黑土质量监测及修复技术研究进展OA

Black soil is a precious soil resource in the world.As a high-quality grain-producing base,it is crucial for maintaining global food security.The black soil region in Northeast China is one of the four major black soil regions in the world and has made significant contributions to China's food security.However,due to long-term cultivation and the impact of natural disasters,the quality of black soil has declined,and the trend of degradation is relatively severe.Therefore,it is imperative to conduct quality testing of black soil resources and propose targeted restoration strategies.This article provides a comprehensive summary of the current research status on black soil monitoring and restoration,detailing the construction of black soil indicator systems,the development of modern monitoring technologies,and inte-grated prevention and control techniques.Research shows that the current black soil monitoring indicators have evolved from single physicochemical indicators to comprehensive evaluation indicators that include biological indicators;monito-ring methods have progressed from sampling and analysis to comprehensive three-dimensional monitoring from the ground to the sky;restoration strategies have also shifted from single physicochemical improvements to integrated man-agement systems combining biological restoration with engineering measures.The article points out existing issues in black soil research,such as the lack of uniformity in biological indicators within black soil indicator systems and the in-tegration of multi-source data,providing a reference for future research efforts.