涝害

And the situation that the water unbalance in plant caused by soil water stress nimiety or high atmosphere humidity could seriously influence the plant growth、output and quality, is named as waterlogging.

而因土壤水分过多或过高的大气湿度引起植物体内水分失衡，进而严重影响植物生长发育、产量及产品品质的情况，称为水涝或涝害。

Soybean is sensitive to flooding and waterlogging stress, especially at early seedling stage as well as flowering and podding stages; On the other hand, there existed great difference in the tolerance to flooding or waterlogging in soybean germplasm, so utilizing tolerant cultivars is one of the most effective ways to improve the soybean production under flooding and waterlogging stresses condition.

长江中下游地区常有梅雨天气，大豆苗期易形成涝害。在前人研究我国大豆资源耐淹性的基础上，本文进一步研究我国和亚洲其他国家大豆育成品种苗期耐淹性的遗传变异，发掘优异资源；对耐淹性进行关联定位，寻找优异等位变异及其载体材料，并追索在后代育成品种中的累积。

The yield was sensitive to water supply during flowering and podding stage, in which the sensitivity was found podding stage （ R3 - R5 ）〉 flowering stage （R 1 - R3 ）〉 vegetative stage （V2 - R1 ）〉 the contribution of water supply to the yield formation was more central than potassium fertilizer application in light of controlling soil water at the same growth stage.

大豆对水分较为敏感的时期是开花期和结荚期，各时期敏感程度表现为结荚期〉花期〉营养生长期；同一生育时期控水下水分对大豆产量的影响要高于钾肥；旱涝都将影响大豆籽粒产量的形成，但干旱引起的减产程度要大于涝害。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。