1.College of Biology and Environment, Nanjing Forestry University;2.College of Biology and Environment, Nanjing Forestry University, Nanjing
Soil is the basic resource supporting the healthy growth of plantation and the main site for nutrient transformation and biodiversity protection. To date, the decline of soil fertility is a serious problem in plantation management in China, which is an important factor restricting the sustainable management of forestry production and increasing the vulnerability of ecological security barrier. Therefore, it is necessary to deeply understand the influence process of plantation on soil fertility, and develop key control technologies to ensure the health and primary productivity of plantation. This paper systematically discusses the maintenance mechanism of plantation on soil fertility from the aspects of soil physical and chemical environment, soil biological community characteristics and functions, and discusses the ecological processes affecting soil fertility of plantation, such as forest age structure, stand density and tree species type. In the future, more attention should be paid to the coupling mechanism of soil physical and chemical properties and biological properties of plantations under environmental changes. At present, the accumulation characteristics of soil pathogenic bacteria in large-scale plantation are unclear, and the mechanism of soil diseases affecting plantation health needs to be revealed urgently. In the future, it is necessary to further quantify the interaction model among tree health, soil biology and environment, and form a comprehensive directional regulation system of plantation health from the afforestation, process management, symptom diagnosis and soil fertility regulation, so as to ensure the sustainable and multi-objective management of plantation health.
liu chaohua, li fengqiao, liao yangwenke, li xiaogang. Advances in Research on the Evolution and Maintenance Mechanism of Soil Fertility in Plantation[J]. Acta Pedologica Sinica,,[In Press]