| 1. | The rt under the enough growing space indicated that there was two rapid regenerative periods in whole growth season , when utilization should be taken alternately , and the height of remaining should not be lower than 10cm 充足生长空间下的分蘖更新率表明野大麦有两个快速更新时期,可在此时进行交替放牧利用,留茬高度不宜低于10cm 。 |
| 2. | 2 ) spectral information based cotton discrimination model using landsat tm image cotton and other crops " spectral information were collected during cotton growth season in a field work in northern xinjing 2 )基于光谱信息的棉花识别模型的研究为提高大尺度的遥感监测中棉花识别精度与图像的解译速度,探索研究了一种tm影像的棉花识别模型。 |
| 3. | The content of aloe - emodin , rhein , emodin , chrysophanoland physcion in 3 and 4 year old cultivated rheum tanguticum , which grew in qinghai in different months of it growth season , were determined by high performance liquid chromatography 摘要采用高效液相色谱法,测定3 、 4年生生长季节内不同月份的青海栽培唐古特大黄中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚等5种蒽醌类化合物的含量。 |
| 4. | Accordingly avoided the competition among ramets effectively . their rhizomes developed root system at first . it was easier for roots to live through the winter in the alpine region with short growth season and was propitious to individual plant to survive 黄帚橐吾和箭叶橐吾的分枝角度多呈0 、 180放射状格局,有效避免了分株间的竞争;同时在生长季节短高寒地区,分株先形成根系,以根系过冬更有利于分株的成活,是适应对策之一。 |
| 5. | Experimental studies were conducted at the yucheng comprehensive experimental station of the chinese academy of sciences during the period from march to june in 2003 . respiration of a pulverous sandstone soil was studied under cultivation of winter wheat over a growth season . soil ch4 was measured by the static - chamber method combined with gas chromatography ( gc ) technique . the results indicated that the soil of winter wheat field in rapid growth season is a weak sink of ch4 本文利用静态箱气相色谱( gc )分析的方法,在中国科学院禹城综合试验站,对华北平原冬小麦生长旺季期间麦田土壤中ch _ 4气体通量进行了测定,试验起止时间为2003年3 6月,得出华北平原典型冬麦田土壤是大气ch _ 4的弱吸收汇。 |
| 6. | Kriged interpolation maps provided good indication of the spatial variability in crop yield and growth status . spatial interpolation and correlation analysis proved that spad lai was more indicative of crop growth status than individual variable , and useful for implementing growth season regulation and topdressing as needed 克里格插值图可很好地描述作物长势和产量的空间变异,空间插值分析与相关分析结果都说明,采用spad * lai二乘因子较之单个变量能更精确反映作物长势,从而有助于实施产中调控和按需补给。 |
| 7. | ( 5 ) the synthetic draft curve was conducted by crop coefficient and relative soil moisture . the correlation in crop coefficient and relative water content takes on uniform trend comparing to the soil water deficient degree . in the whole growth season of cotton , the high correlation coefficient occurred in the period of seeding , which was declined in the period of blooming and flowering , whereas it was raised in the late period of cotton ( 5 )综合作物系数与相对含水率拟合关系表明,作物系数与含水率的相关性与土壤受旱的情况呈现相同的趋势,苗期的相关系数高,而到了蕾期偏低,花铃期更低,到了吐絮期有所升高,整体上表现为水分状况良好,相关性就越高。 |
| 8. | ( 4 ) in 2001 , the average daily et of cotton in the whole growth season is 1 . 75mm / d , the total et is 307 . 48mm , and the average crop coefficient ( kc ) is 0 . 39 under deficient irrigation . in 2002 , the average daily et of cotton in whole growth season is 1 . 94mm , the total et is 337 . 04mm , and the average crop coefficient ( kc ) is 0 . 43 under sufficient irrigation ( 4 ) 2001年胁迫供水情况下,在整个生育期棉花的蒸发蒸腾量为307 . 48mm ,平均日耗水强度为1 . 75mm ,作物系数平均值为0 . 39 ; 2002年充分供水情况下,在整个生育期内棉花的蒸发蒸腾量为337 . 04mm ,平均日耗水强度为1 . 94mm ,作物系数平均值为0 . 43 。 |
| 9. | In growth season , computed daily npp has some negative correlation with precipitation and the monthly npp has apparently active correlation with monthly average air temperature . 5 . the results of experiment in vegetation growing model show that co2 increasing and its resulting in climate change would make npp of deciduos needleleaf forest in the cold - temperate zone apparently higher 5 )对co _ 2浓度增加后以及可能产生的气候变化对植被生长影响的模拟试验结果表明,落叶针叶林的npp将可能会有明显提高,但如果只是温度增加,而降水保持不变的话,生产力水平提高不明显甚至会出现下降。 |
| 10. | The remote sensing quantitative retrieval model for the appraisable factors of desertification monitoring are founded . in naiman country , inner mongolia , the experimental area , the hyperspectral imaging spectrometer data in plant growth seasons are collected by state - produced airborne hyperspectral imaging spectrometer omis - i , and the etm + image is also obtained . meanwhile , ground investigation and measurement are made , which include the measurement on reflection feature of different kinds of geo - targets and the ground investigation data necessary for spectral rebuilding and retrieval models of the appraisable factors of desertification monitoring 本研究以内蒙古奈曼旗作为研究试验区,采用我国自行研制的机载高光谱成像光谱仪omis - ,在植被生长季节取得高光谱分辨率成像光谱仪数据和etm ~ +图像,并进行了同步的地面调查及量测,包括不同类型地物反射特性量测和光谱重建以及荒漠化监测评价因子定量反演模型所必需的地面样方调查数据。 |