漸選樣方 的英文怎麼說
中文拼音 [jiānxuǎnyàngfāng]
漸選樣方
英文
nested quadrats-
In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor
針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。Nowdays, under the pressure of agricultural manufacture mostly depend on market, and the peasants requirements becomes excessive, to enhance the efficiency of the small farmer " economy in large market, decrease the risk and indeterminacy in market bargaining, there must have a organization to be the agency inter peasants and market, the organization must delegate benefit of the peasants straightly and in deed, so construct farmer cooperative organization is. very important we can know the facts through evaluate the performance of the peasants cooperative organization history : the knowledge about cooperative and follow which guidance have some relation in the development of peasants cooperative organization ; we should choose the gradually pattern for system flux, must consider the economic behavior expect in the main body of organization - the farms
通過對農民合作組織的歷史績效評價可以看到：對合作的認識和遵循的指導思想與農民合作組織的發展關系很大；在制度變遷道路選擇上應考慮借鑒漸進式改革之路；必須考慮參加者主體?農戶的經濟行為預期及產權結構、組織壟斷、規模等因素的影響。農民合作組織發展的必然性源於農業生產的生物性、地域分散性和生產的隨意性，同時也決定農民合作經濟組織必須具有靈活性、多樣化、可過渡性和以社區為基礎的特殊要求。從制度經濟學分析，農民合作經濟組織在降低農民外部交易成本、實現公平和效率平衡、降低風險和不確定性等方面具有經濟上的合理性，所以有進一步規范和發展的必要。In the third section, the emphasis was put on evaluation of the gradual effects of climate change in future 50 years. all the three sections drew an outline of global climate change affecting the whiter wheat production at present and in future in the studied region. in the third section, the gradual climate change scenarios considering both climate and its variability in future 50 years ( i. e., 2010, 2030 and 2050 ) were generated, using outputs of the giss transient run and the baseline, adopting the same method described in the second section mentioned above
第3部分，選擇gisstransientrun （氣候漸變模型）的有關網格點值，採用上述第2部分同樣的方法，生成了研究區域未來50年內（即2010年、 2030年和2050年）兼顧氣候及其變率變化的氣候漸變情景，並結合ceres - wheat的模擬結果，分析了氣候及其變率變化對研究區域冬小麥生產的階段性影響，並應用gis軟體，對各代表性樣點的有關模擬結果進行了圖像顯示。As in the physical world, whether it be physicians, auto mechanics, or telephone companies, one might develop a preference for a particular provider, a mode of interacting, and an approach for choosing a replacement
正如真實世界中一樣，不論是醫生、自動機器還是電話公司，都有可能逐漸習慣特定的提供者、交互模式和選擇替代品的方式。分享友人