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为探讨樱桃植株生长发育对根际土壤因子的影响,评价其根际生态环境,对土壤的pH值、速效养分、酶及微生物等19种指标的根际分布特征和相互关系进行了分析。结果表明,土壤pH值、氧化还原电位(Eh)、碱解氮、蛋白酶、过氧化氢酶、细菌及总菌数表现为根际负效应([R/S)<1],速效磷、速效钾、交换性钙、交换性镁、有效铁、有效锰、有效铜、脲酶、中性磷酸酶、放线菌及真菌表现为根际正效应([R/S)>1],有效锌根际效应不显著。脲酶、中性磷酸酶及蛋白酶3种水解酶活性与pH值及Eh的特征向量和载荷较大,可将其归为同一类综合指标,反映或评价以根际碱解氮为代表的土壤肥力状况。pH值、碱解氮等化学指标,土壤酶、微生物等生物活性指标在一定程度上可反映樱桃根际生态环境状况。
In order to investigate the effect of cherry plant growth and development on rhizosphere soil factors and assess the rhizosphere ecological environment, the rhizosphere distribution characteristics and correlations of 19 indicators including soil pH value, available nutrients, enzymes and microorganisms were analyzed. The results showed that the effects of rhizosphere negative effect ([R / S) <1], available phosphorus, quick effect of soil pH, redox potential (Eh), alkaline hydrolysis nitrogen, protease, catalase, Potassium, exchangeable calcium, exchangeable magnesium, available iron, available manganese, available copper, urease, neutral phosphatase, actinomycetes and fungi showed positive rhizosphere effect (R / S> 1) The international effect is not significant. Urease, neutral phosphatase and protease activity of three kinds of hydrolase activity and pH value and Eh eigenvector and load larger, can be classified as a comprehensive index of the same type, reflecting or evaluating rhizospheric alkali hydrolysis of nitrogen as the representative of soil fertility situation. pH, nitrogen and other chemical indicators of nitrogen, soil enzymes, microorganisms and other biological activity indicators to some extent, can reflect the ecological environment of cherry rhizosphere.