[1]徐 晓,徐 瑾,曹国华,等.接种蚯蚓与添加凋落物对杨树人工林土壤理化性质和微生物生物量的影响[J].福建农林大学学报(自然科学版),2021,50(02):264-269.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.02.017]
 XU Xiao,XU Jin,CAO Guohua,et al.Effects of earthworm inoculation and litter addition on soil physical and chemical properties and soil microbial biomass in poplar plantation[J].,2021,50(02):264-269.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.02.017]
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接种蚯蚓与添加凋落物对杨树人工林土壤理化性质和微生物生物量的影响()
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福建农林大学学报(自然科学版)[ISSN:1671-5470/CN:35-1255/S]

卷:
50卷
期数:
2021年02期
页码:
264-269
栏目:
资源与环境
出版日期:
2021-02-15

文章信息/Info

Title:
Effects of earthworm inoculation and litter addition on soil physical and chemical properties and soil microbial biomass in poplar plantation
文章编号:
1671-5470(2021)02-0264-06
作者:
徐 晓1 徐 瑾1 曹国华2 王国兵1
1.南京林业大学南方现代林业协同创新中心,江苏 南京 210037; 2.江苏省东台市林场,江苏 东台 224200
Author(s):
XU Xiao1 XU Jin1 CAO Guohua2 WANG Guobing1
1.Co-innovation Center for Sustainable Forestry in Southern China, Nanjing, Jiangsu 210037, China; 2.Dongtai Forest Farm of Jiangsu Province, Dongtai, Jiangsu 224200, China
关键词:
蚯蚓 杨树凋落物 土壤理化性质 土壤微生物量
Keywords:
earthworm poplar litter soil physical and chemical properties soil microbial biomass
分类号:
S154.1
DOI:
10.13323/j.cnki.j.fafu(nat.sci.).2021.02.017
文献标志码:
A
摘要:
以江苏省东台市20 a林龄的杨树人工林为研究对象,共设置6个处理:空白对照(CK),杨树凋落物表施(杨树叶平铺于样方表面,T1),杨树凋落物混施(凋落物与土壤混合均匀,T2),接种蚯蚓(T3),杨树凋落物表施+接种蚯蚓(T4),杨树凋落物混施+接种蚯蚓(T5).对土壤微生物生物量碳(SMBC)和土壤微生物生物量氮(SMBN)含量的动态变化进行1 a的监测,同时测定土壤基本理化指标,分析土壤微生物生物量与土壤理化指标之间的相关性.结果表明:接种蚯蚓与添加凋落物可以降低土壤pH值和容重,提高溶解性总氮(DTN)和溶解性有机碳(DOC)含量,处理效果为T5>T4>T3>T2>T1; 接种蚯蚓可以提高SMBC和SMBN含量,其中T5处理的提升效果最为显著,SMBC和SMBN增幅分别达到36.58%和24.98%,T4处理的SMBC/SMBN值增幅最大,达10.35%; 此外,土壤DTN和DOC含量对本区域SMBC和SMBN含量起促进作用.
Abstract:
To elucidate the function of earthworm and leaf litter on the nutrient cycling of soil ecosystem in poplar plantation, 6 treatments, including control(CK), poplar leaf litter surface application(T1), mixed application of poplar leaf litter and soil(T2), earthworm inoculation(T3), poplar leaf litter surface application+earthworm inoculation(T4)and poplar leaf litter mixed application+earthworm inoculation(T5)were set up in a 20-year-old poplar plantation in Dongtai Forest Center of Jiangsu Province. Soil microbial biomass carbon(SMBC)and soil microbial biomass nitrogen(SMBN)were monitored for a year, and soil physical and chemical indexes were determined, and the relationship between soil physiochemical properties and microbial biomass were further analyzed. The results showed that earthworm inoculation and litter addition lowered soil pH and bulk density, and increased the contents of dissolved total nitrogen(DTN)and dissolved organic carbon(DOC). The efficacy of 5 treatments were ranked in the order of T5>T4>T3>T2>T1. Earthworm inoculation overall enhanced SMBC and SMBN levels. Among all the treatments, T5 resulted in the most significant improvements at SMBC and SMBN contents by 36.58% and 24.98% rises, respectively, while T4 showed the highest increase in SMBC/SMBN ratio at 10.35%. Besides, DTN and DOC contributed to higher SMBC and SMBN levels in this region.

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备注/Memo

备注/Memo:
收稿日期:2020-06-23 修回日期:2020-08-31
基金项目:国家重点研发计划(2016YFD0600204); 江苏省高等学校自然科学研究重大项目(18KJA220001); 江苏高校优势学科建设工程资助项目(PAPD).
作者简介:徐晓(1994-),女.研究方向:土壤生态.Email:1101634790@qq.com.通信作者王国兵(1979-),男,副教授,博士.研究方向:森林和土壤生态.Email:wangguobing81@aliyun.com.
更新日期/Last Update: 2021-02-15