ICS 65.020.01 CCS B 04 15 内蒙古自治区 地方 标准 DB15/T 3764—2024 草地碳储 量调查与核算技术规程 Code of practice for grassland carbon storage inve stigation and accounting 2024-12-18发布 2025-01-18实施 内蒙古自治区市场监督管理局 发布 DB15/T 3764 —2024 I 目次 前言 ................................ ................................ ................ III 1 范围 ................................ ................................ ............... 1 2 规范性引用文件 ................................ ................................ ..... 1 3 术语和定义 ................................ ................................ ......... 1 4 调查内容 ................................ ................................ ........... 3 调查指标 ................................ ................................ ....... 3 调查时间 ................................ ................................ ....... 3 调查频次 ................................ ................................ ....... 3 5 样地布设 ................................ ................................ ........... 3 布设原则 ................................ ................................ ....... 3 样地数量 ................................ ................................ ....... 4 样方设置 ................................ ................................ ....... 4 5.3.1 样方布设 ................................ ................................ ... 4 5.3.2 样方数量 ................................ ................................ ... 4 5.3.3 样方面积 ................................ ................................ ... 4 6 植被取样 ................................ ................................ ........... 4 植被地上生物量 ................................ ................................ . 4 枯落物生物量 ................................ ................................ ... 4 植被地下生物量 ................................ ................................ . 4 7 土壤取样 ................................ ................................ ........... 5 碳含量测定样品 ................................ ................................ . 5 7.1.1 采样深度 ................................ ................................ ... 5 7.1.2 土壤取样 ................................ ................................ ... 5 7.1.3 土壤回填 ................................ ................................ ... 5 土壤剖面样品 ................................ ................................ ... 5 7.2.1 土壤剖面 ................................ ................................ ... 5 7.2.2 土壤容重 ................................ ................................ ... 5 7.2.3 土壤砾石含量 ................................ ............................... 5 7.2.4 剖面回填 ................................ ................................ ... 6 8 碳含量分析 ................................ ................................ ......... 6 样品制备 ................................ ................................ ....... 6 8.1.1 植物样品 ................................ ................................ ... 6 8.1.2 土壤样品 ................................ ................................ ... 6 8.1.3 样品粉碎 ................................ ................................ ... 6 碳含量测定 ................................ ................................ ..... 6 8.2.1 有机碳含量 ................................ ................................ . 6 DB15/T 3764 —2024 II 8.2.2 土壤无机碳含量 ................................ .............................. 6 9 碳储量核算 ................................ ................................ .......... 6 面积累积法 ................................ ................................ ...... 6 9.1.1 样地尺度的碳密度计算 ................................ ........................ 6 9.1.2 区域尺度的碳储量核算 ................................ ........................ 7 遥感反演法 ................................ ................................ ...... 7 10 报告编制 ................................ ................................ ........... 8 附录A（资料性） 内蒙古不同 草地类型产草量的月动态系数