Study on Soil Moisture Characteristics and Water Use Efficiency ofAchnatherum splendens rassland in Loess Plateau

J4 ›› 2004, Vol. 22 ›› Issue (4): 51-55.

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Study on Soil Moisture Characteristics and Water Use Efficiency ofAchnatherum splendens rassland in Loess Plateau

WANG 　Jing¹, CHENG Ji-Min², MO Hui-E², FANG 　Feng³

(l.Institute of Arid Meteorology,CMA,Key Laboratory of Arid Climatic Change and Reducing Disaster,Lanzhou　730020,China
2.Northwest Sci-Tech University of Agriculture & Forestry,Institute of Soil and Water Conservation of
CAS,Yangling　712100,Shaanxi China;3.Lanzhou Center Meteorological
Observatory, Lanzhou　730020,China)

Received:2004-10-12 Revised:2004-11-03 Online:2004-12-31 Published:2004-12-31

黄土高原芨芨草土壤水分特征及水分利用效率研究

王　静¹,程积民²,万惠娥²,方　锋³

(1.中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,甘肃兰州　730020;2.西北农
林科技大学,中国科学院水利部水土保持研究所,陕西杨凌　712100;3.兰州中心气象台,甘肃兰州　730020)

作者简介:王静(1978-),女,陕西汉中人,助理研究员,硕士,主要研究方向为草地生态学.

Abstract

Abstract:

Soil moisture characteristics and water use efficiency ofAchnatherum splendensgrassland were analyzed. The results show
that soil water storage capacity has obvious seasonal change and soil profile can be divided into three layers,fast-change, active and
stable layer. Community water use efficiency is highest in June, while simple leaf water use efficiency in July.

Key words: Achnatherum splendens, soil moisture characteristics, leaf, community, water use efficiency

摘要：

通过对芨芨草草地土壤水分状况及芨芨草水分利用情况进行初步分析,结果表明:芨芨草地土壤贮水量呈明显的季节变化;土壤剖面可依含水量变化分为3层,即速变层、活跃层和稳定层。芨芨草群体水分利用效率以6月份为最高,而单叶水分利用效率7月份最高,具有较强的抗旱性。

关键词: 芨芨草, 土壤水分, 群体, 单叶, 水分利用效率

CLC Number:

S152.7

WANG 　Jing, CHENG Ji-Min, MO Hui-E, FANG 　Feng. Study on Soil Moisture Characteristics and Water Use Efficiency ofAchnatherum splendens rassland in Loess Plateau[J]. J4, 2004, 22(4): 51-55.

王　静, 程积民, 万惠娥, 方　锋. 黄土高原芨芨草土壤水分特征及水分利用效率研究[J]. J4, 2004, 22(4): 51-55.

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Study on Soil Moisture Characteristics and Water Use Efficiency ofAchnatherum splendens rassland in Loess Plateau

黄土高原芨芨草土壤水分特征及水分利用效率研究

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