查询词典 water and soil

Water and soil resource are important substantial basic of people's subsistence and development,especially are essential conditions of agriculture production, a mass of water and soil loss became a global bionomics question.

水土资源是人类生存和发展的重要物质基础，是进行农业生产的基本条件，大量的水土流失已经成为不可忽视的全球性生态问题。

Today's earth faces many a problem of environm en t and ecosystem:"greenhouse effect",chemical pollution,acid rain,sand dust dev il,went short of water wealth,water and soil bereave,soil fallen into desert,spe cies eradication,forest demolish,etc.

今天的地球面临着许许多多的环境和生态问题，"温室效应"、化学品污染、酸雨、沙尘暴、淡水资源匮泛、水土流失、土地沙漠化、物种灭绝、森林破坏等等。

This article provide four usual rocksgranite, limekiln, purple gritstone and red sandstone--that are incline to water and soil loss and reasons of water and soil loss.

本文提出了华南地区常见的4种产生水土流失的岩性(花岗岩、石灰岩、紫色砂页岩和红色砂砾岩)，并在分析了其产生水土流失原因的基础上，提出了治理每种岩性水土流失的具体措施。

Loess Plateau is locate in areas transited from semi-arid and semi-humid areas to arid hungriness area, Because of the influence of war and long-term\'s unreasonable utilization, the ecological environment in this region is poor and serious soil and water loss is heavy. The water and soil conservation ecosystem project of emphasis tributary is implemented by Yellow River Committee from 2000, during several years centralized treatment,Project Construction have got remarkable effect.

黄土高原地处我国从半湿润半干旱带向干旱荒漠带过渡的地区，由于受历史上战乱和人为不合理开发利用的影响，生态环境比较脆弱，经济发展滞后，水土流失严重。2000年以来，黄委会启动实施了以黄河多沙粗沙区为治理重点的黄河水土保持坡面生态工程的重点支流治理项目，经过几年投资集中治理，项目建设成效显著。

The achievement of this project can be briefly summed up as following:(1)the carbon contributing to karst processes mainly comes from ecological system itself under the condition of existence of vegetation and soil covers;(2)results indicates that the depositing processes of rainfall to CO2 is an important "sink" to global carbon cycle;(3)owing to the differences of vegetation and surface covering, the adjusting effect of ecosystem to environmental humidity, temperature and CO2 concentration near surface air which indicates different benefit of preventing water and soil from lose is marked;(4)the preponderant species of vegetation in the karst ecosystems which have different kinds of carbonate rocks are obviously variant, and this situation results to the clearly differences of the micro － habitat , structure of surface cover and water holding capacity;(5) the relevant study showed that the carpophagous animals and birds make a important role in the spreading of vegetation seeds. The designed experience for the study of seed reservoir was not able to obtain a satisfactory result.

主要研究成果包括：通过对表层系统碳库的研究，认为在有土壤和植被覆盖时，岩溶作用过程中的碳主要来自生态系统本身而不是母岩；降雨对大气碳具有重要&沉淀&作用，是碳的一个重要汇；不同植被类型表层岩溶系统对系统水份、空气湿度、气温、土温和近地表 CO2浓度等具有明显调节作用，具有不同的水土保持效益；不同母岩的岩溶生态系统的植被优势种、属差异明显，由此形成的小生境、地被物及其持水性差异巨大；对典型岩溶表层系统种子库的试验研究没有取得满意结果，但食果动物、鸟类对种子传播起到一定作用。

Sabaigrass planting prevent and cure water and soil loss The study results indicated: Sabaigrass lowered the water and soil loss of purplesoil distinctly.

3龙须草种植能有效防治水土流失本研究结果表明：种植龙须草能显著降低紫色土荒坡地的水土流失。

This study mainly focused on the water resource and environmental crisis, which are all caused by agricultural irrigation in Inner Mongolia irrigation area. Based on the balance of total water quantity between ground water, underground water and soil water, a study was made on the water quantity varieties in the headraces and offtakes, and the affection of the water cycle under the human activities was quantitively caculated.

针对引黄灌区所面临的水资源问题及灌溉引起的环境问题，以内蒙古河套灌区为研究对象，从灌溉引水、用水、排水之间的转化关系为切入点，以地表水、土壤水和地下水之间的水量平衡理论为基础，定量研究河套灌区在人类影响条件下的水循环特征。

This study mainly focused on the water resource and environmental crisis, which are both caused by agricultural irrigation in the Inner Mongolia irrigation area. Based on the balance of total water quantity between ground water, underground water and soil water, a study was made on the water quantity in the head races and offtakes, and the effect of human activities on the water cycle was quantitatively calculated.

针对引黄灌区所面临的水资源问题及灌溉引起的环境问题，以内蒙古河套灌区为研究对象，从灌溉引水、用水、排水之间的转化关系为切入点，以地表水、土壤水和地下水之间的水量平衡理论为基础，定量研究了河套灌区在人类影响条件下的水循环特征。

That make the people' cognition advanced, redound to forecastthe water and soil loss, and prevent and cure the water and soil loss.

水土流失因子的研究及模型的建立提高了人们对水土流失的认识，为预测、防治水土流失做出了贡献。

Based on the measured data of soil and water loss in the monitoring stations in different relief areas in Zhangjiakou, the spatial suitabilities of water and soil conservation measures were researched.

该文以张家口各个地貌类型区水土流失监测站实测数据为基础，研究了该区水土保持措施的空间配置的适宜性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。