primary productivity 中文意思是什麼

primary productivity 解釋
初級生產力
  • primary : adj 1 第一的，最初的，初級的；初等的；基本的；基層的。2 主要的，為首的，第一位的。3 原始的，根本...
  • productivity : n. 1. 多產，豐饒。2. 生產率；生產能力。
  1. Through quantitative comparison of the salinity, temperature, wind, wave, current, tide, biogenesis elements, and rare elements of coral reef in the coral reef zone of the nansha islands in china with these in the open sea, it is found that the nutrients and primary productivity in the coral reef are several dozen or several hundred times higher than those in the open sea. it is indicated that, given sufficient sunlight, the coral reef eco - environment could provide very intense photosynthesis, thus pointing to the important reason why the coral reef zone is highly productive

    根據中國南沙群島珊瑚礁區的溫度、鹽度、風、浪、流、潮、生源要素、稀有元素分析並與礁外海域定量比較，得出珊瑚礁區的營養物質和初級生產力比敞海高出幾十倍到幾百倍，表明只要有充足的陽光，珊瑚礁生態環境就可以提供十分強烈的光合作用，從而證明了珊瑚礁海區高生產力的重要原因。
  2. The radical reason of lower ecosystem productivity and disharmonic developing in this ecotone is the improper configuration inner animal husbandry for example of ansai county and big animal scale exceeding the threshold of the primary productivity for example of wuchuan county, which above - mentioned leads to the fact that coupling mechanism between agriculture and animal husbandry system has not been established, and agriculture and animal husbandry is still in the state of disharmonic on the whole. 3

    主要表現為兩種典型結構模式，一種以安塞縣為代表，農牧能值總體利用率較高，但畜牧業內部結構偏重食糧動物使得高質能轉化率低下；另一種以武川縣為代表，農牧業結構總體上朝趨于協調方向發展，但畜牧業規模過大，由於草畜平衡嚴重失調，導致農牧系統耦合機制難以穩定。
  3. " if the net primary productivity of a plant is high, it means the plant grows more healthily, " says lead author zhu wenquan of the college of resources at the university

    該報告的第一作者，北京師范大學資源學院朱文泉說「如果植物凈初級生產力越高，這意味著植物生長得越健康。 」
  4. Phosphorus is an essential nutrient element for phytoplankton in ocean environments, and sometimes a limiting factor for the primary productivity

    摘要活性磷（正磷酸鹽）是海洋浮游植物生長所必需的物質基礎，在某些海域，它甚至成為初級生產力的限制因素。
  5. Daoguanhe rerservoir is a typical hill type reservoir in wuhan, china. its area for fish culture is commonly 467ha. periphytic algae and periphytic protozoan including species, the content of chl. a and primary productivity et al, were studied from april 2000 to january 2001

    本文從2000年4月至2001年元月按每季度采樣一次，對道觀河水庫按上游、中游、下游設置的三個采樣站作了周叢藻類、周叢原生動物的群落結構和漁產潛力的研究，結果表明： 1
  6. Bio - diversity of primary productivity of water bodies

    試看水體初級生產力的生物多樣性
  7. As a result, the net primary productivity of land plants in china grew by 11. 5 per cent because of climate change, which the authors say is consistent with the global trend of an increase of about six per cent worldwide

    最終，由於氣候變化導致陸生植物的凈初級生產力增長了11 . 5 % ，對此，該報告的作者說這與全球趨勢保持了一致? ?同期全球植物凈初級生產力增長率是6 % 。
  8. The results indicated that as the intensity of sward cleavage increased, elymus nutans and other plants that had high requirements in soil aeration and resource space presented an increased competitive edge and the species that had low requirements in soil aeration and resource space presented an opposite picture ; low - intensity sward cleavage could help increase species diversity to a certain extent, but the diversity index appeared to decline as a whole as the cleavage intensity increased ; the effects of sward cleavage on functional groups of the vegetations showed in such manner as e. nutans - represented grasses increased in their composition with the intensity of sward cleavage raised, and sedges and forbs decreased in their compositions with the intensity of sward cleavage raised ; sward cleavage showed a significant improving effect on primary productivity of the meadows and was capable of increasing the proportion of quality - grass biomass to the total plant biomass ; sward cleavage could be independently employed as an effective measure to rehabilitate and improve alpine - meadow grasslands and thus played a basic and key role in the technical combination aiming at establishing hay fields characterized by e. nutans

    結果表明：垂穗披堿草等對土壤通透性和資源空間要求較高的物種，競爭力隨劃破強度的增加而上升，而對土壤通透性和資源空間要求相對較低的物種則相反；輕度劃破干擾對提高物種豐富度具有一定的促進作用，但多樣性指數則總體上表現為隨劃破強度的增加而呈下降的趨勢；劃破干擾對植被功能群的影響表現為以垂穗披堿草為代表的禾草類組分隨干擾強度的增加而顯著上升，莎草類和雜類草組分隨干擾強度的增加而顯著下降；劃破干擾對草地初級生產力的提升具有顯著的促進作用，且可顯著增加植物總量中優質牧草的比重；劃破干擾可獨立作為高寒草甸類草地恢復與改良的有效措施，在定向培育垂穗披堿草型割草場的技術組合中具有核心和基礎性的地位。
  9. Jiang hong, apps michael j. zhang yanli, peng changhui and woodard paul m., 1999, modeling the spatial pattern of net primary productivity in chinese forests, ecological modeling 122, 275 - 288

    郭泉水，江洪，徐慶， 1999 .中國主要森林群落的植物生活型譜與氣候因子的統計數學模型及環境解析.植物生態學報， （ 1999增刊） 1 - 10
  10. The first axis of dca ordination reflects a synthetic environmental gradient, positively correlated with precipitation, humidity, heating, primary productivity, and potential evaporation etc. the second axis of dca represents changes in altitude and longitude

    Dca排序第一軸表現了一個綜合的環境梯度，即從左到右，降水、濕度、熱量、初級生產力、潛在蒸發量逐漸增強， dca第二軸反應了海拔和經度的變化，即從上到下，海拔降低、經度增加。
  11. Influence of seasonal distribution of precipitation on primary productivity of stipa krylovii community

    降水量季節分配對克氏針茅草原群落初級生產力的影響
  12. Grey correlation analyses show that at the time axis, the factors influencing the diversity of plants strongly are primary productivity, annual precipitation, relative humidity, mean temperature in january, and potential evaporation etc. the spatial distribution pattern of terrestrial vertebrates including mammals, birds, reptilians and amphibians were studied with methods similar to those for plants. 7 d

    通過d以排序表明， d以第一軸與多個環境因子均呈顯著相關，其中與經度、年均溫、年均降水量、年均相對濕度、潛在蒸發量、初級生產力呈正相關，與緯度、海拔、年均風速、寒冷指數、年均日照率呈負相關。
  13. Firstly, this dissertation estimated the size of carbon source ; sink and net carbon sink of farmland ecosystems in china costal regions ( including ten provinces ) with statistic data from 1981 to 2001, which include data of crop yield and agricultural consumptions. then analyzed the temporal - spatial differences of carbon source, sink and net carbon sink of china costal farmland ecosystems. secondly, estimated npp ( net primary productivity ) of farmland ecosystems in china costal regions with per month noaa - avhrr ndvi ( normalized difference vegetation index ) data and estimation model

    本文首先運用1981 - 2001年的統計資料（作物產量和各種途徑的農業投入數據） ，對沿海十省區農田生態系統碳源匯及凈碳匯進行了估算，並分析了其時空差異；然後運用1998年逐月ndvi數據通過建模對沿海地區農田生態系統npp進行了估算，並分析了npp分佈與農田生態系統碳吸收的相關性；最後通過對農田生態系統碳源匯的影響因素分析，提出了不同的農田生態系統碳增匯減排技術。
  14. The spd model is made by the ins titute of geographical sciences and natural resources research of chinese academy of sciences. it combines social economic factors, such as city and transportation foundational facilities, with nature factors, for example the digital elevation model ( dem ) and net primary productivity ( npp ) of plants to simulate the spatial distribution of population density of china by the advanced grid generation technology

    中國模擬人口密度模型是由中國科學院地理科學與資源研究所首先提出的，這個模型試圖利用先進的格網生成技術，將城市、交通基礎設施等社會經濟因子和陸地數字高程（ dem ） 、陸地植被凈第一性生產力（ npp ）等自然因子相結合，通過模型的反演，模擬某一時期的中國人口密度空間分佈狀況。
  15. Referring to zhu ' s studies, gao says various aspects of climate change could combine to complicate the impact on plant growth, and it is difficult to associate a change in net primary productivity with variation of a single " major " climate factor

    在提到朱文泉的研究時，高志強說氣候變化的諸多因素都會對植物的生長產生互動的和復雜的影響，依靠這三種「主要」氣候因素變化來對植物凈初級生產力進行測算還是很難的。
  16. Management is the primary productivity

    管理是第一生產力。
  17. Net primary productivity

    凈初級生產力
  18. As far as total emergy output, ansai county increased 34. 5 percent in 2000 than in 1990, and wuchuan county increased 36. 1 percent in 2000 than in 1990, however, the primary productivity was still in the stage of traditional lower input

    以能值表示的總產出能值，安塞縣2000年比1990年高34 . 5 。武川縣同比增長36 . 1 。
  19. Scientists at the beijing normal university studied the link between climate factors and changes in plants ' net primary productivity ? a term used to evaluate the net reserve energy plants need during growth ? between 1982 and 1999

    北京師范大學的科研人員研究了在1982年到1999年期間氣候因素與植物凈初級生產力變化之間的聯系，植物凈初級生產力指的是植物在生長周期中的能量凈儲備值。
  20. Modis ( moderate resolution imaging spectroradiometer ) is an important data getting instrument of information onboard the terra and aqua satellites. these data as the substitute of noaa - avhrr data are familiar with people. the data have been mainly used in dynamic monitoring of natural disaster, changes in landscape and vegetation, global net primary productivity, ecological environment, climate changes, and ocean

    Modis傳感器是搭載在terra和aqua衛星上進行全球變化研究的主要信息數據獲取設備，其數據作為noaa - avhrr的替代產品正逐漸被人們認識和關注，並已被應用到自然災害、土地覆蓋變化、全球生產力、生態環境、氣候變化、海洋等領域的動態監測當中，具有廣泛的應用前景。
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