کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6381762 1625832 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Soil seed bank and aboveground vegetation along a successional gradient on the shores of an oxbow
ترجمه فارسی عنوان
بانک بذر خاکی و پوشش گیاهی در سطح زمین در امتداد یک گرادیان جانشینی در ساحل اکلوبو
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
چکیده انگلیسی
The soil seed bank and aboveground vegetation were investigated on the shores of the Tian-e-zhou oxbow in China along a successional gradient (i.e. mud flat, sedge and graminoid marsh, sedge and reed meadow, and willow shrub). We expected to explore the following questions: (1) Does seed density and species richness of the soil seed banks decline during succession? (2) Does the similarity between the soil seed bank and aboveground vegetation decrease during succession? (3) Can soil seed banks be considered as a potential source of material for wetland restoration? Results revealed that 19 species (about 61% of the species in the mud flat stage) were found in all successional stages. Both seed density and species richness increased with succession. Species of the soil seed bank showed greater compositional similarity (Sørensen's index) across four stages than did the aboveground vegetation. The similarity between soil seed bank and aboveground vegetation increased as succession proceeds. In conclusion, the seed bank of Tian-e-zhou oxbow wetland contains a relatively abundant seed density and species richness. The soil seed bank could thus play an important role in the restoration management of oxbow wetlands. However, the high dominance of mudflat annuals and the absence of most dominant perennials in the soil seed bank suggest that target species may require active introduction for further restoration
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquatic Botany - Volume 110, October 2013, Pages 67-77
نویسندگان
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