水土

Based on the performances of different varieties, it is considered that the Guangxi landrace, African landrace, Myanmar landrace and ICPL87119 adapted to Karsts stone mountain areas and hilly lands, and could be used for feed, water and soil conservation and ecological protection, firewood forest and so on.

根据不同品种的表现：广西品种、非洲品种、缅甸品种I、CPL87119比较适应喀斯特石山区荒地、山地种植，可作为饲料、水土保持、生态保护、薪炭林等用途，ICPH8、IC-PL87091可作蔬菜和粮食用，其中ICPL87091是一个比较有希望的品种。

The characters of karsts soil are four:(1) soil layer is thin and the soil is barren;(2) the soil is not continuously distribution and separated by the stone-teeth;(3) water and soil resources are separated;(4) slopping field is more, the flat is few.

岩溶区土壤资源的特征是：①成土速率慢，土层薄，土壤贫瘠；②土被不连续，多被石芽所间隔；③水土资源分离；④坡地多、平地少。

As a result silver chai n forest land has a better capacity in soil and water conservation than naked l and. It can reduce surface runoff than naked land when rainfall changes around 3 0mm. In 2000, 179.42 g/m~2 soil were lossed in silver chain forest land, 980.1 g/m~2 in naked land on the contrary.

结果表明，与裸地相比刺槐林有很好的水土保持作用，能明显地减少地表径流和泥沙侵蚀。3 0 mm左右降雨量，有林地减少地表径流的能力是无林地的 3倍以上。2 0 0 0年径流观测场有林地土壤流失量为 179.4 2 g/ m2 ，无林地土壤流失量为

People turn up one side,It is not accidental for Rugao to be the sole Land of Longevity in the world plain area.

一方水土养育一方人，如皋成为全世界唯一的平原长寿之乡绝非偶然。

There was no significant soil and water loss differences in equivalent peanut land between sole peanut and alley cropping systems. There were also 146-172mm surface runoff and 6503-7571kg ha〓 soil losses annually in alley cropping systems.

就可比花生种植面积而言，花生南酸枣间作方式下水土流失量与传统花生种植方式下没有显著差别，年地表径流和土壤流失量仍然分别高达146～172mm和6503-7571kg ha〓。

Water and soil loss is an important landforms evolution course.

水土流失其实是一种主要的侵蚀地貌演化过程。

They help reduce runoff and, from a distance, cause the building to mirror the hilly landscape of the city around it.

这些花草不仅防止水土流失，而且从远处看，使得这座建筑成了环绕着这座城市的山地景观缩影。

Moreover, open-cut mining had lead to serious losses of water and soil through desertification.

而且，露天采矿更直接导致了水土的严重流失和土壤荒漠化。

General layout: General idea should focus on protecting urban water sources, restoring riverways, wetlands and groundwater, improving the water body function, strengthening water resources allocation and water function regions management. Based on existing water project structures, the generallayout follows as that urban water sources conservation on the upriver, wetland and groundwater restoration on mid-river and coastal wetland and estuarine eco-area restoration on the downriver, achieve the target that rivers and lakes 'connection, green bank, clean water, flowing river', then form aquaticecosystem protection and guarantee system.

以保护城市水源地为重点，以修复河道湿地、地下水和改善水体功能为核心，以强化水资源配置和水功能区管理为关键，基于现有的水利工程体系，在流域上游建立以城市饮用水水源地为主体的生态保护屏障，在流域中游建设以湖泊为点、河道为线、地下水为面的水生态修复系统，在流域下游构建以滨海湿地和入海河口为中心的生态恢复区，遏制水土流失，增强水源涵养，保护水功能区，实现河、湖&连通、绿岸、清水、流水&，进而形成防控结合的水生态环境保护与修复保障体系。

Healthy, forested watersheds, for instance, help filter drinking water and prevent soil erosion into rivers.

例如，健康的、森林覆盖的流域有助于过滤饮用水、并防止水土流失。

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。