干旱区生态环境知识资源中心(Arid): 平果喀斯特山地不同植物群落的土壤质量评价

Arid

	平果喀斯特山地不同植物群落的土壤质量评价
其他题名	Assessment of soil quality of different plant communities in the Karst mountains of Pingguo County,Guangxi
	欧芷阳; 申文辉; 庞世龙; 彭玉华; 谭一波; 何琴飞
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2015
卷号	34 期号:10 页码:2771-2777
中文摘要	了解喀斯特山地的土壤环境质量,对其植被恢复和石漠化治理有着重要意义。基于群落土壤肥力分析,采用典范对应分析(CCA)和因子分析相结合的方法,定量评价了广西平果喀斯特山地灌丛、灌木、仪花和蚬木群落的土壤质量。结果表明: 土壤物理结构随植被恢复得到改善,土壤容重下降、孔隙增多、持水能力增强。土壤pH值以灌丛最高,仪花和蚬木林的土壤有机质、全氮和碱解氮含量明显高于灌丛和灌木,灌丛、灌木的土壤全磷、全钾和速效钾含量则显著高于次生乔木林; 土壤速效磷和交换性钙含量差异不显著。CCA可以有效筛选土壤质量评价指标,土壤质量综合评价分值的大小顺序为: 仪花林(0.41)>蚬木林(0.27)>灌丛(-0.20)>灌木林(-0.44)。导致灌丛和灌木林土壤质量较低的原因主要与群落生产力低、土壤有机质等养分积累少有关。
英文摘要	Evaluating soil quality in Karst mountains is important to vegetation restoration and desertification control in the rocky region. Based on the analyses of soil fertility characteristics,canonical correspondence analysis (CCA) was used in conjunction with factor analysis to quantitatively assess the soil fertility of scrub,shrub,Lysidice rhodostegia forest,and Excentrodendron hsienmu forest in the Karst mountains of Pingguo County,southwest Guangxi. The results indicated that along with the restoration of vegetation,soil bulk density decreased while soil porosity and soil water-holding capacity increased. Of the four communities,the scrublands had the highest soil pH. Soil organic matter,total nitrogen,and available nitrogen concentrations in L. rhodostegia and E. hsienmu forests were significantly higher than in the scrublands and shrublands. However,soil total phosphorus,total potassium,and available potassium concentrations in the scrublands and shrublands were significantly higher than in the two forests. Soil available phosphorus and exchangeable calcium concentrations showed no detectible differences among the four plant communities. Our results suggested that CCA was effective for screening the soil fertility assessment index,and the integrated assessment scores of soil quality of the four communities were in the order of: L. rhodostegia forest (0.41) > E. hsienmu forest (0.27) > scrub (-0.20) > shrub (- 0.44). Lower plant productivity and nutrient accumulation were the primary factors resulting in poor soil quality in the scrublands and shrublands.
中文关键词	喀斯特山地 ; 典范对应分析 ; 因子分析 ; 土壤肥力 ; 群落类型
英文关键词	Karst mountains canonical correspondence analysis factor analysis soil fertility community type
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:5540974
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233240
作者单位	广西壮族自治区林业科学研究院, 广西优良用材林资源培育重点实验室, 南宁, 广西 530002, 中国
推荐引用方式 GB/T 7714	欧芷阳,申文辉,庞世龙,等. 平果喀斯特山地不同植物群落的土壤质量评价[J],2015,34(10):2771-2777.
APA	欧芷阳,申文辉,庞世龙,彭玉华,谭一波,&何琴飞.(2015).平果喀斯特山地不同植物群落的土壤质量评价.生态学杂志,34(10),2771-2777.
MLA	欧芷阳,et al."平果喀斯特山地不同植物群落的土壤质量评价".生态学杂志 34.10(2015):2771-2777.