temporal trend 中文意思是什麼
temporal trend
解釋
時間趨勢-
Takes the case of beijing city, this dissertation mainly studies the spatial distribution characteristics and temporal change trend of urban land price in different uses, and explores the spatial structure of land price and the mechanism of its formation, in order to supply some references for city function zoning, optimizing city land use structure and regulating city land market
本文以北京市為例，主要研究不同用途城市地價的空間分佈特徵和時間變化趨勢，揭示城市地價空間結構及其形成機制，為確定城市功能分區、優化城市用地結構和宏觀調控城市土地市場提供依據。 -
In this paper, the climatic variation features and spatial and temporal distribution of the flood and drought in zhejiang province were analyzed by using 36 monthly and seasonal station data during 1961 - 1999 observed over zhejiang province, 160 rainfall and temperature data during 1951 - 1999 observed over china, northern hemisphere 500mb height data during ! 961 - 1999, the planting and flood disasters area data in zhejiang province during 1949 - 1998. we used many method : calculated trend coefficient of rainfall and temperature, used eof, reof, ssa ( singular spectrum analysis ) and mem ( maximum entropy spectrum ) method and synoptic method. we first studied the climatic variation features of summer and autumn and characters of the flood and drought in zhejiang
本文用1961 - 1999年浙江省36個氣象觀測站的降水量和氣溫資料、 1951 - 1999年全國160站的降水量和氣溫資料、 1961 - 1999年500hpa月平均高度資料和1949 - 1999年浙江省11個地市的受災面積、成災面積、耕地面積等資料，通過計算趨勢系數、變量場eof分解、旋轉eof分解、奇異譜分析和最大熵譜分析等多種統計學方法和天氣學方法，研究了浙江省氣候變化特點及旱澇災害時空分佈的特徵。 -
Based on the available high - quality surface - meteorlogical observation data from 22 stations in trim basin from 1961 to 2000, investigation has been conducted for the temporal and spatial distribution characteristics, especially for interdecadal change and long - term trend of sandstorm in trim basin in recent 40 years
摘要本文利用1961 - 2000年塔里木盆地22個氣象站的氣象實測資料，分析了近40年塔里木盆地沙塵暴天氣的時空分佈特徵。 -
Annual precipitation series about 50 years is stable and no period ; further, the climate drying and desertification are n ' t caused directly by the decrease of precipitation during the period of the research according to the relational analysis among precipitation temporal - spatial change, runoff, evaporation, potential evapotranspiration and soil water ; longyangxia reservoir which was built in 1986 does n ' t have influence on precipitation up to now ; but annual temperature series in gonghe is unstable, having a linear upward trend, and it increases about 0. 0247, 0. 0422 and 0. 0272c per year, and temperature rise must be having an influence on desertification, but there is a very little temperature change, so that the effect is very small ; annual potential evapotranspiration series is stable too, so climate change has little influence on plant water consumption. 2
在青海共和盆地，近50年的年降雨量序列是平穩的、無周期，其時空變化與徑流、蒸發、潛在蒸散和土壤水分的關系表明，氣候乾燥和嚴重的荒漠化不是由於降雨量減少直接引起，龍羊峽水庫對共和盆地年降雨量變化沒有影響；但是年氣溫序列是非平穩的，茶卡、恰卜恰和貴南的年氣溫平均每年升高0 . 0247 、 0 . 0422和0 . 0272 ，且氣溫升高2 ，年潛在蒸散增加57mm ，盆地內氣候逐漸變乾燥，但影響比較小；由於歷年潛在蒸散序列是平穩的，因此氣候變化對盆地的作物潛在蒸散的影響在研究期內是較小的。 -
The variational trait of the first temporal coefficient is that the coefficient is often positive in 1960s, often negative in 1970s, the break point often happen in 1960s and 1970s, especialy 1970s ; the fluctuate of the second temporal coefficient of year. spring and autumn appears little change, but appears much change of summer and winter, the break point often happen in 1980s and 1990s, specially 1980s ; the change trend of the third temporal coefficient is not obvious during 1961 to 2000, only appears clear raise in the anaphase 1990s ; it is difficult to detail the positive and negative trend of the fourth temporal coefficient, the situation of the coefficient appears alternant change of positive value and negative value, the break points happen concentratively in 1990s, the situation of the fifth temporal coefficient is like the fourth ' s ; the alternate of positive value and negative value of the sixth temporal coefficient is obvious, then the negative trend take advantage after 1990s, the distribution of the break point is even, but most of them still in 1990s ; the break points happen many times, but it is limited that the break points attain 0. 05 significance test
