秸秆还田对黑土区西部农田中小型土壤动物群落的影响

生态学杂志

秸秆还田对黑土区西部农田中小型土壤动物群落的影响

刘鹏飞¹,红梅^1,2*,常菲¹,高海燕¹,李志新³,马玺⁴

（¹内蒙古农业大学，呼和浩特 010011；²内蒙古自治区土壤质量与养分资源重点实验室，呼和浩特 010011；³扎赉特旗农业技术推广中心，内蒙古兴安盟 137600；⁴兴安盟土壤肥料和节水农业工作站，内蒙古兴安盟 137600）

出版日期:2018-01-10 发布日期:2018-01-10

Impact of straw returning on cropland soil mesofauna community in the western part of black soil area.

LIU Peng-fei¹, HONG Mei^1,2*, CHANG Fei¹, GAO Hai-yan¹, LI Zhi-xin³, MA Xi⁴

(¹Inner Mongolia Agricultural University, Hohhot 010011, China; ²Inner Mongolia Key Laboratory of Soil Quality and Nutrient Resources, Huhhot 010011, China; ³Agricultural Technology Extension Center in Zhalaid Banner, Hinggan League 137600, Inner Mongolia, China; ⁴Agricultural Station of Soil Fertilizer and Water saving in Hinggan League, Hinggan League 137600, Inner Mongolia, China).

Online:2018-01-10 Published:2018-01-10

摘要/Abstract

摘要： 为了解秸秆还田对黑土区农田中小型土壤动物群落的影响，于2016年6—9月在内蒙古兴安盟扎赉特旗调查了玉米秸秆按产量还田0(CK)、4500(JG1)、9000(JG2)、13500 (JG3)和18000 kg·hm^-2 (JG4) 5个水平对农田中小型土壤动物群落影响。结果表明：从试验样地共捕获中小型土壤动物3350657只，隶属于53个类群；秸秆还田显著提高中小型土壤动物密度(F=12.040,P<0.05)，秸秆还田提高了中小型土壤动物的类群数，但未达到显著水平(P>0.05)；JG4处理下中小型土壤动物密度最高(933030只·m^-2)，类群数最多(34)；月份对中小型土壤动物群落影响明显，密度和类群数均在7月最多；JG4处理下中小型土壤动物丰富度指数和优势度指数最高，分别为0.98和0.34；CK处理下中小型土壤动物多样性指数和均匀度指数最高，分别为1.72和1.73。相关分析表明：中小型土壤动物密度和优势度指数与土壤含水量呈显著正相关(P<0.05)，而与土壤容重呈显著负相关(P<0.05)；中小型土壤动物密度与土壤温度呈显著正相关(P<0.05)；中小型土壤动物类群数和丰富度指数与土壤有机质呈极显著正相关(P<0.01)；中小型土壤动物群落多样性指数与土壤pH之间的相关性不显著(P>0.05)。

关键词: 南漪湖, 群落演替, 枝角类, 沉积物, 卵鞍, 总磷, 总氮

Abstract:

In order to understand the effect of straw returning on cropland soil mesofauna community in the black soil, an experiment with five different amounts of maize straw returning,e.g.，0 (CK), 4500 (JG1), 9000 (JG2), 13500 (JG3), and 18000 kg·hm^-2 (JG4), was carried out in Zhalaid Banner of Inner Mongolia from June to September in 2016. The results showed that totaling 3350657 individuals of soil mesofauna were captured and they were classified into 53 taxonomic groups. Straw returning significantly increased soil mesofauna density (F=12.040, P<0.05), and taxonomic groups. The soil mesofauna density (933030 ind·m^-2) and taxonomic groups (34) were the highest in JG4 treatment. The sampling month had a significant influence on soil mesofauna community, with highest density and taxonomic groups of soil mesofauna in July. The richness and dominance indexes were the highest in JG4, with the values of 0.98 and0.34, respectively. The diversity and evenness indexes were the highest in CK, with the values of 1.72 and 1.73, respectively. Correlation analysis showed soil mesofauna density and dominance index were correlated positively with soil humidity (P<0.05), while negatively with soil bulk density (P<0.05). There was significant positive correction between soil mesofauna density and soil temperature (P<0.05). Soil mesofauna taxonomic group number and richness index were significantly correlated with soil organic matter content (P<0.01). Soil mesofauna community had no correlation with soil pH (P>0.05).

Key words: total phosphorus, sediment, community succession., Lake Nanyi, cladocera, total nitrogen, ephippia

刘鹏飞,红梅,常菲,高海燕,李志新,马玺. 秸秆还田对黑土区西部农田中小型土壤动物群落的影响[J]. 生态学杂志.

LIU Peng-fei, HONG Mei, CHANG Fei, GAO Hai-yan, LI Zhi-xin, MA Xi. Impact of straw returning on cropland soil mesofauna community in the western part of black soil area.[J]. cje.

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