CAJ | 학술논문

选取3种长沙城郊常见草坪（狗牙根、台湾青和马尼拉）为试验地，研究草坪土壤有机碳和养分含量的相互关系。结果表明，草坪土壤有机碳、全氮和全磷含量整体偏低，1 m深平均含量分别仅为5.34、0.56和0.44 g/kg，全钾、有效磷和速效钾含量中等，平均含量分别为15.6 g/kg、6.6 mg/kg和85.3 mg/kg。其中，全钾含量在土壤垂直分布上没有明显差异；而有机碳和其他养分含量以0~20 cm土层相对最高，在40~100 cm土层基本稳定。土壤有机碳与养分含量的关系复杂，与全氮、全磷的含量呈极显著正相关，与有效磷和速效钾的含量呈显著正相关，但与全钾含量无显著相关性。针对有机碳和养分含量偏低的草坪土壤，管理中应重视有机物（剪除草屑和有机肥）归还和科学补充化肥。
선취3충장사성교상견초평（구아근、태만청화마니랍）위시험지，연구초평토양유궤탄화양분함량적상호관계。결과표명，초평토양유궤탄、전담화전린함량정체편저，1 m심평균함량분별부위5.34、0.56화0.44 g/kg，전갑、유효린화속효갑함량중등，평균함량분별위15.6 g/kg、6.6 mg/kg화85.3 mg/kg。기중，전갑함량재토양수직분포상몰유명현차이；이유궤탄화기타양분함량이0~20 cm토층상대최고，재40~100 cm토층기본은정。토양유궤탄여양분함량적관계복잡，여전담、전린적함량정겁현저정상관，여유효린화속효갑적함량정현저정상관，단여전갑함량무현저상관성。침대유궤탄화양분함량편저적초평토양，관리중응중시유궤물（전제초설화유궤비）귀환화과학보충화비。
Three typical lawns (bermudagrass, Taiwan green and manilagrass) were selected in the outskirts of Changsha City to study the relationship between organic carbon content and nutrient content in soil. The results indicated that the organic carbon content, the total nitrogen content and the total phosphor content in soil of the lawns were generally low, and the average content of them at 1 m depth only were 5.34, 0.56 and 0.44 g/kg, respectively; the total kalium content, the available phosphor content and the available kalium content were all moderate, and the average content of them were 15.6 g/kg, 6.6 mg/kg and 85.3 mg/kg, respectively; among them, the total kalium content had no significant difference in vertical distribution in soil, but the organic carbon content and the content of the other nutrients were relatively high in 0~20 cm soil layer and basically stable in 40~100 cm soil layer. The organic carbon content had a complex relationship with the content of nutrients, such as it showed a extremely significant positive correlation with the contents of total nitrogen and total phosphor, a significant positive correlation with the contents of available phosphor and available kalium, but non significant correlation with the content of total kalium. Therefore, according to the lawns which had low content in organic carbon and nutrients, it should pay attention to return organic matters (clipped grass and organic fertilizer) and replenish chemical fertilizer rationally.