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water and soil相关的网络例句

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与 water and soil 相关的网络例句 [注:此内容来源于网络,仅供参考]

In the two test sites, the soil water movement numerical models of vertical-one-dimension and cross section two-dimension have been established with the softwarer Vadose/W and self-programming code, of which the advantage is that it can deals with lower boundary and the upper boundary (such as meteorologic, vegetational, etc) conditions in convenience. The fitting between the model and observation data from sites indicates that the models are relatively high precision. So the models can be used to study problems such as soil evaporation, infiltration to recharge groundwater and so on under various conditions.

运用包气带水分运移软件Vadose/W和自编程序,建立了两个试验场垂向一维和剖面二维土壤水运移模型,该模型的优势在于可灵活地处理下边界和上边界条件,试验场观测数据拟合表明模型精度较高,可用于研究各种条件下土壤蒸发、土壤水分下渗补给地下水等问题。

In this region there are 14.90millions m 3 agriculture water resources that is 93.35percent of the tote water resources, and there are 6.53 millions m 3 soil water resources that is an important source of recovering and developing ecosystem and agriculture production such as dry-planters, meadows, woodless etc...

其中土壤水资源为6 35亿m3 ,是这一区域旱作农业、草地、林地等农业生产和生态恢复与建设的重要来源。依据该区域水资源现状及开发利用中存在的问题,提出了农业水资源可持续利用的若干对策。

From this movie, I see many mobile and artificial look for land, jump a claim fresh water realm, usually infringe upon those luckily survive come down of mankind, because at there is a little girl in these people and have a huge secret on her body-----There is a tatoo on her body, that is to lead to terrestrial map so those mobile talented persons come to and attackstone them, having soil then can become the fresh water to the sea water evolution......

从这一部电影中,我看见许多机动人为了寻找陆地,霸占淡水领域,经常去侵犯那些幸存下来的人类,因为在这群人里有一个小女孩,在她的身上有着巨大的秘密-----她的身上有一个刺青,那是通往陆地的地图所以那些机动人才来攻击他们,有了土才能把海水进化成淡水。。。。。。

As compared with the traditional irrigation-traditional fertilization, the following results of the improved optimized irrigation-optimized fertilization were obtained: significantly higher nitrogen use efficiency; the like tiller number per unit area, percentage of the tiller ear number/the tiller number, the ear number per unit area, the greatly reduced grain number per ear, and significantly heavier weight of 1, 000 grains; a trifle taller plants; shorter base internode length, a bit more weight per unit internode length, longer internode length under ear; almost the same LAI values in middle and later stages; coincident process of dry matter accumulation from straight growth onwards, a little more dry matter accumulation amount from earing to maturity; a little longer flag leaf, 2〓 leaf, 3〓 leaf (but the three leaves were shorter than those of the optimized irrigation-traditional fertilization) and shorter 4〓 leaf from top, a bit reduced total area of these leaves; almost the same leaf thickness, mean canopy leaf tilt angle, light extinction coefficient , ratio of light penetration in the upper, middle and lower parts of the wheat canopy, and fair plant type; almost the same senescence process of flag leaf; and increased root amount in 0-120cm soil layer and smaller rate of progressive decrease of the root length density and root weight density with soil getting deep, which can strengthen the resistance to adverse conditions such as water stress in the later stage.

在优化水肥条件下,冬小麦总分蘖数、成穗率及单位面积穗数与传统水肥比较接近,但穗粒数显著减少,千粒重显著提高;株高稍有增加;基部节间长度缩短,充实度略微增高,穗下节间增长;中后期LAI与传统水肥的LAI值基本吻合;起身至成熟干物质积累量动态变化过程与传统水肥十分接近,但抽穗至成熟所形成的干物质量增加;上三叶变长(但上三叶长度增加幅度小于优化灌溉-传统施肥处理),倒4叶变短,总叶面积略有减少;叶片厚度、冠层平均叶倾角、消光系数、冠层各层的透光率与传统水肥差异很小,株型较好;旗叶叶绿素含量动态变化与传统水肥十分接近;0-120cm土层的总根量明显增加,上层根群和深层根群的差异最小,有利于提高小麦后期的抗逆力。

The relationships between surface-water depth and distance from water inlet are fitted by a nonlinear least-square method,and then,based on the principle of water balance a linear regression method is proposed for estimating the soil infiltration parameters of border irrigation.

将畦灌地表水深与离畦首的距离之间的关系按指数函数进行非线性最小二乘拟合,并根据水量平衡原理提出了估算土壤入渗参数的线性回归法,避开了难以定值的地表储水形状系数。

In addition, the paper also introduced bad influences of tourism development on ecosystem and landscape, such as partial breakage of vegetation, soil erosion and the changes of soil chemical and physical properties, the decrease of wild animals, the increase of bacteria, dust and exhaust gas in the air and water pollution.

