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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2012, Vol. 38 Issue (1): 71-80    DOI: 10.3785/j.issn.1008-9209.2012.01.010
农业科学     
浙江省耕地土壤氮磷钾现状分析
麻万诸１ ,２ , 章明奎３ , 吕晓男１ ,２
１ .浙江省农业科学院数字农业研究所,浙江杭州３１００２１ ;２ .浙江农林大学环境科技学院,浙江临安３１１３００ ;
３ .浙江大学环境与资源学院浙江省亚热带土壤与植物营养重点研究实验室,浙江杭州３１００５８
Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China
MA Wan‐zhu１ ,２ , ZHANG Ming‐kui３ , L 册Xiao‐nan１ ,２
1畅Institute o f Digital A griculture , Zhej iang Academy o f A gricultural Sciences , H angz hou 310021 , China ; 2畅College o f Env ironment Sciences and Technology , Zhe jiang A & F University , L in＇an , Zhe j iang 311300 ,China ; 3畅Zhe j iang Prov incial Key L aboratory o f Subtropical Soil and Plant N utrition , College o f Env ironmental and Resource Sciences , Zhe jiang University , H angz hou 310058 , China
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摘要： 对浙江省１１个地市８３ 县(市、区)的耕地土壤全N 、有效P 和有效K 进行分析.结果表明:与第２次土壤普查相比,浙江省耕地土壤全N 和有效K 平均含量略有下降,有效P 平均含量明显增加;全N质量分数低于１ g.kg -１ 、有效P 质量分数低于１０ mg.kg -１ 和有效K 质量分数低于８０ mg.kg -１ 的比例分别占１３.９０％ 、４４.８０％ 和４８.７％ ;土壤全N 、有效P 和有效K 等３ 种养分中存在１ 种以上养分低于以上数值的样本占总样本的７３畅７９％ ,土壤N 、P 、K 等３ 种养分不平衡状况明显;土壤全N 、有效P 和有
效K 存在较大的空间分异,变异程度为有效P(１９２％ ) ＞ 有效K(７１％ ) ＞ 全N(３９％ ) ;土壤全N 含量与土壤有机质积累呈显著的正相关,其中黏土＞ 黏壤土＞ 壤土＞ 砂土,水网平原＞ 河谷平原＞ 高丘、低丘＞ 滨海平原;土壤有效P 含量随pH 的下降而增加,其中砂土＞ 壤土＞ 黏壤土、黏土,高丘、滨海平原＞ 河谷平原、低丘＞ 水网平原;土壤有效K 与土壤pH 、质地和地貌类型存在一定的关系,随土壤pH值的下降而下降,其中黏土＞ 黏壤土＞ 壤土＞ 砂土,滨海平原＞ 水网平原＞ 河谷平原＞ 低丘＞ 高丘.
Abstract: Total N , available P and K of cultivated soils from １１ districts of Zhejiang Province were investigated.Statistical results showed that the average soil total N and available K decreased , and the average soil available P increased , as compared with those obtained at １９８０s.The cultivated soil samples with low levels of soil total N ( ＜１g.kg -１ ) , available P ( ＜ １０ mg.kg -１ ) and K ( ＜ ８０ mg.kg -１ )accounted for １３.９０％ , ４４.８０％ and ４８.１７％ of total soil samples , respectively.The proportion of soil samples with deficiency of one of N , P , and K was as high as ７３.７９％ .There were imbalances among soil N , P and K.Great variations in concentrations of soil total N , available P and K were found.The variation coefficients of soil total N , available P and K decreased in the order of available P ( １９２％ ) ＞available K (７１％ ) ＞ total N (３９％ ).Soil total N was correlated positively with organic matter , and decreased in the order of clayey soil ＞ clay‐loamy soil ＞ loamy soil ＞ sandy soil , and in the order of hydrographic net plain ＞ river plain ＞ hilly area ＞ coastal plain.Soil available P increased with decreasing pH ,and decreased in the order of sandy soil ＞ loamy soil ＞ clay loamy soil ,clayey soil , and in the order of high hilly area , coastal plain ＞ river plain , low hilly area ＞ hydrographic net plain.Soil available K was related to pH , texture , and geomorphic type , and decreased with decreasing pH.The available K decreased in the order of clayey soil ＞ clay loamy soil ＞ loamy soil ＞ sandy soil , and in the order of coastal plain ＞ hydrographic net plain ＞ river plain ＞ low hilly area ＞ high hilly area.
出版日期: 2012-01-20
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麻万诸
章明奎
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引用本文:

麻万诸,章明奎,吕晓男. 浙江省耕地土壤氮磷钾现状分析[J]. 浙江大学学报(农业与生命科学版), 2012, 38(1): 71-80.

MA Wanzhu,ZHANG Mingkui,L Xiaonan. Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China. , 2012, 38(1): 71-80.

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http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2012.01.010    或    http://www.zjujournals.com/agr/CN/Y2012/V38/I1/71

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