干旱区生态环境知识资源中心(Arid): 岩溶区典型根系地下生境类型中土壤酶活性研究

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	岩溶区典型根系地下生境类型中土壤酶活性研究
其他题名	SOIL ENZYME ACTIVITIES IN THE TYPE OF ROOT UNDERGROUND HABITAT TYPICAL OF KARST AREAS
	符裕红; 黄宗胜; 喻理飞
来源期刊	土壤学报
ISSN	0564-3929
出版年	2012
卷号	49 期号:6 页码:1202-1209
中文摘要	选择了岩溶区三种不同的典型根系地下生境类型土壤为研究对象(类型Ⅰ-白云岩低倾产状多层空间类型、类型Ⅱ-白云岩中倾产状多层空间类型及类型Ⅲ-白云岩高倾产状多层空间类型),分析了不同类型和不同层次的土壤酶活性,以及土壤酶与土壤养分的相关性。结果表明:1)不同植物根系地下生境类型和不同空间土壤层次的土壤酶活性差异极显著(p< 0.01);2)类型Ⅰ有利于土壤的碳素循环,类型Ⅱ有利于土壤含氮化合物的转化,类型Ⅲ有利于土壤有机物质的氧化;且三种类型的土壤酶活性均呈现出随土壤深度的增加而逐渐降低的趋势;3)土壤酶活性与土壤养分含量关系显著,可以作为评价土壤质量/肥力的指标。可见,不同根系地下生境土壤酶活性差异,对岩溶石漠化区的土壤质量评价、植被恢复技术研究和生态修复治理均有积极的作用。
英文摘要	Soil samples were collected from three different types of underground root habitat typical of Karst area (Type Ⅰ-dolomite of low oblique occurrence with multilayer space, Type Ⅱ-dolomite of middle oblique with multilayer space and Type Ⅲ-dolomite of high oblique occurrence with multilayer space types), for analysis of enzyme activity in the soils as affected by type of underground root habitat and level of soil layer, and correlation between soil enzyme and soil nutrients content. Results show that: 1) soil enzyme activity varied sharply between different habitat types and between different spatial soil layers(p<0.01). 2) Type Ⅰ is conductive to cycling of soil carbon, Type Ⅱ to transformation of N-containing compounds and Type Ⅲ to oxidation of soil organic matter, and moreover, soil enzyme activity in all the three types decreased with soil depth. 3) soil enzyme activity was significantly related to soil nutrients content. So their correlation coefficient can be used as an indicator for evaluation of soil quality/fertility. Obviously, the finding of differences between the types of root underground habitat in soil enzyme activity may be very useful to evaluation of soil quality, study on technology for vegetation restoration and ecological remediation and management in the Karst rocky desertification region.
中文关键词	土壤 ; 酶活性 ; 根系地下生境类型 ; 岩溶石漠化区
英文关键词	Soil Enzyme activity Type of root underground habitat Karst rocky desertification area
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:4691666
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228684
作者单位	贵州大学林学院, 贵阳, 贵州 550025, 中国
推荐引用方式 GB/T 7714	符裕红,黄宗胜,喻理飞. 岩溶区典型根系地下生境类型中土壤酶活性研究[J],2012,49(6):1202-1209.
APA	符裕红,黄宗胜,&喻理飞.(2012).岩溶区典型根系地下生境类型中土壤酶活性研究.土壤学报,49(6),1202-1209.
MLA	符裕红,et al."岩溶区典型根系地下生境类型中土壤酶活性研究".土壤学报 49.6(2012):1202-1209.