| 上海松柏古树生长与土壤肥力因子的关系 |
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| 引用本文： | 汤珧华,潘建萍,邹福生,乐笑玮,傅徽楠,周圣贤.上海松柏古树生长与土壤肥力因子的关系[J].植物营养与肥料学报,2017,23(5):1402-1408. |
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| 作者姓名： | 汤珧华 潘建萍 邹福生 乐笑玮 傅徽楠 周圣贤 |
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| 作者单位： | 1.上海市绿化管理指导站，上海 200020 |
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| 基金项目： | 上海市绿化和市容管理局攻关项目(G140501)，上海科学技术委员会(17DZ2252000) |
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| 摘 要： | 【目的】松柏古树是上海古树的重要组成部分。土壤肥力状况影响松柏古树的生长，研究不同生长点的土壤性质，并分析其对松柏古树生长的影响，为松柏古树的土壤管理提供理论依据。【方法】以上海地区不同生长点的松柏古树为试验对象，测定了土壤的理化性质 (土壤容重、通气孔隙度、pH值、EC值) 和养分 (有机质、水解氮、有效磷、速效钾及钙、镁、铁、锌)，对土壤肥力进行了评价，并进一步分析了土壤对松柏古树生长的影响。【结果】上海松柏古树的土壤pH值为中性偏碱性，可溶性盐分整体较适中，有机质、水解氮的供应水平较高，速效钾供应充足，有效磷供应水平偏低，土壤中的钙、镁、铁、锌含量较为丰富，不存在中毒现象。松柏古树的生长受根系的菌根侵染率影响，与根系的菌根侵染率呈显著正相关，侵染率越高，生长越好；松柏古树的生长与土壤的理化性质有关，与土壤通气孔隙度呈显著正相关、与容重呈显著负相关，通气孔隙度越大，容重越小，生长越好。【结论】目前上海松柏古树的土壤容重偏大，通气孔隙度小，存在通气不良现象。在实际保护松柏古树过程中，宜采取提高菌根侵染率、提高土壤孔隙度、提供充足的有机质和降低土壤容重等措施。
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| 关 键 词： | 松柏古树 土壤肥力因子 菌根侵染率 |
| 收稿时间： | 2017-01-11 |
Relationship between soil fertility factors and growth of old pines and cypress in Shanghai |
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| TANG Yao-hua,PAN Jian-ping,ZOU Fu-sheng,LE Xiao-wei,FU Hui-nan,Zhou Sheng-xian.Relationship between soil fertility factors and growth of old pines and cypress in Shanghai[J].Plant Nutrition and Fertilizer Science,2017,23(5):1402-1408. |
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| Authors: | TANG Yao-hua PAN Jian-ping ZOU Fu-sheng LE Xiao-wei FU Hui-nan Zhou Sheng-xian |
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| Institution: | 1.Shanghai Garden Administration & Direction Station, Shanghai 200020, China |
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| Abstract: | Objectives]Old pine and old cypress trees are important parts of old trees in Shanghai. Soil fertility conditions affect growth of old pine and old cypress trees. This paper studied soil characteristics in fields of old pine and old cypress trees, and analyzed the effects on the growth for providing a theoretical basis of soil management of the old trees.Methods]Soil physical, chemical properties (soil bulk density, porosity, pH and EC) and soil nutrient contents (include soil organic matter, alkali hydrolysable N and available P, K, Ca, Mg, Fe and Zn) were determined. The relationship between the growth of old pine and old cypress trees and soil fertility was evaluated.Results]The soil pH was from neutrality to alkali, the contents of soil soluble salt were at a suitable level, the contents of soil organic matter were higher, the supply of available N was higher, the supply of available K was sufficient and the supply of available P was lower, and the contents of calcium, magnesium, iron and zinc in the soils were stable. The growth of the pine and cypress trees was influenced by the root mycorrhizal infection rate. The growth of the pine and cypress trees was also related to soil physical and chemical properties, and was positively correlated with the soil porosity.Conclusions]There were higher values in the soil bulk density and lower in soil aeration porosity, and the soil air permeability was weak. We proposed to improve the mycorrhizal infection rate and soil aeration porosity, provide sufficient organic matter and reduce soil bulk density in the process of actual protection of old pine and cypress trees. |
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| Keywords: | old pine and cypress trees soil fertility characteristics mycorrhizal infection rate |
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