浙江省温岭市土壤pH及氮磷钾养分时空动态变化特征

doi:10.3785/j.issn.1008-9209.2020.07.281

浙江大学学报（农业与生命科学版）

2021, Vol. 47

Issue (4): 517-526 DOI: 10.3785/j.issn.1008-9209.2020.07.281

资源利用与环境保护

浙江省温岭市土壤pH及氮磷钾养分时空动态变化特征

陈謇¹(

),丁安娜¹,施加春²(

)

^1.温岭市植保耕肥能源总站，浙江温岭 317500
^2.浙江大学环境与资源学院，浙江省农业资源与环境重点实验室，杭州　310058

Spatio-temporal variation characteristics of soil pH, nitrogen, phosphorus and potassium nutrients in Wenling City of Zhejiang Province

Jian CHEN¹(

),Anna DING¹,Jiachun SHI²(

)

^1.Wenling Crop Protection and Tillage Fertilizer and Energy Sources Station, Wenling 317500, Zhejiang, China
^2.Zhejiang Provincial Key Laboratory of Agriculture Resource and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China

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摘要：

采用数理统计和反距离权重空间插值分析方法，分别对浙江省温岭市2006年和2017年间隔11年的土壤pH、有机质、全氮、有效磷和速效钾含量数据进行时空动态变化趋势分析。结果表明：土壤呈现一定的酸化趋势，pH下降达5.40%；土壤有机质和氮磷钾养分总体上呈现增加趋势，其中土壤有效磷含量增幅最为明显，增幅高达50.34%；其次是土壤速效钾，增幅达到26.23%；同时，土壤有机质和全氮含量也有一定程度的增加，增幅分别为13.97%和10.76%。空间分析结果表明，土壤pH总体上呈现西降东升的趋势，土壤全氮含量总体上呈现北减南增现象，土壤有效磷和速效钾含量总体上都显著增加。因此，在后续全市域土壤培肥过程中，需依据土壤pH及氮磷钾养分丰缺情况，并结合所种作物的需肥规律，进行合理平衡施肥，实现全市耕地土壤质量的全面提升和土壤的可持续发展。

关键词： 土壤pH; 土壤有机质; 氮磷钾养分; 时空变化特征

Abstract:

Spatio-temporal variation characteristics of soil pH, soil organic matter, total nitrogen, available phosphorus and available potassium contents were determined in Wenling City of Zhejiang Province in 2006 and 2017, respectively, using the analysis methods of mathematical statistics and inverse distance weighting spatial interpolation. The results showed that the soils presented a certain acidification trend with a decrease in soil pH of 5.40%. Soil organic matter (SOM) and nitrogen, phosphorus and potassium contents showed an overall increasing trend. Available phosphorus and available potassium contents increased significantly, with increased ratios of 50.34% and 26.23%, respectively. SOM and total nitrogen contents also increased to a certain extent, increasing by 13.97% and 10.76%, respectively. The results of spatial analysis showed that the soil pH decreased in the west of Wenling, while increased in the east of Wenling. Total nitrogen contents of the soils decreased in the north of Wenling, while increased in the south of Wenling. The available phosphorus and available potassium contents increased significantly. The above results indicate that fertilizer application will be implemented according to soil pH, the abundance and deficiency of nitrogen, phosphorus and potassium, and the law of fertilizer requirements for crops. The improvement of the soil quality and soil sustainable development will be focused on.

Key words: soil pH soil organic matter nitrogen, phosphorus and potassium nutrients spatio-temporal variation characteristics

收稿日期: 2020-07-28 出版日期: 2021-09-02

CLC:

S 158.2

基金资助: 国家重点研发计划(2018YFC1800501);浙江省自然资源厅科技项目(2020006)

通讯作者: 施加春 E-mail: 7038103@qq.com;jcshi@zju.edu.cn

作者简介: 陈謇（https://orcid.org/0000-0001-7129-9036），Tel：+86-576-86222530，E-mail：7038103@qq.com

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引用本文:

陈謇,丁安娜,施加春. 浙江省温岭市土壤pH及氮磷钾养分时空动态变化特征[J]. 浙江大学学报（农业与生命科学版）, 2021, 47(4): 517-526.

Jian CHEN,Anna DING,Jiachun SHI. Spatio-temporal variation characteristics of soil pH, nitrogen, phosphorus and potassium nutrients in Wenling City of Zhejiang Province. Journal of Zhejiang University (Agriculture and Life Sciences), 2021, 47(4): 517-526.

链接本文:

http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2020.07.281 或 http://www.zjujournals.com/agr/CN/Y2021/V47/I4/517

图1 2006年（A）、2017年（B）土壤调查采样点位分布图

表1 2006—2017年间土壤pH及养分含量变化描述性统计分析

图2 2006年（A）、2017年（B）土壤pH时空变化分布图

图3 11年来土壤pH变化分布图黄色-红色区域表明土壤pH增加，绿色区域表明土壤pH下降。

图4 2006年（A）、2017年（B）土壤有机质时空变化分布图

图5 11年来土壤有机质变化分布图黄色-红色区域表明土壤有机质含量增加，绿色区域表明土壤有机质含量下降。

图6 2006年（A）、2017年（B）土壤全氮时空变化分布图

图7 11年来土壤全氮变化分布图黄色-红色区域表明土壤全氮含量增加，绿色区域表明土壤全氮含量下降。

图8 2006年（A）、2017年（B）土壤有效磷时空变化分布图

图9 11年来土壤有效磷变化分布图黄色-红色区域表明土壤有效磷含量增加，绿色区域表明土壤有效磷含量下降。

图10 2006年（A）、2017年（B）土壤速效钾时空变化分布图

图11 11年来土壤速效钾变化分布图黄色-红色区域表明土壤速效钾含量增加，绿色区域表明土壤速效钾含量下降。

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