J4 ›› 2008, Vol. 25 ›› Issue (1): 63-66.

• 论文 • 上一篇    下一篇

禁牧对安西荒漠化草原芨芨草光合生理生态特征的影响

赵鸿王润元郭铌刘宏谊王鹤龄   

  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,中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州730020
  • 收稿日期:2006-07-26 修回日期:2006-12-18 出版日期:2007-03-31 发布日期:2007-03-31
  • 作者简介:赵鸿(1977一),女,甘肃临洮人,硕士,主要从事气候变化、农业生态等方面的研究工作.E—mail:zhaohongh@126.com;hongzhh@ yahoo.com.cn
  • 基金资助:

    甘肃省退牧还草科技支撑项目“甘肃省退牧还草效益遥感监测研究(甘退牧200301)”资助

Efect of Enclosure on Photo—physiological Characteristics of Achnatherum  splendens in Deserted Grassland of Anxi

ZHAO Hong,W ANG Runyuan,GUO Ni,LIU Hongyi,WANG Heling   

  1. Key Laboratory ofArid Climatic Change and Reducing Disaster ofGansu Province,Key Open Laboratory ofArid Climate Change and Disaster Reduction ofCMA,Institute ofArid Meteorology,CMA,Lanzhou 730020,China
  • Received:2006-07-26 Revised:2006-12-18 Online:2007-03-31 Published:2007-03-31

摘要:

对安西温性荒漠化草原退牧还草围栏建设工程区芨芨草光合生理生态特征进行了监测分析。结果显示,与放牧区相比较,围栏禁牧草场环境中气温和叶温相对较低,空气湿度相对较高,二者环境有显著差异,表明禁牧极大地改善了草原牧草的生长环境。同时,禁牧区草地主要植物类群芨芨草叶片的光合速率较高,有利于其生长和干物质的积累。

关键词: 禁牧, 放牧, 草原, 光合生理生态特征, 影响

Abstract:

The photo—·physiological characteristics of Achnatherum splendens both in the enclosure an d the grazing pasture were moni-toted in Anxi.Th e results showed that the diference was significant between them.Th e air temperature and leaf temperature were rela.tively lower and the relative humidity Was higher in the enclosure compared with those in the grazing grassland.These indicated that the environment of grass growth Was greatly improved by enclosure means.At the same time,there Was higher photosynthetic rate of Ach-hat.rum splendens in the enclosured grassland.This Was beneficial to growth of grass and accumulation of dry matter.

Key words: enclosure, grazing, grassland, photo—physiological characteristics, efect

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