文章摘要
陈晓旋, 陈淑云, 曾从盛, 王维奇.螃蟹对闽江河口互花米草湿地土壤活性养分变化的影响[J].水土保持学报,2018,32(3):242~248,257
螃蟹对闽江河口互花米草湿地土壤活性养分变化的影响
Effects of Crabs on the Variation of Soil Available Nutrients in Spartina Alterniflora Wetland in Minjiang River Estuary
投稿时间:2018-01-06  
DOI:10.13870/j.cnki.stbcxb.2018.03.037
中文关键词: 土壤活性养分  螃蟹  土壤  闽江河口湿地
英文关键词: soil available nutrients  crab  soil  Minjiang River estuarine wetland
基金项目:国家自然科学基金项目(41571287);福建省高校杰出青年科研人才培育计划项目(2017)
作者单位E-mail
陈晓旋1, 陈淑云1, 曾从盛1,2, 王维奇1,2 1. 福建师范大学地理研究所, 福州 350007

2. 福建师范大学
, 湿润亚热带生态地理过程教育部重点实验室, 福州 350007 
wangweiqi@fjnu.edu.cn 
摘要点击次数: 596
全文下载次数: 630
中文摘要:
      为阐明螃蟹活动对湿地土壤活性养分含量变化的影响,对闽江河口湿地不同潮滩螃蟹干扰下的土壤DOC、MBC、NH4+-N、NO3--N、Fe及其价态含量特征进行测定和分析。结果表明:有螃蟹组土壤DOC和MBC含量分别为95.98,11.13 mg/kg,对照组含量分别为106.99,7.54 mg/kg,螃蟹组土壤DOC含量略低于对照组(P>0.05),螃蟹组土壤MBC含量高于对照组(P<0.05);两者含量最高值和最低值分别出现在夏季和冬季,且夏季显著高于其他季节(P<0.05)。螃蟹组土壤NH4+-N和土壤NO3--N含量分别为22.45,1.08 mg/kg,对照组含量分别为23.65,1.44 mg/kg,螃蟹组土壤NH4+-N含量低于对照组(P<0.05),螃蟹组土壤NO3--N含量低于对照组(P<0.05);不同季节,土壤NH4+-N和NO3--N含量存在显著差异(P<0.01)。螃蟹组土壤总铁含量略高于对照组(P>0.05);螃蟹组土壤Fe2+含量显著高于对照组(P<0.05);螃蟹组和对照组土壤Fe3+含量差异不明显(P>0.05)。不同季节,土壤总Fe、Fe2+和Fe3+含量存在显著差异(P<0.01)。
英文摘要:
      In order to clarify the effects of crab activities on the changes of available nutrients in wetland soils, soil DOC, MBC, NH4+-N, NO3--N, Fe and their valence contents under the interference of crabs from different tidal flats in Minjiang River estuarine wetlands were measured. The results showed that the average contents of DOC and MBC in soil were 95.98 and 11.13 mg/kg, respectively in the crab group and 106.99 and 7.54 mg/kg in the control group, respectively (P<0.05). The content of MBC in soil of crab group was higher than that of control group (P<0.05). The highest and lowest values of the two contents appeared in summer and winter respectively, and were significantly higher in summer than in other seasons (P <0.05). The average values of soil NH4+-N and soil NO3--N in the crab group were 22.45 and 1.08 mg/kg, respectively, and those in the control group were 23.65 and 1.44 mg/kg. The content of NH4+-N in soil of crab group was lower than that of control group (P<0.05), while the content of NO3--N in soil of crab group was lower than that of control group (P<0.05). The contents of NH4+-N and NO3--N in soil were significantly different in different seasons (P<0.01). The soil total iron content in crab group was slightly higher than that in control group (P>0.05). The content of Fe2+ in soil of crab group was significantly higher than that in control group (P<0.05). There was no significant difference in soil Fe3+ content between crab group and control group (P>0.05). In different seasons, soil total Fe, Fe2+ and Fe3+ contents were significantly different (P<0.01).
查看全文   查看/发表评论  下载PDF阅读器
关闭