alkali in the soil 中文意思是什麼
alkali in the soil
解釋
鹵質-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。 -
The application and effect of ardealite in improving the alkali soil
分子標記技術在果樹上的應用 -
The effect on phosphorous nutrition in alkali soil by different ameliorative ways
不同改良方法對鹽堿土壤磷素營養的影響 -
The application and effect of desulphurized waste of flue gas in improving alkali soil
煙氣脫硫廢棄物在堿化土壤改良中的應用及效果 -
Distribution, formation and characteristics of the saline - alkalized land in northeast china was systematically analyzed and agro - biological measures for management of saline - alkalized soil were illustrated, including cultivation of rice to wash down salts, cultivation practices, soil building practices, plantation of salt - tolerant plants and biological removal of alkali, etc. in the paper
特殊的氣候、地形和水文地質等自然因素以及人類不合理的農業技術措施和社會生產活動等人為因素加劇了該區鹽堿化發生、分佈與演變。 -
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。 -
It was difficult for upland crops to grow on the saline - alkali soil in the coastal plain and liaohe river regions
在沿海平原和遼河流域鹽堿土上很難種植旱地作物。 -
A preliminary study on chemical reaction in the process of improvement of alkali - affected soil
石膏改良堿化土壤中所發生的化學反應的初步研究 -
Planting of trees for landscape greening on alkali - saline soil in the beach phoenix piazza
濱海鳳凰廣場園林綠化工程的實踐與探索 -
The results of the 2 - year field experiments of reducing chemical n fertilizer application in rice growth and the 1 - year demonstration and extension on a rather of large - area showed that appropriately selecting various ways of reducing chemical n fertilizer application according to different contents of alkali - hydrolysable n in soil could decrease the application amount by 15 % ~ 20 % and maintain the current rice yield per unit area
摘要通過2年水稻化學氮肥減量施用田間試驗及1年較大面積的推廣示範研究，結果表明：崇明常年高氮水平下的水稻栽培區，降低氮肥用量可以通過土壤高、中、低堿解n含量水平，以維持現有水稻單產為原則，針對性地選取減氮途徑進行減量， 2年結果可比習慣施肥減氮15 % ~ 20 % 。 -
In this paper, dea model, which is constructed for appraising the advance of science & technology of hydraulic conservancy, chooses 30 provinces ( municipalities, autonomous regions ) as decision unit, capital construction investment as input index, flood control, irrigation, waterlogging prevention, alkali harnessing, water and soil conservation, water supply in cities, hydropower, drinking water for people and livestock as output index
本文構建的水利科技進步評價的dea模型，以全國30個省、市、自治區為決策單元，以基本建設投資為輸入指標，以防洪、灌溉、除澇、治堿、水土保持、城市供水、水電、人畜飲水等為輸出指標。 -
The dynamics of soil seed banks and seed movement was investigated in three bare alkali - saline patches in songnen grassland, northeast china, for exploring their potential role in the vegetation restoration of bare alkali - saline patches
摘要在松嫩平原不同退化程度的草地中選取三個次生光堿斑，通過分析其土壤種子庫和表面種子流動態，探討了土壤表面種子流在次生光堿斑植被恢復中的潛在作用。 -
The study reveals that the infected soil is of high ph value and low effective iron content and the afore - said infected trees and plants suffer from a deficiency of iron for their normal growth, as the alkali soil is lack of effective iron, and the insufficiency in turn weakens the rhizome of the trees to absorb iron effectively and impedes the movement of iron along the trunk and branches
結果表明：舟山市朱家尖苗木基地紅楠黃化是由於基地土壤呈堿性，致使土壤中缺少有效態鐵，影響了根系對鐵的吸收和鐵在樹體內的移動及有效性，不能滿足紅楠正常生長對鐵的需要而引起的缺綠黃化癥。 -
In this research project, the agrobacterium tumefaciens mediated transformation of badh gene of tetraploid black locust has been studied, for the purpose of improving resistance to soline - alkali and drought of tetraploid black locust ; of playing more important role in developing of waste lands, ameliorating of soline - alkali soil, and greening and beautifying of surface - mined lands, mine waste dumps, slopes of roads and railroads where restoration of vegetative cover has proven difficult ; of fully making benefits of its ability to fix atmospheric nitrogen in the soil
為了進一步提高四倍體刺槐的耐鹽性和抗旱性，進一步擴大其適宜種植的生態范圍，充分發揮其固氮、改良土壤的特性，在我國的城鎮綠化、荒山造林、鹽堿地改良以及采礦跡地、公路、鐵路邊坡等植物生長困難土地的植被恢復中發揮其優勢，本實驗對四倍體刺槐進行了農桿菌介導的甜菜堿醛脫氫酶基因轉化的研究。 -
Vegetation restoration also resulted in the changes of soil physical and chemical properties, i. e., the contents of organic matter, alkali - hydro nitrogen, rapidly - available potassium and the contents of fine sand, very fine sand and clay were increased significantly, while ph and the content of rapidly - available phosphorus were decreased
植被的恢復使土壤理化性質發生了變化，與恢復前相比土壤中有機質、堿解氮、速效鉀以及細砂、極細砂、粉砂、粘粒含量顯著增加， ph值和速效磷含量降低。 -
It is suggested that seed movement would be the potential seed source and play a potentially important role in the process of vegetation restoration of bare alkali - saline patches by enhancing the soil retaining capacity to seed movement
因此，表面種子流是潛在的種子資源，提高次生光鹼斑對種子的截留能力（人工處理方式） ，將加速次生光鹼斑的植被恢復進程。 -
Study on the feature of saline alkali soil particle fractal dimension in songnen plain and the application
松嫩平原鹽堿地土壤顆粒分形維數研究及其應用 -
The soil organic content in the topsoil decreased with increase of artificial forest age. because the total n and alkali - hytrolyzable n were from mineralization of soil organic matter, their content in the artificial forest decreased with the decrease of soil organic matter
在土壤化學性質方面，各林地土壤有機質含量表層大於底層，人工雲杉林土壤表層有機質含量隨著撫育林齡的增加而降低，土壤中全氮、堿解速效氮主要來源於土壤中有機質的礦化，其含量隨有機質的減少而降低。 -
A causal diagnosis is conducted on the yellows of machilus thunbergii by means of the soil - plant chemical analysis, enzyme diagnosis, and field experiments, which grow in the saline - alkali soil at zhujiajian nursery stock base
摘要採用土壤植物化學分析、酶學診斷和田間試驗對舟山市朱家尖苗木基地鹽堿地土壤紅楠黃化成因進行了研究。 -
In order to instruct the afforestation in daqing city and saline - alkali land park of the no. 7 oil production company, growth conditions of afforestation trees in 131 soil point with different soil soluble salt of 0. 1 % ~ 0. 3 %, 0. 3 % ~ 0. 5 %, 0. 5 % ~ 0. 7 % and > 0. 7 % were investigated and analyzed based on chemical properties mensuration of the plan land soil in different surface layer and referred to different stalt - resistance upper limit of trees
摘要為更好地指導大慶市及採油七廠公園鹽堿地的綠化，在規劃地土壤表層化學性質測定的基礎上，參照不同樹木耐鹽能力上限，分別對全鹽量在0 . 1 % ~ 0 . 3 % 、 0 . 3 % ~ 0 . 5 % 、 0 . 5 % ~ 0 . 7 % 、 > 0 . 7 %的131個樣點上綠化樹種的生長狀況進行了調查及分析，並進而給出了樹種選擇及綠化工作的建議。
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