干旱区生态环境知识资源中心(Arid): 塔里木盆地南缘绿洲土壤酶活性与理化因子相关性

Arid

	塔里木盆地南缘绿洲土壤酶活性与理化因子相关性
其他题名	Soil Enzyme Activities and Their Correlation with Physicochemical Factors in the Oasis of Southern Margin of Tarim Basin
	解丽娜; 贡璐; 朱美玲; 刘曾媛
来源期刊	环境科学研究
ISSN	1001-6929
出版年	2014
卷号	27 期号:11 页码:1306-1313
中文摘要	基于塔里木盆地南缘于田绿洲土壤酶活性与水盐、养分等理化因子数据,利用冗余分析技术(RDA)全面分析了土壤酶活性与理化因子间的关系. 结果显示: ①于田绿洲土壤酶活性总体水平较低,过氧化氢酶(以KMnO_4计) 、转化酶(以Na_2S_2O_3计) 、脲酶(以NH_3-N 计)和碱性磷酸酶(以C_6H_6O计)活性平均值分别为9. 37、2. 04、0. 27和0.18 mg/g; 研究区土壤水分含量(15. 46%,以w计)较少且盐渍化严重〔w(全盐)平均值为19. 39 g/kg〕. ②w(有机质) 、土壤水分含量、地下水埋深和w(有效磷)是影响土壤酶活性的主要因素,w(有机质) 、土壤水分含量、w(有效磷)与土壤酶活性呈正相关,地下水埋深与土壤酶活性呈负相关. ③各理化因子对土壤酶活性影响的重要性排序为w(有机质) 、土壤水分含量、地下水埋深、w(有效磷) 、pH、w(全盐) 、电导率、w(速效钾). 综合分析表明,研究区强盐渍化的土壤性质对土壤酶活性的抑制并不显著,土壤碳、磷等养分与水分状况才是限制土壤酶活性的关键因素.
英文摘要	To investigate the relationships between soil enzyme activities and physicochemical factors, soil enzyme activities and physic chemical factors were studied in Yutian oasis of southern marginal zones of Tarim Basin by traditional statistics and redundancy analysis (RDA). The results showed that soil enzyme activities in the area were low, with the average of enzyme properties as follows: catalase (calculated by KMnO_4), invertase (calculated by Na_2 S_2O_3), urease (calculated by NH_3-N), alkaline phosphatase (calculated by C_6H_6O) activity of 9. 37, 2. 04, 0. 27 and 0. 18 mg/g, respectively. According to the RDA results, the soil organic matter content, water content, groundwater depth and available phosphorus were the main factors limiting soil enzyme activities. Soil organic matter, water and available phosphorus were significantly positively correlated with enzyme activity, while groundwater depth was negatively correlated with enzyme activity. According to the ranking and significant test, the importance rank followed the order as follows: soil organic matter content > soil water content > groundwater depth > available phosphorus > pH > conductivity > available potassium. Strong soil salinization was not entirely limited to soil enzyme activities; organic matter, water and nutrients were found to be the key factors limiting enzyme activities.
中文关键词	土壤酶活性 ; 理化因子 ; 冗余分析 ; 塔里木盆地南缘
英文关键词	soil enzyme activities physicochemical factors redundancy analysis southern margin of Tarim Basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5285782
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231364
作者单位	新疆大学资源与环境科学学院, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	解丽娜,贡璐,朱美玲,等. 塔里木盆地南缘绿洲土壤酶活性与理化因子相关性[J]. 新疆大学,2014,27(11):1306-1313.
APA	解丽娜,贡璐,朱美玲,&刘曾媛.(2014).塔里木盆地南缘绿洲土壤酶活性与理化因子相关性.环境科学研究,27(11),1306-1313.
MLA	解丽娜,et al."塔里木盆地南缘绿洲土壤酶活性与理化因子相关性".环境科学研究 27.11(2014):1306-1313.