干旱区研究

干旱区研究 ›› 2012, Vol. 29 ›› Issue (4): 579-585.

• 水土资源 • 上一篇    下一篇

艾比湖流域5种土壤类型的酶活性和理化性质

刘晓星1，2, 吕光辉1，2, 杨晓东3, 张海峰1，2   

    1. 新疆绿洲生态重点实验室，新疆 乌鲁木齐　830046;
    2. 新疆大学资源与环境科学学院，新疆 乌鲁木齐　830046；
    3. 华东师范大学环境科学系，上海　200241
  • 收稿日期:2011-10-19 修回日期:2011-10-30 出版日期:2012-07-15 发布日期:2012-09-11
  • 通讯作者: 吕光辉.Email：ler@xju.edu.cn
  • 作者简介:刘晓星（1985-），女，新疆伊犁人，在读研究生，主要从事干旱区生态学研究.Email：lxx8031707@163.com
  • 基金资助:

    国家自然科学基金项目（01982825）资助

Enzyme Activities and Physical and Chemical Properties of Five Different Soils in the Ebinur Lake Basin

 LIU  Xiao-Xing1，2, 吕Guang-Hui1，2 , YANG  Xiao-Dong3 , ZHANG  Hai-Feng1，2   

  1. 1.  Xinjiang Key Laboratory of Oasis Ecology, Urumqi 830046, China;
    2.   College of Resources and Environmental Sciences, Xinjiang University, Urumqi 830046, China;
    3.   Department of Environmental Science, East China University, Shanghai 200241, China
  • Received:2011-10-19 Revised:2011-10-30 Online:2012-07-15 Published:2012-09-11

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被引次数

32

摘要： 以艾比湖流域为研究区，研究了荒漠5种类型土壤（黑钙土、栗钙土、棕漠土、灰漠土和灰钙土）的4种酶（过氧化氢酶、磷酸酶、脲酶和蔗糖酶）活性和理化性质（0~15、15~30 cm和30~50 cm土层），并分析土壤酶活性与理化性质间的相关关系。结果表明：① 黑钙土和栗钙土的土壤理化性质优于其他土壤类型；各类型土壤理化性质的垂直分布表现出一定的规律性，土壤含水率和总盐表现为递减，土壤pH、有机质、全氮和速效磷则表现为递增。② 不同土壤类型的土壤酶活性间存在分异，除黑钙土外，其他类型土壤的酶活性在土壤剖面上递减规律不明显。③ 土壤酶活性间存在不同程度的正相关关系。④ 干旱区土壤酶活性与土壤有机质和全氮呈极显著正相关，与土壤含水率呈显著或极显著正相关，个别土壤酶活性与土壤pH呈显著负相关，与总盐和速效磷相关性不显著。⑤ 不同土壤类型酶活性和理化性质间的相关性表现不一，影响不同土壤类型酶活性的主要理化因子也不同。

关键词: 荒漠, 土壤类型, 酶活性, 理化性质, 艾比湖流域

Abstract: In this paper, a case study was carried out in the Ebinur Lake Basin to reveal the correlations between enzyme activities and physical and chemical properties of different soils in a desert in arid area. The results indicated that the physical and chemical properties were different from different soils, the soil properties of chernozem and chestnut soil were better than that of other soils types, and there was a regularity in vertical distribution of physical and chemical properties. Enzyme activities were different from different soils, there was no distinct descending of enzyme activities along the soil profiles except along chernozem profile. There was also a significant positive correlation among soil enzyme activities, which indicated that there were the mutual promotion and interactional relationship among soil enzyme activities. There was a very significant positive correlation between soil enzyme activities and soil organic matter content and total N content in soil, and a significant positive correlation or very significant positive correlation between soil enzyme activities and soil moisture content. There was a very significant negative correlation between some soil enzyme activities and soil pH value. In contrast, there were no significant correlations between soil enzyme activities and total salt content and available phosphorus content. The correlations between soil enzyme activities and soil physicalchemical properties were different from different soils, which indicated that the main soil physical and chemical factors affecting soil enzyme activities were different from different soils.

Key words: desert, soil type, enzyme activity, soil physical-chemical property, Ebinur Lake Basin