词语大全 quercus variabilis中文翻譯

Posted 2022-08-14 混交林

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词语大全 quercus variabilis中文翻譯

Histological observation of somatic embryogenesis from cultured embryos of quercus variabips bi
栓皮櫟體細胞胚胎發生的細胞組織學觀察

Forestland evapotranspiration and water balance of pinus tabulaefor - mis and quercus variabips mixed stand
油松栓皮櫟混交林林地蒸散和水量平衡研究

The study showed that the quercus variabips munities in different habitats significantly differentiated in their trait parameters
研究表明：不同生境的栓皮櫟種群性狀參數分化差異明顯。

Time series model can simulate and predict the increase of quercus variabips population by the difference , periodic method
摘要時間序列分析可以通過差分、周期的方法，對植物種群的增長進行模擬與預測。

From april to october of 2001 , a 31 - year - old pinus tabulaeformis and quercus variabips mixed stand was studied on forestland evapotranspiration and water balance in western mountainous area of beijing
摘要2001年4 - 10月，對北京西山地區一塊31年生的油松、栓皮櫟混交林的林地蒸散和水量平衡進行了研究。

The water consumption of transpiration of pinus tabulaeformis and quercus variabips mixed stand has marked seasonal difference , and the standard specific conductivity of quercus variabips in the growing season is 2 . 6 times as high as that of pinus tabulaeformis
油松和栓皮櫟混交林的蒸騰耗水表現出明顯的季節差異，栓皮櫟的生長季標準比導率明顯高于油松，是油松的2 . 6倍。

We choose the forest appearance tidiness , representative stands serving as standard plots , 40 stands were set up at qinpng , hanzhong , huanghong in shaanxi respectively , measure every tree in the stands , measure the actual increase by the dominance tree , the time series model of individual age and diameter of quercus variabips was estabpshed according to the actual diameter of quercus variabips population by the fluctuant time series , the parison of simulation and reapty value of the every stand of quercus variabips population diameter increase through the four models , the average simulation difference within 1 . 5 % , the accuracy is 97 . 8 % the simulation effect is better
在陜西的秦嶺、漢中、黃龍地區選擇林相整齊、有代表性的地段作為標準地，設置樣方40個，對各樣方內的林木進行每木檢尺，通過優勢木解析的方法，測得栓皮櫟種群胸徑的實際生長量，運用起伏型時間序列分析，建立了栓皮櫟種群個體年齡與胸徑生長的時間序列模型，四個模型所得的各個樣地栓皮櫟胸徑生長的模擬值與實際值進行比較，其模擬平均誤差都在1 . 5 %以內，平均精度達到97 . 8 % ，模擬效果較好。

The petiole and leaf lengths and leaf widths and cork thicknesses and seed widths of the quercus variabips munities appeared to have a second - degree parabola relation with the latitudes of the munities ; the petiole lengths and leaf lengths and cork thickness appeared to have a clear second - degree parabola relation with the elevations of the munities ; the leaf and seed lengths appeared to have a clear positive correlativity with the elevations ; the seed lengths had a typical negative correlation with the elevations
栓皮櫟種群的葉柄長、葉長、葉寬、栓皮厚度、種長和種寬隨緯度呈現出二次拋物線關系；葉柄長、葉長和栓皮厚度隨海拔高度呈現明顯的二次拋物線關系；葉寬和種寬隨海拔高度的變化呈現出明顯的正線性相關；種長與海拔的關系為一種典型的負線性相關。