论文部分内容阅读
以小白菜各时刻的叶、茎、根干重、鲜重、死亡量、叶面积、土壤含水量等实测数据，建立了各器官的干物质分配函数、死亡函数、以及蒸发蒸腾函数，等。同时，利用小白菜光合作用和呼吸作用的有关数据，建立了光合速率和呼吸速率函数，将各函数组装得到小白菜生长发育的微分方程模拟模型。模型以温度、光照时间、光强以及降水量为输入，可输出各时刻的叶、茎、根干重，可利用的干物质重，以及土壤含水量，耦合已建立的其它模型，还可输出单株面积，单株叶面积，单株叶鲜重及单株叶片数，给出了模拟模型与斜汶夜蛾ＳＪＮＰＶ流行病系统的耦合方法。
The dry matter partition function, death function, and evapotranspiration function of each organ were established based on the measured data of leaf, stem, root dry weight, fresh weight, dead weight, leaf area and soil water content of Chinese cabbage. At the same time, using photosynthesis and respiration of pakchoi data, the function of photosynthesis rate and respiration rate was established, and the differential equations of growth and development of pakchoi were simulated by using each function. The model takes temperature, light time, light intensity and precipitation as input, and outputs the dry weight of leaves, stems and roots, available dry matter weight and soil water content at each time, and outputs other models Plant area, leaf area per plant, fresh weight of leaves per plant and number of leaves per plant, and the coupling method between the simulated model and the SJNPV epidemic system was established.