降雨量和土壤氮含量对半干旱沙质草地生产力的影响

张晶, 左小安, 吕朋

Effects of soil nitrogen content and rainfall on vegetation productivity in semi-arid sandy grassland

Jing Zhang, Xiaoan Zuo, Peng Lv

表1 2021、2022年研究区生长季降雨

Tabel 1 Rainfall during the growing season in the study area in 2021 and 2022

月份 2021年 2022年 CK -60d +60d -60% +60% CK -60d +60d -60% +60% 合计 316.6 227.2 406.0 126.64 506.56 380.00 191.6 568.4 152.00 608.00 5 8.4 0.0 16.8 3.36 13.44 15.40 0.0 30.8 6.16 24.64 6 81.0 0.0 162.0 32.40 129.60 173.00 0.0 346.0 69.20 276.80 7 159.0 159.0 159.0 63.60 254.40 50.40 50.4 50.4 20.16 80.64 8 68.2 68.2 68.2 27.28 109.12 141.20 141.2 141.2 56.48 225.92