生物多样性 ›› 2018, Vol. 26 ›› Issue (10): 1127-1132. DOI: 10.17520/biods.2018081
所属专题: 土壤生物与土壤健康
• 研究报告 • 上一篇
伍一宁1,2, 王贺1, 钟海秀2, 许楠2, 李金博2, 王继丰2, 倪红伟2,*(), 邹红菲1,*()
收稿日期:
2018-03-19
接受日期:
2018-06-13
出版日期:
2018-10-20
发布日期:
2019-01-06
通讯作者:
倪红伟,邹红菲
作者简介:
# 共同第一作者
基金资助:
Yining Wu1,2, He Wang1, Haixiu Zhong2, Nan Xu2, Jinbo Li2, Jifeng Wang2, Hongwei Ni2,*(), Hongfei Zou1,*()
Received:
2018-03-19
Accepted:
2018-06-13
Online:
2018-10-20
Published:
2019-01-06
Contact:
Ni Hongwei,Zou Hongfei
About author:
# Co-first authors
摘要:
为研究大气CO2浓度升高条件下土壤动物的响应, 本文采用开顶式气室(OTC)控制大气CO2浓度, 设置了3个梯度, 分别为低浓度370 ppm背景CO2 (AC)、中浓度550 ppm CO2 (EC1)和高浓度700 ppm CO2 (EC2)。于2017年秋季取样并用改良Tullgren干漏斗法和Baermann湿漏斗分离土壤动物。结果表明: (1)共捕获土壤动物6,268头, 隶属于7纲15目, 优势类群为甲螨亚目, 占捕获量的88.13%; 常见类群为弹尾目和双翅目幼虫, 合计占捕获量的9%。不同CO2浓度水平下, 优势类群(甲螨亚目)和常见类群(弹尾目、双翅目幼虫)相同, 但是稀有类群存在一定差异。(2) CO2浓度升高显著增加了甲螨亚目的类群数和个体密度, 显著降低了弹尾目的类群数和个体密度, 对其他土壤动物无显著影响。(3)三江平原不同浓度条件下土壤动物的Shannon-Wiener多样性指数、Pielou均匀度指数均为AC > EC1 > EC2, 而优势度指数为EC2 > EC1 > AC, 丰富度指数为AC > EC2 > EC1。研究表明, 气候变化有可能影响土壤动物的群落结构以及土壤动物的多样性。
伍一宁, 王贺, 钟海秀, 许楠, 李金博, 王继丰, 倪红伟, 邹红菲 (2018) 三江平原土壤动物群落多样性对CO2浓度升高的响应. 生物多样性, 26, 1127-1132. DOI: 10.17520/biods.2018081.
Yining Wu, He Wang, Haixiu Zhong, Nan Xu, Jinbo Li, Jifeng Wang, Hongwei Ni, Hongfei Zou (2018) The response of diverse soil fauna communities to elevated CO2 concentrations in Sanjiang Plain. Biodiversity Science, 26, 1127-1132. DOI: 10.17520/biods.2018081.
AC | EC1 | EC2 | ||||
---|---|---|---|---|---|---|
密度 Density | 优势度 Dominance | 密度 Density | 优势度 Dominance | 密度 Density | 优势度 Dominance | |
弹尾目 Collembola | 7.98% | ++ | 5.63% | ++ | 2.53% | ++ |
甲螨亚目 Oribatida | 82.32% | +++ | 86.00% | +++ | 92.88% | +++ |
双翅目幼虫 Diptera larvae | 6.63% | ++ | 4.81% | ++ | 2.28% | ++ |
蜘蛛目 Araneae | 0.06% | + | 0.16% | + | 0.14% | + |
鞘翅目幼虫 Coleptera larvae | 0.68% | + | 0.55% | + | 0.25% | + |
同翅目 Homoptera | 0.49% | + | 0.27% | + | 0.11% | + |
线蚓科 Enchytraeidae | 0.49% | + | 0.38% | + | 0.21% | + |
原尾纲 Protura | 0.06% | + | - | - | - | - |
缨翅目 Thysanoptera | 0.06% | + | - | - | 0.04% | + |
中气门亚目 Mesostigmata | 0.80% | + | 0.33% | + | 0.11% | + |
啮虫目 Psocoptera | 0.06% | + | 0.33% | + | 0.14% | + |
绒螨科 Trombidformes | 0.06% | + | 0.16% | + | 0.18% | + |
线虫 Nemata | 0.06% | + | 0.16% | + | 0.78% | + |
鞘翅目成虫 Coleptera imago | 0.18% | + | 0.60% | + | 0.28% | + |
蜚蠊目 Blattoptera | 0.06% | + | 0.05% | + | 0.04% | + |
正蚓目 Lumbricida | - | - | - | - | 0.04% | + |
双翅目成虫 Diptera imago | - | - | 0.55% | + | - | - |
表1 不同CO2浓度处理下土壤动物群落组成和个体密度(ind./m2)。AC: 370 ppm CO2; EC1: 550 ppm CO2; EC2: 700 ppm CO2。
Table 1 Soil fauna communities and densities (ind./m2) under different CO2 concentration. AC, 370 ppm CO2; EC1, 550 ppm CO2; EC2, 700 ppm CO2.
