荒漠草原典型灌木群落土壤养分多年变化与驱动因子

王浩伊, 俞潇, 辛智鸣, 马媛, 罗凤敏, 李星, 崔健, 卢嘉华

Long-term changes and driving factors of soil nutrients in typical shrub communities of the desert steppe

Haoyi Wang, Xiao Yu, Zhiming Xin, Yuan Ma, Fengmin Luo, Xing Li, Jian Cui, Jiahua Lu

表1 3种灌丛植被特征调查汇总

Table 1 Summary of vegetation characteristics investigated for the three shrub species

灌丛类型 样地编号 灌丛与草本植物种类 灌丛平均高度/cm 灌丛平均冠幅/cm2 灌丛和草本所有物种密度总和 2006 驼绒藜 1-1 4 32 41×40 16 1-2 4 22 38×32 22 1-3 6 32 40×37 48 霸王 2-1 8 66 156.5×143.5 9 045 2-2 6 73.25 126.25×112.25 59 2-3 8 76.75 131×113 753 四合木 3-1 11 41.67 104.33×73.33 467 3-2 11 55 126.5×112.5 95 3-3 10 68 132×128 136 2016 驼绒藜 1-1 6 43 63×55 44 1-2 4 38 56×52 30 1-3 7 46 53×42 84 霸王 2-1 8 91 164.33×134.67 72 2-2 10 96.25 135.5×124.75 160 2-3 10 80.75 124.75×103.75 33 四合木 3-1 12 55.5 120.0×117.5 126 3-2 9 39 73.5×70 103 3-3 9 35.38 70.25×60 226 2021 驼绒藜 1-1 6 41.67 47.67×42 57 1-2 7 37.5 49.0×45.5 132 1-3 9 15 38×22 332 霸王 2-1 13 58.67 168.33×139.67 293 2-2 17 58.75 89×75 187 2-3 14 61.6 138.4×99.6 148 四合木 3-1 9 43.33 110×101 2 794 3-2 10 46 102×89 385 3-3 10 34.9 72×67 121