1) nutrient loss quantity
养分流失量
1.
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.
采用SCS模型,USLE模型,铁钉法和养分流失公式,对巢湖龟山研究区进行了水土流失量和养分流失量的预测和估算。
2) Nutrient loss
养分流失
1.
Influence of different drainage conditions on soil erosion and nutrient loss of slope land;
不同透水状况对坡地土壤侵蚀和养分流失的影响
2.
Research on the nutrient loss from purple soil under differentrainfall intensities and slopes;
不同雨强和坡度条件下紫色土养分流失规律研究
3.
A study on the effect of the Vetiver zizanioides contour hedgerow on the soil and nutrient loss control;
香根草植物篱控制坡地侵蚀与养分流失研究
3) nutrient losses
养分流失
1.
Based on the observation in runoff plots in the western hills of Sichuan Province in 2003, the feature of runoff, sediment yield and the nutrient losses in different patterns of forest (bamboo)-grass compound management were analyzed.
通过坡面人工径流小区的定位观测,对川西低山区2003年几种林(竹)-草复合经营模式与农耕地的产流产沙特征及养分流失情况分析与比较,结果表明:①植被类型及土地经营利用方式的不同对径流特征及产沙量有很大的影响,苦竹+牛鞭草模式在3年后所表现的生态效益优于其他模式;②由于川西低山区强降雨主要集中在7、8月份,此两月各模式与农耕地的产流产沙量均达各自全年总量的70%以上。
2.
More importantly, features of surface runoff and sediment yield, nutrient losses and factors which influenced these features were discussed.
通过坡面人工径流小区的定位观测,在分析与比较川西低山区2003～2004年几种林(竹)+草复合经营模式与农耕地的植被生长状况、经营措施、土壤物理性质及林分持水性能的基础上,重点探讨了各基本模式与农耕地的产流产沙特征和养分流失情况及其影响因素,结果表明: 1 退耕种植的林+草、竹+草有别于其它生态林植被模式,也不同于农耕地的高强度干扰。
4) nutrients loss
养分流失
1.
Through field survey and experiments, the mechanism and space─ time variation of soil nutrients losses are analyed.
本文通过大量的调查和实验，对土壤养分流失的机理和时空变化规律进行了分析，结果表明：泥沙流失是土壤养分流失的主要因素，随坡度增大土壤养分逐渐降低。
2.
In order to study the law of soil nutrients loss in red-soil slop land,the field experiments under three ecological measures and three typical rainfalls were performed to investigate the N and P transfer process in Soil Conservation Ecological Science&Technology Demonstration Park in Jiangxi Province from 2006 to 2007.
为了研究红壤坡地养分流失规律,通过江西省水土保持生态科技园2006～2007年野外试验,分析了3种生态措施、3种典型降雨红壤坡地N、P流失过程。
3.
In this study, field experiments were conducted to investigate runoff and sediment producing processes and different forms of nutrients loss in the shrub plots with 30% or 80% covered by the native shrub Caragana korshinskii and bare soil plot (control) at a slope of 15°under simulated rainfall intensity of 60 mm/h, 100 mm/h, and 140 mm/h.
本文以黄土高原柠条和狼牙刺两个乡土灌木群落为研究对象,通过野外模拟降雨实验,重点研究了降雨强度、历时和群落盖度对坡面产流产沙及养分流失的影响;并对两种灌木群落下坡面产流产沙过程、土壤养分流失过程以及侵蚀泥沙的颗粒机械组成进行了对比研究。
5) Model on loss of soil nutrients
养分流失模型
6) soil nutrient loss
土壤养分流失
1.
In order to reveal the inherent mechanism of soil nutrient loss along with runoff loss,the paper conducts tests and study on the influence of rainfall intensity of 40,50,60 and 80 mm/h respectively to the soil nutrient loss by using the methods of reducing infiltration intensity through underground water supply and artificial rainfall.
为揭示土壤养分随径流流失的内在机制,采取地下供水方式使土壤入渗强度降低和人工降雨的方法,进行了雨强对土壤养分流失影响的试验研究。
2.
Man made accelerated erosion is a key reason for soil nutrient loss after forestlands were disturbed by human being.
林地被人为开垦破坏后 ,加速侵蚀是导致坡面土壤养分流失的根本原因。
3.
Relief determinants such as slope length and slope steepness are the main reasons for leading to soil nutrient losses.
根据黄土丘陵区坡地径流小区试验，研究了次降雨条件下，坡地地形因素中的坡长及坡度与土壤养分流失的关系和土壤可溶性养分离子随径流液而流失的状况。
补充资料：养分
1.物质中所含的能供给有机体营养的成分。
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