生态环境学报 ›› 2024, Vol. 33 ›› Issue (5): 699-707.DOI: 10.16258/j.cnki.1674-5906.2024.05.004
蒋云峰*(), 严婷, 刘俊男, 马丙增, 王海萌, 窦笑萌
收稿日期:
2024-01-29
出版日期:
2024-05-18
发布日期:
2024-06-27
通讯作者:
*作者简介:
蒋云峰(1980年生),副教授,博士,主要从事土壤动物生态学方面的研究。E-mail: jiangyf427@126.com
基金资助:
JIANG Yunfeng*(), YAN Ting, LIU Junnan, MA Bingzeng, WANG Haimeng, DOU Xiaomeng
Received:
2024-01-29
Online:
2024-05-18
Published:
2024-06-27
摘要:
为保护黑土资源,以少/免耕秸秆覆盖还田为主要特征的保护性耕作在东北黑土区广泛推广。研究黑土区农田中型土壤动物群落对秸秆覆盖频率的响应利于理解保护性耕作对农田土壤生态环境的影响。在中国科学院设于吉林省梨树县保护性耕作研发基地开展研究,试验设5种处理:常规耕作(CT)、免耕无秸秆覆盖(NT-0)、免耕低频秸秆覆盖(NT-1/3)、免耕中频秸秆覆盖(NT-2/3)和免耕高频秸秆覆盖(NT-3/3)。通过调查不同覆盖频率样地中型土壤动物组成,研究其对秸秆覆盖频率的响应规律。结果显示,中型土壤动物总个体密度春季NT-2/3显著高于其他处理,秋季NT-0和NT-1/3显著高于CT;多样性和均匀度夏季CT、NT-1/3和NT-2/3显著高于NT-0,秋季秸秆覆盖处理显著高于NT-0。各中型土壤动物类群对秸秆覆盖频率响应存在明显季节变异。甲螨亚目春季NT-2/3显著高于其他处理,夏秋季NT-0显著高于其他处理;辐螨亚目春秋季NT-1/3显著高于CT、NT-0。春季球角跳科和长角跳科分别是NT-3/3、NT-2/3显著高于CT和NT-0;夏季球角跳科NT-2/3显著高于CT、NT-0和NT-1/3;秋季等节跳科、球角跳科、长角跳科和拟亚跳科分别是NT-1/3、NT-0和NT-3/3、NT-3/3、NT-0显著高于CT。覆盖频率与中型土壤动物总个体密度在春秋季而与多样性和均匀度指数在夏秋季呈显著二次曲线关系;与弹尾目密度在春季,蜱螨目密度在3个季节呈显著二次曲线关系。这说明中型土壤动物对秸秆覆盖频率的响应存在季节变异。该研究为黑土区秸秆覆盖还田有效管理提供了土壤动物学依据。
中图分类号:
蒋云峰, 严婷, 刘俊男, 马丙增, 王海萌, 窦笑萌. 黑土区农田中型土壤动物群落对免耕玉米秸秆覆盖频率的响应[J]. 生态环境学报, 2024, 33(5): 699-707.
JIANG Yunfeng, YAN Ting, LIU Junnan, MA Bingzeng, WANG Haimeng, DOU Xiaomeng. Responses of Soil Mesofauna in Agricultural Fields to the Frequency of Corn Stover Mulching in Northeastern China’s Black Soil Region[J]. Ecology and Environment, 2024, 33(5): 699-707.
