耕作動力學 的英文怎麼說
中文拼音 [gēngzuòdònglìxué]
耕作動力學
英文
tillage dynamics-
This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model
本研究立足於生態區域法的基本思路，採用系統設計的思想，通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合，宏觀與微觀、定性與定量、理論與實證研究等相結合的方法，運用統計分析、模型模擬等技術手段，在大量調研基礎上，針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題，以北京市順義區為典例，從土地利用現狀與動態、驅動力、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究，獲得如下研究結果： （ 1 ） 2002年順義區的土地利用仍以農業用地為主，耕地、園地、林地和牧草地之和占總土地面積的56 ，農用地中糧食作物仍佔43 。Aerodynamic roughness of cultivated soil and its influence on soil erosion by wind in a wind tunnel
耕作土壤表面的空氣動力學粗糙度及其對土壤風蝕的影響Adopting the actual county - grade database of land use firstly founded in china, combining with the comprehensive influential factors of land use change, using the correlative statistic software and the mathematic analytical methods ( principal component analysis, gray relating analysis, multivariate time series markov chain analysis, multivariate regression analysis, gm ( 1, 1 ) gray model, gray series gm ( 1, n ) model methods etc ), this paper analyses the dynamic change of land use and driving force in jiang ' an county qualitatively and quantitatively. the results indicate : 1 the land resource per capita and the area of single - land - use type in jiang ' an county are not prior to other places in yibing city or sichuan province. however, the terrain is dominant in choosing the way of land use
本文採用全國首批建立的「縣級土地利用現狀數據庫」的基礎數據，結合影響土地利用變化的經濟、社會、環境等綜合因素，採用相關分析軟體（ dps 、 spss ）和數學分析方法（主成分分析、灰色關聯度分析、多元回歸分析、多元時空序列馬爾柯夫鏈分析、 gm （ 1 ， 1 ）預測模型分析、灰色序列gm （ 1 ， n ）模型分析等方法） ，對江安縣土地利用變化及其驅動力進行定性、定量研究，研究結果表明： 1江安縣人均總的土地資源數量和單一土地利用類型的數量在宜賓或四川省區域內均無優勢；地形對土地利用方式的選擇起著主導作用；土地利用變化的總趨勢是：耕地、林地、交通用地和水域面積不斷減少，居民點及工礦用地和未利用地面積不斷增加；景觀多樣性指數呈現「 」趨勢。4 a new blade has been developed and its parameters have been studied in detail. 5 a new no - tillage planter 2bmyw - 2 is made and more than 110mu fields in herbei province are planted using it. the production experiments shown that the rate of clearing rootstalks away from seed beds is more than 92 % and disturbed soil is from 20 % to 27 % and the working performance of the sample machine is excellent
（ 5 ）製作出2bmyw - 2型切挖式玉米免耕播種機一臺，在河北豐寧和學校農場進行了110多畝的免耕播種試驗，結果表明：該機對播種帶的玉米根茬清除率達92以上，種床基本無玉米根茬，破茬能力強、清茬效果較好，動土量少，表土破土量約佔20 27 。The teaching research of our predecessors promoted the development of our education. today, while carrying on and criticizing the traditional teaching mode, we set up a new teaching mode, whose purpose is not a guarantee to cure all diseases, but to beak the old teaching ideas, pour vigor into the classroom teaching. thereby, he offers a few commonplace remarks by way of introduction so that others may come up with valuable opinions, arouse the teachers " enthusiasm, corpus and creativity to work hard in this field, implement the quality education overall, foster the students " creative spirit and prac
教學有法，但無定法，前人的教育教學研究，推動了教育的大踏步發展，今天，我們在對傳統的教學模式進行批判繼承時，構建起一個新的教學模式，目的不是把它當作一個包治百病的處方，為的是打破陳舊的教學觀念，給僵化的課堂教學注入一絲活水，從而起到拋磚引玉的作用，把廣大思想政治課教師的教學積極性、主動性、創造性充分調動起來，在政治課教學這所百花園里辛勤耕耘，為全面貫徹實施素質教育，不斷培養學生的創新精神和實踐能力，促進學生個性發展，獲得終身學習能力，做出應有的貢獻First, by the relevant theories of economy growth and economics of development, expound and prove that agricultural sustainable growth is essential condition of asd from beginning to end, set up the theory model to appaise agricultural sustainable growth pattern. the empirical analyzing conclusion of agriculture sustainable growth in the mid and west region is that the increase of rural labor force has n ' t direct effect on the agriculture economic growth, the change of cultivated land surface area and crops sowing surface area has n ' t direct relevance with the change of total output value in farming, forestry, animal husbandry and fishery
首先從經濟增長理論與發展經濟學理論的有關原理及其演變，論證了農業經濟增長始終是農業可持續發展的必要條件的論點，並構建了農業可持續性增長方式評價的理論模型。對中西部地區農業可持續性增長的實證分析結論是，農村勞動力增長對農業經濟增長沒有直接影響；耕地面積與農作物播種面積變化對農林牧漁總產值變動亦無直接相關性，資本投入與制度創新對農業增長的影響顯著，農業結構對農業經濟的增長的影響越來越大。分享友人