中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 江河源区不同建植期人工草地土壤养分及微生物量磷和磷酸酶活性研究 草业学报 2007,16 (6) 1-6
Position: Home > Articles > Study on the changes of soil nutrients,microbial biomass P and neutral phosphatase activity of artificial grassland sown in different years in the headwaters of the Yangtze and Yellow Rivers Acta Prataculturae Sinica 2007,16 (6) 1-6

江河源区不同建植期人工草地土壤养分及微生物量磷和磷酸酶活性研究

作  者：
冯瑞章;周万海;龙瑞军;马玉寿;齐文娟
单  位：
甘肃农业大学草业学院;中国科学院西北高原生物研究所;青海省畜牧兽医科学院
关键词：
江河源区;人工草地;土壤养分;微生物量磷;中性磷酸酶
摘  要：
研究了"黑土滩"退化草地上建植的2,4和6龄垂穗披碱草人工草地土壤养分、微生物量磷、中性磷酸酶活性变化以及它们之间的相互关系。结果表明,随建植期的增加,土壤pH值呈现先降低后升高的趋势,人工4龄草地土壤pH值最低,人工6龄草地最高。从时间尺度看,人工2龄草地土壤养分含量、土壤微生物量磷含量和土壤中性磷酸酶活性较"黑土滩"退化草地明显升高,随着建植期的增加,人工4龄草地各测定指标明显下降,而人工6龄草地各测定指标再次升高。4种草地土壤养分含量、微生物量磷含量和中性磷酸酶活性在土壤剖面中均呈现随土壤深度的增加而递减的趋势。相关分析结果表明,土壤微生物量磷与有机碳、全氮、速效氮和速效钾含量之间呈极显著正相关关系,与全磷含量间呈显著正相关关系;土壤中性磷酸酶活性与大多数土壤养分呈显著或极显著正相关关系,其中与土壤有机碳的相关系数最大;土壤微生物量磷与中性磷酸酶活性呈极显著正相关关系。
译  名：
Study on the changes of soil nutrients,microbial biomass P and neutral phosphatase activity of artificial grassland sown in different years in the headwaters of the Yangtze and Yellow Rivers
作  者：
FENG Rui-zhang1,5,ZHOU Wan-hai3,LONG Rui-jun1,2,MA Yu-shou4,QI Wen-juan3 (1.Northwest Plateau Institute of Biology,Chinese Academy of Sciences,Xi'ning 810008,China;2.College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,China;3.College of Grassland Science,Gansu Agricultural University,Lanzhou 730070,China;4.Qinghai Academy of Animal and Veterinary Sciences,Xi'ning 810003,China;5.Graduate School of Chinese Academy of Sciences,Beijing 100039,China)
关键词：
the headwaters of the Yangtze and Yellow Rivers;artificial grassland;soil nutrients;soil microbial biomass P;neutral phosphatase activity
摘  要：
The dynamic changes in soil nutrients,soil microbial biomass P,neutral phosphatase activity and the relationships between them and Elymus nutans artificial grassland constructed on "heitutan land" degenerated pasture sown in different years were studied.Compared to the "black soil type" degraded pasture,soil had lower pH values in 2 and 4 year old artificial grasslands,and the highest pH value was in 6 year old artificial grassland.The soil nutrients,soil microbial biomass P and neutral phosphatase activity were significantly higher in 2 year old artificial grassland than in the "black soil type" degenerated pasture.However all of them decreased in 4 year old artificial grassland but increased again in 6 year old artificial grassland.The experimental results showed that the profiles of the soil nutrients,soil microbial biomass P and neutral phosphatase activity were taken on the distribution of decreasing.Correlation analysis showed that soil microbial biomass P was significantly positively related to the soil organic matter content,total N,available N,available K(P<0.01),and total P(P<0.05).Neutral phosphatase activity was also significantly positively correlated to the soil nutrients and soil microbial biomass P.

相似文章

导出引用
计量
文章访问数: 19
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46