鹽堿低地 的英文怎麼說
中文拼音 [yánjiǎndīde]
鹽堿低地
英文
salt bottom-
In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。In areas which are prone to salinization - alkalization and water - logging, measures shall be taken to control and lower the groundwater level
在容易發生鹽堿化和漬害的地區，應當採取措施，控制和降低地下水的水位。To adopt well irrigation and well drainage, develop and utilize ground water resources of irrigated area can not only effectively reduce the ground water level and prevent secondary alkalization of the soil, but also provide timely irrigation to crops through well and canal complementary
摘要灌區灌溉採用井灌井排，開發利用地下水資源，不但能有效降低地下水位，防止土壤次生鹽堿化，還可以通過井渠互補，使農作物得到適時灌溉。Sediment in the lower yellow river irrigation is mainly treated with warping and improvement of saline - alkali soil, low and waste lands, which plays an important role in improving the ecological environment and developing the agricultural production in the areas by two banks of the lower yellow river
黃河下游引黃灌溉中的泥沙主要採取放淤改土、改造低洼鹽堿沙荒地，對黃河下游兩岸發展工農業生產、改善生態環境，起到了重要作用。Because of obstructing by impermeable wall, groundwater drainaged long time brings about immersion, whether or not this will result in a series of water surroundings problems, such as farmland salinization, marsh, lowering of ground temperature and so on, which are all focused on by government, resident, experts in engineering, hydrogeology, agriculture and surroundings
而是否會因為防滲墻的阻隔，地下水長時間得不到排泄而產生浸沒，造成農田鹽堿化、沼澤化和地溫降低等一系列水環境問題，均系堤防建設區各級政府、沿江居民和國內外部分工程及水文地質專家、農業與環境保護專家共同關心的話題。Systematic techniques for soil management in low land and waterlogging regions
吉林省西部低洼易澇鹽堿化耕地的分類管理技術研究Our 10000m2 plant located on shanghai jinshan district had established itself as a base for developing researching and manufacturing grc frp spua products, replicas of rockworks, trees, animals, our 10000m2 plant located on shanghai jinshan district had established itself as a base for developing researching and manufacturing grc frp spua products, replicas of light - weight rockworks, trees, animals, realistic and fantasys sculptures special effects etc
公司位於金山區，擁有佔地1000餘平米的工業廠房，是集生產，加工，實驗，藝術創新的產品源頭基地，主要產品囊括： grc （低堿度硫鋁酸鹽纖維水泥） frp （玻璃鋼） spua （聚脲）製作的輕體高模擬假山，樹木，動物。The cdna of subunit b was 1470 nucleotides long coding for 489 amino acids with a conservative atp binding site " 324 - sgsit - 328 " and a predicted molecular mass of 54. 29 kda. amino acid sequence alignment analysis suggested that the v - h + - atpase b subunit of s. salsa had high homology with other reported v - h + - atpase subunit b. the h + - atpase subunit h from s. salsa was a hydrophilic protein with 465 amino acids and a predicted molecular mass of 52. 8 kda, which was encoded by a cdna with 1398 nucleotides in orf. blast analysis indicated that the h + - atpase subunit h from s. salsa had a high amino acid sequence identity with those coming from plants, but had relatively low sequence identity with those coming from other species
鹽地堿蓬液泡膜h ~ + - atpaseb亞基是由1470個核苷酸編碼的長達489個氨基酸的多肽，分子量約54 . 29kda ，存在保守的atp結合序列「 324 - sgsit - 328 」 ，與其他物種來源的v - h ~ + - atpaseb亞基具有較高的氨基酸序列相似性； h亞基為親水多肽，開放閱讀框長達1398 - bp ，編碼465個氨基酸殘基，分子量約52 . 8kda ，與植物來源的液泡膜h ~ + - atpaseh亞基具有較高的氨基酸序列相似性，而與其他物種來源的v - h ~ + - atpaseh亞基同源性較低； c亞基開放閱讀框為495 - bp ，編碼164個氨基酸殘基，分子量約16 . 6kda ，為一跨膜多肽，存在四個可能的跨膜區。( 3 ) because of being influenced by human beings so strongly, the shapes of forestland and resident land ' s patch appeared regular ; on the contrary, grassland with low coverage and saline was slightly influence by human beings, so the forms were complex and irregular
（ 3 ）林地和居民地是受人類活動強烈干擾和管理的景觀，其形狀規則、簡單。低覆蓋度草地和鹽堿地景觀的斑塊形狀復雜，受人類管理活動的影響小。In the past 20 years, different landscape types had no obvious change in scales of landscape patch - size. in farmland, grassland with high coverage, grassland with middle coverage, grassland with low coverage, saline and unused area the larger patch was dominant. otherwise the smaller patch was dominant in forestland and waters
20年間，各景觀類型的等級構成沒有發生明顯變化：耕地、高覆蓋度草地、中覆蓋度草地、低覆蓋度草地、鹽堿地和未利用地以面積較大的斑塊占優勢，林地和水域以面積較小的斑塊占優勢，居民地斑塊多分佈於中間類型的等級中。分享友人