查询词典 erosion cycle

The polymeric soil amendmentswere applied in increasing soil value,and reclamation of saliane sodic soil,and greeningdesert,and controlling water and soil erosion,and amending arid and semiarid soil,andincreasing fertilizer utilization rate and crop yield,etc.

本文研究了淀粉接枝共聚物、羧甲基纤维素接枝共聚物、壳聚糖接枝共聚物、聚丙烯酰胺及其衍生物等对赤红壤的改良作用，揭示了赤红壤在这些聚合物作用下理化参数的变化规律。

All valley deposits are subject to repeated erosion, transportation and redeposition.

所有的河谷沉积物都容易受到重复的浸蚀，搬运和再沉积。

There was no obvious erosion at the summit because of small slope gradient. Redeposition also took place at back-slope, foot-slope and toe-slope.

各地貌部位坡肩侵蚀最为严重，有机碳含量最低；坡顶坡度较小，侵蚀微弱；坡脚和坡足发生沉积。

The best way to undo the problem of soil erosion is to reforest the cultivated land.

解决水土流失问题的最好办法是退耕还林。

Along the upper reaches of the Jinsha, Lancang and Nujiang rivers and the Yarlung Zangbo River valley, where sandstorm and soil-erosion hazards are serious, a project to reforest cultivated land is being undertaken.

在风沙危害和水土流失严重的金沙江、澜沧江、怒江上游及雅鲁藏布江流域实施退耕还林工程。

Reforestation is an effective measure of vegetation restoration and erosion control in this area.

植树造林是该地区植被恢复发育及控制水土流失的有效措施。

Multipleprediction regression equations on surface runoff and soil erosion quantities are givenin the dissertation.The prediction errors of these equations are about 15% to20%.

另外，应用地表径流小区观测资料推算土壤的抗冲性指标一抗冲模数，能够真正地反映野外降水击溅和径流冲刷对土壤侵蚀量大小的影响。

With the case study on Wanzhou in the three-gorges reservoir area, it had been studied and analyzed that the potentialities of exploitation and use on land and ecological safety by established land use database, and it had been revealed that serious loss of water and erosion of soil, ecological environment fragility, the water conservancy project submergence a large amount of land, arrannements of the numerous immigrations need a large amount of land, contradictory remarkableness among human and land, and the latent crisis by extensive management land were main crises and questions of the land use.

利用建立的土地利用现状数据库，以三峡库区最大淹没区万州为研究对象，对库区土地开发利用潜力及生态安全性进行了分析和研究。揭示了库区土地资源利用中存在的主要危机是水土流失严重、生态环境脆弱，三峡工程淹没土地多、移民迁建占地比重大、人地矛盾加剧及粗放经营土地带来的安全隐患等问题。

It's a residual mountain which were a set of thrust blocks under the erosion unconformity. It's reservoir pore space is a fracture-vug-pore system of Ordovician carbonate karst.

该气藏的构造为道冲构造侵蚀而成的残丘山，储集体为奥陶系碳酸盐岩溶蚀缝洞孔体系，流体呈层状分布(集中分布于奥陶系峰峰组和上马家沟组上段)。

Where aridity, degeneration or soil erosion occurs as a result of overgrazing, users of the grasslands shall be required to reduce grazing and resow forage grass so as to restore vegetation.

因过量放牧造成草原沙化、退化、水土流失的，草原使用者应当调整放牧强度，补种牧草，恢复植被。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。