The study on the proposal an integrated ecological model directed to zero emissions of households whose livelihood is planted rice in the Mekong delta

Abstract

The research has proposed the model of integrated farming production towards zero - emissions based on the foundation of rice farming cultivation. The model of application of ecological solutions, the turnaround, and self-contained energy flow solutions with taking advantage of the existing ecological and environmental conditions of the locality help to maintain livelihoods for the people. Model of a typical application for the household cluster in Dinh Thanh, Thoai Son, An Giang province. The result shows that a straw volume used for the planting of straw mushrooms brings new sources of income to increase the 7.000.000 VND mushroom crop in 40 days, in addition, the rotting medium for growing straw mushrooms, which can be used the flowers to bring effectively revenues in the idle time. At the same time, 2m3/day of livestock and wastewater is processed and reused for agriculture, 39.065,31 tons/year collected in the form of biological gases serving cooking and the amount of straw 6-7 tons of straw/ha is reused by producing Biochar for agriculture, improve the land, improve the efficiency of fertilizer use for households to ensure the requirements of environmental protection, reduce the dependence of existing livelihoods on external factors such as prices, food, human,…. After using Biochar combined with manure for rice fields, helping people reduce 50% of the cost of using chemical fertilizers/ha, equivalent to 5,000,000 VND/ha. This can be seen as the best-integrated model for households whóe the main inheritance is rice cultivation combining livestock, the ability to apply long-term and can easily develop on a wide area, as well as increasing the likelihood of linking for many households to create mutual support in the case of a residential cluster with other livelihood activities besides rice cultivation.