毛乌素沙地沙丘不同固定阶段黑沙蒿叶性状特征

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代远萌¹^,², 李满乐¹^,², 徐铭泽¹^,², 田赟¹^,²^,³^,^*(

), 赵洪贤¹^,², 高圣杰¹^,², 郝少荣¹^,², 刘鹏¹^,²^,³, 贾昕¹^,²^,³, 查天山¹^,²^,³

Leaf traits of Artemisia ordosica at different dune fixation stages in Mau Us Sandy Land

DAI Yuan-Meng¹^,², LI Man-Le¹^,², XU Ming-Ze¹^,², TIAN Yun¹^,²^,³^,^*(

), ZHAO Hong-Xian¹^,², GAO Sheng-Jie¹^,², HAO Shao-Rong¹^,², LIU Peng¹^,²^,³, JIA Xin¹^,²^,³, ZHA Tian-Shan¹^,²^,³

图4. 毛乌素沙地沙丘不同固定阶段黑沙蒿叶性状主成分(PC)分析结果。A, 黑沙蒿主要叶性状载荷。B, 黑沙蒿叶性状对沙丘固定不同阶段的响应。A_max, 最大净光合速率; C:N, 叶碳氮比; LA, 叶面积; LCC, 叶碳含量; LDMC, 叶干物质含量; LNC, 叶氮含量; LPC, 叶磷含量; LT, 叶厚; LTD, 叶组织密度; N:P, 叶氮磷比; SLA, 比叶面积。D1, 半固定沙丘阶段; D2, 固定沙丘阶段; D3, 土壤结皮固定沙丘阶段; D4, 草本植物固定沙丘阶段。

Fig. 4. Results of principle component (PC) analysis of Artemisia ordosica leaf traits in different dune fixation stages in Mau Us Sandy Land. A, Main leaf trait load of Artemisia ordosica. B, Response of Artemisia ordosica to different stages of dune fixation. A_max, maximum net photosynthetic rate; C:N, leaf carbon content to nitrogen content ratio; LA, leaf area; LCC, leaf carbon content; LDMC, leaf dry matter content; LNC, leaf nitrogen content; LPC, leaf phosphorus content; LT, leaf thickness; LTD, leaf tissue density; N:P, leaf nitrogen content to phosphorus content ratio; SLA, specific leaf area. D1, semi-fixed dune stage; D2, fixed dune stage; D3, fixed dune covered with biological soil crusts; D4, fixed dune with abundant herbaceous plants.