THE DISTRIBUTION OF RAUNKIAER LIFE FORMS IN ISRAEL IN RELATION TO THE ENVIRONMENT

被引：102

作者：

DANIN, A

ORSHAN, G

机构：

[1] Department of Botany, Hebrew University of Jerusalem, Jerusalem

来源：

JOURNAL OF VEGETATION SCIENCE | 1990年 / 1卷 / 01期

关键词：

Geomorphological district; Gradient; Rainfall; Temperature;

D O I：

10.2307/3236051

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Abstract. The distribution of Raunkiaer life forms along rainfall and temperature gradients was determined for the floras of 27 geomorphological districts in Israel. Phane‐rophytes and chamaephytes are relatively strongly represented in districts with very low rainfall, decrease up to 150 mm and 400 mm of mean annual rainfall respectively, and remain more or less constant at higher rainfall figures. Hemicryptophytes andgeophytes increase along the rainfall gradient. Therophytes show an optimum between 200 and 500 mm of rainfall. The distribution of life forms is less clearly correlated with mean annual temperature, though hemicryptophytes and geophytes show a negative correlation with mean annual temperature and with mean annual minimal temperature. 1990 IAVS ‐ the International Association of Vegetation Science

引用

页码：41 / 48

页数：8

共 31 条

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