中国农业气象
中國農業氣象
중국농업기상
Chinese Journal of Agrometeorology
2015年
5期
544-552
,共9页
西洋参%周期性温度曲线%傅里叶变换%回归模型%特征值
西洋參%週期性溫度麯線%傅裏葉變換%迴歸模型%特徵值
서양삼%주기성온도곡선%부리협변환%회귀모형%특정치
Panax quinquefolium%Periodic temperature curve%Fourier’s transform%Regression model%Eigenvalue
为了确定并揭示西洋参(Panax quinquefolium)适生区温度特征,于2012年5月-2014年4月分2期在陕西省留坝县留侯镇枣木栏村(海拔1236m)和闸口石村(海拔1722m)的4个西洋参棚内测定地上15cm高处(2a生幼苗冠层附近)的气温和地下10cm 深处(参根附近)的土温,并将有效观测日温度数据分为数组:平均气温(AMT)、最低气温(AMIN)、最高气温(AMAX)、气温日较差(RAT)、平均土温(SMT)、最低土温(SMIN)、最高土温(SMAX)和土温日较差(RST)。分别以这8组温度为依变量(Y),以观测日傅里叶变换值为自变量(X),开展逐步回归分析,组建了16个多元方程。结果表明:依变量AMT、AMIN、SMT、SMIN和SMAX对入选X的拟合效果优良,R=0.933~0.985(P<0.001);所得周期性温度曲线低谷和高峰大都出现于1月和7月。由AMT回归方程估算的年均值、低谷值、高峰值和≥10℃、≥6℃积温分别为:枣木栏,11.2、-0.9、21.1℃和1475、2403℃·d;闸口石,8.3、-3.5、18.7℃和957、1736℃·d。由SMT方程估算的对应值为:枣木栏,11.2、0.1、20.3℃和1338、2292℃·d;闸口石,8.8、-1.7、17.8℃和872、1710℃·d。冬季日最低气温均值及其下限为:枣木栏,-5.6,-10.3℃;闸口石,-8.8,-14.5℃。夏季日最高气温均值及其上限为:枣木栏,27.6,37.8℃;闸口石,25.3,34.3℃。冬季日最低土温均值及其下限为:枣木栏,0.1,-2.1℃;闸口石,-2.2,-4.4℃。夏季日最高土温均值及其上限为:枣木栏,21.3,24.8℃;闸口石,18.9,22.1℃。本研究组建了与当地参棚内温度变化趋势相配的回归模型,确定了许多温度特征值,有利于指导西洋参种植实践并为其它涉及田间温度的科学研究和应用提供参数。
為瞭確定併揭示西洋參(Panax quinquefolium)適生區溫度特徵,于2012年5月-2014年4月分2期在陝西省留壩縣留侯鎮棘木欄村(海拔1236m)和閘口石村(海拔1722m)的4箇西洋參棚內測定地上15cm高處(2a生幼苗冠層附近)的氣溫和地下10cm 深處(參根附近)的土溫,併將有效觀測日溫度數據分為數組:平均氣溫(AMT)、最低氣溫(AMIN)、最高氣溫(AMAX)、氣溫日較差(RAT)、平均土溫(SMT)、最低土溫(SMIN)、最高土溫(SMAX)和土溫日較差(RST)。分彆以這8組溫度為依變量(Y),以觀測日傅裏葉變換值為自變量(X),開展逐步迴歸分析,組建瞭16箇多元方程。結果錶明:依變量AMT、AMIN、SMT、SMIN和SMAX對入選X的擬閤效果優良,R=0.933~0.985(P<0.001);所得週期性溫度麯線低穀和高峰大都齣現于1月和7月。由AMT迴歸方程估算的年均值、低穀值、高峰值和≥10℃、≥6℃積溫分彆為:棘木欄,11.2、-0.9、21.1℃和1475、2403℃·d;閘口石,8.3、-3.5、18.7℃和957、1736℃·d。由SMT方程估算的對應值為:棘木欄,11.2、0.1、20.3℃和1338、2292℃·d;閘口石,8.8、-1.7、17.8℃和872、1710℃·d。鼕季日最低氣溫均值及其下限為:棘木欄,-5.6,-10.3℃;閘口石,-8.8,-14.5℃。夏季日最高氣溫均值及其上限為:棘木欄,27.6,37.8℃;閘口石,25.3,34.3℃。鼕季日最低土溫均值及其下限為:棘木欄,0.1,-2.1℃;閘口石,-2.2,-4.4℃。夏季日最高土溫均值及其上限為:棘木欄,21.3,24.8℃;閘口石,18.9,22.1℃。本研究組建瞭與噹地參棚內溫度變化趨勢相配的迴歸模型,確定瞭許多溫度特徵值,有利于指導西洋參種植實踐併為其它涉及田間溫度的科學研究和應用提供參數。
위료학정병게시서양삼(Panax quinquefolium)괄생구온도특정,우2012년5월-2014년4월분2기재합서성류패현류후진조목란촌(해발1236m)화갑구석촌(해발1722m)적4개서양삼붕내측정지상15cm고처(2a생유묘관층부근)적기온화지하10cm 심처(삼근부근)적토온,병장유효관측일온도수거분위수조:평균기온(AMT)、최저기온(AMIN)、최고기온(AMAX)、기온일교차(RAT)、평균토온(SMT)、최저토온(SMIN)、최고토온(SMAX)화토온일교차(RST)。분별이저8조온도위의변량(Y),이관측일부리협변환치위자변량(X),개전축보회귀분석,조건료16개다원방정。결과표명:의변량AMT、AMIN、SMT、SMIN화SMAX대입선X적의합효과우량,R=0.933~0.985(P<0.001);소득주기성온도곡선저곡화고봉대도출현우1월화7월。유AMT회귀방정고산적년균치、저곡치、고봉치화≥10℃、≥6℃적온분별위:조목란,11.2、-0.9、21.1℃화1475、2403℃·d;갑구석,8.3、-3.5、18.7℃화957、1736℃·d。유SMT방정고산적대응치위:조목란,11.2、0.1、20.3℃화1338、2292℃·d;갑구석,8.8、-1.7、17.8℃화872、1710℃·d。동계일최저기온균치급기하한위:조목란,-5.6,-10.3℃;갑구석,-8.8,-14.5℃。하계일최고기온균치급기상한위:조목란,27.6,37.8℃;갑구석,25.3,34.3℃。동계일최저토온균치급기하한위:조목란,0.1,-2.1℃;갑구석,-2.2,-4.4℃。하계일최고토온균치급기상한위:조목란,21.3,24.8℃;갑구석,18.9,22.1℃。본연구조건료여당지삼붕내온도변화추세상배적회귀모형,학정료허다온도특정치,유리우지도서양삼충식실천병위기타섭급전간온도적과학연구화응용제공삼수。
