豫东黄河故道湿地土壤养分与酶活性特征  

Characteristics of Soil Nutrient and Enzyme Activities of the Wetland in Old Yellow River of Eastern Henan

作　　者：朱新玉[1] 胡云川[2] 

机构地区：[1]商丘师范学院环境与规划学院,河南商丘476000 [2]商丘师范学院生命科学学院,河南商丘476000

出　　处：《湖北农业科学》2014年第10期2268-2272,共5页Hubei Agricultural Sciences

基　　金：教育部人文社会科学研究青年基金项目(13YJCZH283);河南省科技厅科技攻关项目(132102310357);商丘师范学院青年科研基金项目(2011QN21)

摘　　要：以豫东黄河故道湿地为研究对象,通过野外采样和室内分析相结合的方法,研究该区不同土地利用方式(盐碱滩地、湿草地、沼泽湿地、林地湿地)对土壤有机质、土壤养分、土壤微生物生物量和土壤酶活性(脲酶、过氧化氢酶、蔗糖酶、碱性磷酸酶)的影响。结果表明,不同土地利用方式对土壤有机质、土壤养分和土壤酶活性的影响显著或极显著,土壤有机质、土壤酶活性和大部分土壤养分指标含量均为林地湿地最高,湿草地和沼泽湿地居中,盐碱滩地最低。土壤酶活性与土壤有机质和土壤微生物生物量碳、氮间呈显著或极显著正相关,不同土壤酶活性间也存在显著或极显著相关。土壤酶活性高低与土壤养分变化顺序基本一致,说明土壤酶活性可以反映土壤肥力的高低,可以用土壤酶活性来指示黄河故道湿地土壤肥力的变化。Using field sampling and indoor analysis, the effects of different wetland use patterns （saline-alkali wasteland, humid grasslands, marsh wetland, forest wetland） on soil nutrient （soil organic matter, nitrogen, phosphorus, potassium, soil microbial mass） and soil enzyme activities （soil urease, soil catalase, soil invertase, soil alkaline phosphatase） in old Yellow River wetland of eastern Henan were studied. The results showed that soil nutrient and soil enzyme activities had significant difference among different wetland use patterns. Soil nutrient and soil enzyme activities were the highest in the forest wetland, humid grassland and marsh wetland took the second place and saline-alkali wasteland was the lowest. Soil enzyme activities were significantly correlated with soil organic matter, soil microbial mass and soil nutrient, and between soil enzyme activities themselves. Soil enzyme activities varied in the same order as that of soil nutrient. It is indicated that soil enzyme activities could reflect the level of wetland soil fertility, and could be used as an index indicating the soil fertility quality of wetland in old Yellow River.

关 键 词：黄河故道湿地 土地利用方式 土壤养分 酶活性 

分 类 号：S154.2[农业科学—土壤学] S158.3[农业科学—农业基础科学]