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Modifying effect of ant colonization on soil heterogeneity along a chronosequence of tropical forest restoration on slash-burn lands
×÷Õß:Lu, M (Lu, Mei)[ 1 ] ; Wang, SJ (Wang, Shaojun)[ 1,2 ] ; Zhang, Z (Zhang, Zhe)[ 1 ] ; Chen, MK (Chen, Minkun)[ 1 ] ; Li, SH (Li, Shaohui)[ 1 ] ; Cao, R (Cao, Run)[ 1 ] ; Cao, QB (Cao, Qianbin)[ 1 ] ; Zuo, QQ (Zuo, Qianqian)[ 1 ] ; Wang, P (Wang, Ping)[ 1 ]
SOIL & TILLAGE RESEARCH
¾í: 194
ÎÄÏ׺Å: 104329
DOI: 10.1016/j.still.2019.104329
³ö°æÄê: NOV 2019
ÎÄÏ×ÀàÐÍ:Article
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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.
¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:Ant modification; Nutrient enrichment; Slash-Burn tropical forest lands
KeyWords Plus:FORMICA-RUFA GROUP; HARVESTER ANTS; LITTER DECOMPOSITION; ATLANTIC FOREST; NITROGEN POOLS; MOUNDS; ECOSYSTEM; VEGETATION; CARBON; NESTS
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Wang, SJ (ͨѶ×÷Õß)
ÏÔʾ¸ü¶à Southwest Forestry Univ, Coll Ecol & Soil & Water Conservat, 300 Bailongsi, Kunming 650224, Yunnan, Peoples R China.
µØÖ·:
ÏÔʾ¸ü¶à [ 1 ] Southwest Forestry Univ, Coll Ecol & Soil & Water Conservat, 300 Bailongsi, Kunming 650224, Yunnan, Peoples R China
ÏÔʾ¸ü¶à [ 2 ] Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, 159 Longpan Rd, Nanjing 210037, Jiangsu, Peoples R China
µç×ÓÓʼþµØÖ·:wanghn2008@126.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹ÏÔʾÏêÇé ÊÚȨºÅ
National Natural Science Foundation of China
31660191
41461052
China 948 Program of National Forestry Bureau
2015-4-39
Graduate Tutor Team Building Project of Yunnan province
²é¿´»ù½ð×ÊÖúÐÅÏ¢
³ö°æÉÌ
ELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Agriculture
Web of Science Àà±ð:Soil Science
ÎÄÏ×ÐÅÏ¢
ÓïÑÔ:English
Èë²ØºÅ: WOS:000486360400050
ISSN: 0167-1987
eISSN: 1879-3444
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IDS ºÅ: IY4KR
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 53
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