干旱区生态环境知识资源中心(Arid): 贵州喀斯特山区花椒林小生境的土壤质量特征

Arid

	贵州喀斯特山区花椒林小生境的土壤质量特征
其他题名	Soil Quality Characteristics of Different Micro-Habitat in Zanthoxylum bungeamun Forest of Guizhou Karst Areas
	喻阳华 1; 秦仕忆 2; 钟欣平 2
来源期刊	西南农业学报
ISSN	1001-4829
出版年	2018
卷号	31 期号:11 页码:2340-2347
中文摘要	【目的】探明不同小生境土壤性质的空间变化特征,弄清其土壤养分的变化规律,为花椒种植的合理布局提供科学依据,以促进喀斯特地区石漠化的生态恢复。【方法】选择贵州喀斯特山区花椒林内石槽、土面、石沟、石缝和石坑5种小生境为研究对象,采用单因素方差分析及主成分分析等方法研究花椒林下不同小生境0~ 20 cm土层不同矿质元素对土壤质量的影响。【结果】石槽、石缝、石沟小生境的土壤pH显著高于石坑和土面;土面、石槽小生境土壤的碳、氮、磷元素含量较高,石坑、石沟则较低;中量、微量矿质元素在不同小生境土壤间变化较小;土壤有机碳、速效氮、速效磷与其他矿质元素间的相关性显著,存在相互制约的关系;土壤质量优劣依次为土面(0.73)、石槽(0.49)、石缝(- 0.01)、石坑(- 0.46)和石沟(- 0.75)。【结论】矿质元素对土壤质量的影响均较大,将中量、微量矿质元素纳入土壤质量评价指标体系具有合理性;土面、石槽、石缝土壤可加以改造利用,石洞、石沟土壤以自然恢复为主。
英文摘要	【Objective】The pusent paper aims to explore the spatial variation characters of soil property in micro-habitat,and the variation regulation of soil nutrients,thus to provide scientific basis for rational layout of Z. bungeamun plantation,so as to promote the ecological recovery of rock desertification in karst area.【Method】Taking five kinds of micro habitats,including stone trough,earth surface,stone groove,stone seam and stone pit,as the research objects in Guizhou karst mountainous area,ANOVA and principal component analysis were conducted to explore the influence of 0 - 20 cm soil layer in different micro-habitats of Z. bungeamun forest on soil quality.【Result】Soil pH in stone trough,stone seam and stone groove were significantly higher than stone pit and earth surface; Earth surface and stone trough were of higher contents of carbon,nitrogen and phosphorus,while that in stone pit and stone groove were lower; medium and trace mineral elements varied little among various micro-habitats; soil organic carbon,available nitrogen and available phosphorus and significantly correlated with other mineral elements,with mutual restraints; Soil quality followed the sequence of earth surface(0.73) > stone trough (0.49) > stone seam(- 0.01) > stone pit(- 0.46) > stone groove(- 0.75) .【Conclusion】Mineral elements affect soil quality greatly,so it was rational to absorb medium and trace mineral elements into soil quality assessment indicator system; Earth surface,stone trough and stone seam could be transformed and utilized,while stone pit and stone groove should be in natural recovery.
中文关键词	喀斯特小生境 ; 花椒林 ; 土壤质量 ; 矿质元素 ; 主成分分析
英文关键词	Karst micro-habitat Zanthoxylum bungeamun forest Soil quality Mineral elements Principal component analysis (PCA)
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:6387132
来源机构	贵州师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238517
作者单位	1.贵州师范大学喀斯特研究院, 国家喀斯特石漠化防治工程技术研究中心, 贵阳, 贵州 550001, 中国; 2.贵州师范大学地理与环境科学学院, 贵阳, 贵州 550025, 中国
推荐引用方式 GB/T 7714	喻阳华,秦仕忆,钟欣平. 贵州喀斯特山区花椒林小生境的土壤质量特征[J]. 贵州师范大学,2018,31(11):2340-2347.
APA	喻阳华,秦仕忆,&钟欣平.(2018).贵州喀斯特山区花椒林小生境的土壤质量特征.西南农业学报,31(11),2340-2347.
MLA	喻阳华,et al."贵州喀斯特山区花椒林小生境的土壤质量特征".西南农业学报 31.11(2018):2340-2347.