| 长期种植大棚蔬菜对涂地土壤生物学性质的影响 |
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| 引用本文： | 单英杰,章明奎.长期种植大棚蔬菜对涂地土壤生物学性质的影响[J].水土保持学报,2011,25(4):170-174. |
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| 作者姓名： | 单英杰 章明奎 |
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| 作者单位： | 1. 浙江省土肥站,杭州,310020
2. 浙江大学环境与资源学院资源科学系,杭州,310058 |
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| 基金项目： | 国家自然科学基金(41071145) |
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| 摘 要： | 在浙东滨海平原选择连作时间为3～4年,8～10年和20年以上的大棚蔬菜地及蔬菜-水稻轮作8～10年和20年以上的大棚蔬菜地,同时选择刚围垦和经围垦改良脱盐的其他农地作为对照,分析研究不同种植年限和种植模式蔬菜地土壤微生物区系和酶活性,探讨长期种植蔬菜对涂地土壤生物学性质的影响。结果表明,围垦涂地种植蔬菜3～4年内,土壤有机质、氮和磷的全量和有效态、土壤微生物生物量碳、微生物数量、土壤酶活性均呈现增加的趋势,土壤质量明显改善;连作蔬菜8～10年后,土壤速效养分继续呈增加趋势,但土壤盐分显著积累,同时土壤生物学性质明显恶化（细菌和放线菌数量减少、真菌数量增加、土壤酶活性降低、土壤微生物生物量碳降低）。与连作相比,轮作可显著地防止土壤生物学性质的恶化。磷脂脂肪酸（PLFA）的方法研究也表明,蔬菜种植时间、种植方式（连作、轮作）对土壤生物学性质有很大的影响。
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| 关 键 词： | 涂地 蔬菜 连作 轮作 生物化学性质 |
Effects of Long-term Continuous Cropping of Vegetable in Polytunnel Greenhouse on Biochemical Properties of Coastal Soils |
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| SHAN Ying-jie,ZHANG Ming-kui.Effects of Long-term Continuous Cropping of Vegetable in Polytunnel Greenhouse on Biochemical Properties of Coastal Soils[J].Journal of Soil and Water Conservation,2011,25(4):170-174. |
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| Authors: | SHAN Ying-jie ZHANG Ming-kui |
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| Institution: | SHAN Ying-jie1,ZHANG Ming-kui2(1.Soil and Fertilizer Station of Zhejiang Province,Hangzhou 310020,2.Department of Natural ResourceScience,College of Natural Resource and Environmental Sciences,Zhejiang University,Hangzhou 310058) |
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| Abstract: | Vegetable lands in polytunnel greenhouse from coastal plain of eastern Zhejiang province with continuous cropping of 3-4 years,8-10 years,and more than 20 years,and rice-vegetable rotation cropping of 8-10 years and more than 20 years were selected for studying differences in soil microbial community and enzyme activities in vegetable lands with varying cultivation years and planting systems.Both newly-enclosed coastal land and reclaimed coastal land without vegetable cropping were also selected for compari... |
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| Keywords: | coastal land vegetable continuous cropping rotation biochemical properties |
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