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Fine litterfall and nutrient dynamics during forest regrowth in the humid subtropics of north-eastern India |
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| Authors: | A Arunachalam Kusum Arunachalam H N Pandey R S Tripathi |
| Institution: | a Restoration Ecology laboratory, Faculty of Applied Science, North Eastern Regional Institute of Science and Technology, Nirjuli-791109 Arunachal Pradesh India b Plant Ecology laboratory, Department of Botany, North-Eastern Hill University, Shillong-793022 Meghalaya India |
| Abstract: | Fine litterfall and nutrient return patterns were studied in three subtropical humid forest stands (7-, 13- and 16-year old), regrowing after selective tree cutting in north-eastern India. The seasonality of fine litterfall was unimodal, with a peak during spring and a trough during rainy season in the forest regrowths of three different ages. The rate of fine litterfall increased with increasing basal area of the woody vegetation during forest regrowth. Leaf litter accounted for 83% of the total litterfall. N concentration was maximum during autumn and minimum during rainy season; nutrient concentrations were highest in the leaf litter. Seasonal variation in P concentration was small. Maximum and minimum input of N and P to the forest floor through fine litter coincided with the respective periods of litter production. |
| Keywords: | reproductive toxicity boron |
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