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封育对中天山三种类型草地土壤酶活性的影响/Effects of Fencing Enclosure on Soil Enzyme Activities of Three Kinds in Pasture of Middle Tianshan Mountain[J]
Authors
CAO Ye-fei
HU Yu-kun
+14 more
JIA Hong-Tao
JIANG Ping-an
LI Yun
SU Jian-hong
ZHU Xin-ping
中国科学院新疆生态与地理研究所,乌鲁木齐,830011
新疆农业大学草业与环境科学学院,乌鲁木齐,830052
曹叶飞
朱新萍
李赟
胡玉昆
苏建红
蒋平安
贾宏涛
Publication date
1 January 2012
Publisher
Abstract
以新疆中天山围封25 a的3种草地土壤为研究对象,以土壤酶活性分析结果为依据,采用常规统计方法对围栏内外土壤酶活性及其与土壤环境因子之间的关系进行了研究.结果表明,3种草地土壤中过氧化氢酶和碱性磷酸酶活性均较低,25 a围栏封育措施可提高围栏内的土壤表层酶活性,但围栏内外酶活性差异不显著;围栏内外酶活性均随土壤深度增加而逐渐降低;土壤酶活性与土壤微生物、土壤含水量、有机质、速效养分含量等指标关系密切,相关性显著(P<0.05),亚高山草原化草甸酶活性与速效钾的相关性较低;活性与土壤微生物数量之间都有较高的正相关性,尤其是蔗糖酶和过氧化氢酶均与微生物数量相关性显著(P<0.05)
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Last time updated on 29/11/2016