A light water-retaining matrix suitable for greening of low-load reconstructed roofs and a method for preparing the same
A roof greening and water-retaining technology, applied in the agricultural field, can solve the problems of light weight and water-retaining, and achieve the effect of solving the contradiction between bulk density and water-holding, good drainage and comprehensive nutrition
Inactive Publication Date: 2017-07-28
SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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Problems solved by technology
[0006] The purpose of the present invention is to provide a lightweight water-retaining matrix suitable for low-load reconstruction of roof greening and its preparation method. The lightweight water-retention matrix suitable for low-load reconstruction of roof greening and its preparation method should solve the current problems There is a contradiction between substrate bulk density and water retention in the reconstruction of roof greening in technology, and the technical problem that light weight and water retention cannot be balanced
Method used
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Embodiment 1
[0030] Measure 30 parts by volume of coconut peat, 15 parts by volume of cow dung organic fertilizer, 15 parts by volume of peat, 30 parts by volume of vermiculite and 10 parts by volume of zeolite. The raw materials are all sieved by particle size, and the organic materials are pre-treated by air drying. After mixing the above ingredients, put them in a blender and mix well. The measurement results show that the pH of the matrix product of this formula is 7.14-7.48, the EC is 0.83-1.24mS / cm, the water content is 34-41%, the organic matter content is 44-52%, and the dry bulk density is 0.39-0.47Mg / m 3 , wet bulk density 0.94-1.02Mg / m 3 The total nutrient content is 3.66-4.09%.
[0031] When this formula matrix is used in the roof greening reconstruction project of Shanghai Environmental School, the load and water holding capacity are better than ordinary planting soil. See figure 1 and figure 2 .
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Abstract
The invention provides a light water-retaining matrix suitable for greening of low-load reconstructed roofs. The light water-retaining matrix contains 12-30 volume parts of organic fertilizer, 15-45 volume parts of coco coir, 10-30 volume parts of turf, 15-25 volume parts of vermiculite and 10-35 volume parts of zeolite, wherein the content of organic matter is greater than 30%, the total nutrients are 2-5%, the pH is 5.5-7.5, the EC is less than 3.5mS / cm, the water content is 25-45%, the total porosity is 60-75%, the dry bulk density is 0.25-0.5 Mg / m<3>, and the wet bulk density is 0.65-1.05Mg / m<3>. The invention also provides a method for preparing the light water-retaining matrix. The light water-retaining matrix has the advantages of excellent drainage, water-retaining property and fertilizer-retaining property and overall, balanced and quickly-slowly successive nutrients; the materials are easy to obtain; the matrix product is suitable for greening of low-load roofs in cities and plays an active role in promoting improvement of urban ecological environment quality.
Description
[0001] Technical field: [0002] The invention relates to the field of agriculture, in particular to landscaping technology, in particular to a water-retaining substrate, in particular to a lightweight water-retaining substrate suitable for low-load reconstruction of roof greening and a preparation method thereof. [0003] Background technique: [0004] Roof greening is a greening method that takes the top of the building or structure as the carrier, uses plants as the main body, and is not in contact with the ground soil. It is a general term for various roof planting methods. Roof greening is also the main form of urban greening expanding to three-dimensional space. Lightweight roofs, especially remodeled roofs, have extremely low load requirements. The roof greening cultivation substrate focuses on solving the problems of the original soil in low-load roof greening. [0005] Invention content: [0006] The purpose of the present invention is to provide a lightweight water...
Claims
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IPC IPC(8): A01G31/00C05G3/00
CPCA01G31/00A01G24/00A01G24/35C05D9/00C05G3/00C05F3/00C05F5/002C05F11/02
Inventor 张浪郝冠军郑思俊崔心红李跃忠梁晶王啸宇朱义郭璐
Owner SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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