CAJ | 학술논문

[目的]研究不同土地利用方式下的生物量季节动态.[方法]于2008年生长季(5～10月)期间,分别测量了针茅群落、羊草群落和农田3个不同地表覆盖状况下的植物地上生物量和地下生物量.[结果]地上生物量均在8月份达到最高值,羊草、针茅和农田的地上生物量分别为287.91、117.05、193.59 g/m2;3个样地植物根系总生物量在7月份最高,针茅、羊草和农田样地分别为1 683.9、1 601.9、513.9 g/m2;植物上层根系0～15 cm/植物下层根系15～30 cm的生物量比率最大的是羊草,针茅次之,农田最小.[结论]该研究为生态脆弱地区的生态环境保护提供了理论依据.
[목적]연구불동토지이용방식하적생물량계절동태.[방법]우2008년생장계(5～10월)기간,분별측량료침모군락、양초군락화농전3개불동지표복개상황하적식물지상생물량화지하생물량.[결과]지상생물량균재8월빈체도최고치,양초、침모화농전적지상생물량분별위287.91、117.05、193.59 g/m2;3개양지식물근계총생물량재7월빈최고,침모、양초화농전양지분별위1 683.9、1 601.9、513.9 g/m2;식물상층근계0～15 cm/식물하층근계15～30 cm적생물량비솔최대적시양초,침모차지,농전최소.[결론]해연구위생태취약지구적생태배경보호제공료이론의거.
[Objective] The aim was to study seasonal dynamics of biomass under different land use patterns. [Method] Aboveground biomass and underground biomass of plants under 3 different surface cover conditions of Stipa krylovii, Leymus chinensis and farmland were determined in growing season (from May to October) of 2008. [Result] The aboveground biomass of Stipa krylovii, Leymus chinensis and farmland in August all reached the highest value, which of Stipa krylovii, Leymus chinensis and farmland was 287.91, 117.05 and 193.59 g/m2, respectively. The total biomass of plant roots of the 3 plots in July all reached the highest value, which of Stipa krylovii, Leymus chinensis and farmland was 1 683.9, 1 601.9 and 513.9 g/m2, respectively. Leymus chinensis had the biggest biomass ratio of upper plant roots (0-15 cm) to lower plant roots (15-30 cm), Stipa krylovii took second place, and farmland had the smallest one. [Conclusion] The research provides theoretical basis for the ecological environment protection of ecological fragile area.