半荒漠的空间分布及景观生态总析  

Spatial Distribution of Semi-deserts in China and Overall Analysis by Landscape Ecology

作　　者：马世威[1] 马玉明[1] 方天纵 

机构地区：[1]内蒙古林学院,呼和浩特010019

出　　处：《干旱区研究》1998年第4期58-63,共6页Arid Zone Research

摘　　要：本文从国内外对半荒漠划分指标、概念的歧义，分析了半荒漠的内涵、外延、自然环境特征及在我国的具体分布；讨论了半荒漠与荒漠及干旱地区的关系、区别；明确了半荒漠的划分指标及其概念，并从防沙治沙角度出发，提出了把半荒漠作为特定的生物气候带，并列于草原与荒漠之间。The paper, starting with the differences on classification index and concept of sedri -desert at home and abroad, analyzes the intension and extention physical features and spatial distributionof semi - desert; discusses the relation and difference among semi - desert, desert and arid land; makesdefinite the classilication indexes and concept of semi - desert; suggests taking sewh - desert, a specificbioclirnatic zone,as equal as steppe and desert from the angle of desertification coInbating.

关 键 词：半荒漠 荒漠 干旱地区 空间分布 

分 类 号：P941.73[天文地球—自然地理学]