水土

Mining Subsidence ; Soil water interactions ; Super static pore pressure ; Thick aqueous soil layer.

开采沉陷；水土相互作用；超静孔隙水压力；厚松散含水层

China continues to lose arable land because of erosion and economic development.

中国继续失去耕地由于水土流失和经济发展。

Its subject coverage:General publications and general techniques ,Silviculture ,Forest mensuration and management ,Physical environment ,Fire ,Plant biology ,Genetics and breeding. Variation. Evolution,Mycology and Pathology ,Insects and other invertebrates ,Range,Game and wildlife,Protection forests. Watershed/catchment management. Soil conservation ,Other land use. Nature conservation. Arboriculture ,Dendrochronology and dendroclimatology .

期刊的主题范围为：普通出版物和技术，造林法，森林测定法和管理，自然环境，火灾，植物生物学，遗传学和培植，变异和进化，真菌学和病理学，昆虫和其他无脊椎动物，范围，竞赛和野生生物，林业保护，分水岭和集水岭管理，水土保持，其他的土地使用和自然保护。

In order to provide the visual information for synthetical management of water and soil conservation, this research hotlinks the attribute of terrain and vegetation to transportation area and sedimentation area through graph database、 erosion database and GIS.

为了给水土保持部门综合治理提供可视化信息，本研究通过建立图形数据库、侵蚀量数据库，借助地理信息系统（ArcView 3.2）将实际地形及植被等属性与侵蚀量的沉积区、搬移区域图形斑块进行热链接。

In commercial forest, no matter be arbor or cany arrowroot, have the reason of itself of a life certainly, because be gotten to natural environment and ground of sunshine do one's best, the 1000 appearance that just brought up them 100 condition.

在商业的丛林中，无论是乔木还是藤葛，都一定有一个生命它自己的理由，因为对于水土和阳光不遗余力地获取，才造就了它们的千姿百态。

In the dry land and garden plot, the soil eroding amount of terraced fields is only 1/3 of that be ploughed directly along the slope. It is difficult that assart along the contour in the dry land and garden plot, after the first 1~2 years, the soil eroding amount will increase at double. From the soil and water conservation point of view, the mode that integrates arbor, shrub and grass in woodland is the best, the mode that plants grass in bare land is the second.

等高作梯的旱耕地和园地土壤侵蚀量仅为顺坡直耕的早耕地和园地顺坡的1/3左右；早耕地、园地等高开垦的强度大，开垦之后1~2年土壤侵蚀量成倍增长；从水土保持角度看，林地乔、灌、草结合模式最好，裸地植草模式次之。

The trials on cultivation of Atriplex canescensconducted in Minqin Desert Control Experiment Station reveals that this speciesentails fine qualities as strong tolerance in drought, cold, salinity and low temperatureas well as high annual biomass. So it cab be extended in sandy areas with favorableirrigation condition, and on hilly in loess plateau with relatively high rainfall and lowevaporation. As a new substitute species for water/soil conservation and rangelandregeneration, it has a big potential to be extended. However, more research on withinwhich scope this species can be extended need to be done

从干旱沙区民勤治沙综合试验站的栽培来看，四翅滨藜在此地表现出了耐旱、耐寒、耐盐碱、耐低温且年生长量大的优良特性，因此可以在有灌溉条件的沙区和降雨较多且蒸发较小的黄土丘陵区进行推广，作为该地区的水土保持和草场更新的新物种，具有一定的推广潜力，但推广地域范围的划分，仍需进一步的试验研究和充分的科学论证。

Undoubtedly, ecomat mulch can not only control soil erosion, but accelerate revegetation in badland, hence, it can be extended in the similar projects and similar regions.

无疑生态垫既可有效地防止了水土流失，又可促进景观的绿化美化，因此可以在周边类似地区加以推广应用。

People plant trees on badlands in order to reduce missing land ande water.

人们在荒丘上种植了树木，以减少水土流失。

People grown many trees on the barron hillock in order to reduce lose water and soil .

人们在荒丘上种植了树木，以减少水土流失。

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。