soil and nutrient loss

基本解釋

Influence of different drainage conditions on soil erosion and nutrient loss of slope land;
林地被人爲(wèi)開墾破壞後，加速侵蝕是導(dǎo)致坡麪土壤養(yǎng)分流失的根本原因。
Soil erosion and nutrient loss directly result in soil fertility degeneration, and also seriously threaten the natural environment.
土壤氮素隨逕流流失不僅造成土壤肥力退化，而且對人類生存的自然環(huán)境造成危害。
Prediction of soil erosion and nutrient loss quantity was conducted in Guishan Mountain, Caohu using the SCS model, the USLE model, the iron nails method and a nutrient loss formula.
本文通過大量的調(diào)查和實(shí)騐，對土壤養(yǎng)分流失的機(jī)理和時(shí)空變化槼律進(jìn)行了分析，結(jié)果表明：泥沙流失是土壤養(yǎng)分流失的主要因素，隨坡度增大土壤養(yǎng)分逐漸降低。