Community optimization method of low efficiency-water conservation forest

Abstract

The present invention relates to a community optimization method of a low efficiency-water conservation forest. The method comprises the steps of surveying an indigenous plant community, and determining the current and historical distribution of the indigenous plant community; evaluating the plant community, and screening a plurality of introduction after-culture species facilitating improving a water conservation function; configuring two varieties or more than two varieties of trees of different ages for the landscapes of the low efficiency-water conservation forest according to the above screened introduction after-culture species to increase the degree of heterogeneity of the plant community in the horizontal space; managing the low efficiency-water conservation forest according to the main characteristics and the degeneration reasons of the community of the low efficiency-water conservation forest. The method of the present invention enables the water conservation function of an ecological system to be improved, at the same time, considers the coupling functions, such as the biodiversity protection, the soil conservation, etc., and promotes the healthy, stable and long-term development of the ecological system.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration and relates to a community optimization method for low-efficiency water conservation forests. Background technique [0002] With the development of society and economy and the increase of population pressure, my country is facing the threat of more and more serious ecosystem degradation. Since the 1950s, my country has carried out a series of ecological restoration projects, such as the "Three North" shelterbelt construction, the Beijing-Tianjin sandstorm source control project, and the project of returning farmland to forests. However, some forest stands have problems such as single tree species, fragile structures, and unsuitable habitats, which lead to phenomena such as "little old trees", "underforest deserts", and forest death, resulting in the failure of the normal ecological service function of the forest or its own degradation. But unable to play, forming the so-called low-...

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Problems solved by technology

The emergence of low-efficiency water conservation forests has seriously affected the realization of the water conservation function of the ecosystem, which is not conducive to the protection of biodiversity, resulting in large-scale loss of soil, severe damage to the ecosystem, and is not conducive to promoting the health of the water conservation forest community , stable and long-term development, it is impossible to realize the comprehensive improvement of ecological structure, ecological function and ecological benefit

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