雷州半岛经济果林土壤碳氮磷储量分布特征及其影响因素
Distribution Characteristics and Influencing Factors of Soil Carbon, Nitrogen and Phosphorus Reserves in Economic Fruit Forest of Leizhou Peninsula
DOI: 10.12677/hjss.2024.122007, PDF,    科研立项经费支持
作者: 卢芷晴, 陈碧珊*, 钟诗明, 李 烨, 冯婷婷, 李炎松, 王 璟：岭南师范学院地理科学学院，广东 湛江
关键词: 经济果林；土壤；碳氮磷储量；雷州半岛；Economic Fruit Forest； Soil； Carbon； Nitrogen and Phosphorus Reserves； Leizhou Peninsula
摘要: 土壤碳氮磷储量对作物生长和驱动养分循环起重要作用，指示着土壤肥力和生产力。本研究对雷州半岛不同类型经济果林土壤碳氮磷储量分布特征进行分析，并探讨其与土壤理化性质的关系。结果表明，7种经济果林土壤有机碳含量香蕉地 > 甘蔗地 > 荔枝地 > 红橙地 > 青枣地 > 芒果地 > 龙眼地，土壤全氮含量荔枝地 > 红橙地 > 香蕉地 > 甘蔗地 > 青枣地 > 芒果地 > 龙眼地，土壤全磷含量青枣地 > 香蕉地 > 芒果地 > 甘蔗地 > 龙眼地 > 荔枝地 > 红橙地。总体上，雷州半岛经济果林土壤处于低碳储量、低氮储量、高磷储量状态；各类型经济果林不同深度土层土壤碳氮磷含量总体上随剖面深度加深呈先增加后降低的趋势。经济果林土壤碳氮磷储量与不同土壤理化性质相关性存在差异，整体上土壤碳储量与土壤含水量呈正相关，土壤氮储量与土壤主要理化性质间的相关性不显著，土壤磷储量与土壤含水量、pH值呈正相关，与土壤比重呈负相关。本研究结果可以为雷州半岛经济果林土壤碳氮磷研究提供基础数据，同时为经济果林经营管理提供科学支撑。
Abstract: Soil carbon, nitrogen and phosphorus play an important role in crop growth and driving nutrient cycling, indicating soil fertility and productivity. In this study, the distribution characteristics of soil carbon, nitrogen and phosphorus in different types of economic fruit forests in Leizhou Peninsula were analyzed, and the relationship between carbon and phosphorus and soil physicochemical properties was discussed. The results showed that soil organic carbon content in 7 economic fruit forests was banana field > sugarcane field > litchi field > Red and orange field > jujube field > Mango field > Longan field, soil total nitrogen content in litchi field > Red and orange field > banana field > sugarcane field > jujube field > Mango field > Longan field, soil total phosphorus content in jujube field > banana field > mango field > sugarcane field > Longan field > litchi field > Red and orange field. In general, the soil of economic fruit forest in Leizhou Peninsula was in the state of low carbon reserve, low nitrogen reserve and high phosphorus reserve. The soil carbon, nitrogen and phosphorus contents in different depth layers of different types of economic fruit forests generally increased first and then decreased with the deepening of profile depth. On the whole, soil carbon, nitrogen and phosphorus reserves were positively correlated with soil water content, while soil nitrogen reserves were not significantly correlated with soil main physical and chemical properties. Soil phosphorus reserves were positively correlated with soil water content and pH value, and negatively correlated with soil specific gravity. The results of this study can provide basic data for the study of soil carbon, nitrogen and phosphorus in economic fruit forest of Leizhou Peninsula, and provide scientific support for the management of economic fruit forest.
文章引用：卢芷晴, 陈碧珊, 钟诗明, 李烨, 冯婷婷, 李炎松, 王璟. 雷州半岛经济果林土壤碳氮磷储量分布特征及其影响因素[J]. 土壤科学, 2024, 12(2): 53-64. https://doi.org/10.12677/hjss.2024.122007

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