Fuelwood characteristics of some tropical trees of India

Jain, Rajendra Kumar

doi:10.1016/0961-9534(93)90068-f

Cited by 16 publications

(7 citation statements)

References 4 publications

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“…Algunos estudios, como los llevados a cabo por Singh y Khanduja (1984) y Goel y Behl (1996) señalan que las especies con alto PEy alta DV poseen los valores de PC más altos, y además presentan un lento quemado, haciéndolas más deseables como combustibles. Pero la capacidad de combustión que posee una especie también depende de su CHg (Senelwa & Sims 1999;Jain 1993;Jain & Singh 1999), sobre todo porque un alto valor de CHg hace menos eficiente a la madera como combustible, debido a que el valor del poder calórico neto es reducido.…”

Section: Discussionunclassified

Características de combustibilidad de diez especies de plantaciones de rápido crecimiento en Costa Rica

Moya

2013

RFMK

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<p>El objetivo de este estudio fue investigar las características de combustibilidad (poder calórico e índice de combustibilidad) de diez especies de plantaciones de rápido crecimiento en Costa Rica. También fue evaluada la influencia de los componentes químicos (celulosa, lignina, cenizas, cantidad de carbono y nitrógeno) y algunas propiedades físicas (contenido de humedad, densidad verde y peso específico) sobre estas características de combustibilidad. Los resultados mostraron que el poder calórico máximo varió de 16500 a 20594 kJ/kg para la albura y de 16258 a 20119 kJ/kg para el duramen. No fue posible determinar cuál tipo de madera (albura o duramen) que presenta el mayor valor de poder calórico. En el caso del índice de combustibilidad, se presentaron grandes variaciones, con valores entre 337 y 6390. Al evaluar los efectos de la humedad se encontró un efecto lineal sobre el poder calórico (modelo Y = β0*X + β1) y muestra que el efecto de la humedad en el poder calórico es diferente para cada especie o tipo de madera (duramen o albura). La única conífera evaluada (Cupressus lusitanica) fue la especie con mayor potencial energético debido a sus altos valores de índice de combustibilidad, poder calórico y su bajo contenido de cenizas. Las otras especies de plantación, a pesar de que no presentan los valores energéticos de C. lusitanica, poseen un potencial importante debido a los altos volúmenes de desechos o residuos que se obtienen en las distintas industrias.</p>

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Section: Discussionunclassified

Características de combustibilidad de diez especies de plantaciones de rápido crecimiento en Costa Rica

Moya

2013

RFMK

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“…Ranking based on FVI: For screening desirable fuelwood species, Purohit and Nautiyal (1987) and Jain (1993) emphasized on FVI as it considers major fuel properties that described in Eq. 4.…”

Section: Methodsmentioning

confidence: 99%

Selection of Fuelwood Tree Species Using Fuel Value Index in Jhenaidah District

2021

KU Studies

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Four tree species Acacia nilotica, Samanea saman, Leucaena leucocephala, Tamarindus indica were collected from different wood vendors of Jhenidah district in Bangladesh to identify the potential fuelwood tree species through fuelwood properties. The calorific value and density of the wood considered as positive characteristics and high moisture and ash content as negative characteristics that helped develop a fuelwood value index (FVI). A 8×2×2 cmof three wood blocks were collected from each tree species in order to determine the fuelwood properties. The highest calorific value and wood density were found in Acacia nilotica and Tamarindus indica respectively but the ash content was found to be lowest in Leocoena leucocephala (1.09%) and highest in Tamarindus indica (2.21%). Moreover, the lignin content was the highest in the Acacia nilotica. According to FVI, the better quality of fuelwood species in descending order are Acacia nilotica˃ Leucaena leucocephala˃Tamarindus indica ˃Samanea saman. This study also revealed the significant negative correlation between FVI and ash content.

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“…Considering these limitations, our present estimates must be considered as conservative estimates of HANPP for India. Furthermore, we restrict our reporting units to productivity rather than energy units, mainly due to lack of reliable data on calorific values of types of various crops and grasslands, although data on various forest species are available (Jain 1993 1994 1999).…”

Section: Methodsmentioning

confidence: 99%

Land use changes and trends in Human Appropriation of Above Ground Net Primary Production (HANPP) in India (1961–98)

Prasad¹,

Badarinth

2004

Geographical Journal

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Land use change has the potential to influence energy flows, standing crop and biomass turnover at a variety of scales. To understand and quantify the impact of land use change on natural systems, interdisciplinary approaches and concepts linking biophysical and socioeconomic factors are needed. One such approach for analysing the socioeconomic energy flows from land use changes is Human Appropriated Net Primary Production (HANPP). HANPP is defined as the difference between the net primary production of potential vegetation and the actual net primary production remaining in vegetation after harvest. In this study, we used HANPP to quantify the energy flows consequent upon land use/land cover change from 1961 to 1998 in India. Data from the Food and Agricultural Organization Statistics (FAOSTAT) covering land use/land cover estimates, crop production, harvest and fertilizer use data have been used to analyse the trends in HANPP. Land use changes between 1961 and 1998 indicate a small increase in agricultural areas from 58.2% to 60.8% and in forest and woodland areas from 19.0% to 23.2%. Actual above ground net primary production of vegetation increased from 1280.58 to 1818.23 Tg, an increase of approximately 1.4 times over 37 years. Although population increased exponentially, human appropriation of photosynthetic products did not rise as much due to increases in forest cover and agricultural production. Although the HANPP concept is a useful approach to analyse the trends in photosynthetic products brought about by land use changes and harvesting, more robust indicators are needed to understand the impacts associated with these changes. We discuss the relevance of the HANPP analysis results by focusing on land use/land cover change and exploring the inter-linkages between energy flows and environment.

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Fuelwood characteristics of some tropical trees of India

Cited by 16 publications

References 4 publications

Características de combustibilidad de diez especies de plantaciones de rápido crecimiento en Costa Rica

Características de combustibilidad de diez especies de plantaciones de rápido crecimiento en Costa Rica

Selection of Fuelwood Tree Species Using Fuel Value Index in Jhenaidah District

Land use changes and trends in Human Appropriation of Above Ground Net Primary Production (HANPP) in India (1961–98)

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