田间含水量

Two years old seedlings of Elaeagnus mooceroftii and Elaeagnus oxycarpa were chosen and planted in field, then treated by different mount of irrigation in Moyu county of Xinjiang. The relative mean soil water contents of different irrigating treatment were 85%, 70%, 47% and 24%.

在新疆和田墨玉县选取2年生大果沙枣和尖果沙枣实生苗，移植于苗圃对其进行不同灌水量的处理，不同处理的土壤含水量分别为田间持水量的85%、70%，47%和24%。

When soil water content exceeds field capacity, the reducement of air in soil will cause the root breath weaken, or plant death.

此时土壤的含水量超过了田间持水量，在严重的淹水情况下，土壤中空气减少，会造成根系因缺氧而呼吸减弱，长时间如此还会引起植物死亡。

When moisture suction was 100-400cm,the water was between field moisture capacity and capillary disrupting moisture, and the water was the most efficient.

水吸力在100-400×102Pa时，土壤水分处于田间持水量到毛管断裂含水量之间，水分有效性最大。

Soil physical properties(Water saturated content、Field capacity、Capillary porosity、Non-capillary porosity、The total porosity) The number of micro-organisms(bacteria,fungi and actinomycetes)、activity of the enzyme and nutrient content (Organic matter、TN、AN、P、AP) In the two types of landscape are reflected in the type of surface(0-20cm) higher than the sub-surface(20-40cm).

2土壤物理性质(饱和含水量、田间持水量、毛管孔隙度、非毛管孔隙度、总孔隙度)、微生物数量、酶活性(过氧化氢酶、脲酶和蔗糖酶)及养分含量(有机质、全氮、有效氮、全磷、速效磷)在不同景观及其界面中均表现为表层(0-20cm)高于亚表层(20-40cm)。

According to the mensuration and analysis of soil permit heaviness, soil moisture, soil maximum moisture, corn yield, the article researched the effects of subsoiling and no-tillage on soil physical characters and corn yield in second temperate zone of Heilongjiang province.

通过对土壤容重、土壤含水量、土壤田间持水量及产量的测定和分析，研究了深松免耕技术对黑龙江省第二积温带土壤物理性状及玉米产量的影响。

The results showed that tillage had stronger compaction effect on Red soil. By analyzing retention properties, water content was higher in the same suction for Red soil. Field capacity and wilting coefficient were higher for Red soil than those for Lou soil, but effective moisture and saturated hydraulic conductivity were lower for Red soil. For Red soil, Lateral infiltration ability was stronger, infiltration rate was greater than one number degree for Lou soil and preferential flow occurred easily.

结果表明：耕作片红壤有较强的压实作用；从持水特征分析，同一吸力下红壤的含水量较高，田间持水量和凋萎系数也高于塿土，而有效水含量略低于塿土，饱和导水率却低于塿土1个数量级；从入渗特征分析，红壤的侧渗能力很强，入渗率比塿土高1个数量级，容易发生大孔隙流。

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。