1) soil loss tolerance of urban soil and water loss
城市水土流失允许侵蚀量T值
2) T value of urban soil and water loss
城市水土流失T值
4) soil loss tolerance
土壤允许流失量
1.
In order to prevent from the deterioration of soil fertility and the decrease of land productivity, the factors, such as rate of soil forming, the depth of soil layer and the deterioration of soil fertility, are mainly considered in previous definitions of soil loss tolerance (T).
已有土壤允许流失量(T值)定义多以防止土壤肥力减退、土地生产力下降为目标,考虑的主要因素为成土速度、土层厚度和土壤肥力减退,确定T值的依据是土壤侵蚀速率不大于成土速率,保证土壤资源得到不断更新。
5) soil loss tolerance
允许土壤流失量
1.
The concept of soil loss tolerance has been widely used over the world as well as in China.
为确定防治农田土壤侵蚀的标准,20世纪中叶美国土壤学家首先提出了“允许土壤流失量”的概念,之后这一概念又延伸应用到流域和区域土壤侵蚀评价。
6) permissible amount of soil loss
允许流失量
补充资料：初速下降量超过允许值
一般允许值，小口径枪械为50%，大口径枪械为10%，即认为枪管寿命告终。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条