کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6459250 1421358 2017 11 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Variation in stand density, black spruce individual growth and plant community following 20 years of drainage in post-harvest boreal peatlands
ترجمه فارسی عنوان
تنوع در تراکم پایه، رشد و تکثیر صنوبر سیاه پوست و جامعه گیاهی بعد از 20 ساله زهکشی در سرزمین های سرخ مایل به کوهی پس از برداشت
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


- Drainage helped post-harvest black spruce peatland sites to form a forested stand.
- Rich and thin organic soils were invaded by competitive species.
- Moderately rich sites reacted favorably to drainage.
- Poor and very poor sites reacted locally and showed minor growth increase.

Drainage can help restore hydrological conditions conducive to the growth of black spruce (Picea mariana) seedlings on logged forested peatlands. The impact of drainage was assessed by analysing the variation in stand density at stump height, black spruce seedling annual diameter growth and composition of plant communities on 20 of the oldest operationally drained sites in Quebec's James Bay region. These sites, each consisting of a drained, post-harvest area and a corresponding undrained, post-harvest control area, were classified into five ecosites based on soil characteristics and plant communities. The ecosites studied varied from those with rich mineral soils covered with a shallow organic layer to very poor, deep, organic soils. Results showed that the growth response of black spruce seedlings following drainage was strongly dependent on the ecosite. Ecosites RE37 and rich RE39 showed a substantial and steady growth response of black spruce to drainage over time. Therefore, drainage caused a significant increase in stand density and growth rate of black spruce seedlings in moderately rich ecosites. In the other ecosites studied, the peat layer was either too thick (poor RE39 and very poor RE39) or too shallow (RE26) for black spruce stand densities and individual stems growth to increase with drainage, compared to those of the control areas.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 400, 15 September 2017, Pages 321-331
نویسندگان
, ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت