cropping region 中文意思是什麼

cropping region 解釋
作物區
  • cropping : 裁邊
  • region : n. 1. 地方，地域，地帶；地區；行政區，管轄區，區；左近，鄰近；（大氣、海水等的）層，界，境。2. 【解剖學；動物學】（身體的）局部，部位。3. （學問等的）范圍，領域。4. 〈罕用語〉天空。
  1. In different phases of development, vegetation systems in this region have changed from pioneer herbage species initially recovering in abandoned cropping lands ( bothriochloa ischemum, artenmisia giradii and stipa bungeana, artenmisia sacrorum, spodiopogen sibiricus and sophora flavecens, themeda japonica, and arundinella anomala ) to secondary shrubs ( hippophae rhamnoides, sophora viciifdia, and ostryopsis davidiana ), early forest community ( populus davidiana, betula platyphylla and platycladus orientalis with arbors or shrub assembling ), and finally liaotungesis community as the mature forest. in this study, soil profiles ( 0 - 5, 5 - 15, 15 - 25, 25 - 35, 35 - 50 cm soil layers ) were selected from typical vegetation systems representing for vegetation successions in the region

    該區北部目前還保存有空間上完整的植被正向演替系列，即棄耕地先鋒群落草本群落（白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +長茅草stipabungeana 、鐵桿蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦參sophoraflavecens 、黃菅草themedajaponica或野古草arundinellaanomala ）灌叢群落（沙棘hippophaerhamnoides 、狼牙刺sophoraviciifdia 、虎榛子ostryopsisdavidiana ）早期森林群落（喬灌群聚、山楊populusdavidiana 、白樺betulaplatyphylla 、側柏platycladusorientalis 、 ）遼東櫟群落（ quercusliaotungensis ） 。
  2. Situation, potential and strategies of grain production in double cropping region of china

    北方農牧過渡帶農戶農業生產系統模式評價與優化研究
  3. Report on cropping of the alfalfa in liupanshui region

    紫花苜蓿在六盤水地區的種植利用初探
  4. Results of succession cropping demonstration of early mature corn changcheng 12 in chilling and humid region of high - elevation of linxia county

    早熟玉米長城12在臨夏高寒陰濕區的復種示範結果
  5. / based on the trends of present cropping development and irrigation efficiency increase in the region, water supply can meet irrigation by 89 % in 2010, 75 % in 2020 and 70 % in 2030 to crop ' s water requirement under normal condition. water supply can meet irrigation by 100 % in 2010, 88 % in 2020 and 83 % in 2030 to 85 % of crop ' s water requirement under normal condition. the situation of water shortage in the region is more austere in dry year

    3 ）按目前種植業發展趨勢並考慮到灌溉效率的提高，平水年在100充足灌溉方式下， 2010年、 2020年和2030年可供水量對灌溉的滿足率分別為89 、 75和70 ；在85虧缺灌溉方式下， 2010年供水可以滿足需要， 2020年和2030年供水量對灌溉的滿足率為88和83 ；乾旱年度的灌溉滿足率更低，形勢更為嚴峻。
  6. Based on water use efficiency, water produce energy efficiency and economic benefit of water use to different crops, an overall evaluation of water use efficiency to cropping system in irrigation field of beijing is made, and a planting structure of grain cropping, fruit growing and vegetables in this region is put forwand to promote the development of thought and approach about water saving cropping system

    摘要以各種作物的水分利用效率、水分能量生產效率和水分經濟利用效益評價為依據，對北京市灌溉農田的水分利用狀況進行了綜合評價，提出了該區域優化糧食作物、果樹和瓜菜類作物的種植結構，推進節水型種植業發展的思路與途徑。
  7. Study on the selection of immigrating adult whitebacked planthoppers to the periods of transplant rice seedling in single - cropping rice region

    單季稻區白背飛虱遷入成蟲對栽期的選擇性研究
  8. Developing the zhejiang fritillary production in lishui region should be guided by the market, focus on the economic effects, develop standard and regular demonstration sites, comply with the request of the chinese medicinal materials regular production, develop the zhejiang fritillary enterprise actively and realize the regional distribution, standardized production and integrated management for zhejiang fritillary development. it was necessary to form a system of cropping, processing and exchanging management by developing the chinese medicinal materials industry and commerce

    麗水市發展浙貝母產業必須以市場為導向，以經濟效益為中心，按照中藥材規范化生產的要求，建立標準化、規范化的生產基地，積極培育浙貝母產業，實現浙貝母生產的區域化布局、專業化生產和一體化經營，形成浙貝母的規模化生產，並通過發展中藥工業、中藥商業，形成完整的產、加、銷一體化的經營體系。
  9. Functions to agriculture sustainable development of integrated cropping with animal husbandry in farming region - a case in southern intensive farming region of china

    南方集約農區農牧結合對農業可持續發展的作用
  10. Cropping takes a region of an image and makes that region into its own separate image

    裁剪將取走圖像中的一個區域，並使這一區域成為獨立的圖像。
  11. Water use efficiency in shunyi is comparatively 12 - 50 % lower than national level at present for crops except rice and soybean, which means a great water - saving potential in the region according to comparison between experimental observation and estimation. for most crops, yield potential can hardly be increased. therefore, it is necessary to enhance water - saving efficiency of cropping in the region

    2 ）比較當前順義區作物實際水分利用效率和全國平均的作物水分利用效率得出：除夏大豆和水稻外，順義區其它作物水分利用效率低於全國平均值12 ? 50 ，與當地試驗值和理論計算值相比，還有很大的增長潛力；而作物實際產量與理論產量的比較表明，大部分作物的增產潛力已不大，所以，種植業節水效率還有待于進一步提高。
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