水分资源

为充分利用土壤水分资源，合理安排农业生产提供了科学的参考依据。

The scientific referencebases have been provided for full use of soil moisture resources and rationalarrangement of agricultural production .

克隆植物构型的可塑性有可能促进其对斑块性分布土壤水分资源的利用，因而具有一定的生态学意义。

The architectural plasticity of clonal plants may enhance the exploitation of soil moisture resources , which have some ecological significance .

当地地下水位深20m左右，植物无法利用，植物种之间对资源的竞争主要表现为对水分资源的竞争，降水资源是植物种之间竞争的关键资源。

Where water table is about 20 m , the plants can not utilize underground water and the resource competition among the plant species mainly appears as the competition for water resources among which rainfall is key one for the plant species to compete for .

贵州省水分资源的农业气候分析

Analysis of agricultural climate concerning the water resources in Guizhou Province

高寒草甸地区冷季水分资源及对牧草产量的可能影响

Cold season resource and its effects on herbage production in the alpine meadow region

神木试区土壤水分资源状况

Soil Water Resource in The Shenmu Experimental Area

福建省自然条件优越，热量和水分资源丰富。

Fujian Province has a favorable natural environment with abundant water and heat resources .

为高效利用水分资源以及给冬小麦灌水制度的合理制定提供依据，采用水量平衡法，系统研究了不同时期单次灌水和两次灌水的冬小麦土壤水分变化动态。

The soil moister dynamics of winter wheat with irrigation at different stages were studied .

分析了高寒草甸地区冷季降水和土壤水分资源分布特征及其对牧草产量的可能影响。

The influence of cold season precipitation and soil moisture on herbage production in alpine meadow of Qilian mountains was analyzed .

由于这一地区的复杂而独特的地理环境，不同的地域的热量和水分资源的分配关系具有明显的特殊性。

Distribution relation of heat and water resources of different terrene has clear particularity because of complicate and special geographic environment of this area .

土壤是生态系统内最重要的养分和水分资源的调控者，在维持和稳定生态系统结构和功能的过程中发挥核心作用。

Soil is considered as the main nutrient and water provider , which plays key role in maintaining and stabilizing the structure and functions of ecosystem .

研究结果表明，水分资源供应水平越高，斑苦竹无性系的总生物量越大，同时，无性系分株的数目越少，而个体增大。

The results show as follows : 1.Clonal P. maculata accumulated more biomass and produced less but larger ramets under higher levels of water resource supply .

多熟种植是提高资源利用效率的有效途径之一，但严格受限于热量和水分资源。

The multiple cropping is one of the most effective practices to enhance the resources utilization , however it is strictly limited by quantity of heat and water resources .

在干热河谷中上段，光热资源较丰富，而水分资源不协调，导致水分构成了该地区发展的主要限制因子；

At the upside and middle part of dry-hot valley , ample light and heat resource were out of harmony with insufficient water resource , which made water a primary factor to limit development .

提高资源利用效率的途径有调整种植结构，引进作物新品种，提高作物产量，发展节水灌溉，合理开发利用水分资源等。

The ways to improve ratio of water utilization are to adjust plant structure , introduce new crops breeds , improve crops yield , exploit and utilize water resources rationally , develop water-saving irrigation , and so on .

并就该区的气候资源做出了有益的评价，除科学利用热量、水分资源外，特别对本地区光能资源和风能资源提出了开发利用的建议。

As for the climatic resources in this area , an useful evaluation was gained . Besides making scientific use of he - at and water resouces , in particular , the exploitation and utilization of resouces of solar energy and wind force are proposed .

在水分利用上资源开发潜力较小，提高利用率、大力发展节水工程是必然出路。

The potential of exploitation of water source is low .

土壤中的水分是水资源的重要形式之一，也是植物吸收水分的主要来源与水分循环的水源基地。

Soil moisture is one of the most important part of soil , and is one of the main source of plant water uptake and water cycle .

长江、黄河流域是中国最大的两个流域，支撑着中国人口最密集地区的水分和能量资源。

The Yangtze and Yellow River basins , the largest river basins in China , sustain the most densely populated region of China by providing water and energy resources .

本文从提高土壤水分和养分资源利用效率出发，研究与此有关的土壤水氮条件与作物根系生长的关系，以及适宜的水氮范围。

From the point of raising the use efficiency of soil water and nutrient , the relation between the roots development of the crops and soil water and nitrogen conditions , and the suitable range of soil water and nitrogen for root growth are studied in this paper .

一只母牛身体中所含有的水分占世界水资源的百分之多少？

What percentage of the world 's water is contained in a cow ?

水分循环与水分资源的更新

Water circulation and the renewable water resource

冀西北高原林地水分动态与水资源适度利用研究

Study on Water Dynamic among Belt of Stands on Forestland and Water Resource Moderately Used in the Northwest Plateau of Hebei Province

其次结合气候分析对研究区不同立地下的水分状况进行了研究；最后，为了有效利用当地的水分资源，研究了保水剂和肥料改良水肥状况的效果，并对树种水肥耦合效应进行了初步研究。

Then , combined with the climate analysis in trial areas , Water-Fertility of different tree species was studied . In order to efficiently utilize the local precipitation resource , the effect of water-retaining agents and late-model fertilizers on water utilization was discussed and water-fertilizer coupling was primary researched .