处理 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |
---|---|---|---|---|---|---|---|---|---|
CT | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 |
NT-0 | |||||||||
NT-1/3 | * | * | * | ||||||
NT-2/3 | * | * | * | * | * | * | |||
NT-3/3 | * | * | * | * | * | * | * | * | * |
表1 试验处理与秸秆不同覆盖频率
Table 1 Experimental treatments with different corn stover mulching frequencies
处理 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |
---|---|---|---|---|---|---|---|---|---|
CT | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 | 垄作 |
NT-0 | |||||||||
NT-1/3 | * | * | * | ||||||
NT-2/3 | * | * | * | * | * | * | |||
NT-3/3 | * | * | * | * | * | * | * | * | * |
项目 | 季节 | 处理 | 季节×处理 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
df | F | p | df | F | p | df | F | p | ||||
群落 | 总个体密度 | 2 | 28.390 | <0.001 | 4 | 5.931 | 0.001 | 8 | 5.114 | <0.001 | ||
多样性指数 | 2 | 1.883 | 0.164 | 4 | 1.906 | 0.126 | 8 | 1.949 | 0.076 | |||
均匀度指数 | 2 | 2.664 | 0.081 | 4 | 2.754 | 0.039 | 8 | 2.762 | 0.014 | |||
主要类群密度 | 甲螨亚目 | 2 | 23.954 | <0.001 | 4 | 9.973 | <0.001 | 8 | 10.851 | <0.001 | ||
辐螨亚目 | 2 | 1.026 | 0.367 | 4 | 2.801 | 0.036 | 8 | 0.694 | 0.695 | |||
等节跳科 | 2 | 3.284 | 0.047 | 4 | 1.487 | 0.222 | 8 | 1.670 | 0.132 | |||
球角跳科 | 2 | 30.319 | <0.001 | 4 | 2.947 | 0.030 | 8 | 1.420 | 0.670 | |||
拟亚跳科 | 2 | 6.302 | 0.004 | 4 | 1.063 | 0.385 | 8 | 1.521 | 0.177 | |||
长角跳科 | 2 | 4.803 | 0.013 | 4 | 2.591 | 0.049 | 8 | 1.120 | 0.368 | |||
铗尾虫 | 2 | 44.662 | <0.001 | 4 | 5.092 | 0.002 | 8 | 5.092 | <0.001 | |||
双翅目 | 2 | 9.935 | 0.002 | 4 | 0.788 | 0.551 | 8 | 1.481 | 0.206 |
表2 季节和处理对中型土壤动物群落结构和主要类群密度影响的二因素方差分析
Table 2 The results of two-way ANOVA for seasons, treatments, and their interactions affected community structure and dominant groups of soil mesofauna
项目 | 季节 | 处理 | 季节×处理 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
df | F | p | df | F | p | df | F | p | ||||
群落 | 总个体密度 | 2 | 28.390 | <0.001 | 4 | 5.931 | 0.001 | 8 | 5.114 | <0.001 | ||
多样性指数 | 2 | 1.883 | 0.164 | 4 | 1.906 | 0.126 | 8 | 1.949 | 0.076 | |||
均匀度指数 | 2 | 2.664 | 0.081 | 4 | 2.754 | 0.039 | 8 | 2.762 | 0.014 | |||
主要类群密度 | 甲螨亚目 | 2 | 23.954 | <0.001 | 4 | 9.973 | <0.001 | 8 | 10.851 | <0.001 | ||
辐螨亚目 | 2 | 1.026 | 0.367 | 4 | 2.801 | 0.036 | 8 | 0.694 | 0.695 | |||
等节跳科 | 2 | 3.284 | 0.047 | 4 | 1.487 | 0.222 | 8 | 1.670 | 0.132 | |||
球角跳科 | 2 | 30.319 | <0.001 | 4 | 2.947 | 0.030 | 8 | 1.420 | 0.670 | |||
拟亚跳科 | 2 | 6.302 | 0.004 | 4 | 1.063 | 0.385 | 8 | 1.521 | 0.177 | |||
长角跳科 | 2 | 4.803 | 0.013 | 4 | 2.591 | 0.049 | 8 | 1.120 | 0.368 | |||
