查询词典 moisture in the soil

The eco-physiological characteristics of drought endurance of Pinus sylvestris var.mongolica were studied under different climatic regions, soil water and leaf water condition.Furthemore,the response and adaptability of trees to water stress was done.The below showed the results. 1 The parameters of drought endurance of P. sylvestris var. mongolica was measure and studied by PV technology in the subhumid, semiarid and arid regions The results indicated the osmotic potentials at water saturation condition and at the initial loss turgor decreased as the climatic drought degree increased,and related linearly with the climatic moisture index.It was proved that the drought endurance of P. sylvetris var. mongolica was varible and the elevation of the osmotic adjust capability was a main way to the adaptation of trees to the drought climatic environment.

本文研究了樟子松(Pinus sylvestris var.mongolica)的主要耐旱生理生态特征在不同地区、不同土壤水分状况和叶水分状况下的变化，进而研究了樟子松对水分胁迫的反应和适应，结果如下： 1 应用 PV 技术对半湿润区、半干旱区和干旱区樟子松耐旱性指标测定研究指出，水饱和总体渗透势和初始失膨点总体渗透势随着气候干旱程度增加而增加，与气候湿度指标呈直线相关，证明了樟子松属于耐旱性可变的树种，渗透调节能力增加是其对干旱气候适应的主要途径。

Seedlings of one-year-old Broussonetia papyrifera L. were subjected to the drought stress of soil under different moisture conditions. The injury degree of cell plasma membrane and the correlative enzyme activity of plasma-membre protection system in the leaves of the seedlings were studied. Their relative conductivity, MDA content and activities of superoxide dismutase, catalase and peroxidase were measured.

以盆栽当年生构树幼苗为实验材料，研究不同程度土壤干旱胁迫下及复水之后构树叶片细胞质膜的伤害程度、丙二醛含量和其酶促抗氧化保护系统（超氧化物歧化酶SOD、过氧化氢酶CAT和过氧化物酶POD）的活性。

Phragmites australis, by TWINSPAN, and the community characteristics of each association were described. The result of the ordination for 41 samples by DCA revealed the relationships between the pattern of these communities and certain environmental factors, especially the moisture in soil.

样方的DCA排序结果较好地反映了植物群丛类型与环境因子，尤其是土壤含水量之间的关系。28种DCA排序结果较好地反映了群丛的生境特征，优势种的分布格局在很大程度上决定着植物群落的分布格局。

The paper analysed the dynamic characteristics of soil moisture in spring irrigation, irrigation plastochrone and crop growing period mainly because of the little impact of rainfall.

由于观测期间降雨对该区影响很小，主要分析了春灌期、灌溉间隔期和作物生长期土壤水分的变化特点。

The abnormal winter and spring snow coyer over the Tibetan Plateau can affect the atmospheric circulation and Asian summer monsoon precipitation in terms of changing ground surface albedo, temperature and thermal condition, absorbing heat and increasing the soil moisture through melting process at the end of spring.

高原冬春季积雪异常通过引起高原地表反射率、温度和感热的变化，以及春末融雪吸热和增加土壤湿度而影响大气环流的变化，最终引起亚洲夏季风降水的变化。

Result With young elm forest-pumpkin strip intercropping, since the branch tendril covered the gap between pumpkin planting-ditches and elm forest land, the soil moisture was remarkably increased. And the water use efficiency under intercropping increased by 23.7%-163.3% compared with the sole cropping. Elm-pumpkin strip intercropping changed the sequential succession trend of the grasses growing in the gap of the pumpkin planting-ditch, annual grasses became the dominant vegetation, and the feeding nutrient matter content and yield of the annual grasses increased significantly.

榆树幼林与南瓜间作后，瓜蔓覆盖地面，显著提高了南瓜行间和榆树林地的土壤水分含量，林－瓜间作地水分的利用效率较单作提高了23.7%~163.3%；间作改变了南瓜行间杂草群落自然演替的方向，一年生杂草成为优势物种，其饲用营养物质的含量和产量较林带间杂草显著提高。

The basis for effective utilization of rice straw as the biological material with moisture-keeping and drought-resisting for autumn corn growth in the no-tillage soil was provided.

［目的］为有效利用稻草作为稻茬免耕秋玉米的土壤－作物抗旱保水的生物材料提供依据。

Our results showed 1 The changes in trends of leaf traits response to the rainfall gradient differed either with species or with a specific trait; 2）The same trends were found at the functional group level, However, leaf traits for grasses tends to be less sensitive, then for forbs, and the legumes is the most sensitive functional group along the rainfall gradient, indicated that the Grass function group is quite strong to the soil moisture content tolerance, and which certainly explained to the local vegetation distribution and the substitution between species.

主要结论如下：1 叶片性状在降雨量梯度上的变化趋势在物种水平上表现出多样化的特点，性状的变化趋势是否有显著的格局取决于物种或特定性状。2 叶片性状对水分梯度的响应在功能群水平上表现出各自的特点，Grass功能群对水分梯度的响应敏感性较低，Forb居中，Legume表现出较强的敏感性，表明Grass功能群对水分的耐受性比较强，这在一定程度上解释了当地克氏针茅草原上目前以禾草类为主的现状，对物种之间的替代有一定的指示性。

Based on the data of continuous field plot experiments for five years in Luoyang, the influence of four different tillage practices, namely reduced tillage, no-tillage, subsoiling and conventional tillage on the soil moisture, water use efficiency and crop yields of winter wheat was studied.

采用连续5a的田间定位试验资料，研究了洛阳地区休闲期4种不同耕作方式对冬小麦农田土壤水分变化、水分利用效率及作物产量的影响。

Furthermore, the impact factor on runoff showed that, each stage has different impact factors, soil temperature and soil moisture above 65 cm plays a leading role in spring flood; in summer dry season, relation of soil temperature and moisture above 40 cm and runoff is negative correlation, the deeper soil temperature and soil moisture plays a leading role; temperature and precipitation plays a leading role in summer flood; in autumn dry season, the impact factors are soil temperature, soil moisture and temperature.

径流影响因子分析的结果表明：径流过程中不同时段具有不同的主导因子，春汛期主要是65cm以上的土壤温度和水分起主导作用；夏季枯水期40cm以上土壤水分与径流是负相关，深层地温和土壤水分起主导作用；夏汛期气温、降水起主导作用；秋季枯水期的影响因子依次为土壤温度、水分及气温。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。