国家土壤肥力监测点
national soil fertility long-term monitoring sites
土壤环境质量监测与评价
monitor and evaluation for soil environment quality
土壤侵蚀宏观监测
soil erosion macro-monitoring
土壤墒情监测
Soil moisture content monitoring
土壤养分监测
Monitoring of soil nutrient
土壤与养分流失综合监测
Integrated monitoring method