Accumulation and runoff loss potential risk of soil phosphorus in agricultural land near Qiantang Ri...
Accumulation and runoff loss potential risk of soil phosphorus in agricultural land near Qiantang River
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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Chinese
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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为探讨钱塘江周边农田土壤磷流失风险，采集了181个代表性农田土壤，分析了土壤藻类可利用磷、植物有效磷（Olsen P）、水溶性磷和磷零吸附时的磷平衡浓度（EPC0）。结果表明，土壤藻类可利用磷在5.89~932.65 mg·kg-1之间，平均为105.30 mg·kg-1；植物有效磷在1.00~444.76 mg·kg-1之间，平均为30.57 mg·kg-1，达到较高水平；蔬菜地土壤磷素积累明显高于一般农田。土壤水溶性磷含量和EPC0值随土壤中植物有效磷积累而增加，当土壤中植物有效磷超过60 mg·kg-1时，土壤水溶性磷含量迅速增加；土壤中植物有效磷>60 mg·kg-1的样品比例达11.60%。土壤EPC0可作为评价土壤磷素向水体释放磷的强度指标，根据土壤EPC0值与植物有效磷之间的线...
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Accumulation and runoff loss potential risk of soil phosphorus in agricultural land near Qiantang River
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TN_cdi_proquest_journals_2369918410
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2369918410
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ISSN
2095-6819
E-ISSN
2095-6819
DOI
10.13254/j.jare.2018.0051
