摘要
分析了图们江天然水体 pH值时间和空间变化 ,并探讨其变化的成因。从年际变化上看 ,其 pH值有上升的趋势 ;从季节变化上看 ,其 pH值在6—7月份达到最大值。天然水体 pH值的变化受降水、河流含沙量及人类活动的影响明显。
The temporal and spatial evolution of pH-value of the natural water and the courses of formation in TUMEN water systems were presented in this paper. The pH-value increases yearly and gets peak-level during April and September. It has been indicated that precipitation, content of sand carried by water and human actions play a great effect on evolution of the pH-value.
出处
《农业环境保护》
CSCD
北大核心
2001年第1期4-6,共3页
Agro-Environmental Protection
基金
中国科学院重点项目!"中国粮食安全的分区水资源供需分析及对策"(KZ952 -J1 -032)支持
