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覆盖方式对干热河谷区枣园土壤温度和树体光合特性及果实品质的影响
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引用本文:刘 博,黄华梨,王多锋,张 瑞,张夏燚,刘 兵,王延秀.覆盖方式对干热河谷区枣园土壤温度和树体光合特性及果实品质的影响[J].西北农业学报,2021,(3):377~385
DOI:10.7606/j.issn.1004-1389.2021.03.006
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作者单位
刘 博,黄华梨,王多锋,张 瑞,张夏燚,刘 兵,王延秀 (1.甘肃农业大学 园艺学院兰州 730070
2.甘肃省林业科学研究院兰州 730070) 
基金项目:中央财政林业科技推广项目(2018ZYTG4);甘肃省省级财政林业项目(2125)。
中文摘要:为研究不同覆盖方式对枣园土壤温度、树体光合特性及果实品质的影响,设置清耕(CK)、人工种植花生(T1)、黑麦草(T2)、树枝秸秆碎屑(T3)、人工种植黄豆(T4)、黑膜(T5)6种土壤管理模式处理,采用主成分分析综合评价,筛选最佳土壤管理方式。结果表明:7月份,与CK相比,各处理对不同土层土壤温度均有明显的降温作用,在5 cm土层,T4分别较 T2、T5、CK降低2.87%、10.96%、12.77%,而T5较明显地增加土层土壤温度。不同覆盖方式均不同程度地提高叶片净光合速率, T4处理最为显著,在6、7、8月份较CK分别提高21.67%、40.05%、36.08%;且T4处理对维生素含量、可溶性糖含量、枣果横径的影响显著高于其他处理,较CK分别增加25.00%、10.70%、9.45%。对16个指标进行相关性与主成分分析,提取3个主成分后的综合分析结果表明,不同覆盖方式对枣树的效果为T4>T1>T5>T3>T2>CK。综上所述,采用人工种植黄豆覆盖处理是促进甘肃白龙江干热河区枣园最佳的土壤管理方式。
中文关键词:骏枣  不同覆盖方式  土壤温度  光合参数  果实品质  相关性分析
 
Effect of Mulching Methods on Soil Temperature, Photosynthetic Characteristic and Fruit Quality of Jujube Orchard in Dry and Hot Valley
Abstract:In order to study the effects of different mulching methods on soil temperature,photosynthetic parameters and fruit quality in jujube orchard,six soil management modes were compared,which included clear ploughing (CK),artificial planting peanut (T1),ryegrass (T2),branch straw debris (T3),artificial planting soybean (T4) and black film (T5) ,and the best soil management mode was selected by principal component analysis.The results showed that in July,compared with CK,each treatment had obvious cooling effect on soil temperature at different soil layers.Compared with T2,T5 and CK,the cooling effect on soil temperature decreased by 2.87%,10.96% and 12.77% in T4 at 5 cm soil layer,respectively,but soil temperature in T5 significantly increased.Different mulching methods could increase the net photosynthetic rate of leaves to varying degrees,T4 treatment was the most significantin increase of net photosynthetic rate of leaves,which increased 21.67%,40.05% and 36.08% compared with CK in June,July and August,respectively.And the effect of T4 treatment on vitamin content,soluble sugar content and jujube fruit diameter were significantly higher than other treatments,which increased by 25.00%,10.70% and 9.45% compared with CK The correlation and principal component analysis of 16 indexes were carried out,and the comprehensive analysis results showed that the effect of different mulching methods on jujube was T4>T1>T5>T3>T2>CK.To sum up,artificial planting soybean mulching (T4) treatment may be the best way to promote the soil management of jujube orchard in the dry-hot area of Bailong River,Gansu province.
keywords:Jun jujube  Different coverage methods  Soil temperature  Photosynthetic parameters  Fruit quality  Correlation analysis
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