scholarly journals Examination of Vertical Distribution of Fine Root Biomass in a Tropical Moist Forest of the Central Amazon, Brazil

2014 ◽  
Vol 48 (2) ◽  
pp. 231-235 ◽  
Author(s):  
Hideyuki NOGUCHI ◽  
Rempei SUWA ◽  
Cacilda Adélia Sampaio de SOUZA ◽  
Roseana Pereira da SILVA ◽  
Joaquim dos SANTOS ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Root Biomass ◽  
Fine Root ◽  
Fine Root Biomass ◽  
Central Amazon ◽  
Moist Forest

Distribution and chemistry of fine roots in a white spruce – subalpine fir stand in British Columbia: implications for management

1978 ◽  
Vol 8 (3) ◽  
pp. 265-279 ◽  
Author(s):  
J. P. Kimmins ◽  
B. C. Hawkes
Keyword(s):  
Vertical Distribution ◽  
Forest Floor ◽  
Fine Roots ◽  
Root Biomass ◽  
Fine Root ◽  
Fine Root Biomass ◽  
Root Tips ◽  
Subalpine Fir ◽  
Chemical Content ◽  
The Vertical Distribution

The vertical distribution of fine-root biomass, its chemical content, and the vertical distribution of overstory root tips were measured in a mature white spruce – subalpine fir stand (Piceaglauca (Moench) Voss – Abieslasiocarpa (Hook.) Nutt.) growing on an infertile sandy soil near Prince George, British Columbia, during July and August, 1975. The study was part of a larger project which described the biomass and chemical content of the tree and minor vegetation. The objective of the project was to provide information on nutrient losses accompanying whole-tree logging and to estimate the possible consequences of such losses for future tree production. Questions concerning the magnitude of the soil nutrient capital available to the vegetation indicated the need for information on the exploitation of the soil by the roots. This paper reports the results of an investigation of the fine roots. Living fine roots (<6.4 mm) of overstory trees and understory plants were sampled separately from 11 soil pits to an average depth of 94 cm. Overstory fine-root biomass was estimated to be about 1870 kg/ha of which 67% was in the forest floor (LFH horizon) and the Ae horizon. The average combined depth of these two horizons was only 8.3 cm, but they contained 88% of the overstory root tips sampled. The 3.3-cm-thick forest floor alone contained half of the fine-root biomass and approximately 70% of the overstory root tips. Understory fine-root biomass was estimated to be about 7880 kg/ha of which 69% was in the forest floor and the Ae horizon. The concentrations of N, P, K, Ca, and Mg generally decreased with increasing depth, while Fe and Al exhibited the opposite pattern.The marked concentration of fine-root biomass and root tips in the forest floor is interpreted as reflecting the very low nutrient status of the mineral soil on the study site. The high value of fine-root biomass for understory vegetation results from the open structure of the stand and is thought to reflect the great importance of this vegetation in nutrient cycling on the study site. The biomass data, together with root chemical concentration data, are consistent with the hypothesis that the forest floor is the major source of several of the macronutrients for the vegetation on the site.

scholarly journals Effect of disturbance on fine root biomass in the Tropical moist forest of eastern Nepal

2013 ◽  
Vol 2 ◽  
pp. 10-16 ◽  
Author(s):  
Tilak Prasad Gautam ◽  
Tej Narayan Mandal
Keyword(s):  
Fine Roots ◽  
Root Biomass ◽  
Surface Soil ◽  
Fine Root ◽  
Soil Layer ◽  
Fine Root Biomass ◽  
Nitrogen Stock ◽  
Moist Forest ◽  
Surface Soil Layer ◽  
Disturbed Stand

Fine root biomass (<5 mm diameter) was estimated in 0-15 cm and 15- 30 cm soil depths of disturbed and undisturbed stands of tropical moist forest in eastern Nepal. The value of root mass was higher (4.28 t ha-1) in the undisturbed stand than the disturbed stand (2.04 t ha-1). The biomass of smaller fine roots (<2 mm diameter) was 1.51 and 3.2 t ha-1 in the disturbed and undisturbed stands respectively. Most of the fine roots were present in the surface soil layer (0-15 cm), in both the disturbed and undisturbed stands (67% in the disturbed and 64% in the undisturbed). The nitrogen stock in the fine roots was more (38.61 kg ha-1) in undisturbed stand than the disturbed stand (16.93 kg ha-1). More nitrogen was confined in the fine roots of <2 mm diameter in both undisturbed (28.8 kg ha-1) and disturbed (13.59 kg ha-1) stands. DOI: http://dx.doi.org/10.3126/njbs.v2i0.7484 Nepalese Journal of Biosciences 2 : 10-16 (2012)

scholarly journals Fine root biomass in a tropical moist forest in the upper Negro River basin, Brazilian Amazon

Tropics ◽  
2014 ◽  
Vol 22 (4) ◽  
pp. 179-183
Author(s):  
Hideyuki Noguchi ◽  
Cacilda Ad^|^eacute;lia Sampaio de Souza ◽  
Rosiane Oliveira da Silva ◽  
Rempei Suwa ◽  
Takuya Kajimoto ◽  
...  
Keyword(s):  
River Basin ◽  
Root Biomass ◽  
Fine Root ◽  
Brazilian Amazon ◽  
Fine Root Biomass ◽  
Negro River ◽  
Moist Forest

Effects of thinning on fine root biomass and carbon storage of subalpine Picea asperata plantation in Western Sichuan Province, China

2013 ◽  
Vol 36 (7) ◽  
pp. 645-654 ◽  
Author(s):  
Yun-Ke LIU ◽  
Chuan FAN ◽  
Xian-Wei LI ◽  
Yin-Hua LING ◽  
Yi-Gui ZHOU ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Root Biomass ◽  
Fine Root ◽  
Fine Root Biomass ◽  
Sichuan Province ◽  
Western Sichuan ◽  
Picea Asperata

scholarly journals Fine root biomass and morphology in a temperate forest are influenced more by the nitrogen treatment approach than the rate

2021 ◽  
Vol 130 ◽  
pp. 108031
Author(s):  
Wen Li ◽  
Yifei Shi ◽  
Dandan Zhu ◽  
Wenqian Wang ◽  
Haowei Liu ◽  
...  
Keyword(s):  
Root Biomass ◽  
Temperate Forest ◽  
Fine Root ◽  
Treatment Approach ◽  
Fine Root Biomass ◽  
Nitrogen Treatment
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