AC | EC1 | EC2 | ||||
---|---|---|---|---|---|---|
密度 Density | 优势度 Dominance | 密度 Density | 优势度 Dominance | 密度 Density | 优势度 Dominance | |
弹尾目 Collembola | 7.98% | ++ | 5.63% | ++ | 2.53% | ++ |
甲螨亚目 Oribatida | 82.32% | +++ | 86.00% | +++ | 92.88% | +++ |
双翅目幼虫 Diptera larvae | 6.63% | ++ | 4.81% | ++ | 2.28% | ++ |
蜘蛛目 Araneae | 0.06% | + | 0.16% | + | 0.14% | + |
鞘翅目幼虫 Coleptera larvae | 0.68% | + | 0.55% | + | 0.25% | + |
同翅目 Homoptera | 0.49% | + | 0.27% | + | 0.11% | + |
线蚓科 Enchytraeidae | 0.49% | + | 0.38% | + | 0.21% | + |
原尾纲 Protura | 0.06% | + | - | - | - | - |
缨翅目 Thysanoptera | 0.06% | + | - | - | 0.04% | + |
中气门亚目 Mesostigmata | 0.80% | + | 0.33% | + | 0.11% | + |
啮虫目 Psocoptera | 0.06% | + | 0.33% | + | 0.14% | + |
绒螨科 Trombidformes | 0.06% | + | 0.16% | + | 0.18% | + |
线虫 Nemata | 0.06% | + | 0.16% | + | 0.78% | + |
鞘翅目成虫 Coleptera imago | 0.18% | + | 0.60% | + | 0.28% | + |
蜚蠊目 Blattoptera | 0.06% | + | 0.05% | + | 0.04% | + |
正蚓目 Lumbricida | - | - | - | - | 0.04% | + |
双翅目成虫 Diptera imago | - | - | 0.55% | + | - | - |
图1 三江平原不同CO2浓度处理下土壤动物优势类群类群数和密度。AC: 370 ppm CO2; EC1: 550 ppm CO2; EC2: 700 ppm CO2。不同小写字母表示不同处理之间个体密度或类群数有显著差异(P < 0.05)。
Fig. 1 Effect of CO2 concentration on soil fauna communities in Sanjiang Plain. AC, 370 ppm CO2; EC1, 550 ppm CO2; EC2, 700 ppm CO2. Different lowercase letters indicate significant difference in density or group richness among treatments (P < 0.05).
图2 三江平原不同CO2浓度处理下土壤动物群落的生态多样性指数(平均值 ± 标准差)。AC: 370 ppm CO2; EC1: 550 ppm CO2; EC2: 700 ppm CO2。不同小写字母表示不同处理之间多样性指数有显著差异(P < 0.05)。
Fig. 2 Diversity indices of soil fauna communities under different CO2 concentration in Sanjiang Plain. AC, 370 ppm CO2; EC1, 550 ppm CO2; EC2, 700 ppm CO2. Different lowercase letters indicate significant difference in diversity indices among treatments (P < 0.05).
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