Journal of Bamboo and Rattan最新文献_第6页

Root morphology and development in rattans. 3. Root system development in Calamus thwaitesii Becc. and Calamus rotang L. in relation to the physical properties of a degraded lateritic soil 藤类植物根的形态和发育。3.菖蒲根系发育的研究。和菖蒲对退化红土物理性质的影响

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195089

V. Jayasree, M. Sujatha, C. Renuka, P. Rugmini

{"title":"Root morphology and development in rattans. 3. Root system development in Calamus thwaitesii Becc. and Calamus rotang L. in relation to the physical properties of a degraded lateritic soil","authors":"V. Jayasree, M. Sujatha, C. Renuka, P. Rugmini","doi":"10.1163/156915904774195089","DOIUrl":"https://doi.org/10.1163/156915904774195089","url":null,"abstract":"The suitability of any vegetation to a particular soil is greatly controlled by the establishment and proliferation of the root system in that soil, which in turn is decided by the nature and properties of the soil. As part of an attempt to introduce Calamus from natural forests to degraded lateritic soils of Kerala, this study was conducted to evaluate the root system development of two species of Calamus, viz., Calamus thwaitesii and C. rotang, grown in a degraded lateritic soil at Palappilly range in the Chalakkudy Forest Division of the State. Both species had been planted in plots of 90 m × 4.5 m size with a spacing of 1.5 m × 1.5 m. For collecting soil samples, five 3-year-old plants from each species were selected from the central row of each plot. Root parameters such as root length, rooting density, total root weight and fine root weight were determined in soil core samples collected from different depths (0-15 cm, 15-40 cm and 40-60 cm) and radial distances from the base of the plant (0 cm, 10 cm and 30 cm) at three randomly selected sampling points around a single plant. Various physical properties of these soil samples were determined using standard procedures and their relation with root parameters were determined. Results revealed that radial distance from the plant inversely affected the root growth in both the species especially within a soil depth of 0-60 cm rather than at different soil layers considered separately. Depth of soil also had an inverse relationship with root growth in both the species. Among the different soil physical properties, soil moisture and gravel were negatively correlated with all the root parameters while positive correlation was seen with sand. No definite relationship was observed with the bulk density in both the species.","PeriodicalId":39305,"journal":{"name":"Journal of Bamboo and Rattan","volume":"1 1","pages":"81-90"},"PeriodicalIF":0.0,"publicationDate":"2004-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81989286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of bamboo foliage on soil respiration, microbial biomass and N mineralization 竹叶对土壤呼吸、微生物量和氮矿化的影响

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195160

K. Upadhyaya, A. Arunachalam, K. Arunachalam

{"title":"Effect of bamboo foliage on soil respiration, microbial biomass and N mineralization","authors":"K. Upadhyaya, A. Arunachalam, K. Arunachalam","doi":"10.1163/156915904774195160","DOIUrl":"https://doi.org/10.1163/156915904774195160","url":null,"abstract":"Microbial N, CO2 evolution rate and mineral-N dynamics were determined in soils collected beneath the canopy of two different bamboo species in a 9-year-old bamboo forest developed on an abandoned sloping agricultural land in a humid tropical zone of north-east India. A laboratory incubation study was set up to determine the dynamics of microbial biomass, soil respiration and N mineralization rates as influenced by addition of bamboo residues (leaves and scale leaves). Soil nutrients and microbial biomass C, N and P were greater in soils under Bambusa pallida as compared to B. balcooa. Lignin and N concentrations were greater in B. balcooa. Scale leaves had low lignin and N concentrations than the leaf litter. The litter quality, particularly lignin/N, influenced the dynamics of soil mineral-N and, therefore, on the net N mineralization rate. CO2 evolution rate in the soil had a negative relationship with the N mineralization rate, while the microbial N showed weaker correlations with the dynamics of the mineral N. Overall, amendments using the sclerophyllous and slow decomposing foliage did not contribute to the increasing N mineralization in the soils. The study also suggests that soil management practices in bamboo forests should take into account incorporation of residues of good quality, probably of other plant species, failing which, soil quality may deteriorate over a long term that would be critical in productivity and nutrient cycling of secondary bamboo forests regenerating on nutrient-poor, fragile and marginal fallow agricultural lands.","PeriodicalId":39305,"journal":{"name":"Journal of Bamboo and Rattan","volume":"1 1","pages":"169-183"},"PeriodicalIF":0.0,"publicationDate":"2004-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79586316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Briquetting of rattan furniture waste 藤制家具废料的压块

