深松与免耕频次对黄土旱塬春玉米田土壤团聚体与土壤碳库的影响

张琦,王淑兰,王浩,刘朋召,王旭敏,张元红,李昊昱,王瑞,王小利,李军

Effects of Subsoiling and No-Tillage Frequencies on Soil Aggregates and Carbon Pools in the Loess Plateau

ZHANG Qi,WANG ShuLan,WANG Hao,LIU PengZhao,WANG XuMin,ZHANG YuanHong,LI HaoYu,WANG Rui,WANG XiaoLi,LI Jun

表6 土壤碳库管理指数

Table 6 Soil carbon pool management index

土层 Depth (cm) 处理 Treatment 碳库指数 CPI 碳库活度 A 碳库活度指数 AI 碳库管理指数 CPMI 0-10 NNS 1.03a 0.50a 1.46a 150.00a NS 1.04a 0.34b 0.99b 102.18b S 1.00b 0.34b 1.00b 100.00b 10-20 NNS 1.18a 0.23b 0.81b 95.94ab NS 1.12a 0.24b 0.87b 97.13ab S 1.00b 0.28a 1.00a 100.00a 20-30 NNS 1.02a 0.39a 1.38a 140.69a NS 0.94b 0.30a 1.08b 101.73b S 1.00a 0.28a 1.00b 100.00b 30-40 NNS 0.80b 0.93a 3.42a 275.09a NS 0.95b 0.65b 2.42ab 229.13a S 1.00a 0.27c 1.00b 100.00b AVG NNS 1.01a 0.51a 1.77a 165.43a NS 1.01a 0.39b 1.34ab 132.54ab S 1.00a 0.29b 1.00b 100.00b