Effects of artificial nitrogen deposition on the forest floor and soil chemistry under chestnut-leaved oak (Quercus castaneifolia C. A. Mey) plantation in the north of Iran
نویسندگان
چکیده
Human demand for food and energy has led to significant changes in the level of reactive nitrogen (Nr) released atmosphere then deposited biosphere. This study aimed investigate artificial N deposition's impact on forest floor soil chemical properties an oak (Quercus castaneifolia C. A. Mey) plantation north Iran. Twelve plots 200 m2 (20 m × 10 m) were set up area. Four treatments considered: zero (control), 50 (low), 100 (medium), 150 (high) kg ha−1 year−1. The total N, P, K, organic C (OC) measured. Soil available pH, EC (Electrical Conductivity), OC, microbial biomass (MBC), urease enzyme activity measured 0-10 cm depth. concentration P was significantly higher high treatment. (+36%), (+44%), (+12%) increased with raising high-N treatment compared control, but MBC (-20%), (-28%), K (-15%) reduced
منابع مشابه
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ژورنال
عنوان ژورنال: Canadian Journal of Forest Research
سال: 2022
ISSN: ['0045-5067', '1208-6037']
DOI: https://doi.org/10.1139/cjfr-2021-0331