生态与农村环境学报2018，Vol.34Issue(4)：326-332,7.DOI:10.11934/j.issn.1673-4831.2018.04.005
川西周公山柳杉人工林林窗大小对土壤理化性质和物种多样性的影响
Effects of Size of Gaps in Cryptomeria fortunei Plantation on Soil Physicochemical Properties and Species Diversity in Zhougong Mountain
摘要
Abstract
Effects of size of gaps in a Cryptomeria fortunei plantation in the Zhougong Mountain,Southwest China on soil physicochemical propertis and species diversity were investigated.Soil samples and floral and faunal species were gathered from five gaps different in size,i.e.50-100,＞100-150,200-250,400-450 and 600-650 m2,for analysis of seil properties,like pH,organic matter content,and some others and species diversity.Results show:(1) With the gap increasing in size,the number of species in various layers of the community exhibits a parabolic curve,that is,rising first and then falling,while Shannon-Wiener index (H),Simpson index (H') and Pielou index (Jsw) of the shrub layer and herb layer are higher in the gaps than under closed canopy;(2) The content of soil available potassium in the 0-20 cm soil layer is on the same trend;(3) In the gaps,variation of species diversity is related to a various extent to soil physico-chemical properties for instance species richness index (D),H and H'of the herb layer are closely related to soil pH,and D and H to soil available potassium (P＜0.05),indicating that plant species diversity is closely related to soil pH and available potassium in the forest.关键词
柳杉人工林/林窗/土壤理化性质/物种多样性/相关系数Key words
Cryptomeria fortunei plantation/forest gap/soil physicochemical property/species diversity/correlation coefficient分类
农业科技引用本文复制引用
蒋倩,姚俊宇,伍炫蓓,郝建锋,裴曾莉,李天玲,石博文,张彬,齐锦秋..川西周公山柳杉人工林林窗大小对土壤理化性质和物种多样性的影响[J].生态与农村环境学报,2018,34(4):326-332,7.基金项目
四川省教育厅一般项目(自然科学,15ZB0020) （自然科学,15ZB0020）
国家自然科学基金(31370628) （31370628）
国家“十二五”科技支撑计划(2011BAC09B05) （2011BAC09B05）
四川农业大学双支计划博士专项基金(00370401) （00370401）
四川农业大学2015年国家级大学生创新性实验计划(1510626064) （1510626064）
