模拟增温和改变降雨频率对干旱半干旱区土壤呼吸的影响

韩丹, 李玉霖, 杨红玲, 宁志英, 张子谦

Effects of simulated temperature increase and change of rainfall frequency on soil respiration in arid and semi-arid areas

Dan Han, Yulin Li, Hongling Yang, Zhiying Ning, Ziqian Zhang

表1 培养土壤基本性状（0—10 cm）

Table 1 Physical and chemical properties (0-10 cm) of incubated soil

土壤性状 测定值 土壤性状 测定值 黏粉粒含量/% 9.6 有机碳含量/(g·kg-1) 1.72 极细砂含量/% 14.8 全氮含量/(g·kg-1) 0.22 中粗砂含量/% 75.6 碳氮比 7.8 最大持水量/% 5.9 pH值 7.84 容重/(g·cm-3) 1.59 电导率/(μS·cm-1) 23