کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6541717 | 1421340 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The demographics and regeneration dynamic of hickory in second-growth temperate forest
ترجمه فارسی عنوان
جمعیت شناسی و پویایی بازسازی هیکور در جنگل های ثروتمند
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کلمات کلیدی
کریا، دندرونگنولوژی، موجودی جنگل، چشم انداز، نیویورک، نیویورک بلوط هیکور، جنگلداری،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی
Hickory (Carya spp.) is an economically and ecologically important genus to the eastern deciduous forest of North America. Yet, much of our knowledge about the genus comes from observational and anecdotal studies that examine the genus as a whole, or from research that examines only one species, in only one part of its range. Here, we use data sets from three different spatial scales to determine the demographics and regeneration patterns of the four most abundant hickory species in the Northeastern United States. These species were the shagbark (C. ovata), pignut (C. glabra), mockernut (C. tomentosa), and bitternut (C. cordiformis) hickories. We examine trends in hickory demographics, age class and structure at the regional scale (New England and New York), the landscape scale (a 3000â¯ha forest in northwestern Connecticut) and at the stand scale (0.25-5â¯ha). Our analysis at all three scales show that individual hickory species are site specific with clumped distribution patterns associated with climate and geology at regional scales; and with soil moisture and fertility at landscape scales. Although hickory represents a fairly small percent of the total basal area (2.5%) across a forest landscape, upland oak-hickory stands can have a much higher basal area of hickory (49%), especially in the larger height and diameter classes. Additionally, dendrochronological results show that hickory trees in mature, second growth forests originated or were released over a half-century long period of stand development; but patterns in seedling recruitment in the understory is continuous and builds up as advance regeneration over decades, with some surviving in a suppressed state for over forty years. This contrasts with oak where recruitment of regeneration is strongly pulsed in association with mast years.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volumes 419â420, 1 July 2018, Pages 187-196
Journal: Forest Ecology and Management - Volumes 419â420, 1 July 2018, Pages 187-196
نویسندگان
Aaron B. Lefland, Marlyse C. Duguid, Randall S. Morin, Mark S. Ashton,