CAJ | 학술논문

为了明晰蚂蚁对高寒草地生态系统的作用,于甘肃天祝高寒草地上研究了蚂蚁对土壤水分、容重、养分、土壤种子库和草产量的影响.结果表明,蚁丘0～10 cm的土壤含水量显著低于邻近土壤,蚁丘0～10 cm的土壤容重比距离蚁丘1 m同等深度的容重小59%.蚂蚁具有向蚁丘土壤富集营养和种子的作用.蚁丘0～10,10～20 cm深与距离蚁丘1 m处土壤总种子密度和种子多样性最大的是蚁丘0～10 cm,其次为蚁丘10～20 cm,最小的是距离蚁丘1 m处的对照.除蚁丘0～10 cm深处的碱解氮略小于对照外,前者的全氮、全磷、速效钾和有机质显著高于蚁丘10～20 cm和邻近土壤.蚁丘的中央部分为裸地,蚁丘外围的草产量显著低于邻近无蚁丘草地的草产量.
위료명석마의대고한초지생태계통적작용,우감숙천축고한초지상연구료마의대토양수분、용중、양분、토양충자고화초산량적영향.결과표명,의구0～10 cm적토양함수량현저저우린근토양,의구0～10 cm적토양용중비거리의구1 m동등심도적용중소59%.마의구유향의구토양부집영양화충자적작용.의구0～10,10～20 cm심여거리의구1 m처토양총충자밀도화충자다양성최대적시의구0～10 cm,기차위의구10～20 cm,최소적시거리의구1 m처적대조.제의구0～10 cm심처적감해담략소우대조외,전자적전담、전린、속효갑화유궤질현저고우의구10～20 cm화린근토양.의구적중앙부분위라지,의구외위적초산량현저저우린근무의구초지적초산량.
The creation of small-scale vegetation mosaics by building mound is an important aspect of ant activity in grasslands. In order to clear the impacts the alpine grassland by ant mound building, an investigation was made on ants nesting activities to the soil water content, soil bulk density, soil seed bank and soil nutrition in Tianzhu Alpine grassland. Comparing with the adjacent soil, the soil water content of ant nest is significantly lower in depth of soil from 0 to 10 cm than CK, and soil bulk density of ant hill from 0 to 10 cm is lower 59% than CK. Ant has the roll that enrichment soil nutrients and collection seeds to ant hill. The total density of the soil seed of ant hill was the highest in soil from 0 to 10 cm, the second was ant hill soil from 10 to 20 cm, the lowest was at a distance of 1 m from ant nest, as well as seed diversity. The organic matter, total N, total P, available K of the soil in ant nest soil from 0 to 10 cm depth is significantly higher than that around the ant nest, except available N in ant hill soil was lower that CK. The middle of ant hill is bare land, and the grass production near ant nests is significantly lower than non-ant nests.