Theme 1: Grassland Ecology
Description
CN ratios of rangeland soils in selected agriculture response units (ARUs) prevailing in three watersheds, Kosi, Alaknanda, and Pindar, in the Indian Central Himalayan mountains were analyzed. The ratios varied significantly (P<0.05) with ARUs and seasons. Interaction between ARUs and season was also found significant (P<0.05). In Alaknanda Watershed soil CN ratios ranged from 6.62 to 20.58. Soil CN ratio values differed significantly (P<0.05) with seasons and ARUs. Soil CN ratios in the rangelands of Pindar Watershed were recorded between 6.54 and 11.29. The ratios varied significantly (P<0.05) in seasons and ARUs. Interaction between ARUs and season was also found significant (P<0.05). Rangeland soil CN ratio values of all ARUs were further statistically analyzed in all three watersheds. Minimum soil CN ratios were seen at Pindar and maximum at Alaknanda watershed. The ratios variation was seen in all the rangelands and it was found significant at a significance level of 5%. Interaction between Kosi and Alaknanda was found non-significant while between Kosi and Pindar and Alaknanda and Pindar it was significant (P<0.05) throughout the study. Variation in soil CN ratios in both agricultural and rangeland soils was seen in each watershed. In the Kosi watershed, soil CN ratios ranged from 6.74 to 15.06; in Alaknanda from 6.36 to 20.58 and in Pindar from 5.75 to 14.38. CN ratios have an absolute relationship with temperature and are higher when higher rainfall occurs and moisture prevails. The ratios also impact soil acidity and other soil quality parameters.
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Carbon-Nitrogen Ratios in Rangeland Soils in Various Agriculture Response Units in Three Watersheds in the Central Himalayas, India
CN ratios of rangeland soils in selected agriculture response units (ARUs) prevailing in three watersheds, Kosi, Alaknanda, and Pindar, in the Indian Central Himalayan mountains were analyzed. The ratios varied significantly (P<0.05) with ARUs and seasons. Interaction between ARUs and season was also found significant (P<0.05). In Alaknanda Watershed soil CN ratios ranged from 6.62 to 20.58. Soil CN ratio values differed significantly (P<0.05) with seasons and ARUs. Soil CN ratios in the rangelands of Pindar Watershed were recorded between 6.54 and 11.29. The ratios varied significantly (P<0.05) in seasons and ARUs. Interaction between ARUs and season was also found significant (P<0.05). Rangeland soil CN ratio values of all ARUs were further statistically analyzed in all three watersheds. Minimum soil CN ratios were seen at Pindar and maximum at Alaknanda watershed. The ratios variation was seen in all the rangelands and it was found significant at a significance level of 5%. Interaction between Kosi and Alaknanda was found non-significant while between Kosi and Pindar and Alaknanda and Pindar it was significant (P<0.05) throughout the study. Variation in soil CN ratios in both agricultural and rangeland soils was seen in each watershed. In the Kosi watershed, soil CN ratios ranged from 6.74 to 15.06; in Alaknanda from 6.36 to 20.58 and in Pindar from 5.75 to 14.38. CN ratios have an absolute relationship with temperature and are higher when higher rainfall occurs and moisture prevails. The ratios also impact soil acidity and other soil quality parameters.