铗尾虫 | 2 | 44.662 | <0.001 | 4 | 5.092 | 0.002 | 8 | 5.092 | <0.001 | |||
双翅目 | 2 | 9.935 | 0.002 | 4 | 0.788 | 0.551 | 8 | 1.481 | 0.206 |
图2 不同处理样地中型土壤动物总个体密度、多样性和均匀度比较 不同大写字母表示同一处理不同季节间的差异显著(p<0.05),不同小写字母表示同一季节不同处理间的差异显著(p<0.05);平均值±标准误。下同
Figure 2 The variations of the total density, Shannon-Wiener diversity and Evenness indices of soil mesofauna in the five treatments across the three seasons
处理 | 春季 | 夏季 | 秋季 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
t | p | t | p | t | p | |||||||
CT vs. NT-0 | 0.433 | 0.945 | 2.654 | 0.031 | 4.077 | 0.024 | ||||||
CT vs. NT-1/3 | 2.319 | 0.089 | 0.535 | 0.810 | 1.849 | 0.059 | ||||||
CT vs. NT-2/3 | 3.859 | 0.028 | 1.545 | 0.082 | 2.131 | 0.027 | ||||||
CT vs. NT-3/3 | 3.071 | 0.029 | 1.379 | 0.109 | 2.633 | 0.031 | ||||||
NT-0 vs. NT-1/3 | 3.063 | 0.029 | 2.802 | 0.026 | 1.281 | 0.357 | ||||||
NT-0 vs. NT-2/3 | 4.762 | 0.026 | 1.863 | 0.061 | 2.681 | 0.026 | ||||||
NT-0 vs. NT-3/3 | 3.726 | 0.031 | 1.062 | 0.392 | 2.952 | 0.028 | ||||||
NT-1/3 vs. NT-2/3 | 4.673 | 0.030 | 1.497 | 0.082 | 0.937 | 0.489 | ||||||
NT-1/3 vs. NT-3/3 | 2.695 | 0.027 | 1.498 | 0.057 | 1.00 | 0.406 | ||||||
NT-2/3 vs. NT-3/3 | 1.349 | 0.204 | 0.869 | 0.446 | 0.196 | 1.000 |
表3 基于Bray-Curtis的多元方差分析(PerMANOVA)
Table 3 Permutational multivariate analysis of variance (PerMANOVA) based on Bray-Curtis distance measurement of the community composition of mesofauna between treatments in three seasons
处理 | 春季 | 夏季 | 秋季 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
t | p | t | p | t | p | |||||||
CT vs. NT-0 | 0.433 | 0.945 | 2.654 | 0.031 | 4.077 | 0.024 | ||||||
CT vs. NT-1/3 | 2.319 | 0.089 | 0.535 | 0.810 | 1.849 | 0.059 | ||||||
CT vs. NT-2/3 | 3.859 | 0.028 | 1.545 | 0.082 | 2.131 | 0.027 | ||||||
CT vs. NT-3/3 | 3.071 | 0.029 | 1.379 | 0.109 | 2.633 | 0.031 | ||||||
NT-0 vs. NT-1/3 | 3.063 | 0.029 | 2.802 | 0.026 | 1.281 | 0.357 | ||||||
NT-0 vs. NT-2/3 | 4.762 | 0.026 | 1.863 | 0.061 | 2.681 | 0.026 | ||||||
NT-0 vs. NT-3/3 | 3.726 | 0.031 | 1.062 | 0.392 | 2.952 | 0.028 | ||||||
NT-1/3 vs. NT-2/3 | 4.673 | 0.030 | 1.497 | 0.082 | 0.937 | 0.489 | ||||||
NT-1/3 vs. NT-3/3 | 2.695 | 0.027 | 1.498 | 0.057 | 1.00 | 0.406 | ||||||
NT-2/3 vs. NT-3/3 | 1.349 | 0.204 | 0.869 | 0.446 | 0.196 | 1.000 |
图5 免耕玉米秸秆覆盖频率与中型土壤动物密度、多样性和均匀度指数的关系
Figure 5 Relationships of the total density, and Shannon-Wiener and Evenness indices of soil mesofauna community with the frequency of corn stover mulching
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