In order to determine and reveal temperature properties in areas adapted for American ginseng (Panax quinquefolium) growth, the authors measured both air temperatures at 15cm height aboveground, where canopies of two-year-old seedlings were distributed, and soil temperatures at 10cm depth underground, where roots of the plant extended, within 4 plastic greenhouses of the plant located in Zaomulan (alt. 1236m) and Zhakoushi (alt. 1722m) villages, Liuhou Township, Liuba County, Shaanxi Province, China, both from May to October 2012 and from March 2013 to April 2014. The valid observational dates were categorized into a data set, and all the valid daily temperatures into 8 data sets such as air mean (AMT), air minimum (AMIN), air maximum (AMAX), range of air temperature (RAT), soil mean (SMT), soil minimum (SMIN), soil maximum (SMAX), and range of soil temperature (RST), which were each designated as a dependent variable (Y). Ordinal dates were coded from observational ones and then calculated into sine and cosine values of their 1- to 4-fold radian angles by Fourier’s transform, with each of the 8 sets designated as an independent variable (X). Each Y was regressed against the 8 sets of X through stepwise regression analysis, and a total of 16 polynomial regression equations were established. The simulation effect of AMT, AMIN, SMT, SMIN and SMAX against Xs retained was excellent, with their compound correlation coefficients high, R= 0.933- 0.985 (P<0.001); and valleys and peaks of the periodic temperature curves obtained appeared mostly in January and July. Estimated by AMT equations, values of annual mean temperature (℃), valley (℃), peak (℃), accumulated temperatures above 10 and 6℃ (℃·d) in the greenhouses were respectively: Zaomulan, 11.2,-0.9, 21.1, 1475, 2403; Zhakoushi, 8.3,-3.5, 18.7, 957, 1736. Corresponding values estimated by SMT equations were: Zaomulan, 11.2, 0.1, 20.3, 1338, 2292; Zhakoushi, 8.8,-1.7, 17.8, 872, 1710. Average low of daily air temperature and the lower limit of daily minimum in winter were: Zaomulan,-5.6,-10.3; Zhakoushi,-8.8,-14.5. Average high of daily air temperature and the upper limit of daily maximum in summer were: Zaomulan, 27.6, 37.8; Zhakoushi, 25.3, 34.3. Average low of daily soil temperature and the lower limit of daily minimum in winter were: Zaomulan, 0.1,-2.1; Zhakoushi,-2.2,-4.4. Average high of daily soil temperature and the upper limit of daily maximum in summer were: Zaomulan, 21.3, 24.8; Zhakoushi, 18.9, 22.1. The study establishes regression models that match periodically changing trends of annual temperatures inside local plastic greenhouses for the plant, and reveals many temperature eigenvalues, which will benefit practices directing plantations of American ginseng, and provide other scientific studies and applications dealing with field temperatures with parameters.