第一時間系數變化大體有如下特點：對年和季節來說， 60年代系數多表現為正值， 70年代多表現為負值，突變點多發生於60 、 70年代，特別是60年代；第二時間系數在年、春季、秋季表現為波動很小，夏季和冬季則很大，突變點多發生於80 、 90年代，特別是80年代；第三時間系數正負變化趨勢不明顯，只是90年代後期在年和夏季降水中升高明顯；第四時間系數基本無明顯正負趨勢可言，只是正負交替出現，突變點集中出現在90年代；同第四時間系數相似，第五時間系數亦無明顯正負趨勢，突變點多出現在90年代；第六時間系數正負交替明顯，進入叨年代后負趨勢為主，突變點分佈較均勻，但仍以904atvjz多；突變點出良多，但突變區域艾擇no 05 ggrr著性以上的卻有限。 -
Summer precipitation in northeast china ranging from 1960a to 2000a and ncep reanalysis data is applied to study the temporal and spatial features of summer rainfall and extreme precipitation in northeast china. the results show : 1 summer rainfall in northeast china exhibits upward trend with the cycle variation of 14 years and 2 to 4 years. two abrupt changes occurs in summer rainfall with its happening time on 1964 and 1988 / 89
利用東北地區99個測站的1960 ? 2000年夏季逐日降水資料，以及ncep再分析資料，採用旋轉經驗正交函數、 morlet小波分析、合成分析等方法分析了東北地區夏季降水的演變特徵和降水異常的環流背景，得出主要結論如下： 1東北地區夏季降水存在著減少趨勢，並且有14年和2 4年的周期存在，降水發生過兩次突變現象，分別發生在1964年和1984 85年之間。 -
Based on the analysis of the temporal - spatial and component of the passenger flow, freight : elow and traffic flow on road transportation corridor ; the paper has analyzed the existing traffic situation on main and secondary road of the corridor and outlined the development trend. reviewing the technical and economic characteristic : of the variety transport means and considering the interest of shipper and passenger, the paper discusses the reasonable structure of the freight and passenger flow in comprehensive transportation corridor. on the analysis of factors affecting road capacity, the paper puts forward the approaches and measures to increase the road capacity and the level of service, and improves the comprehensive transportation corridor capacity
本文在對道路運輸通道上客流、貨流和交通流的時空分佈特性及其構成分析的基礎上，研究其在通道主、輔道上的分佈現狀及該現狀形成的原因，並對其發展趨勢進行論述；根據綜合運輸通道中各運輸方式的技術經濟特點，在考慮旅客和貨主對運輸服務特性偏好的基礎上，對通道內客貨流在不同運輸方式/線路上的分配進行了探討；通過對道路通行能力影響因素的分析，提出了提高道路通行能力和服務水平、改善道路運輸通道綜合運輸能力的途徑和措施。 -
But the temporal and spatial characteristics of change of landscape are different among different types of beijing mountain area. in terms of different areas, the condition of vegetation cover in a whole has an increased trend in changping district, huairou county and miyun county
結果表明： （ 1 ）就不同區域而言，昌平區、懷柔縣以及密雲縣的植被覆蓋狀況整體表現為增加趨勢；平谷縣表現為減少的趨勢，而門頭溝區的植被覆蓋率雖然較高，但其有轉變為差的趨勢。 -
The high change of preci - pitation made spatio - temporal change of climatic productive potentialities bigger than that of photosynthesis and photo - temperature. the trend of water decreasing from south to north, from east to west in hebei, beijing, tianjin and shandong, from south to north in shanxi, shaanxi and henan made every index has the same trend almostly
降水年際變異較大，區域差異明顯，使得氣候生產力的時空變化大於光合和光溫生產力的時空變化，在中東部，水分由南向北、由東向西減少，中西部由南向北減少，使得各項指標的變化均有與此基本相應的變化趨勢。 -
The overall temporal and spatial variation trends in the recent 30 years are that : the total area of desertification land is increasing. the reverse trend of land desertification is greater than the evaluative trend. the proportion of gently reversion and distinctively reversion is equivalent
30年來，科爾沁沙地土地沙漠化的時空變化總體趨勢是：沙漠化土地的總面積呈增加趨勢；研究區土地沙漠化逆轉的趨勢大於發展的趨勢，輕度逆轉和明顯逆轉的比例相當；土地沙漠化的程度加重。 -
The study has systematically investigated the characters of spatial and temporal variation of temperature and precipitation in qinghai since 1961, and the results show that the trend rate of annually average of temperature in qinghai is significantly higher than that of the other places in the whole china, with qinghai acting as a sensitive area of china climate warming, and that precipitation efficiency is also clearly improved
以配合西部大開發進行基礎性、戰略性和前瞻性研究，為青海省生態環境與社會經濟的協調發展，水土資源的可持續利用提供科學依據。本研究系統分析了1961年以來青海省氣溫、降水等氣候特徵因子的時空變化特徵，表現在青海高原年平均氣溫變化傾向率要明顯高於全國，是中國氣候變暖的敏感區，降水的有效性發生了明顯變化。
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