This research was done to assess effect of soil nutrients (N, P and K) on diameter at breast height (DBH), height and biodiversity. Three transect lines according to altitudinal gradient were established to systematically allocate the plot. Total 45 samples having 20m×25m were established to collect the biophysical data and soil samples. DBH and height of trees were recorded and soil samples were carried out in the lab. The Shannon –Weiner Index, Simpson Index and Evenness Index were analyzed. Nitrogen (N), Phosphorous (P) and Potash (K) was analyzed using Kjeldahl, Olsen’s and Somers and Flame photometric methods respectively. The Pearson’s correlation was performed to show the relation of DBH, height and biodiversity indexes with N, P and K. Descriptive statistics showed that the highest Mean±SE DBH (cm) was 50.75±4.61 in altitude<200m while this was the least 34.92±1.35 cm in altitude 200-400 m. The highest value of Shannon –Weiner index was 0.95 at altitude of <200m and lowest value was 0.47 at altitude of 200-400m. R square values of DBH vs. Nitrogen% at 10-20 cm depth was 0.033. Similarly, R square value of DBH vs. Phosphorous was more about 0.102 and 0.323 at 0-10 and 10-20 cm depth respectively. This R square value of Height vs. Phosphorus was 0.024 and 0.117 respectively. R square of height vs. Potash was 0.034 and 0.001 at 0-10 and 10-20 cm depths respectively. F-test showed that the correlation between Soil nutrient (N, P, K) and tree structures (DBH and Height) was insignificant at 95% confidence level since the p>0.05. However, t-test showed that, the intercept used in the equation was significant at 95% confidence level. R square value of H’ and N% was 0.001 and 0.008 at 0-10 and 10-20 cm soil depth respectively. Similarly, the R square value of H' vs. P (kg/ha) was 0.38 and 0.42 at 0-10 and 10-20 cm soil depth respectively. Moreover, the R square value of H' vs. K (kg/ha) was 0.36 and 0.01 respectively. This research will be useful to understand the effect of soil nutrients on DBH, height and soil nutrient in the forest according to altitudinal gradient.
| Published in | American Journal of Life Sciences (Volume 10, Issue 6) |
| DOI | 10.11648/j.ajls.20221006.12 |
| Page(s) | 123-130 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Altitude, Soil Nutrients, DBH, Height, Biodiversity
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APA Style
Shreejana Panthi, Ram Asheshwar Mandal, Ajay Bhakta Mathema. (2022). Correlation of Tree Diameter, Height and Biodiversity with Soil N, P and K. American Journal of Life Sciences, 10(6), 123-130. https://doi.org/10.11648/j.ajls.20221006.12
ACS Style
Shreejana Panthi; Ram Asheshwar Mandal; Ajay Bhakta Mathema. Correlation of Tree Diameter, Height and Biodiversity with Soil N, P and K. Am. J. Life Sci. 2022, 10(6), 123-130. doi: 10.11648/j.ajls.20221006.12
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Download@article{10.11648/j.ajls.20221006.12,
author = {Shreejana Panthi and Ram Asheshwar Mandal and Ajay Bhakta Mathema},
title = {Correlation of Tree Diameter, Height and Biodiversity with Soil N, P and K},
journal = {American Journal of Life Sciences},
volume = {10},
number = {6},
pages = {123-130},
doi = {10.11648/j.ajls.20221006.12},
url = {https://doi.org/10.11648/j.ajls.20221006.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20221006.12},
abstract = {This research was done to assess effect of soil nutrients (N, P and K) on diameter at breast height (DBH), height and biodiversity. Three transect lines according to altitudinal gradient were established to systematically allocate the plot. Total 45 samples having 20m×25m were established to collect the biophysical data and soil samples. DBH and height of trees were recorded and soil samples were carried out in the lab. The Shannon –Weiner Index, Simpson Index and Evenness Index were analyzed. Nitrogen (N), Phosphorous (P) and Potash (K) was analyzed using Kjeldahl, Olsen’s and Somers and Flame photometric methods respectively. The Pearson’s correlation was performed to show the relation of DBH, height and biodiversity indexes with N, P and K. Descriptive statistics showed that the highest Mean±SE DBH (cm) was 50.75±4.61 in altitude0.05. However, t-test showed that, the intercept used in the equation was significant at 95% confidence level. R square value of H’ and N% was 0.001 and 0.008 at 0-10 and 10-20 cm soil depth respectively. Similarly, the R square value of H' vs. P (kg/ha) was 0.38 and 0.42 at 0-10 and 10-20 cm soil depth respectively. Moreover, the R square value of H' vs. K (kg/ha) was 0.36 and 0.01 respectively. This research will be useful to understand the effect of soil nutrients on DBH, height and soil nutrient in the forest according to altitudinal gradient.},
year = {2022}
}
TY - JOUR T1 - Correlation of Tree Diameter, Height and Biodiversity with Soil N, P and K AU - Shreejana Panthi AU - Ram Asheshwar Mandal AU - Ajay Bhakta Mathema Y1 - 2022/12/29 PY - 2022 N1 - https://doi.org/10.11648/j.ajls.20221006.12 DO - 10.11648/j.ajls.20221006.12 T2 - American Journal of Life Sciences JF - American Journal of Life Sciences JO - American Journal of Life Sciences SP - 123 EP - 130 PB - Science Publishing Group SN - 2328-5737 UR - https://doi.org/10.11648/j.ajls.20221006.12 AB - This research was done to assess effect of soil nutrients (N, P and K) on diameter at breast height (DBH), height and biodiversity. Three transect lines according to altitudinal gradient were established to systematically allocate the plot. Total 45 samples having 20m×25m were established to collect the biophysical data and soil samples. DBH and height of trees were recorded and soil samples were carried out in the lab. The Shannon –Weiner Index, Simpson Index and Evenness Index were analyzed. Nitrogen (N), Phosphorous (P) and Potash (K) was analyzed using Kjeldahl, Olsen’s and Somers and Flame photometric methods respectively. The Pearson’s correlation was performed to show the relation of DBH, height and biodiversity indexes with N, P and K. Descriptive statistics showed that the highest Mean±SE DBH (cm) was 50.75±4.61 in altitude0.05. However, t-test showed that, the intercept used in the equation was significant at 95% confidence level. R square value of H’ and N% was 0.001 and 0.008 at 0-10 and 10-20 cm soil depth respectively. Similarly, the R square value of H' vs. P (kg/ha) was 0.38 and 0.42 at 0-10 and 10-20 cm soil depth respectively. Moreover, the R square value of H' vs. K (kg/ha) was 0.36 and 0.01 respectively. This research will be useful to understand the effect of soil nutrients on DBH, height and soil nutrient in the forest according to altitudinal gradient. VL - 10 IS - 6 ER -
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