INTERACTIONS OF EARTHWORMS WITH SOIL PHYSICAL CONDITIONS INFLUENCING PLANT GROWTH
INTERACTIONS OF EARTHWORMS WITH SOIL PHYSICAL CONDITIONS INFLUENCING PLANT GROWTH
复制标题
蚯蚓与影响植物生长的土壤物理条件的相互作用
DOI：
10.1097/00010694-199210000-00009
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
D. R. Linden
中科院分区：
文献类型：
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作者：
S. Logsdon;D. R. Linden
蚯蚓被认为创造了通道，使更深的根穿透硬土层或非结构化土壤;然而，随着替代低阻力路径的数量增加，蚯蚓通道的好处减少。改善根系生长并不总是导致作物生长增加。有些杂草种含有表面残留物和表面施用的石灰和肥料。蚯蚓渠道可以增加渗透，减少径流，增加土壤水分的可用性，或可能的话，深层渗透，以保持作物生长的良好水分状况。盆栽研究通常表明植物生长增加，以响应不切实际的高接种率;然而，只有少数田间研究表明任何植物生长增加，主要是牧场，果园和小谷物。植物对蚯蚓反应的机制和动力学需要更彻底地探索，特别是在实际接种率和统计比较的实地研究中。
Earthworms have been credited with creating channels that allow deeper root penetration through hardpans or unstructured soils; however, the benefit of earthworm channels decreases as the volume of alternative low resistance pathways for root growth increases. Improved root growth does not always result in increased crop growth. Some earthworm species incorporate surface residue and surface-applied lime and fertilizers. Earthworm channels can increase infiltration and reduce runoff, increasing soil water availability or, possibly, deep percolation to maintain favorable water status for crop growth. Pot studies often indicate increased plant growth in response to unrealistically high earthworm inoculation rates; however, only a few field studies indicate any plant growth increases, mainly for pastures, orchards, and small grains. The mechanisms and dynamics of plant response to earthworms needs to be more thoroughly explored, especially in field studies at realistic inoculation rates and with statistical comparisons.