东北林业大学学报2026，Vol.54Issue(3)：73-78,6.
降雨侵蚀下西双版纳人工林土壤磷素迁移特征及驱动因子
Characteristics and Driving Factors of Soil Phosphorus Migration in Plantations in Xishuangbanna Under Rainfall Erosion
摘要
Abstract
Taking typical plantations in Xishuangbanna(12-year-old rubber regeneration forest,20-year-old mature rubber for-est,and 26-year-old Macadamia ternifolia forest)as the research objects,the runoff plot positioning observation system was used to quantitatively analyze the spatio-temporal migration characteristics of phosphorus in 0-20 cm and 20-40 cm soil layers,litters and runoff water,and to explore the characteristics and driving factors of soil phosphorus migration in the three plantations under rainfall erosion.The results showed that:(1)The soil total phosphorus content showed significant differences among forest types.The soil total phosphorus content of 12-year-old rubber regeneration forest(0.47 g·kg-1)was significantly higher than that of other forest types,and the total phosphorus migration amount was the least at the mid-dle slope position,which had the strongest effect on soil phosphorus conservation.(2)At the end of the rainy season(Oc-tober-November),the soil total phosphorus content of the three forest types increased significantly,which was caused by reduced erosion and phosphorus fixation.(3)The total phosphorus concentration in runoff water was extremely significantly positively correlated with soil total phosphorus content(P＜0.01),and significantly positively correlated with litter total phosphorus content(P＜0.05),indicating that phosphorus migration caused by runoff scouring carried not only phosphorus in soil but also phosphorus in litters,and surface runoff was an important driving factor for phosphorus migration.关键词
橡胶林/澳洲坚果/降雨侵蚀/磷素/迁移/西双版纳Key words
Rubber forest/Macadamia ternifolia/Rainfall erosion/Phosphorus/Migration/Xishuangbanna分类
农业科技引用本文复制引用
罗敏,张兆豪,谢江,张桂梅,崔祥华,荣渝虹,张勇波,许彦崟..降雨侵蚀下西双版纳人工林土壤磷素迁移特征及驱动因子[J].东北林业大学学报,2026,54(3):73-78,6.基金项目
云南省农业基础研究联合专项项目(202301BD070001-068) （202301BD070001-068）
云南省科技计划项目农业联合专项项目(202301BD070001-259) （202301BD070001-259）
云南省热带作物科学研究所科技创新体系建设专项项目(RF2025-19). （RF2025-19）
