Rock slope zoology green-recovery planting stroma

Abstract

The invention discloses a rocky side slope ecological greening cultivation matrix, belonging to the vegetation cultivating technical field. The components and weight percentages of compositions of components of the matrix are as follows: 22-57 percent of organic matter, 2-5 percent of turf, 1-2 percent of grass fiber, 37-72 percent of raw soil or doras, 0-2 percent of rice chaff, 0.02-0.08 percent of water retention agent, 0.04-0.07 percent of caking agent and 0.04-0.07 percent of fertilizer. The invention has a reasonable distribution of each component and harmonious functions. The substitution of organic matter, grass fiber and rice chaff with low price and high quality for turf lowers cost. The additive fertilizer is mainly the slow release nitrogen fertilizer and the phosphate fertilizer and potash fertilizer are synthesized and mixed of different contents according to the nutrition characteristic of pioneer plant combination. Capable of supplying nutrition in the long run and stably and being popularized and applied in rocky side slope ecological greening project, the invention is characterized in light weight, a loose structure, good moisture retention and nutrient preserving.

Description

technical field [0001] The invention relates to the technical field of vegetation cultivation, in particular to a novel cultivation substrate for greening rock slopes. technical background [0002] Large areas of exposed rocky slopes such as mines, quarries, and expressway traffic arteries not only destroy vegetation and damage natural landscapes, but also easily cause soil erosion and geological disasters such as rock landslides, posing a threat to traffic safety. Because rocky slopes are mostly semi-weathered or unweathered rock mass, with high hardness and low soil composition, it is difficult for plants to take root and grow, and they cannot get supplemented by underground water. Therefore, greening projects on rocky slopes are more difficult. . At present, foreign soil spraying technology is generally used for artificial regreening, that is, to create a layer of cultivation substrate on the rocky slope that is suitable for the growth and development of pioneer plants, ...

AI Technical Summary

Problems solved by technology

At present, foreign soil spraying technology is generally used for artificial regreening, that is, to create a layer of cultivation substrate on the rocky slope that is suitable for the growth and development of pioneer plants, and can not be washed out, and has a stable structure, and is conducive to the growth of native plants. Invasion, in order to prevent soil erosion and restore the natural landscape, but it is often difficult to achieve

First of all, the composition and compounding of the cultivation medium is the key technology, because the nutrients and water required for the growth of pioneer plants need to be supplied by the substrate, and considering the weight of the substrate and the resulting safety hazards such as substrate shedding, spraying The matrix should not be too thick, the current construction is generally only 10cm-15cm, and as disclosed in the patent application CN 200510098266.5, the spraying thickness is 3-40cm, which is difficult to achieve in rocky slopes with large slopes, so in Whether the finite volume (thickness) of the matrix layer can meet the nutrients and water required for the long-term growth of pioneer plants has become the key to the success of rock slope greening; secondly, the matrix formula currently used is generally based on peat and the biological factors of the construction site. Soil is used as the main material, and other materials such as compound fertilizer, water-retaining agent, adhesive and plant fiber are added. For example, in the invention patent ZL 02104143.1, peat is used as the main material, accounting for 50-65% of the total weight of the substrate, but peat is used as a In the short term, non-renewable resources should not be consumed in large quantities, and they are mainly produced in Northeast China, and the cost of using them in different places is relatively high; in addition, due to the differences in physical properties between peat and soil and other materials, stratification is prone to occur when spraying with high pressure This phenomenon often makes peat float on the surface of the substrate, and it is difficult for water to penetrate after drying, which affects the growth of rock surface plants; at the same time, most of the fertilizers used in the substrate formulations in the past are mainly ordinary compound fertilizers, because nitrogen is easy to leaching , can not meet the needs of long-term growth of plants, although a small number of existing technologies have also adopted slow-release fertilizers, but did not consider the nutritional characteristics of the combination of pioneer plants, so that although the pioneer plants can be rapidly grown and regreened in the year of spraying, but Before the native plants invaded, the pioneer plants had gradually turned yellow and died, failing to form a stable plant ecosystem