干旱区生态环境知识资源中心(Arid): 红砂种群自然更新与人工辅助恢复机理的初步研究

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	红砂种群自然更新与人工辅助恢复机理的初步研究
其他题名	A primary study on the mechanism of natural regeneration and artificial restoration of Reaumuria soongorica population
	朱恭; 王万鹏
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2004
卷号	39 期号:4 页码:427-433
中文摘要	2003年7～10月,选择黄土丘陵区荒漠草原地带两个相似生境、5个不同干扰特征的中幼龄红砂种群更新恢复类型区为研究对象,采用系统取样法或样行法,开展了干扰条件下的红砂种群种子更新与恢复机理的初步研究.结果表明,红砂种子更新恢复能力与干扰水平呈正相关;干扰因子的特征不同,则更新恢复能力不同;尤其水分因子参与对红砂种群的自然更新与人工辅助恢复起着关键性的作用.以更新密度作为参数,其数值依次为:灌溉+整地+自然更新最大,平均为13.04丛/m2,变化在3～28丛/m2之间;无灌溉+整地+人工种植恢复平均为1.66丛/m2,变化在1～20丛/m2之间;无灌溉+整地+自然更新恢复平均为1.11丛/m2,变化在0.5～17丛/m2之间;无灌溉+破土+自然更新平均为0.255丛/m2,变化在0.1～3.0丛/m2之间;无干扰自然更新平均为0.012丛/m2.
英文摘要	The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of Reaumuria soongorica population at mid-young age in desert grassland region, according to two similar habitate involved five different disturbance characteristics. The results showed that the capability of Reaumuria soongorica in seed actual reproduction and artificial restoration was positively correlated with disturbance levels; the capability of restoration varied with the characteristics of disturbance factors, of which water was the key factor. The actual reproduction and artificial restoration density were the biggest with the treatment of irrigation+soil preparation+natural regeneration, and the average numerical value was 13.04 clumpes/m2 ranging from 3 clumpes/m2to 28 clumpes/m2.The others were as follows: 1.66 clumpes/m2 occurred in the treatment of unirrigation+soil preparation+artificial regeneration, ranging from 1 clumpe/m2 to 20 clumpes/m2; 1.11 clumpes/m2 occurred in the treatment of unirrigation+soil preparation+natural regeneration, ranging from.0.5 clumpe/m2to 17 clumpes/m2; 0.255 clumpe/m2occurred in the treatment of unirrigation+break ground+natural regeneration, ranging from 0.1 clumpe/m to 3.0 clumpes/m , and 0.012 clumpe/m2 occurred in the treatment without disturbance.
中文关键词	红砂种群 ; 干扰 ; 更新 ; 恢复 ; 更新密度
英文关键词	Reaumuria soongorica disturbance regeneration restoration regeneration density
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:1700967
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204970
作者单位	兰州市南北两山环境绿化工程指挥部, 兰州, 甘肃 730046, 中国
推荐引用方式 GB/T 7714	朱恭,王万鹏. 红砂种群自然更新与人工辅助恢复机理的初步研究[J],2004,39(4):427-433.
APA	朱恭,&王万鹏.(2004).红砂种群自然更新与人工辅助恢复机理的初步研究.甘肃农业大学学报,39(4),427-433.
MLA	朱恭,et al."红砂种群自然更新与人工辅助恢复机理的初步研究".甘肃农业大学学报 39.4(2004):427-433.