干旱区生态环境知识资源中心(Arid): 民勤荒漠区主要植物的物候特性与牧草利用

Arid

	民勤荒漠区主要植物的物候特性与牧草利用
其他题名	Study on the Phenological Characteristics of the Main Plant Species and the Use of Pastures in the Minqin Desert Areas
	常兆丰1 ; 韩福贵 1; 仲生年 1; 柴尔武 2
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2010
卷号	27 期号:1 页码:20-26
中文摘要	通过设置样方、样点和运用物候观测,对退化荒漠植物群落进行轻度放牧利用分析,即运用植被状况与降水量的关系,分析限制植物生长的因素;运用不同稳定性沙丘的植被状况和土壤种子库资料,分析荒漠草地的可利用性和可利用程度;运用物候资料分析民勤荒漠区(灌木和草本植物)牧草利用的主要季节.结果表明:民勤荒漠草地土壤种子库中植物种子丰富,影响当地植物密度和植被盖度的关键因素是降水,可进行轻度放牧.轻度放牧时,要依据牧草展叶盛期的开始序列和果熟期的开始序列选择植物群落,实行小规模、间歇式轮牧.展叶盛期为一年中牧草的第1个利用季节,果熟期为一年中的第2个利用季节.
英文摘要	Research on gazing intensity is a hot field in grassland research in recent years. Is it possible that the moderate grazing results in a degeneration of desert plant communities? What is the basis for the use of moderate grazing and how can a rational grazing be implemented? In order to find the solutions of these issues, in this paper the phenological characteristics of the main plant species and the use of pastures in the Minqin desert areas are ana-lyzed. A key factor restricting plant growth is analyzed using the relationship between vegetation status and precipi-tation. The availability and accessibility of the extent of desert steppes are researched using the data of vegetation and soil seed bank of the sand dunes with different stability levels. The main season of the use of shrubs and herba-ceous plants is analyzed using the phenological data in the Minqin desert areas. The results show that plant seeds are rich in soil seed bank in the Minqin desert steppes. Precipitation is the key factor restricting plants density and vegetation coverage. It is possible to graze moderately in the steppes. It is necessary to choice the plant communi-ties according to their leaf shooting stage and fruit-mature stage to graze by taking an intermittent rotation way. The first grazing season is from the beginning of leaf shooting stage, and the second one is from the beginning of fruit-mature stage.
中文关键词	荒漠草地 ; 植物群落 ; 放牧强度 ; 土壤种子库 ; 物候 ; 降水 ; 民勤
英文关键词	desert grassland plant community grazing intensity soil seed bank phenology precipitation Mingin
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:3858775
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225044
作者单位	1.甘肃民勤荒漠草地生态系统国家野外科学观测研究站, 民勤, 甘肃 733300, 中国; 2.甘肃武威市石羊河林业总场, 民勤, 甘肃 733300, 中国
推荐引用方式 GB/T 7714	常兆丰,韩福贵,仲生年,等. 民勤荒漠区主要植物的物候特性与牧草利用[J],2010,27(1):20-26.
APA	常兆丰,韩福贵,仲生年,&柴尔武.(2010).民勤荒漠区主要植物的物候特性与牧草利用.干旱区研究,27(1),20-26.
MLA	常兆丰,et al."民勤荒漠区主要植物的物候特性与牧草利用".干旱区研究 27.1(2010):20-26.