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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]

Applying experiments of performance test, indoor soil training test under different field capacity and spring rape pot, a study was made on nutrient release and biological effect of water-soluble felted and coated fertilizer. The results showed that this kind of water-soluble coated material was characterized as its compact contexture, uniform thickness, fine performance of water absorption and permeability and certain degree of biodegradability.

应用性能测试、不同田间持水量下土壤培养及小白菜盆栽试验研究了其养分释放规律与生物学效应,试验表明:微水溶性包膜材料致密、整体厚薄较均一,其吸水性、透水性能优良,且具一定的生物降解性能。

Since its inception 96 years, with a strong engineering and technical strength and excellent quality management, to become well-known enterprises, Dongguan City, in the various regions of the country enjoys a high reputation, the company introduced advanced foreign technology mass production of the wholesale carved sludge, cloud art card carving sludge, color sludge, rubber mud, clay, Fimo clay, anti cement, mold clay, sculpture work, oven, press mud machine, Fimo design and production, AB water, PU resin, unsaturated resin, a variety of silicone oil, the Japanese Shin-Etsu KF-96, 2-methyl silicone oil , Emulsified silicone oil , Silica gel, silicone, food defoamer, students with rubber mud, palm clay, color clay, carved clay, epoxy AB glue, green red gum, Crystal, head knot soil, Fimo clay, plastic raw materials button , water-soluble silicone oil, silicone oil emulsion, Shin-Etsu potassium-based high-temperature silicone oil and all kinds of silicone oil, Poly water, accelerator, light powder, hardening agent, caustic soda, caustic soda, titanium dioxide, bar-mode band, skim gauze, Wen Zhangbu, trimming needles, repair embryo gun oil, gun repair embryo, glass fibers, fiber cloth, hot sol, paint extinction powder, oil dry cleaners, petroleum jelly, ceramic mold release agent, green red gum, potassium soap, silicon oil, silicone, mold rubber, silicone Recycling of waste silicone resin, ceramic ...

公司自96年成立以来,以强大的工程技术实力和优良的品质管理,成为东莞市知名企业,在全国各地区享有极高的声誉,公司引进国外先进技术大量生产批发精雕油泥,云艺牌精雕油泥,彩色油泥,橡皮泥,胶泥,软陶泥,防水泥,模具泥,雕塑工作,烤箱,压泥机,软陶设计与制作,AB水,PU树脂,不饱合树脂,各种硅油,日本信越KF-96、二甲基硅油,乳化硅油,硅胶,矽利康,食品消泡剂、学生用橡皮泥、手板泥、彩色油泥、精雕泥、环氧AB胶,青红胶,水晶胶,目结土、软陶泥、按键胶原料、水溶性硅油、乳化硅油、日本信越钾基耐高温硅油及各种硅油、波丽水、促进剂、轻粉、硬化剂、片碱、烧碱、钛白粉、扎模带、脱脂纱布、蚊帐布、修边针、修胚枪油、修胚枪、玻璃纤维,纤维布、热溶胶、油漆消光粉、油污干洗剂、凡士林、陶瓷脱模剂、青红胶、钾肥皂、矽油、矽胶、模具胶、矽利康、回收废硅胶。。。

The results were as follows: under light or medium water stress, the changes of RWC, Pro, RCC, MDA and SOD were similar, membrane penetration and membrane lipid peroxidation aggravated, osmotic modulation ability and enzyme protection system strengthened; physiological modulation ability declined under severe water stress. Almonds subjected to drought in the condition of below 3.77% soil water content. Altogether Fritz and Nonpareil both had stronger resistant drought adaptation.

结果表明,在受到轻度和中度胁迫过程中,扁桃幼苗叶片的Pro、RCC、MDA以及SOD都出现相似变化趋势,细胞膜透性和膜脂过氧化程度逐渐加剧,渗透调节能力和酶保护系统增强;在重度胁迫时,其生理调节能力下降,当达到土壤含水量3.77%以下的重度胁迫时,就会受到旱害;总体而言,两个供试品种扶兹和那普瑞尔都具有较强的抗旱适应性。

During the infiltration process of indirect subsurface drip irrigation, the ponded water depth changed from zero to a constant and accelerated the water movement in the vertical direction, which reduced the discrepancy of wetted distance in lateral direction and vertical direction, while the changed water depth had small influence on the wetting front movement in vertical direction to upward and downward. The shape of wetted soil zone was spheroid, and its symmetry axis lied near the bottom of the water conducting device.

间接地下滴灌灌水过程中,从零开始逐渐增大并趋于稳定的积水深度加速了水分在垂直方向的运移,缩小了横向湿润距离和垂向湿润距离之间的差异,但变化的积水深度对湿润锋在垂直方向向上和向下的运移速率影响不大,使湿润体形状表现为扁率不断减小的椭球体,且椭球体对称轴分布在靠近导水装置底部的位置。

The measurement of ponded water infiltration,saturated hydraulic conductivity,water holding capacity,soil bulk density of different treatments of PAM show,①the velocity of ponded water infiltration and saturated hydraulic conductivity are both reduced;②water holding capacity is improved but ...

