查询词典 water conservation

With economic development, the rock material is widely applied in the water conservation、 resources mining、 the civil construction 、 the railway and so on, a lot of problem about rocks urgently is demanded to solve, so there are very important theory and realistic meanings to thoroughly research its nature、 concerning and destroying mechanism,Due to natural function, massive joint and crack with rock, though the scale of these is small, it changes mechanics nature of rock greatly and reduces deforms mould and intensity parameter, and makes it presenting aeolotropy .

随着我国经济建设的发展，岩石材料被广泛应用于水利、资源开采、土木建筑、铁路等领域，与此同时出现许多岩石方面迫切需要解决的问题，所以对其性质、本构关系、破坏机理的深入研究有重要的理论意义和现实意义。由于天然作用，岩石内部存在大量的节理和裂隙，虽然这些裂隙的规模不大，但裂隙的存在大大地改变了岩体的力学性质，使其变形模量及强度参数降低，且使岩体的力学性质呈各向异性。

Highway afforestment and soil and water conservation is a new problem of road afforestment.

高速公路的绿化和水土保持是公路绿化的新课题。

Soil and water loss in the gullied loess hilly region in northern Shaanxi attracts worldwide attention, where soiseasonable distribution of contour shrub belt is of significant soil and water conservation effect with runoff decrease of over 30%, sediment reduction of more than 50%, and it can also increase plant coverage of 15％ to 20% on slope farmland and forms shrub network on hill slope,and change the situation of ecological environment deterioration and sparse vegetation.

摘 要］陕北黄土丘陵区的水土流失问题举世瞩目，而坡耕地的水土流失尤为严重。资料表明，配置合理的等高灌木带具有较强的保持水土效益，其径流削减率在30%以上，泥沙削减率在50%以上，可增加坡耕地植被覆盖度15%～20％，在峁坡上能很快形成林网，大大改观坡耕地长期植被稀疏、生态环境恶化状况。

The air pressure changes and its influence under ponding infiltration are important to guide water saving irrigation and soil water conservation.

本文试图通过试验研究、理论推导两个方面，对非饱和渗透系数的确定及积水入渗过程中土中水—气运动规律进行较为全面、深入地研究。

Meets down is the engineering design, mainly carries on the land smooth and the irrigation and water conservation engineering design, and analyzes questions and so on project area water resources balance.

接下来是工程设计，主要进行土地平整和农田水利工程设计，并分析项目区水资源平衡等问题。

By the analysis of the dead leaves and branches and the holding water contents of five type standing forests—birch and larch mixed forest, larch planted forest, Chinese pine planted forest, birch natural forest and shrub forest in Wutai Mountain area, central Asia alpine region, the water conservation benefit among them was compared.

为了探讨不同林分水源涵养功能，为地域林业发展树种规划提供技术依据，该研究以中亚高山区五台山林区内五种不同类型林分为试材，调查分析了不同林分的枯落物及其持水量，比较了不同林分类型的涵养水源效益。

In order to effectively control soil and water loss of slope land smaller than 25° while not effect the grain production of local area, the function on soil and water conservation of mountain rice has been tested.

为有效地根治 2 5°以下缓坡耕地的水土流失又不影响当地的粮食生产，对旱稻的水土保持作用进行了试验研究。

The effects of subsoiling on water conservation and yield increase were affected by precipitation, well-proportioned rainfall was better to increase yield and water use efficiency.

保墒增产效果受降水量的影响，分布均匀的降雨有利于增产并提高水分利用效率。

The study of the effect of vegetation on snow ablation can be used to predict the snowline, glacier and water level. The snow ablation is observed in the Picea crassifolia, shrub, frost edge and grassland of sunny slope at the altitudes between 2600 and 2700m from 2003 to 2007. The daily variable of snow depth and the change of snow coverage and the sensible heat flux of snow surface are used to determine the snow ablation at Pailugou Basin of Water Conservation Forest in the Qilian Mountains. The observation began with the snowfall in October and ended at the completely ablation of snow in May, and got 1344000 observation data.

为研究祁连山植被对积雪消融的影响，利用人工调查积雪深度逐日变化量和积雪盖度变化，并结合空气雪面感热通量观测，对祁连山水源林生态站排露沟流域海拔2600~2700 m青海云杉林、灌丛林、林缘、阳坡草地在2003-2007年的积雪消融进行了研究，每年的观测从10月降雪开始到翌年5月积雪消融完结束，共获取数据134 400个。

Soil and water conservation monitoring in construction project is of great significance to soil and water loss control.

开发建设项目的水土保持监测工作对于防止新的水土流失具有十分重要的意义。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。