Gautam Kumar Das

14 Questions 79 Answers 0 Followers

Questions related from Gautam Kumar Das

Sulphur is indispensable for vegetation growth, but what's the standard range of Sulphur concentration in the forest soils?

Soil chemical analysis for various studies shows the impact of Sulphur in crop production particularly in the field of agriculture, and a better result even obtained for the combined effect of...

21 May 2021 6,363 20 View

Evenness of the species distribution, relative abundance of species diversity, and the species richness, are they same?

Values obtained for Evenness of the species distribution, relative abundance of species diversity, and the species richness of a number of identified timber tree species of a forgotten forest for...

08 January 2021 3,732 8 View

Vertical distributions of SOC & N is found decreasing with increased value of bulk density, shown in literature, is it uniform for the forest soils?

Almost all the literature shows that the vertical distributions of soil organic carbon (SOC) & available nitrogen (N) is found decreasing with increased value of bulk density with respect to...

22 December 2020 858 10 View

Is there any chemical environment or parameters to define or explain the sediment and soil profiles, are they separated by chemical parameters?

Sediment is relatively younger than the soil in the depositional environment as the sediments are consequence of the accretion of particles transported either by waters or by winds, whereas, soil...

13 December 2020 5,043 18 View

Bulk density obtained of the forest surface soils is 0.81 gm/cubic centimetres, is it normal?

Bulk density of a forest soil sample in a community forest created under social forestry scheme in the district of Nadia, West Bengal is obtained as 0.81 gm/ cubic centimetre, comparatively too...

01 December 2020 4,905 33 View

Ratio of Above Ground Biomass (AGB) and Below Ground Biomass (BGB) for two trees is 20:1, is the ratio a major cause for uprooted of trees in storms?

Biomass of the two trees namely Azadirachta indica (Neem) and (Jalpai) Alaerocarpus serratus is measured which were uprooted in the last November by the ravaged cyclone Bulbul, the ratio between...

25 November 2020 944 7 View

What's the actual content of carbon in biomass, is there biomass carbon neutral or zero carbon?

The content of carbon in the biomass varies from 35% - 65% in one literature, in the another, it's 45-50%, though 50% is often taken as default value, and all they are surprisingly constant...

24 November 2020 1,921 7 View

Organic carbon of forest soils is higher than that of available Nitrogen in Nepal, but for the forest soils of West Bengal it is just reversed, why?

Just read out a paper on C:N ratio of the soils of Sal (Shorea robusta) forest in Terai region of Nepal, in that paper the author has shown the data for organic carbon (C) for all the soil samples...

03 November 2020 3,771 5 View

When correlation is calculated by applying multiple correlation coefficients formula, how could I get the regression fit line, is there any formula?

Available nitrogen, phosphorus and potassium (NPK) content data are correlated applying with the multiple correlation coefficients formula, the obtained values are approaching 1 that indicates a...

29 October 2020 1,805 3 View

Carbon dioxide sequestered as Blue Carbon in mangroves soil four times more than that of the green carbon, but obtained data does not reflect, why?

Mangroves have the ability to absorb up to four times more carbon dioxide by area than upland terrestrial forest ecosystems, carbon dioxide is stored as blue Carbon in the sediment of the...

28 October 2020 2,367 4 View

Results of C and N comes out 0.00 for a soil sample collected in the natural terrestrial forest stands, is it possible?

After soil chemical analysis, obtained result for the content of organic carbon and nitrogen in kg/ha shows 0.00, whereas potassium content is 55.20 kg/ha for a surface soil sample collected in...

21 October 2020 9,617 7 View

When value of Correlation coefficient obtained 1, what does it mean?

A value of positive correlation coefficient 1 of the two variables means a perfect positive relationship, indicating a positive increase in one variable, there is a positive increase in the second...

20 October 2020 8,348 13 View

NPK Data computed using statistical methods applying multiple correlation coefficients formula, the value obtained is negative, what does it mean?

When I compute NPK Data obtained from the mangroves soil applying statistical methods of multiple correlation coefficients with the N as the independent variable, it gives negative value, what...

17 October 2020 3,002 7 View

C/N, C/P, C/K ratio of forest soils

Computation of C/N ratio of forest soils is observed in so many research papers and literature but I have not seen the computation of C/P or C/K ratio, is it for the same reason for the release of...

01 January 1970 314 24 View