[1]王树起,韩晓增,乔云发,等.寒地黑土大豆轮作与连作不同年限土壤酶活性及相关肥力因子的变化[J].大豆科学,2009,28(04):611-615.[doi:10.11861/j.issn.1000-9841.2009.04.0611]
　WANG Shu-qi,HAN Xiao-zeng,QIAO Yun-fa,et al.Variation of Soil Enzymes Activity and Relevant Nutrients at Different Years of Soybean (Glycine max L.)Rotation，Alternate and Continuous Cropping[J].Soybean Science,2009,28(04):611-615.[doi:10.11861/j.issn.1000-9841.2009.04.0611]
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寒地黑土大豆轮作与连作不同年限土壤酶活性及相关肥力因子的变化

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第28卷 期数: 2009年04期 页码: 611-615 栏目: 出版日期: 2009-08-25
Title:
Variation of Soil Enzymes Activity and Relevant Nutrients at Different Years of Soybean (Glycine max L.)Rotation，Alternate and Continuous Cropping
文章编号:
1000-9841(2009)04-0611-05
作者:
王树起1; 2; 韩晓增1; 乔云发1; 王守宇1; 李晓慧1; 许艳丽1
1中国科学院东北地理与农业生态研究所，黑龙江 哈尔滨 150081；
2中国科学院沈阳应用生态研究所，辽宁 沈阳 110016
Author(s):
WANG Shu-qi1; 2; HAN Xiao-zeng1; QIAO Yun-fa1; WANG Shou-yu1; LI Xiao-hui1; XU Yan-li1
1.Northeast Institute of Geography and Agriculture Ecology，CAS，Harbin 150081，Heilongjiang；
2.Institute of Applied Ecology，CAS，Shenyang 110016，Liaoning，China)
关键词:
土壤酶; 土壤养分; 轮作; 连作; 大豆; 黑土
Keywords:
Soil enzymes activity; Nutrients; Alternate cropping; Continuous cropping; Soybean; Black soil
分类号:
s151.94
DOI:
10.11861/j.issn.1000-9841.2009.04.0611
文献标志码:
A
摘要:
以中国科学院海伦农业生态实验站长期定位试验为平台，研究了寒地黑土大豆轮作与连作不同年限土壤酶活性与相关肥力因子的变化及其相关性和土壤C、N和C/N的变化。结果表明：大豆轮作与连作不同年限，土壤酶活性、有效养分（碱解氮、速效磷和速效钾）含量和土壤C、N及C/N均有较大变化，与正茬相比，迎茬、连作土壤酶活性均降低，其中连作二年，脲酶、转化酶和磷酸酶活性降低幅度最大，分别比正茬降低了29.6%、51.0%和41.9%；土壤C、N和碱解氮、速效磷及速效钾也是大豆连作二年降低最多，分别比正茬降低了18.0%、35.3%和40.4%、53.6%、41.3%，随着连作年限的延长，土壤C、N及有效养分含量均有所恢复，但大豆长期连作，上述各种成分又呈下降趋势。土壤酶活性与土壤C、碱解氮、速效磷、速效钾之间均存在一定的相关性，其中，脲酶、转化酶、磷酸酶与各种养分间均呈极显著正相关。因此大豆连作使土壤酶活性降低，有效养分含量下降，是造成大豆连作障碍而导致大豆减产的重要原因之一。
Abstract:
In this paper，soil samples were collected from soybean rotation and continuous cropping fields for different years in the Hailun Agricultural Ecology Station of Chinese Academy of Sciences to study the variation of soil enzymes activity，nutrients，soil C and N contents and their relationship.The results showed that there was a great variation of soil enzymes activity，available nutrients and soil C and N contents，compared with soybean rotation，soil enzymes activity all decreased in alternate and continuous cropping，urease，invertase and phosphatase activity in continuous cropping for two years were decreased most than others，decreased by 29.6%，51.0% and 41.9%，respectively.Moreover，soil C，N and available N，P and K decreased most in continuous cropping for 2 years than others，decreased by 18.0%，35.3% and 40.4%，53.6%，41.3%，respectively.Soil C，N and different available nutrients contents reclaimed in an extent with continuous cropping years，however，long-term continuous cropping of soybean，above components showed a declined trend.There was a significantly positive correlation between urease，invertase，phosphatase and soil C，N，available N，P and K.Therefore，soil enzymes activity and available nutrients contents decreased in continuous cropping soils of soybean were important causes resulting in product decreasing of soybean in continuous cropping.

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备注/Memo

基金项目：中国科学院知识创新工程重要方向资助项目（KSCX1-YW-09-09,KSCX2-YW-N-002,KZCX2-YW-407）；国家科技支撑计划资助项目 (2006BAD21B01) 。

作者简介：王树起（1968-），男，副研究员，博士后，研究方向为植物营养和土壤生态方面。E-mail: wsq-200131@sohu.com。
通讯作者：韩晓增，研究员，博士生导师。E-mail:hanxz@cern.ac.cn。

更新日期/Last Update: 2014-09-21