| 引种栽培雷竹对秋季土壤动物群落结构的影响 |
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| 引用本文： | 赵波,肖玖金,周泓杨,张健.引种栽培雷竹对秋季土壤动物群落结构的影响[J].浙江农林大学学报,2016,33(3):409-417. |
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| 作者姓名： | 赵波 肖玖金 周泓杨 张健 |
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| 作者单位： | 1.四川农业大学 林学院，四川 成都 6111302.四川农业大学 都江堰校区，四川 都江堰 6118303.四川农业大学 生态林业研究所，四川 成都 611130 |
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| 基金项目： | 国家自然科学基金青年科学基金资助项目31400457，41201587四川省教育厅资助项目12ZB307，13ZA0258 |
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| 摘 要： | 为了解雷竹Phyllostachys violascens引种栽培对当地土壤动物群落结构的影响，于2014年10月，以毗邻乡土竹类慈竹Neosinocalamus affinis和农耕地为对照，采用手捡法和干湿漏斗法对土壤动物群落进行调查。结果显示:实验共收集到土壤动物3 477只，隶属于3门9纲24目；土壤动物平均密度排序为雷竹(3.47×105只·m-2)＞慈竹(9.65×104只·m-2)＞农耕地(4.58×104只·m-2)，类群数为慈竹(30个)＞雷竹(28个)＞农耕地(15个)，其中，各样地间土壤动物平均密度和类群数差异显著(P＜0.05)。密度-类群指数(IDG)以雷竹和慈竹样地显著高于农耕地(P＜0.05)，各样地土壤动物丰富度指数(D)和多样性指数(H′)存在显著差异(P＜0.05)，其余各指数差异不显著(P＞0.05)；各样地土壤动物垂直分布均呈现表聚性分布特性；雷竹与慈竹样地土壤动物的群落相似性较高，各样地土壤动物的相似性指数均表现为随土层深度的增加而降低。雷竹的引种栽培对当地土壤动物群落分布与多样性特征产生了一定影响。图2表5参32
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| 关 键 词： | 土壤动物学 雷竹 土壤动物 群落结构 物种多样性 |
| 收稿时间： | 2015-06-09 |
Community structure and biodiversity characteristics of soil fauna for Phyllostachys violascens stands in autumn |
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| ZHAO Bo,XIAO Jiujin,ZHOU Hongyang,ZHANG Jian.Community structure and biodiversity characteristics of soil fauna for Phyllostachys violascens stands in autumn[J].Journal of Zhejiang A&F University,2016,33(3):409-417. |
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| Authors: | ZHAO Bo XIAO Jiujin ZHOU Hongyang ZHANG Jian |
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| Institution: | 1.Forestry College, Sichuan Agricultural University, Chengdu 611130, Sichuan, China2.Dujiangyan Campus, Sichuan Agricultural University, Dujiangyan 611830, Sichuan, China3.Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu 611130, Sichuan, China |
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| Abstract: | Phyllostachys violascens, an economic plant, was introduced into Dujiangyan from Zhejiang Province after earthquake, not only can increase local people’s incomes, but also plays an important role in ecology construction. Soil fauna, an important component of soil ecosystems, the density, groups and diversity were easily affected by the plant types. To determine the effects of Phyllostachys violascens cultivation on soil fauna community structure, a study was carried out in fields of Ph. violascens, Neosinocalamus affinis, and cropland in October 2014. Macrofauna samples (n=3) were picked up by hand with the area of 50 cm × 50 cm(0.25 m2). After recording the types of soil fauna, the samples were put into a container with alcohol and transported to laboratory for detailed classification to family level. Mesofauna was collected by steel core (r = 5 cm, v =100 cm3) and store in soil fauna sealing black bags. The collected samples then were transported to laboratory within 12 h and subsequently separated by Baermann method (for nematodes) and Tullgren method (for mesofauna) over a period of 48 h, respectively. All collected soil fauna were calculated and classified by microscope, and identified to the family level following Pictorial Keys to Soil Animals of China. Indexes used in the analysis included: average density, group number, density-groups, Margalef, Shannon-Wiener, Pieluo, Simpson and Sorensen. A total of 3 477 soil fauna individuals, belonging to 3 phyla, 9 classes, and 24 orders were collected. Significant differences were found among the three plots (F test, P < 0.05): with the average density for soil fauna being Ph. violascens (3.47 ×105 ind·m-2) > N. affinis (9.65 ×104 ind·m-2) > cropland (4.58 ×104 ind·m-2) and with the order for group number being N. affinis (30) > Ph. violascens (28) > cropland (15). The density-groups index for Ph. violascens was significantly higher (F test, P < 0.05) than that in the other two plots; significant differences for the Margalef index value were found in multiple comparison of three plots (F test, P < 0.05); and no significant differences were found among the three plots for Pieluo and Simpson index . For vertical distribution in the three plots, soil fauna density decreased with increasing depth. The largest similarity index was found between the Ph. violascens and N. affinis, with a decrease as depth increased. After comparing the soil fauna characteristics with N. affinis and cropland, respectively, introducing Ph. violascens cultivation had a positive effect on the distribution and diversity of soil fauna. Ch, 2 fig. 5 tab. 32 ref.] |
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