Influence of earthworms on soil properties and grass production in reclaimed cutover peat
Influence of earthworms on soil properties and grass production in reclaimed cutover peat
复制标题
蚯蚓对复垦泥炭土壤性质及产草的影响
DOI：
10.1007/s003740050274
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发表时间：
1997
影响因子：
6.5
通讯作者：
E. Farrell
中科院分区：
文献类型：
--
作者：
K. Boyle;J. Curry;E. Farrell
摘要采用温室桶式试验，研究了蚯蚓对复垦泥炭地牧草生长和土壤结构的影响。在20个月的时间内，从13次切割中获得的累积草产量比没有蚯蚓的类似施肥桶高出89%，有机施肥桶高出19%。当7个月后从一些桶中扣留肥料时，在研究的剩余时间内，在有机（+222%）和无机（+114%）方案下，蚯蚓存在下的草生长显著更大。认为草地生长反应主要是由于有机质分解和矿化的增强，蚯蚓活动对土壤沉降率、导水率、水分特性、容重、孔隙度、纤维度以及土壤形态和微形态有显着影响。结果表明，活性污泥能显著加速复垦泥炭土的熟化和剖面发育过程。
Abstract The effects of earthworms on grass growth and soil structure in reclaimed peat were studied in a glasshouse bucket experiment. Cumulative grass yields from 13 cuts taken over a period of 20 months were 89% higher in organically fertilized and 19% higher in inorganically fertilized buckets with earthworms than in similarly fertilized buckets without earthworms. When fertilizers were withheld from some buckets after 7 months grass growth during the remainder of the study was significantly greater in the presence of earthworms under both organic (+222%) and inorganic (+114%) regimes. It is considered that grass growth responses were mainly due to enhanced organic matter decomposition and mineralization.Soil subsidence rates, hydraulic conductivity, moisture characteristics, bulk density, porosity, fibrosity, and soil morphology and micromorphology were significantly influenced by earthworm activity. The results show that earthworm activity can significantly accelerate the process of maturation and profile development in reclaimed peat soils.