Gradual terrace transformed method for dry hillside field of sisal hemp in dry and hot region

Abstract

The invention provides a gradual terrace transformed method for a dry hillside field of sisal hemp in the dry and hot region, relates to the field of region water and soil maintenance, and specifically relates to the gradual terrace transformed improving method for the dry hillside field. The invention aims to effectively reduce soil erosion and form a long-term protective belt at the same time, achieves the gradual terrace transformed improvement of the dry hillside field in the dry and hot region, and develops and utilizes the improved regional field. The adopted technical scheme comprises the steps of determining a gradual terrace transformed scheme based on the geology and terrain characteristics, namely Torrid red soil or vertisols of a dry and hot rive valley, of the target zone, planting sisal hemp to form a sisal hemp biological barrier protective belt, and utilizing the rigid and anti-corrosion feature of sisal hemp leaves to form a partition net of water-sand on slopes, which is the key technical step; according to targets of related regional treatment or development, gradually cultivating protective terrace edges, meanwhile, achieving gradual terrace transformation of the dry hillside field in the dry and hot region through depending on the transporting effect of natural water erosion and the effect of manual assistant management, constructing sisal hemp ecological barrier protective edges of the treatment region target terrace, and forming an efficient, economic and long-term terrace transformed technique.

Description

technical field [0001] The invention relates to the field of regional water and soil conservation, in particular to a step-by-step transformation method for dry slope land. Background technique [0002] my country's dry and hot valleys are mainly distributed in the upper reaches of the Yangtze River, with low vegetation coverage, high soil erodibility, and serious soil erosion. At the same time, this area is rich in light and heat resources, and is an important production base for characteristic agricultural products such as vegetables and tropical fruits. The sharp contradiction between the fragile and prominent environmental problems and the land development needs of economic and social development has become an important problem to be solved in regional development. Among them, the terraced land of dry slopes can significantly reduce soil erosion and increase the land area available for agriculture and forestry. Become the main method to alleviate this contradiction, and ...

AI Technical Summary

Problems solved by technology

Its shortcomings are: lack of reasonable planning for areas that need to be treated, lack of reasonable management and protection measures for the main technical measures of "planting sisal in native bushes", and "digging pits in the middle of the planted sisal grid to plant suitable land and suitable for growth". The lack of more operable details of the technical measures of the "economic tree species" leads to the reduction of the overall operability of the technical measures, and the comprehensive benefits are mainly restricted by the operator's understanding of the suitable sisal varieties and fruit trees in the dry-hot valley; at the same time, The main reason for the difficulty in popularizing and applying the technology is that the target of further land use in the improved area is unclear

Its shortcomings are: the main technology involves multiple species such as acacia, leucaena, yellow flower tree, sisal hemp, Zanthoxylum bungeanum, etc. The management technologies of corresponding species are quite different, and comprehensive implementation is difficult; Conservation Vegetation Management

At the same time, this technology also has problems such as unclear land use goals in improved areas, resulting in poor sustainability of economic benefits.

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