สืบค้นงานวิจัย
Effect of gap sizes on specific leaf area and Chlorophyll contents at the Castanopsis kawakamii Natural Reserve Forest, China
Buajan S. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Effect of gap sizes on specific leaf area and Chlorophyll contents at the Castanopsis kawakamii Natural Reserve Forest, China
ผู้แต่ง / หัวหน้าโครงการ (EN): Buajan S.
บทคัดย่อ (EN): The two hemispherical photographs (THP) method was used to calculate gap area. The areas of nine forest gaps were measured. Meanwhile, non-gap areas were selected as control groups with areas of 225 m 2 . Plots with areas of 25 m 2 in five different directions within gap and non-gap areas were conducted for collecting leaf samples. To determine the effect of gap size on leaf traits the selected traits were leaf area (LA), leaf dry mass (LDM), specific leaf area (SLA), Chlorophyll a (Chl a), chlorophyll b (Chl b), total chlorophyll (TChl), and carotenoid (CAR). Leaves were collected from the regeneration layer (< 2 cm DBH, height 2-5 m) to measure the leaf traits in winter and summer seasons. Results confirmed significant positive correlations between LA and LDM in the small, medium, large gap sizes, and non-gap areas (r 2 = 0.913, 0.827, 0.897, and 0.939, p < 0.01, respectively). On the contrary, relationships between LDM and SLA in the small, medium, large gap sizes, and non-gap areas have significant negative correlations (r 2 = -0.269, -0.259, -0.417, and -0.505, p < 0.05, respectively). The effect of gap size on the average Chl a, Chl b, TChl, and CAR varies by the season. During the summer season, the highest chlorophyll contents were recorded in the small gap size and the lowest in the non-gap area, while during the winter season, the highest values of these chlorophyll contents appeared in the medium gap size. Moreover, the directions within the gap in the medium gap size of the summer season had an effect on the Chl a and TChl. © 2018 by the authors.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055741626&doi=10.3390%2ff9110682&partnerID=40&md5=94374af059c91315a545f7460475f4d1
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Castanopsis kawakamii
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Buajan S.. "Effect of gap sizes on specific leaf area and Chlorophyll contents at the Castanopsis kawakamii Natural Reserve Forest, China". ไม่ระบุหน่วยงาน. ม.ป.ป.

Buajan S.. "Effect of gap sizes on specific leaf area and Chlorophyll contents at the Castanopsis kawakamii Natural Reserve Forest, China". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Effect of gap sizes on specific leaf area and Chlorophyll contents at the Castanopsis kawakamii Natural Reserve Forest, China
Buajan S.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
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