摘要
生态需水是当前水问题的一个研究热点,对于生态环境急剧恶化的内陆干旱区,这一研究尤为紧迫。以民勤绿洲作为研究区,采用阿维里扬诺夫估算方法,对其生态需水量进行了计算。结果表明,民勤绿洲现有植被最低生态需水量为1.4927×108m3,而目前的生态用水量只有0.3525×108m3,远没有达到维持极限抗性面积下的生态需水量。民勤绿洲生态用水的严重不足,主要是受到农田灌溉用水的严重挤占,从而加快了生态环境的日益恶化。通过分析,提出了生态恢复的对策与建议。
Ecological water demand is one of the hotspots in water issues,especially in the arid areas whose eco-environmental condition is sharply deteriorated.By the method of Aweliyongrufe,this paper calculated the ecological water demand of Minqin Oasis.The results indicated that the minimum ecological water demand of existing vegetation in Minqin Oasis was 1.4927×10~8 m^3·yr^(-1),while the current ecological water use was only 0.3525×10~8 m^3·yr^(-1).Such a serious deficit of ecological water demand was mainly du...
出处
《生态学杂志》
CAS
CSCD
北大核心
2006年第7期813-817,共5页
Chinese Journal of Ecology
基金
国家自然科学基金项目(40501068)
甘肃省气象局气候资源评估专项资助项目(2005QHZY-2-2)
关键词
生态恶化
生态需水
生态恢复
民勤绿洲
ecological deterioration
ecological water demand
ecological reconstruction
Minqin Oasis.
