yield map 中文意思是什麼
yield map
解釋
成品率圖-
9. for calculating the variable fertilizing dose, a mathematics model was selected. the model takes account of the yield goal, soil fertility, fertilizer available ingredient content, and the fertilizer using efficient. in the beijing precision agriculture demo farm, the system was used for base map mapping, field boundary map update, soil nutrition map generating, yield map generating, and field basic information management
在北京精準農業示範區，對設計開發的農田地理信息、系統進行了gps測繪、坐標系轉換、電中國農業大學博士學位論文摘要一子地圖更新、土壤采樣規劃、田間信息分布圖與作物產量分布圖生成、農田管理區劃分、目標產量圖生成、變量施肥處方圖生成以及基本信息管理等方面的測試與實際工作。 -
( c ) land natural productivity increase from 7843 kg / ( hm2 - a ) to 17335 kg / ( hm2 - a ) relate to altitude closely, and the mean rate of enhancing yield is 23. 53 percent in this region with annual enhancing - rate of 0. 64 percent in last 15 years. ( d ) there are many facters that have been influe ncing soil effective coefficient that ' s soil organic matter, total nitrogen, effective phosphine and soil texture in turn. in a word, attenuation cause of land productivity is the result of water and soil. ( e ) the forestland potential productivity change from 3986 kg / hm2 to 15034 kg / hm2, but it has a high distinction between southern aera and north area in yaan city. ( f ) the grassland potential productivity increase from 4085 kg / ( hm2 - a ) to 16973 kg / ( hm2 - a ), but it has a high classification of potential productivity, ( g ) ditribution map was formed of potential land productivity. ( h ) it could be act as decision support for agriculture development, national land planning and ecotop constructive, etc
5 、土地自然生產潛力水平的主要土壤限制因素為有機質、全氮，其次為速效磷和土壤質地；區域潛在生產力差異的制約因素，主要為土壤，次為水分，水、土兩項衰減合計為45 . 99 ，石棉、漢源兩縣水、土衰減達到60左右。 6 、林地潛力在3986 15034kg / hm ~ 2之間，高等級林地比重小，以大相嶺為界，北部的各縣林地生產力水平高，南部的兩縣林地生產力水平較低。 7 、天然草地生產潛力水平高，潛力在16973 4085kg / （ hm ~ 2 ? a ）之間，以高產的一、二、三級草地為主，且近10年來該比例變化不大。 -
Many functions such as field information map, contrastive map of yearly yield, prescription map, etc. can be made. in order to improve using accuracy of agricultural gps, by analyzing the error of point, polyline, polygon, several methods are produced such as arithmetic average value, least squares, adding control points, etc. their principles, features and limitations are also analyzed and discussed. the mathematic model of average error method included in adding control points is established
為了進一步提高農用gps的使用精度，研究了提高精度的方法，通過對點、線、面等誤差的分析，提出了應用算術平均值法、最小二乘法、加入控制點法等多種提高精度的方法，分析和討論了它們的原理、特點與應用局限性，並建立了加入控制點法中的誤差平差法的數學模型。 -
This needs the support of technology of obtaining field yield information and making yield map
因此獲取農田小區產量信息，建立小區產量空間分布圖，是實施「精細農作」的起點。 -
For yield map generating, a local - averaging interpolation method with a random error yield data filter was designed ; and for field information distribution map generating, an idw interpolation method with a smoothing parameter was used. 7. fuzzy integrative evaluation and cluster analysis was used for field management zoning
在田間信息分布圖生成與插值方法的研究方面，設計了用於生成產量分布圖具有數據過濾功能的局部平均法；並選用了一種帶有平滑參數idw插值方法；該方法可以有效的防止插值結果中出現數值突然變化的奇異點。
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