Mayank Singh, O.P. Singh ‘Vatsa and M.P. Singh
Abstract
Present investigation has been carried out on the sloping habitat of Gujar Tal lake ecotone belts by selecting two different sites, I (12o slope)and II (9o slope) at Jaunpur (U.P.) under the influence of two respective natural rainfall events, i.e. 11 mm in 55 minutes and 15 mm in 1 hour and 25 minutes, on two different days during rainy season. The wetlands and their ecotones are under threat of degradation all over the world. Therefore, findings of nutrients (N and P) conservation by natural community, i.e run-off concentration in vegetated and bare plots during the experiments will be helpful in ecological management of present biotopes. The vegetated plots showed lower values of nutrients loss (N & P) in run-off water in eroded soil in comparison to bare plots at both the sites (I and II). Among the two sites maximum concentration of nitrogen was 4.56 (site I) and 4.32 (site II) mg L-1 and phosphorous was 0.99 (site I) and 0.54 (site II) mg L-1 in run-off water, in 11 mm natural rainfall event. In contrast, for eroded soil their respective values, i.e. N, 5.83 (site I) and 5.57 (site II) mg L-1and P, 0.81 (site I) and 0.67(site II) mg L-1 were more in eroded soil, again in 11 mm natural rainfall event.