免耕对农田土壤持水特性和有机碳储量影响的区域差异

李婧妤,李倩,武雪萍,吴会军,宋霄君,张永清,刘晓彤,丁维婷,张孟妮,郑凤君

Regional Variation in the Effects of No-Till on Soil Water Retention and Organic Carbon Pool

LI JingYu,LI Qian,WU XuePing,WU HuiJun,SONG XiaoJun,ZHANG YongQing,LIU XiaoTong,DING WeiTing,ZHANG MengNi,ZHENG FengJun

表4 不同耕作处理下土壤有机碳储量

Table 4 Soil organic carbon storage under different tillage

试验点 处理 有机碳储量 Organic carbon storage (t·hm-2) Site Treatment 0-10 cm 比CT提高 10-20 cm 比CT提高 20-40 cm 比CT提高 Increased than Increased than Increased than CT (%) CT (%) CT (%) 吉林公主（GZL） CT 19.04 ± 0.96b 15.59 ± 0.56b 23.21 ± 0.02a Gongzhuling, Jilin NT 27.69 ± 1.52a 45.4 24.71 ± 0.19a 58.5 19.37 ± 0.72b -16.5 山西寿阳（SSY） CT 28.41 ± 1.19b 27.12 ± 0.42b 56.55 ± 4.89a Shouyang, Shanxi NT 31.81 ± 0.52a 11.9 29.62 ± 0.14a 9.2 24.49 ± 1.66b -56.7 河北廊坊（HLF） CT 10.56 ± 0.63b 9.06 ± 0.32a 12.14 ± 2.48a Langfang, Hebei NT 12.99 ± 0.99a 23.1 7.66 ± 0.69b -15.5 4.96 ± 1.16b -59.1 山西临汾（SLF） CT 12.02 ± 0.67b 10.07 ± 0.58a 12.32 ± 2.67a Linfen, Shanxi NT 15.29 ± 0.62a 27.2 8.25 ± 0.33b -18.1 6.26 ± 1.12b -49.2 试验点 处理 有机碳储量 Organic carbon storage(t·hm-2) Site Treatment 40-60 cm 比CT提高 60-80 cm 比CT提高 0-80 cm 比CT提高 Increased than Increased than Increased than CT (%) CT (%) CT (%) 吉林公主（GZL） CT 16.87 ± 0.28a 8.61 ± 0.36a 83.33 ± 0.89b Gongzhuling, Jilin NT 11.07 ± 1.79b -34.4 6.24 ± 0.81b -27.5 89.32 ± 0.21a 7.2 山西寿阳（SSY） CT 28.68 ± 0.28a 11.69 ± 0.69a 154.09 ± 3.57a Shouyang, Shanxi NT 20.97 ± 0.14b -26.9 5.92 ± 0.09b -49.4 112.84 ± 1.81b -26.8 河北廊坊（HLF） CT 3.04 ± 0.31a 3.36 ± 1.96a 39.85 ± 1.75a Langfang, Hebei NT 1.45 ± 0.55b -52.3 0.85 ± 0.14b -74.7 27.37 ± 2.81b -31.3 山西临汾（SLF） CT 9.18 ± 2.06a 7.28 ± 1.32a 50.22 ± 4.06a Linfen, Shanxi NT 4.65 ± 0.29b -49.3 3.71 ± 0.17b -49.1 38.42 ± 0.45b -23.5