红砂土

采用14C底物标记技术测定了三种不同质地（红砂土菜地、黄筋泥桔园和茶籽园）的红壤微生物生物量C的周转期。

A 14 C-labelling technique was used to study turnover of microbial biomass C of 3 red soils with different texture , i.e .

稳定红砂土软质集料基层的干缩特性研究

Study on the dry shrinking property of stabilized red sand soil soft aggregate pavement base

并且利用粉质红砂土修筑了一段双向土工格栅加筋路堤。

And use the red gritstone silt soil build an embankment which reinforced by two-way tensioned georgia .

进一步将掺水泥、石灰的改良红砂土浸出液作为水解液进行崩解试验，得到了可采用掺石灰对红砂岩的崩解性进行抑制的工程处治对策。

Further slaking tests were conducted by taking slaking solution which leaches out from red sand mixed with cement or lime , obtained the treatment countermeasures to inhibit red sandstone slaking by mixing with lime .

从而确定了用微波炉法快速、精确的测定红粘土和砂土含水量的方法。

So , we got a rapid 、 precise method of determining moisture content in soils with the microwave oven method .

第4组的综合得分≤-1.51，包括红粘土和砾石红砂土2个土样，该组的养分水平最低。

The fourth group consisted of 2 soil samples with general score ≤ -1.51 and showed the lowest soil nutrient status .

结果表明：红砂岩发育红壤（红砂土）的矿化量和供氮量显著高于第四纪红黏土（红黏土），同一母质中轻度侵蚀红壤的矿化量和供氮量又显著高于重度侵蚀红壤。

Results showed that the amount of soil N mineralized and supplied to plant in the soil derived from red sandstone was higher than in that derived from Quaternary red clay .

并根据红砂岩的工程特性来进行的施工工艺研究，就能够改善红砂岩崩解形成的红砂土的路用性能，以满足路用填料工程性能的要求，从而进一步控制和保证了工程质量。

And based on the engineering characteristics of red sandstone , we study the construction technics to improve road capabilities of its collapse soil to conform to the requirements of the standard or rule , then to control and ensure engineering quality .