干旱区生态环境知识资源中心(Arid): 保护冷蒿草原对防止沙质草原沙漠化作用的分析

Arid

	保护冷蒿草原对防止沙质草原沙漠化作用的分析
其他题名	The Effect of Protecting Artemisia Frigida Communities on Preventing Sandy Grassland Desertification
	王静; 杨持; 刘美玲; 刘颖茹
来源期刊	内蒙古大学学报. 自然科学版
ISSN	1000-1638
出版年	2002
卷号	33 期号:5 页码:558-562
中文摘要	就保护冷蒿草原对防止沙漠化的作用进行了分析。草原退化和沙质草原的沙漠化在其演替进程的前一半是完全一样的，对沙质草原来说，到了冷蒿阶段如果不注意保护令其继续破坏，由于植被盖度下降，地表裸露而极易受到风蚀、水蚀作用，形成沙漠化土地，因此，冷蒿阶段是一个十分重要的阶段。其重要性反映在两个方面：其一，由于种群表现出较强的补偿生长的能力，因此有较强的抗干扰能力，只要合理调整草地的利用方式和利用季节，就有可能维持冷蒿群落的状况并有可能向生产力更高阶段恢复；其二，对于沙质草原来说，这是由草原退化向草原沙化转变的临界阶段，保护冷蒿群落对防止沙漠化的发生和发展将起到十分重要的作用。
英文摘要	The effect of protecting Artemisia frigida communities on preventing sandy grassland desertification was studied. The results show: the first half of succession in grassland degeneration and sandy grassland desertification is completely identical. If the grassland is not protected and is destroyed continually when it developed into A. frigida grassland stage, the vegetation on chestnut soil will be extremely degenerated and that on sandy soil will become desert because the exposed sandy soil is quite likely to be affected by wind and water erosion. So the stage of A. frigida grassland is a very important one. Its importance is shown in two aspects: first, along with the increase of grazing pressure, the vegetative tiller number, adventitious root number and stolen length of A. frigida population changed. This change reflects that the compensatory growth ability is much stronger. The ability is brought out by the variation of carbohydrate contents of A. frigida population in different seasons and under different grazing pressure. If the grassland can be utilized in sensible patterns and in right seasons, the grassland can keep on A. frigida communities and their productivity will be restored to a higher level. Second, as to sandy grassland, A. frigida community is both the critical stage in which grassland degeneration is likely into change to desertification and a key moment to prevent desertification.
中文关键词	冷蒿群落 ; 保护 ; 沙质草原 ; 沙漠化
英文关键词	Artemisia frigida prevention and control of desertification sandy grassland
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:948663
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203322
作者单位	内蒙古大学生命科学学院生态与环境科学系, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	王静,杨持,刘美玲,等. 保护冷蒿草原对防止沙质草原沙漠化作用的分析[J],2002,33(5):558-562.
APA	王静,杨持,刘美玲,&刘颖茹.(2002).保护冷蒿草原对防止沙质草原沙漠化作用的分析.内蒙古大学学报. 自然科学版,33(5),558-562.
MLA	王静,et al."保护冷蒿草原对防止沙质草原沙漠化作用的分析".内蒙古大学学报. 自然科学版 33.5(2002):558-562.