CAJ | 학술논문

该文通过对辽西北风沙土经过3种绿肥改良后土壤理化性质的比较，及对在改良的地块上栽植平榛后的经济效益进行分析，结果表明：改良后土壤物理性质得到明显改善，土壤容重变小、总孔隙度增大、土壤的最大持水量和通气度均有所提高；土壤养分含量大幅提高，栽植的平榛长势良好，产量可观，经济效益显著，这种改良利用模式为辽西北风沙区土壤改良提供借鉴。
해문통과대료서북풍사토경과3충록비개량후토양이화성질적비교，급대재개량적지괴상재식평진후적경제효익진행분석，결과표명：개량후토양물이성질득도명현개선，토양용중변소、총공극도증대、토양적최대지수량화통기도균유소제고；토양양분함량대폭제고，재식적평진장세량호，산량가관，경제효익현저，저충개량이용모식위료서북풍사구토양개량제공차감。
Through the comparison of physicochemical properties of aeolian sandy soil of Liaoning Northwest before and after im- provement by planting soybean, Astragalus adsurgens and alfalfa and the analysis of economic benefit of Corylus heterophylla planted in the improved soil, the article reaches the following conclusions： physicochemical properties of aeolian sandy soil improved with the tree types of green manure were improved obviously, with the reduction of volume weight, the increase of the total porosity, and the improvement of both the maximum water-holding capacity and the venting quality; the nutrient contents of the improved soil were greatly enhanced, Corylus heterophyUa planted in the improved soil grew very well with high yield, bringing in remarkable economical benefit. This improvement and utilization patterns provides a good reference for the soil improvement of aeolian sandy areas of Liaoning Northwest.