结果发现,各种处理土样与对照相比,①积水入渗速率和饱和导水率值都有所降低。②各处理土样的蓄水能力增强,保水能力未见提高。③土壤容重有一定程度的降低。④以上各种趋势随PAM施用量的增大而增强。

At first, reviews the present studying situation about water pollution control, soil and water loss control, ecological compensation, land and water resources reasonable utilization and management model and land and water resources planning and management model of headwaters in home and abroad.

对国内外水源涵养区内水污染及水土流失防治、生态补偿、水土资源合理利用与管理模式及规划与管理模型等方面研究进行了回顾,并对其有关的理论和实践方面以及研究特点进行了概括与分析,同时指出了当前我国研究中存在的问题,最后对有待于进一步研究的问题进行了展望。

From the water pressure test and the collapsing examples, the thesis analysis the force expression of Karst collapse in water table dropping down, and presents that the additional stress from water table descending in overlying soil layer and rock, which is equal to approximately the descending depth of water table, which can be applied to about ten meters descending depth.

针对地下水位波动引发的岩溶塌陷进行了专门性研究。通过试验文章指出了岩溶区地下水位受迫下降至基岩面以下时的力学效应为:附加力在一定范围内,与在基岩面以上一样,等于水位下降的幅度值,并与盖层下基岩中洞穴的形态及体积无关。

With methods of limited areas, root systems of plant individuals were limited in a specific range, providing definite spatial boundary and solid basis for calculation of water requirement needed by plant individuals. On the basis of calculation of amount of water requirement, areas needed by every species to ensure enough water requirement are as follows: Populus simonii is 80.3m〓, Ulmus macrocarpa is 35. 4m〓, Artemisia halodendron is 7. 0m〓, Salix gordejvii is 11. 2m〓. Prunus armeniaca is 15. 2m〓, and Caragana microphylla is 15. 6m〓. The corresponding rational density of plantation which can maintain soil water balance and can ensure plantation stability is 125 individuals/ha for Populus simonii, 285 individuals/ha for Ulmus macrocarpa, 625 individuals/ha for Prunus armeniaca, 625 individuals/ha for Caragana microphylla, 833 individuals/ha for Salix gordejvii, and 1428 individuals/ha for Artemisia halodendron, respectively.

运用有限面积法将植物根系限制在明确的边界内,为植物耗水量的计算提供了一个明确的空间边界范围和可靠的基础,探索性和尝试性地得出了近似野外真实状态下植物个体的耗水量,以此为基础计算得出小叶锦鸡儿、山杏、黄柳、差巴嘎蒿、榆树、杨树等树种的水分营养面积分别是15.6m〓、15.2m〓、11.2m〓、7.0m〓、35.4m〓和80.3m〓,与此对应的能够维持林地土壤水分平衡和林分稳定性的各树种人工林的合理密度为:杨树125株/公顷,榆树285株/公顷,杏树625株/公顷,小叶锦鸡儿625株/公顷,黄柳833株/公顷,差巴嘎蒿1428株/公顷。

This paper has made systematic research about characteristics of soil water dynamic changes, water deficit of the root-zone of pear-jujube tree with regulated deficit irrigation, physiological control in the process of the water use and the stomal response mechanism of pear-jujube tree under the water deficit environment, and the effects of different deficit irrigation levels at different growth stages vegetative growth and repproductive growth of pear-jujube trees, and also its regulation mechanism.

针对西北半干旱区果业生产面临水资源紧缺的现实,论文以该区特色经济果树梨枣树为研究对象,在西北农林科技大学旱区农业水土工程教育部重点实验室、陕西省大荔县城关镇梨枣园分别开展了温室与大田试验,对调亏灌溉的梨枣树根区土壤水分动态变化特征、水分亏缺与复水环境下梨枣树用水过程、生理调控与气孔响应机理、不同生育期不同水平亏水处理对营养生长与生殖生长的影响及其调控机制等进行了较系统的研究,分析了各生育期不同亏水处理对梨枣耗水规律、产量、品质、作物系数、水分利用效率及经济效益的影响,取得了以下成果:⑴通过亏水处理与复。。。

First, by the allocation of irrigation water directly into the ditch outlet Xiaqi, achieve no water loss, greatly improve the utilization of water; are two irrigation systems, replace the pipe with water furrow, not square, and the right to re-use, reducing the irrigation investment; Three is the use of the gate with the outlet opening to adjust a constant and accurate control of flow into the trench plot, for different soil and different groove specifications Xiaqi can greatly improve irrigation uniformity; four gates are porous pipe irrigation system for the flow tubes, and the blind to cross the flow tube as compared to the wall can reduce the work under stress, and reduce the damage to the opportunity to prolong the service life of thin-walled tube; are five gates to facilitate the installation of irrigation systems, pipes, and, upon request, to fight孔安outlet assembly to ensure the accuracy of positioning with the outlet.

一是灌溉水经配水口直接进入沟畦,实现无输水损失,极大地提高了水的利用率;二是管灌溉系统代替配水垄沟,不占地,且右重复使用,降低了灌溉投资;三是利用配水口的闸板开度来调节准确恒定地控制进入沟畦的流量,适用于不同土质和规格不同的沟畦,可大大提高灌水均匀度;四是闸管灌溉系统为多孔出流管,与等过流量的盲管相比,可降低管壁承受的工作压力,并减少受损机会,从而延长薄壁管的使用寿命;五是闸管灌溉系统安装方便,并可根据要求打孔安装配水口,确保配水口定位的准确性。

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