soil available water

3 , choosing proper cultivation in order to increase soil available water storable capacity ;

合理耕作，扩大土壤有效水库容；

Though the wilting coefficient of soil tend to increase as water retaining agents increased , the amplitude was low , so the soil available water capacity augmented obviously .

土壤凋萎系数虽有增大趋势，但增幅很小，土壤有效水容量明显增大。

Study on interactive mechanism between soil available water and fertilizers and its application ⅰ . the salt index of fertilizers

土壤有效水分与化肥相互作用机理及其应用研究&Ⅰ.化肥的盐（度）指数

An approach on soil available water content , utilization status , penetrability of fuel-forest land also was studied in this paper .

还对林地有效水的含量及利用状况、土壤的渗透特征进行了探讨。

In soil-plant-atmosphere system , soil available water content , crop water consumption , and effective precipitation are the main factors in water balance equation of farmland .

在土壤－植物－大气系统中，土壤有效水分贮存量、作物耗水量和有效降水量是农田水分平衡的主要组成因子。

Changes of catalase activity were closely relevant with soil available water . Catalase activity was higher in the treatment of lower maximum allowable depletion .

过氧化氢酶活性的变化与灌水和土壤水分状态密切相关，灌水控制下限较低时，灌水处理后各土层过氧化氢酶活性较高，频繁少量的灌水能促进各土层过氧化氢酶活性的不断提高。

INTERACTIVE MECHANISM BETWEEN SOIL AVAILABLE WATER AND FERTILIZERS AND ITS APPLICATION II . Tth effect of fertilizers on soil water retaining capacity and solute-potentiality

土壤有效水与化肥相互作用机理及其应用研究&Ⅱ.化肥对土壤持水与溶质势的影响

Soil available water capacity ( AWC ) plays an important role in the evaluation of drought resistance of soil , planning and managing water resources and conducting irrigation .

土壤有效含水量（AWC）是评价土壤抗旱性、水资源规划和管理以及指导灌溉的重要依据。

The total soil available water storage in 80 cm depth ranged from 102.4 mm to 182.2 mm , averaged 156.5 mm , also demonstrating the hardwoods were superior to the conifers . The filbert bush was in medium .

80cm土层的有效蓄水能力为102.4～182.2mm，平均值为156.5mm，都表现为阔叶林大于针叶林，灌丛居于中间。

Soil available phosphorus and water solvable phosphorus have significant correlation with different phosphorus rate .

不同的施磷量，土壤速效磷和水溶性磷含量的相关性达极显著。

Sandy soil has more available water and less unavailable water than clayey soil .

不同烟区土壤中，砂质土壤可利用的有效水量明显高于粘质土壤，而所保蓄的无效水却很少。

Soil available P , water content and pH value are higher in wet part soil of drip irrigation than that in non-wet part and in furrow irrigation plot .

滴灌条件下根围润湿区土壤可以经常保持较高的含水量，pH高于根外非润湿区和畦灌区，其土壤有效磷的含量高，而土壤有效铁的含量较低。

A more disturbing thought is that we may in the longer term be approaching the limits of our ability to exploit the natural resources required for food production – crude oil , cultivable land , soil fertility and available fresh water , to name a few .

一个更令人不安的想法是，长期而言，在开发利用粮食生产所需的自然资源方面，我们可能已接近能力极限。这些资源包括原油、可耕地、土壤肥力及可用淡水等等。

We then analyzed the sensitivity of grain yield to solar radiation , rainfall , soil depth , soil plant available water , and runoff curve number , comparing simulated yields to those with the original , standard data sets .

以此为基础，分别分析了产量对太阳辐射、降雨、土壤层厚度、土壤有效水分以及径流曲线数变化的敏感性。

Soil water holding capacity and soil available water in plantations in the Loess Region

黄土区人工林的土壤持水力与有效水状况

Especially , soil originated from carbonate rock has higher release rate of soil water and lower available water suction comparison with soil from other rock in the same region such as red soil .

尤其是石灰岩发育的土壤，与同区域其它岩类发育的土壤（红壤）相比，其释水速率更快并且有效水吸力更低，这一特殊的土壤水分物理特征应是岩溶干旱的土壤内在机制。

The sub-model of predicting soil water content analyses comprehensively their dynamic changes and tells in advance the actual evapotranspiration of farmland and soil available water content in the future .

土壤水分预报模型综合分析了它们的动态变化，给出了未来农田实际蒸散量和土壤有效水分含量；

Under integration of soil hygroscopic coefficient and maximum water holding capacity , a proper mixing ratio of tailing sands to soil can decrease the wilting point , increase the range of soil available water and increase soil drought resistance .

综合吸湿水和最大吸水量，适当的掺砂比例可以降低土壤凋萎系数，增加有效水的含量范围，从而能提高土壤抗旱能力。