A kind of roof greening substrate and roof greening method

Abstract

The invention relates to a novel roof greening matrix and a roof greening method. The greening matrix comprises a core matrix and an auxiliary matrix, wherein the core matrix comprises a sludge compost product, garden waste fibers and a water retaining agent according to the weight ratio of (35-43):(55-65):(1-1.2); the auxiliary matrix comprises vermiculite and perlite; a ratio of the total weight of the core matrix to the weight of the vermiculite to the weight of the perlite is (68-82):(3-7):(15-25). The matrix provided by the invention can meet a roof greening soil utilization requirement, and sludge of a sewage treatment plant and garden waste can be effectively eliminated, and the aim of resource circulation is fulfilled; meanwhile, the greening matrix is light in material weight; raw materials are readily available; the cost is low; the fertilizer and water retaining effect is good; finally, the matrix is changed from a conventional state into a granular state, so that the problem of matrix loss can be effectively solved, and a slow release effect can be achieved; the growth of plant roots is facilitated; the specific construction and operation are facilitated; the novel roof greening matrix is suitable for the general popularization in the whole nation.

Description

technical field [0001] The invention relates to a roof greening technology, in particular to a roof greening substrate and a roof greening method. Background technique [0002] One of the trends in the development of modern architecture is to coordinate the building with the natural environment and introduce more green space into the building space. In this context, green roofs have been paid more and more attention. [0003] The effect of roof greening technology is manifested in many aspects, which can be roughly summarized as follows: (1) Alleviate the urban heat island effect and adjust the urban climate; (2) Roof plants can absorb toxic gases such as sulfur dioxide and nitrogen oxides, and retain dust , to purify the air in the city; (3) to alleviate the "dry island effect" of the city; the "dry island effect" of the city means that the relative humidity of the city is smaller than that of the suburbs; Evaporation of the soil matrix increases the moisture in the urban...

AI Technical Summary

Problems solved by technology

The above-mentioned substrates have heavy loads, high raw material prices, unsatisfactory water and fertilizer retention effects, and most of them are non-renewable resources, which are in violation of relevant national policies, and there are certain problems