falling gradient meaning in English
坡降
下降坡度
Examples
- Absolute amounts of soil erosion is not large for the falling gradient in black soil region , but the nutrient is high in erosion soil , the nutrient of erosion soil and runoff is high , which leads to soil fertility degeneration , while n and p nutrient pour into water with surface runoff , it leads to water nutrient enrichment and pollution , and becomes one of confined factors of water nutrient enrichment
吉林农业大学硕士学位论文黑土地表径流氮磷养分特征及其与肥力退化的关系由于黑土耕作区坡度平缓，土壤侵蚀的绝对量并不很大，但由于土壤中携带的养分高，养分流失的较多，流失的养分将引起肥力的退化，而且氮磷等养分随地表径流流出汇入各种水体，引起水体富营养化和污染，成为水体富营养化的限制因子。