干旱区生态环境知识资源中心(Arid): 贵州无籽刺梨基地土壤及树体特征对种植年限的响应

Arid

	贵州无籽刺梨基地土壤及树体特征对种植年限的响应
其他题名	Response of Soil and Tree Body Characteristics to Planting Ages of Rosa sterilis S.D.Shi in the Planting Bases of Guizhou Province
	杨皓; 李婕羚; 范明毅; 胡继伟; 李朝婵
来源期刊	土壤通报
ISSN	0564-3945
出版年	2016
卷号	47 期号:4 页码:797-804
中文摘要	基于贵州喀斯特山区典型无籽刺梨种植基地的根系土壤的化学指标、物理指标和生物学指标和树体特征,采用空间替换时间的方法,对喀斯特山区无籽刺梨种植基地的土壤质量现状进行全面分析与评价,研究不同种植年限的基地的土壤质量及其树体特征对植被恢复的响应与机制。结果显示:不同林龄的无籽刺梨种植基地的土壤化学、物理和生物学指标差异明显,兴仁县(1~ 2a)土壤的整体变异程度大于乌当区(3~ 4a)和西秀区(8~ 9a),并随着种植年限的增加,土壤质量有所提高;无籽刺梨的冠幅、树高、叶绿素和地径呈现逐渐增加趋势,而分枝数则呈现先增加后下降趋势;兴仁县的pH(0.25)、乌当区的有机质(0.44)和西秀区的全磷(0.46)的隶属度均值最小,分别为三地土壤质量限制性因子;而有效磷(0.19)、有效钾(0.17)和容重(0.25)分别为三地的最大权重系数,是提高各自土壤质量的最重要因子;土壤质量综合指数分别为1.17、 1.40和1.90,分别较兴仁县增加了19.69%和61.69%,增加趋势明显。研究表明,无籽刺梨的种植有利于贵州喀斯特山区土壤质量的改善,可作为中度、轻度和潜在石漠化地区生态重建的经济树种。
英文摘要	The typical planting bases of Rosa sterilis S.D.Shi with different ages were investigated to study the root-soil quality (chemical, physical and biological items) and these tree body characteristics in the Karst mountainous regions of Guizhou Province. This paper analyzed and evaluated soil qualities in these regions based on the methods of replacing space with time and studied the response mechanism of soil qualities and tree body characteristics to vegetation restoration. The results showed that there were obvious differences among the chemical, physical and biological items of soil quality. The variation degrees of soil samples were generally higher in Xingren County in comparison with that in Wudang and Xixiu Districts, and soil quality was improved with the planting age. Canopy, height, chlorophyll and ground diameter of fruit trees showed the gradually increasing trend, however, the divarication was first in an upward trend and then in a downward mode. Moreover, the mean memberships of pH value (0.25) in Xinren County, organic matter (0.44) in Wudang District and total phosphorus (0.46) in Xixiu District were the lowest and these three factors were the principal limited factors correspondingly in the three different areas. The important factors to improve soil quality were available phosphorus (0.19) and potassium (0.17) and bulk density (0.25) with the biggest weight coefficients in these three areas. The integrated indexes of soil quality significantly increased by 19.69% and 61.69%, respectively, in Wudang District and in Xixiu District than in Xinren County with a value of 1.17. The plantation of these fruit trees were beneficial for the improvement of soil quality in Karst mountainous regions, which could be used as economic trees for ecological restoration of slight or latent rocky desertification areas in Guizhou Province.
中文关键词	无籽刺梨 ; 林龄 ; 土壤质量 ; 树体特征 ; 贵州山区
英文关键词	Rosa sterilis S.D.Shi Forest age Soil quality Tree body characteristic Mountainous region in Guizhou Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY ; FORESTRY
WOS研究方向	Agriculture ; Forestry
CSCD记录号	CSCD:5849867
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/2XILL650/235076
作者单位	贵州师范大学, 贵州省山地环境信息系统与生态保护重点实验室, 贵阳, 贵州 550001, 中国
推荐引用方式 GB/T 7714	杨皓,李婕羚,范明毅,等. 贵州无籽刺梨基地土壤及树体特征对种植年限的响应[J]. 贵州师范大学,2016,47(4):797-804.
APA	杨皓,李婕羚,范明毅,胡继伟,&李朝婵.(2016).贵州无籽刺梨基地土壤及树体特征对种植年限的响应.土壤通报,47(4),797-804.
MLA	杨皓,et al."贵州无籽刺梨基地土壤及树体特征对种植年限的响应".土壤通报 47.4(2016):797-804.