不同种植模式下苹果园土壤氮磷养分的分布特征

董贞凯; 穆兴民; 李朋飞; 赵沛义; 田耀金

董贞凯,穆兴民,李朋飞,赵沛义,田耀金.不同种植模式下苹果园土壤氮磷养分的分布特征[J].干旱地区农业研究,2021,39(6):194~199

不同种植模式下苹果园土壤氮磷养分的分布特征

The distribution characteristics of soil nitrogen and phosphorus nutrients under different planting models in apple orchards

DOI：10.7606/j.issn.1000-7601.2021.06.22

中文关键词: 种植模式苹果园土壤养分浅层聚集相关性

英文关键词:planting model apple orchard soil nutrients shallow aggregation correlation

基金项目:国家自然科学基金项目（42077075）；国家重点研发计划项目（2018YFD0800806）

作者	单位
董贞凯	浙江省水利水电勘测设计院，浙江杭州 310000；西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨凌 712100
穆兴民	西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨凌 712100；中国科学院水利部水土保持研究所，陕西杨凌 712100； 4.西安科技大学测绘科学与技术学院，陕西西安710000
李朋飞	西安科技大学测绘科学与技术学院，陕西西安710000
赵沛义	内蒙古自治区农牧业科学院资源环境与检测技术研究所，内蒙古呼和浩特 010000
田耀金	浙江省水利水电勘测设计院，浙江杭州 310000

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中文摘要:

为研究不同苹果种植模式下土壤养分变化情况，在陕西省千阳县2种不同种植模式(矮化和乔化种植)的苹果园区采集土样，通过测定0~100 cm土层土壤中的全氮、全磷和有效磷含量，分析和比较其土壤氮磷养分含量差异及剖面分布特征。结果表明：在0~100 cm深度的土层中，除全磷外，矮化苹果园土壤各养分含量显著低于乔化苹果园(P<0.05)，矮化富士、嘎啦苹果园和乔化富士苹果园全氮含量分别为0.60、0.63、0.76 g·kg^-1，全磷含量分别为0.58、0.56、0.63 g·kg^-1，有效磷含量分别为6.98、3.48、51.00 mg·kg^-1；矮化苹果园全氮、全磷以及有效磷含量主要在0~10 cm的表层土壤中聚集显著(P<0.05)；土壤养分含量与土层深度相关性显著(P<0.05)，矮化苹果园和乔化苹果园土壤养分含量与土层深度的变化过程分别符合幂函数和对数函数的变化趋势。

英文摘要:

To study soil nutrient changes under different apple planting modes, samples were collected from apple plantation with two different planting models (dwarfing and arborization) in Qianyang County, Shaanxi Province, to analyze and compare the differences in nitrogen and phosphorus nutrient contents and profile distribution characteristics of the soil based on the contents of total nitrogen, total phosphorus and available phosphorus of 0~100 cm soil depth. The results showed that the nutrient content, except for total phosphorus, of the dwarfed apple orchard soil was significantly lower than that of the arborized apple orchard (P<0.05). The total nitrogen contents of the dwarfed Fuji and Gara apple orchards and arborized Fuji apple orchard were 0.60, 0.63 g·kg^-1 and 0.76 g·kg^-1, total phosphorus contents were 0.58, 0.56 g·kg^-1 and 0.63 g·kg^-1, available phosphorus contents were 6.98, 3.48 mg·kg^-1 and 51.00 mg·kg^-1, respectively, in the soil layer at depth of 0~100 cm. In addition, surface accumulation of total nitrogen, total phosphorus and available phosphorus content was significant, mainly in the 0~10 cm soil layer, in the dwarfed apple orchard (P<0.05). There was a significant correlation between soil nutrient content and soil depth (P<0.05). The change process of soil nutrient content and soil layer depth in the dwarfed apple orchard and arborized apple orchard conformed to the change trend of power function and logarithmic function respectively.

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