GB/T 44590-2024 Guidelines for evaluation of ecological benefits of natural forest conservation and rehabilitation

GB/T 33027-2016 Methodology for field long-term observation of forest ecosystem GB/T 35377-2017 Indicators system for long-term observation of forest ecosystem GB/T 37364.3-2024 Code of practice for terrestrial wildlife and its habitat survey—Part 3:Mammals GB/T 38582-2020 Specifications for assessment of forest ecosystem services GB/T 38590-2020 Technical regulations for continuous forest inventory GB/T 39612-2020 Specifications for low-altitude digital aerial photography and data processing GB/T 40053-2021 Specification for construction on long-term observation research station of forest ecosystem GB/T 43648-2024 Tree biomass models and related parameters to carbon accounting for major tree species LY/T 1228-2015 Nitrogen determination methods of forest soils LY/T 1232-2015 Phosphorus determination methods of forest soils LY/T 1234-2015 Potassium determination methods of forest soils LY/T 2241-2014 Specification of biodiversity monitoring and evaluation for forest ecosystem LY/T 2258-2014 Technical regulation on methodology for tree biomass modeling SL 190-2007 HJ 613-2011 Soil determination of dry matter and moisture by weight method LY/T 1228-1999 Determination of total nitrogen in forest soil LY/T 1232-1999 Determination of total phosphorus in forest soil LY/T 1234-1999 Determination of total potassium in forest soil LY/T 1237-1999 Determination of organic matter in forest soil and calculation of carbon-nitrogen ratio