坡面径流和侵蚀泥沙是磷素进入洋河水库的主要非点污染源。
Runoff and soil losses from agricultural fields were considered as the major non-point sources of phosphorus entering the Yanghe Reservoir.
要加强对长江上游侵蚀泥沙，特别是金沙江下游区工程建设增沙的研究。
Research about erosion and sediment in the upper Yangtze river should be enhanced especially about sediment increase by project construction in the lower Jinsha river.
细颗粒泥沙的絮凝-分散对土壤结构的稳定性，土壤中农用化合物的迁移以及侵蚀泥沙的输移、沉积有重要作用。
Flocculation and deflocculation of fine sediment play an important role in soil structural stability, agro-chemical compounds movement and eroded sediment transport.
其他人指出，泥沙负荷的减少可能会导致下游河岸和湄公河三角洲的侵蚀。
Others point out that decreased sediment loads will likely lead to erosion of downstream riverbanks and the Mekong Delta.
因此石灰华中泥沙含量的变化趋势表征流域内土壤侵蚀的变化趋势。
Therefore, the change trend of the silt content in travertine shows the change trend of soil erosion in valley.
文章还对该地在海平面升降影响下的海岸泥沙运移机制以及海岸高海面堆积和现今海岸侵蚀现象作了解析。
The paper also makes an analysis on the migration mechanism of coastal sand, coastal deposit at high sea level and present coastal erosion under the influence of sea level change.
严重的泥沙淤积，反映出长江中上游地区土壤侵蚀十分强烈。
Serious silt accumulation reflects the intensive soil erosion in the upper and middle Yangtze River.
全流域的水沙过程包括降雨产流、汇流的全过程，以及泥沙侵蚀、输移、沉积的不同运动形态。
The whole process of water and sediment in watershed consist of water generation and concentration, sediment erosion, transportation and deposition.
本文系统的分析研究了长江上游地面侵蚀和河流泥沙两个系统。
The surface erosion and fluvial silt in upper reaches of Changjiang River were analyzed systematically.
在坡面径流泥沙计算中，传统的计算方法误将土壤中的孔隙水当作坡面径流来计算，从而不能准确反映土壤侵蚀状况。
Soil moisture is traditionally calculated as slope runoff by mistake in slope runoff and sediment calculation, which can not accurately reflect real soil erosion status.
严重的沟道侵蚀显著增加了运移到流域出口的泥沙。
Because there is serious gully erosion, the sediment loading of watershed outlet is obviously added.
因此开展水力侵蚀的研究，探索水力侵蚀产沙规律，对于土壤侵蚀的防治和各类泥沙灾害的治理，具有极大的生产实践意义。
So studying water erosion and probing the laws of sediment yield, have significant production practice meaning to the prevention and cure for soil erosion and all kinds of silt disaster.
在本区入海的一些河流上兴修的水库与挖沙采石，减少了入海泥沙量，这些人为因素是现今秦皇岛海岸侵蚀灾害的主要原因。
Man made reservoirs and sand excavation in some rivers reduce silt discharge into sea, these human activities are vital factors that cause coast erosion hazard in Qinhuangdao region recently.
对稳定性稀土元素和几种核素复合示踪土壤侵蚀与泥沙来源研究的国内外研究进展，进行了总结和评价。
The studies of those that stable rare earth elements trace soil erosion process and several nuclides are compounded together to distinguish source of sediment are also summarized and evaluated.
坡耕地作为重要的侵蚀产沙区，揭示其土壤侵蚀规律和泥沙运移方式，对建立土壤侵蚀预报模型、加强土地管理防止土壤退化具有十分重要的意义。
It is important to reveal the law of soil erosion and develop soil erosion forecast model, which has a bearing on preventing the loess of water and soil.
冲沟侵蚀是我国长江上游地区最重要的侵蚀过程，是河流泥沙的主要来源。
Gully erosion, extensively distributed and intensively developed in the Upper Yangtze River Basin, is the major sediment source of the Yangtze River.
动态土壤侵蚀包括依赖于空间与时间的土壤剥离、细沟的形成、水流中过量泥沙的沉积、沉积泥沙中细沟的再生等物理过程。
Dynamic soil erosion processes involve the spatial and time dependent processes of detachment, rill formation, deposition, re rilling from deposited sediment and scouring of rills.
第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。
First, erosion resulting from excessive deforestation in the upper reaches of the river. And second, heavy silting which raised the riverbed in the main channel.
利用黄河中游155个“闷葫芦”淤地坝沉积泥沙资料和相关侵蚀因子建立了侵蚀变权模型，用该模型计算了每个图斑的侵蚀量。
Using data of 155 sediment detentionbarriers which check all oncoming sediment and water flow, a erosion model with different weight is constructed.
同时，分析了该区间侵蚀产粗泥沙的分布规律。
Meanwhile, the distribution law of coarse sediment yielding is also discussed in this paper.
土壤侵蚀是引起土地退化和河流泥沙淤积的根源，其产生与各种自然因素和人类活动存在一定关系。
Soil erosion can result in land degradation and sediment deposition of a river, where soil erosion is connected with some natural factors and human activities.
但紫色土分布区的水土流失问题较为严重，对长江上游生态环境建设和安全都有不利影响。本文论述了紫色土的侵蚀和泥沙形成流失的特点。
The problem of severe soil and water loss in the purple soil area is adverse to eco-environment construction and safety in upper reaches of the Yangtze River.
但紫色土分布区的水土流失问题较为严重，对长江上游生态环境建设和安全都有不利影响。本文论述了紫色土的侵蚀和泥沙形成流失的特点。
The problem of severe soil and water loss in the purple soil area is adverse to eco-environment construction and safety in upper reaches of the Yangtze River.
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