caa a22 4500 463208749 CHVBK 20180405153133.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10705-006-9061-7 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9061-7 Cultivation impacts nitrogen transformation in Indian forest ecosystems [Elektronische Daten] [Nimisha Tripathi, Raj Singh] Two forests and two croplands, converted from the forest ecosystem were studied for 2years to quantify inorganic N, nitrification, N-mineralization and microbial-N. The available N-pool ranged from 15.23μgg−1 to 19.84μgg−1, microbial-N from 20.6μgg−1 to 80.02μgg−1 with maximum values in summer season and minimum values in the rainy season. The trend for nitrification and N-mineralization was opposite to that of the size of available N-pool. Mean annual net nitrification rates ranged from 7.07μgg−1month−1 to 44.84μgg−1month−1 (0.17-1.39μgg−1day−1) and net N-mineralization from 6.56μgg−1month−1 to 48.53μgg−1month−1 (0.21-1.56μgg−1day−1). On an average, the pool of available N was slightly higher by 4.81%, while the microbial-N was declined substantially by 41.78% after the conversion of forest into cropland. Cultivation reduced the mean annual net nitrification and net N-mineralization, respectively by 50.71% and 47.67%. Interestingly, seasonal moisture content is negatively correlated to microbial-N and inorganic N and positively related to nitrification and N-mineralization. Springer Science+Business Media B.V., 2006 N-mineralization nationallicence Nitrification nationallicence Microbial-N nationallicence Immobilization nationallicence Seasonal pattern nationallicence Tripathi Nimisha Central Mining Research Institute, Barwa Road, Dhanbad, 826 001, Jharkhand, India aut Singh Raj Central Mining Research Institute, Barwa Road, Dhanbad, 826 001, Jharkhand, India aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 233-243 1385-1314 77:3<233 2007 77 10705 https://doi.org/10.1007/s10705-006-9061-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9061-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tripathi Nimisha Central Mining Research Institute, Barwa Road, Dhanbad, 826 001, Jharkhand, India aut NATIONALLICENCE 700 1- Singh Raj Central Mining Research Institute, Barwa Road, Dhanbad, 826 001, Jharkhand, India aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 233-243 1385-1314 77:3<233 2007 77 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer