Modifying effect of ant colonization on soil heterogeneity along a chronosequence of tropical forest restoration on slash-burn lands
Modifying effect of ant colonization on soil heterogeneity along a chronosequence of tropical forest restoration on slash-burn lands
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蚂蚁定居对刀耕火地热带森林恢复时间序列土壤异质性的改变作用
DOI：
10.1016/j.still.2019.104329
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发表时间：
2019-11
影响因子：
6.5
通讯作者：
Ping Wang
中科院分区：
文献类型：
--
作者：
Mei Lu;Shaojun Wang （王邵军）;Zhe Zhang;Minkun Chen;Shaohui Li;Run Cao;Qianbin Cao;Qianqian Zuo;Ping Wang
蚂蚁是调节土壤异质性的生态系统工程师。在热带森林恢复的时间序列中，对土壤的这些变化的程度和方向知之甚少。在西双版纳热带地区，研究了不同森林恢复阶段（12年、28年、42年和53年）地下筑巢蚁对森林土壤特征的影响。我们证实了蚁群在四个修复阶段对土壤物理特性、微生物碳和矿质养分的富集有积极影响的假设。蚁巢土壤有机质（103%）、易氧化碳（78%）、全氮（114%）、速效氮（126%）、NH4+(133%)和NO3 -(140%)富集程度在12年龄阶段均高于周围土壤。巢土微生物碳在53龄阶段富集最高，达到110%。土壤微生物碳的富集随森林恢复年龄的增加而增加，但土壤矿质养分的富集不随森林恢复而增加。恢复初期巢土中较高的矿质养分富集可以提高土壤肥力，促进森林的自然恢复。在较老的恢复阶段，较高的蚁巢丰度和面积可能为植物发育创造更高的裸空间。因此，我们的研究结果表明，蚂蚁定居可能通过在早期创造和维持较高的土壤养分异质性来调节森林恢复，并极大地促进微生物的生长，为热带土地在较早阶段的植物发育开辟空间。
Ants act as ecosystem engineers in regulating soil heterogeneities. Little is known about the degree and direction of these modifications on soils across a restoration chronosequence of tropical forests. Our objectives aimed to explore the effect of belowground-nesting ants on soil characteristics across four forest restoration stages (i.e., 12-, 28-, 42- and 53-yr olds) on slash-burn lands in the tropical Xishuangbanna, southwestern China. We confirmed the hypotheses about a positive effect of ant colonization on soil physical characteristics, and on the enrichment of microbial carbon and mineral nutrients in nest soils across the four restoration stages. Ant nests had the highest enrichment of soil organic matter (103%), readily oxidizable carbon (78%), total nitrogen (114%), available nitrogen (126%), NH4+(133%) and NO3– (140%) at the 12-yr old stage compared with the surrounding soils. In contrast, the highest enrichment of microbial carbon (110%) in nest soils was showed at the 53-yr old stage. The enrichment of microbial carbon in nest soils increased with restoration age, but that of soil mineral nutrients would not follow the forest restorations. A higher enrichment of mineral nutrients in nest soils at the early restoration stage can improve soil fertility, which might promote the spontaneous forest restorations. A higher abundance and area of ant nests at the older restoration stage may create a higher bare space for plant development. Therefore, our results suggest that ant colonization can regulate forest restorations, possibly through creating and maintaining higher soil nutrient heterogeneity at earlier stage, and greatly stirring microbial growth and opening up space for plant development at older stage on slash-burn tropical lands.
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影响因子：
1.5
作者：
R. Shukla;N. Rastogi;Hema Singh
通讯作者：
R. Shukla;N. Rastogi;Hema Singh
影响因子：
2.9
作者：
Yuanyuan Li;Han Y. H. Chen;Qi-Qi Song-Qi;Jiahui Liao;Ziqian Xu;Shide Huang;H. Ruan
通讯作者：
Yuanyuan Li;Han Y. H. Chen;Qi-Qi Song-Qi;Jiahui Liao;Ziqian Xu;Shide Huang;H. Ruan
影响因子：
1.9
作者：
Cammeraat, E. L. H.;Risch, A. C.
通讯作者：
Risch, A. C.
影响因子：
3.7
作者：
Spracklen BD;Kalamandeen M;Galbraith D;Gloor E;Spracklen DV
通讯作者：
Spracklen DV
影响因子：
4.8
作者：
Jouni Kilpeläinen;L. Finér;P. Niemelä;T. Domisch;S. Neuvonen;M. Ohashi;A. Risch;L. Sundström
通讯作者：
Jouni Kilpeläinen;L. Finér;P. Niemelä;T. Domisch;S. Neuvonen;M. Ohashi;A. Risch;L. Sundström