浙江农业学报 ›› 2019, Vol. 31 ›› Issue (6): 946-954.DOI: 10.3969/j.issn.1004-1524.2019.06.12

• 环境科学 • 上一篇    下一篇

施肥对农田土壤动物群落结构的影响

罗熳丽1, 2, 兰琴3, 王戈4, 魏洪3, 肖玖金1, 2, *, 张健1, 2   

  1. 1.四川农业大学 生态林业研究所,四川 成都 611130;
    2.四川农业大学 林业生态工程四川省重点实验室,四川 成都 611130;
    3.四川农业大学 旅游学院,四川 成都 611830;
    4.四川省九顶山省级自然保护区,四川 德阳 618400
  • 收稿日期:2018-12-28 出版日期:2019-06-25 发布日期:2019-06-26
  • 通讯作者: 肖玖金,E-mail:j.xiao@sicau.edu.cn
  • 作者简介:罗熳丽(1993—),女,四川泸州人,硕士研究生,主要从事森林生态学研究。E-mail: ml.luo@qq.com
  • 基金资助:
    国家自然科学基金青年科学基金(31400457); 长江上游生态安全协同创新中心开放基金; 四川省景观与游憩研究中心资助项目(JGYQ2018032)

Effect of fertilization on soil fauna community structure in farmland

LUO Manli1, 2, LAN Qin3, WANG Ge4, WEI Hong3, XIAO Jiujin1, 2, *, ZHANG Jian1, 2   

  1. 1. Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu 611130, China;
    2. Key Laboratory of Ecological Forestry Engineering in Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
    3. College of Tourism, Sichuan Agricultural University, Chengdu 611830, China;
    4. Provincial Nature Reserve of Jiuding Mountain of Sichuan Province, Deyang 618400, China
  • Received:2018-12-28 Online:2019-06-25 Published:2019-06-26

摘要: 为研究施肥对土壤动物群落结构的影响,以尿素为施肥材料,采用大型手捡和干、湿漏斗法,以不施肥处理为对照(CK),对施肥量分别为225 kg·hm-2(T1)、450 kg·hm-2(T2)、900 kg·hm-2(T3)、1 800 kg·hm-2(T4)、3 600 kg·hm-2(T5)等5个施肥处理下的土壤动物群落特征进行调查。结果显示:试验捕获的土壤动物分属3门13纲19目40科,各处理的土壤动物平均密度排序为CK>T2>T1>T3>T5>T4,类群数排序为T1>CK>T2>T4>T5>T3。随着施肥量增加,大型和中小型土壤动物的平均密度总体减少。同时,各处理中,T2处理的多样性指数和优势度指数最低,而均匀度指数最高。总体来看,过量施肥会减少土壤动物数量,降低土壤动物多样性,对土壤动物群落结构产生影响。

关键词: 施肥, 土壤动物, 群落结构

Abstract: In order to explore the impact of fertilization on soil fauna community structure, urea was selected as test fertilizer, and an experiment with different fertilizing amounts, i.e. 225 kg·hm-2 (T1), 450 kg·hm-2 (T2), 900 kg·hm-2 (T3), 1 800 kg·hm-2 (T4), 3 600 kg·hm-2 (T5), and plot without fertilizer as control (CK) was carried out. The hand-picked concentrations and wet and dry separation funnel were recorded to reflect the characteristics of soil fauna communities in the survey. It was shown that all the collected soil fauna samples went to 3 phyla, 13 classes, 19 orders, 40 families. The order of the average density of soil fauna of different treatments was as CK>T2>T1>T3>T5>T4. The order of species quantity of different treatments was as T1>CK>T2>T4>T5>T3. With the increasing application amount of fertilizer, the average density of both macro-fauna and nematodes and meso-fauna in soil showed a decreasing trend. Among all the treatments with fertilization, T2 exhibited the lowest Shannon-Wiener index and Simpson index, and the highest Pielou index. In general, over application of fertilizer would reduce the quantity of soil animals, the diversity of soil fauna community, and impact soil fauna community structure.

Key words: fertilization, soil fauna, community structure

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