Understanding relationship between physical quality indicators and organic carbon in soils affected by long-time continuous cultivation under sub-humid ecosystem
نویسندگان
چکیده
The objectives of this present study were to analyses soils and find out some soil quality properties check relationship between compaction, crust formation erodibility - K the with organic carbon (SOC) amount in surface (0-20 cm) subsurface (20-40 affected by long-time continuous cultivation under sub-humid environmental condition. research comes showed that formation, is highly significantly (P < 0.001) related carbon, stock, matter each other. also identifies area generally, has clay texture, neutral pH, low CaCO3, high OC OM top layer moderate bottom cm). It was not identified significant differences layers.
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این مطالعه سعی دارد تا رابطه تفکر انتقادی و مهارت های شناختی را به عنوان دو عنصر مهم روانشناسی شناختی با کیفیت ترجمه متون ادبی و اقتصادی بررسی کند. صد دانشجوی سال آخر ترجمه که در مقطع کارشناسی مشغول به تحصیل هستند برای شرکت در این مطالعه انتخاب شدند و آزمون های تافل تفکر انتقادی و مهارت های شناختی از آنها گرفته شد. آزمون ترجمه ادبی و اقتصادی نیز برای تعیین سطح کیفیت ترجمه گرفته شد. یافته های حا...
Effect of a long-term cultivation and crop rotations on organic carbon in loess derived soils of Golestan Province, Northern Iran
The effects of 34 years cultivation on organic carbon content of the loess derived soils were studied in Golestan province, northern Iran. Soil organic carbon (SOC) showed significant decrease in most of cases. The minimum and maximum SOC decreases were 4 and 51.14 Mg C ha-1/30 cm for 34 years. In a few cases there was an increase in SOC up to 16.93 Mg C ha-1/30 cm over the period of 34 years i...
متن کاملSolubility and Leaching Risks of Organic Carbon in Paddy Soils as Affected by Irrigation Managements
Influence of nonflooding controlled irrigation (NFI) on solubility and leaching risk of soil organic carbon (SOC) were investigated. Compared with flooding irrigation (FI) paddies, soil water extractable organic carbon (WEOC) and dissolved organic carbon (DOC) in NFI paddies increased in surface soil but decreased in deep soil. The DOC leaching loss in NFI field was 63.3 kg C ha⁻¹, reduced by 4...
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ژورنال
عنوان ژورنال: Eurasian journal of soil science
سال: 2023
ISSN: ['2147-4249']
DOI: https://doi.org/10.18393/ejss.1264305