2) assignment classification
培养方向分流
3) 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
4) 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。
5) nutrient flow
养分流
1.
The method that linked material flow with nutrient flow was adopted in this article in order to study nitrogen and phosphorus nutrient flows in the whole process from the fertilizer input to the consumption of corn.
采用物质流和养分流相结合的分析方法,沿玉米生产的肥料投入到玉米消费过程,研究氮、磷养分流动;以2004年为例,分析了中国玉米生产消费过程中氮、磷养分流动特点和资源的利用效率。
6) 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。
补充资料：旅游者流向与流量
旅游者流向与流量
旅游者流向与流里在一定时期内多数旅游者旅行的地域趋向。在洲际旅游中，旅游者一般集中于欧洲、北美、东亚和太平洋地区;在洲内旅游中，旅游者一般流向邻近国家和地区;在国内旅游中，旅游一般由城市流向乡村。与旅游者流向密切相关的因素，有旅游者收入水平，旅游设施与服务质量，旅游者的兴趣爱好，旅行安全与旅游地自然、地理、历史特征等。旅游者流向的趋势常常由于政治、战争、恐怖活动等而受到影响。一定时期内流向某地域的旅游者数量称为旅游者流量。旅游者流向与流量的多少，对于旅游接待国或地区的旅游业发展有重要意义。它是旅游市场上各旅游接待国或地区之间竞争的主要目标。
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