还介绍了旅游对牛态系统组成和景观的负面影响研究,如旅游对植被的局部性破坏,造成土壤侵蚀和婵化性质的变化,减少野生动物的数量,增加空气中细菌、灰尘和废气的含量,造成水体污染等。

The seismic disasters features and behavior mechanisms of the buriedwater supply pipeline are analyzed by synthesis and the breakage of thepipe joints caused by seismic wave propagation as main disasters mode isled into. The soil-pipe interaction, and the soil-pipe slippage arediscussed. Statistical experience method resulted from earthquakeinvestigations and theoretical methods based on reliability theory areintroduced. The reliability of buried pipeline is researched. The methodfor estimate connective reliability of network by means of Monte Carlesimulation technique and Breadth First Search method is introduced. Theconnective reliability of water supply pipe network is researched.

本文综合分析了地下供水管道的地震破坏特征和反应机理,引入了以接头破坏作为主要的破坏模式,并探讨了管土间的相互作用和滑移作用等问题;介绍了根据震害调查数据回归的统计经验法和基于可靠性理论的理论分析法,对地下管道的可靠性进行了研究;介绍了利用蒙特卡罗法和网络图论中的广度优先搜索法判定网络连通可靠度的方法,对供水管网的连通可靠性进行了研究;考虑到震害预测方法中的许多参数是随时间变化的,应用灰色理论和概率论,建立了基于GIS 的供水管网动态震害预测模型。

The results showed that the soil water contents of sand, A. ordosica and C. korshinskii vegetation in lysimeters all increase due to bitumen felt cover, especially of the CK. The canopy, new branch length and leaf area index also grow in experimental period. But the CK consumes a little water because the neutron probecan t detect the water in gravel layer.

结果表明蒸渗池表面自油毡覆盖至试验结束,油蒿、柠条和流沙处理0~150cm土层土壤含水量都增加,尤其流沙处理土壤含水量上升最明显;油蒿与柠条的冠幅、新梢长和叶面积指数均增加;由于中子仪探测不到蒸渗池底部40cm厚的砾石层的水分,导致了对照流沙处理测定结果不合常规。

The study was conducted in the field to have a survey of the degradation of films and examine the effect of degradable films on crop by comparing it with the uncovered plots and polyethylene films. And the laboratory experiment on the effect of different soil moistures (air-dried, 0.10 g/g, 0.15 g/g, 0.20 g/g, 0.25 g/g, 0.30 g/g) and temperatures (5℃、 15℃、 25℃、 35℃、 45℃) on degradable ratio and content of films was studied. The conclusions were as follows:(1)The film can be degradable at every treatment but its degradation was best when the temperature and water content in soil was 35℃ and

本试验统计观察了降解膜的田间降解状况,比较了它与裸地、普通膜对作物的覆盖效果,在室内研究了在不同土壤水分(风干土、0.10g/g、0.15g/g、0.20g/g、0.25g/g、0.30g/g)和温度(5℃、15℃、25℃、35℃、45℃)下,膜降解率、土壤微生物量碳等的变化情况,获得的主要结论如下:(1)地膜在各处理下都发生降解,但温度为35℃和水分为0.25g/g时地膜降解最快,程度最深。

Although forest canopy layer could prevent splash erosion effectively, clay was taken away by overland flow and run off easily, the erosion amount became less after removing the forest canopy and surface soil, while the splash erosion still produced in the surface layer; the splash function weakened after having water current, the starting particles were less than bareland, so removing the surface disturbed soil made the erosion amount and clay less, silty sand more than bareland, but unsteady, the wear and tear energy used by raindrop splash and current function for overcoming sediments separating and starting were comparatively large, sediments were very difficult to be started and transported, it explained that forest root systems could increase anti-erosion capability of forest vegetation, make rainfall-current system splash and export finer particles than bareland.

虽然林冠层能有效防止溅蚀的发生,但坡面流还是能带走粘粒部分,粘粒还是容易流失。去除林冠和表层土后,侵蚀量变得更少,但表层还是会被溅蚀,有水流后,溅蚀作用减弱,颗粒起动的比裸地的少,所以,去除表层扰动土后,侵蚀量更少,粉沙多,粘粒比裸地更少一些,但不稳定,雨滴击溅和水流作用用于克服泥沙分离起动损耗的能量较大,很难被起动输移,这说明森林植被根系的作用增加了林地植被的抗蚀力,使降雨一水流系统仅能溅起输出比裸地坡面更细小的泥沙颗粒。

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