干旱区生态环境知识资源中心(Arid): 宁夏荒漠草原种子雨研究

Arid

	宁夏荒漠草原种子雨研究
其他题名	The Study on Seed Rain of Desert Steppe in Ningxia Hui Autonomous Region
	刘华; 蒋齐; 王占军; 何建龙
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2013
卷号	20 期号:5 页码:284-286
中文摘要	近年来,有关土壤种子库研究的报道较多,但种子雨的研究较少,因此以宁夏荒漠草原为研究对象,采用样线法,以培养皿为种子雨收集器,对种子雨的散布特点及种子雨与地上植被的关系进行了研究。结果表明:种子雨的植物种类为8种,多年生草本植物所占比例较大为62.5%;种子雨的散布810月份为逐渐递增的趋势,10月份为种子雨散布的高峰期,810月份种子雨的密度分别为(73.6012.24)个/m~2, (77.8511.81)个/m~2, (240.6241.08)个/m~2;种子雨植物密度和地上植物密度没有显著的相关性;种子雨植物种和地上植物种的相似性为0.457,相似性较低。研究结果可以为种子雨、种子库、地上植被间相互关系的研究提供参考。
英文摘要	In recent years, the soil seed bank has been widely reported, but few studies on seed rain has been concerned. Therefore, the desert steppe in Ningxia was selected as the study site. By using the line transect method, the Petri dish for seed rain collector, the seed rain characteristics and seed rain and vegetation were studied. The results showed that seed rain covered 8 plant species, perennial herbaceous plants accounted for a larger proportion which was 62.5%; seed rain from August to October presented gradually increasing trend, in October for the seed rain scatter is the peak, from August to October, seed rain densities were (73.6012.24) /m~2, (77.8511.81) /m~2, (240.6241.08) /m~2, respcectively; seed rain plant density and aboveground plant density had no significant correlation; similarity of seed rain plant and aboveground plant species was 0.457, which is the lower similarity. The research results can provide reference for the studies on seed rain, seed bank, the ground vegetation interaction.
中文关键词	荒漠草原 ; 种子雨 ; 散布特点 ; 相似性
英文关键词	desert steppe seed rain dispersal characteristic similarity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4978986
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230208
作者单位	宁夏农林科学院荒漠化治理研究所, 银川, 宁夏 750002, 中国
推荐引用方式 GB/T 7714	刘华,蒋齐,王占军,等. 宁夏荒漠草原种子雨研究[J],2013,20(5):284-286.
APA	刘华,蒋齐,王占军,&何建龙.(2013).宁夏荒漠草原种子雨研究.水土保持研究,20(5),284-286.
MLA	刘华,et al."宁夏荒漠草原种子雨研究".水土保持研究 20.5(2013):284-286.