降水量变化与氮添加下荒漠草原土壤酶活性及其影响因素

朱湾湾, 王攀, 许艺馨, 李春环, 余海龙, 黄菊莹

Soil enzyme activities and their influencing factors in a desert steppe of northwestern China under changing precipitation regimes and nitrogen addition

ZHU Wan-Wan, WANG Pan, XU Yi-Xin, LI Chun-Huan, YU Hai-Long, HUANG Ju-Ying

表2 试验处理及其代码

Table 2 Experimental treatments and their abbreviations

试验处理 Experimental treatment 降水量减少50% 50% reduction in precipitation 降水量减少30% 30% reduction in precipitation 自然降水量 Natural precipitation 降水量增加30% 30% increase in precipitation 降水量增加50% 50% increase in precipitation 0 g N·m-2·a-1 W1N0 W2N0 W3N0 W4N0 W5N0 5 g N·m-2·a-1 W1N5 W2N5 W3N5 W4N5 W5N5