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195133

A. Olorunnisola

{"title":"Briquetting of rattan furniture waste","authors":"A. Olorunnisola","doi":"10.1163/156915904774195133","DOIUrl":"https://doi.org/10.1163/156915904774195133","url":null,"abstract":"This paper presents the findings of a study involving experimental production of briquettes from chopped rattan strands mixed with cassava starch paste. Samples of rattan strands of mixed species (Laccosperma secundiforum and Eresmopatha macrocarpa) were collected from a furniture workshop in Ibadan, Oyo State, Nigeria. The strands, having an average moisture content of 12% and an average dimension of 630 mm (length) by 4.0 mm (width) and 1.8 mm (thickness), were reduced to 25 mm (length) by 4.0 mm (width) and 1.8 mm (thickness) particles by manual shearing. They were subsequently mixed with cassava starch at six proportions by weight, i.e. 50%, 100%, 150%, 200%, 250%, and 300%. It was observed that the minimum proportion by weight of cassava starch required for briquette formation was 200%. Compression experiments were performed using a simple tabletop closed - end die piston press fitted with both a pressure and a dial gauge. Four levels of pressure application: 3.5 N/mm2, 7.0 N/mm2, 10 N/mm2 and 14 N/mm2, and two loading duration (dwell times), 3 min and 5 min, respectively were employed. Results obtained showed that the minimum pressure required for briquette formation was 14 MPa. The specific energy required to form the rattan strand briquettes at 200%, 250% and 300% cassava starch content levels was 8 J/t, 9.3 J/t and 11.1 J/t, respectively. A reciprocal relationship between binder content and relaxed density was observed. All the expansion (minimal in all cases) of the briquettes took place within 30 min. It was concluded that stable briquettes could be formed from rattan strands mixed with cassava starch paste.","PeriodicalId":39305,"journal":{"name":"Journal of Bamboo and Rattan","volume":"30 1","pages":"139-149"},"PeriodicalIF":0.0,"publicationDate":"2004-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88900398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 47

Morphology and genetic variation of manau rattan (Calamus manan, Miq.) in Sumatra, Indonesia 印度尼西亚苏门答腊岛麻藤(Calamus manan, Miq.)的形态和遗传变异

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195124

E. Sudarmonowati, J. Mogea, N. Hartati, L. Hong, V. Rao

引用次数: 3

Wettability of three Honduran bamboo species 洪都拉斯三种竹子的润湿性

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195151

X. B. Li, T. F. Shube, C. Hse

引用次数: 3

Growth and proliferation of bamboo ( Dendrocalamus strictus Roxb.) seedlings influenced by various growth regulators 不同生长调节剂对竹幼苗生长和增殖的影响

Journal of Bamboo and Rattan Pub Date : 2004-04-01 DOI: 10.1163/156915904774195098

R. Kumar, M. Pal

引用次数: 3

Manufacturing laminates from sympodial bamboos—an Indian experience 用竹材制造层压板——这是印度人的经验

Journal of Bamboo and Rattan Pub Date : 2004-01-01 DOI: 10.1163/156915904772875590

A. Bansal, T. Prasad

引用次数: 14

Phenology and culm growth of Melocanna baccifera (Roxb.) Kurtz in Barak Valley, North-East India 黑胶蕉物候学与茎部生长印度东北部巴拉克山谷的库尔茨

Journal of Bamboo and Rattan Pub Date : 2004-01-01 DOI: 10.1163/156915904772875617

S. Nandy, A. Das, G. Das

引用次数: 14

Basic density and strength properties of cultivated Calamus manan 栽培菖蒲的基本密度和强度特性

Journal of Bamboo and Rattan Pub Date : 2004-01-01 DOI: 10.1163/156915904772875626

R. Wahab, O. Sulaiman, H. W. Samsi

引用次数: 4

Effect of trimming of culms on growth and proliferation of bamboo ( Dendrocalamus strictus Roxb.) propagules 修剪茎秆对竹繁殖体生长和增殖的影响

Journal of Bamboo and Rattan Pub Date : 2004-01-01 DOI: 10.1163/156915904772875608

R. Kumar, M. Pal

引用次数: 3