassland gap effects on Elymus dahuricus Turcz. seedling emergence, survival and growth
作者： M.Y. Zhang , D. Huang , K. Wang , Y.J. Zhang , C.J. Wang
DOI: 10.1016/J.JARIDENV.2011.09.009
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摘要: Abstract The influence of gaps in degraded semi-arid steppe grassland northern China on the establishment Elymus dahuricus seeds sown for restoration purpose was investigated. There were seven treatments: no gap (control; CK), shoot and shoot + root each with diameters 10, 20 40 cm. Shoot formed by removing above- below-ground biomasses without restricting re-growth roots rhizomes back into gap, barriers root extension gaps. Seedling emergence, survival growth after 85 days seed sowing recorded. Increase size increased soil temperature moisture especially Survival seedlings followed a similar response pattern. It concluded that creating gaps, particularly larger would assist seedling to restore grassland.
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