摘要
通过对塔里木河下游输水河畔10个采样区多枝柽柳茎杆年轮宽度测量与统计分析,结果表明,2000年应急输水前,塔里木河下游各采样区多枝柽柳茎直径连年生长量逐年变小并趋于接近,各采样区水环境状况趋于一致,并有逐年恶化的趋势;应急输水之后不同采样区受水强度不同,多枝柽柳茎直径连年生长量出现不同程度的增大;应急输水对多枝柽柳茎直径生长生态作用效果的显著性由输水前其所受干旱胁迫程度和受水量共同决定。
The annual rings of Tamarix ramasissima in ten transporting water river bank in the lower reaches of Tarim River were measured and statistically analyzed. The consequence indicates：annual stem diameter growth of Tamarix ramasissima in different locations in the lower reaches of Tarim River be-comes smaller and smaller year by year before emergency transporting water in 2000, and water environment condition of every locations nearly is in conformity with one another and there is a tendency to aggravate year by year; as there is different strength of water after emergency transporting water, annual stem diameter growth of Tamarix ramasissima in different locations has augmentations in different extent; the significant effect of emergency water conveyance on ecological effect of stem diameter growth of Tamarix ramasissima is determined by reception degree of drought before water conveyance and quantity of reception water.
出处
《新疆农业大学学报》
CAS
北大核心
2009年第2期1-5,共5页
Journal of Xinjiang Agricultural University
基金
国家"十一五"科技支撑计划项目(2006BAC01A03-2)
新疆维吾尔自治区重大科技专项(200733144-4)
关键词
塔里木河下游
多枝柽柳
茎直径
生长量
年轮
应急输水
lower reaches of Tarim River
Tamarix ramasissima
stem diameter
growth
tree-ring
emergency transporting water
