黄河中游湿地土壤养分与酶活性特征及相关性研究
刘云鹏 ; 申卫博 ; 张社奇 ; 解迎革 ; 郑纪勇
刊名草 地 学 报
2013
卷号21期号:03页码:474-06
关键词黄河中游湿地 :The middle Yellow River wetland 土地利用方式 Land use patterns 土壤养分 Soil nutrition 酶活性 Enzyme activities
其他题名Characteristics and Correlation Analysis of Soil Nutrient and Enzyme
中文摘要在陕西合阳黄河湿地,通过野外采样和室内分析相结合的方法,研究该湿地退化过程中不同土地利用方式(湿地、天然草地、开荒耕地和盐碱地)对土壤养分(有机质和N,P,K)和酶活性(脲酶、蔗糖酶、过氧化氢酶、碱性磷酸酶)的影响及其变化规律。结果表明:土地利用方式对土壤养分和酶活性的影响极显著(P<0.01),其排列顺序为:天然草地>开荒耕地>湿地>盐碱地。开荒耕地的土壤有机质和土壤养分介于天然草地和湿地之间,盐碱地土壤有机质仅为天然草地和湿地的3.4%和6.9%,土地资源的过渡开发利用会严重影响土壤肥力导致土壤退化。酶活性与土壤有机质及各养分成显著和极显著相关,且不同土壤酶活性间也存在显著相关性。不同土地利用方式下,脲酶、蔗糖酶、过氧化氢酶和碱性磷酸酶差异极显著(P<0.01),其活性高低与土壤养分变化顺序基本一致。土壤酶活性反映出土壤肥力水平的高低,可以作为评价黄河湿地土壤肥力的指标。
英文摘要Abstract:The effects of different land use patterns(wetland,natural meadow,cultivated land,saline-alkali
 land)on soil nutrient(organic matter,N,P,K)and enzyme activities(urease,invertase,catalase,
alkaline phosphatase)in wetland degradation were studied for the Yellow River wetland of Shaanxi using
field sampling and indoor analysis.Results indicated that soil nutrient and soil enzyme activities had significant
 differences among different land use patterns(P<0.01).The order was natural meadow>cultivated
land>wetland>saline-alkali land.Soil organic matter and soil nutrients of cultivated land fell between that
of natural meadow and wetland,but saline-alkali land was far below that of natural meadow and wetland
by 3.4%and 6.9%,indicating that over-exploitation of land resources will seriously affect soil fertility
and lead to soil degradation.Enzyme activities were significantly correlated with soil organic matter and
soil nutrient,and between soil enzyme activities themselves.The activities of urease,invertase,catalase,
alkaline phosphatase were significantly different under diverse land use patterns(P<0.01),varied in the
same order as that of soil nutrient.Soil enzyme activities could indicate the level of soil fertility,and could
be used as an index for soil fertility evaluation of wetlands.
语种中文
公开日期2014-10-21
内容类型期刊论文
源URL[http://ir.iswc.ac.cn/handle/361005/5588]  
专题水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式
GB/T 7714
刘云鹏,申卫博,张社奇,等. 黄河中游湿地土壤养分与酶活性特征及相关性研究[J]. 草 地 学 报,2013,21(03):474-06.
APA 刘云鹏,申卫博,张社奇,解迎革,&郑纪勇.(2013).黄河中游湿地土壤养分与酶活性特征及相关性研究.草 地 学 报,21(03),474-06.
MLA 刘云鹏,et al."黄河中游湿地土壤养分与酶活性特征及相关性研究".草 地 学 报 21.03(2013):474-06.
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