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In order to study the impact of rice-duck farming ecosystem on zoobenthos biodiversity in paddy waters, surface soil samples taken from rice-duck farming ecosystem and conventional paddy fields were analyzed for zoobenthos biodiversity.

在水稻不同生育时期对稻鸭共作稻田和常规稻田的土壤取样,研究不同稻田生态系统水体底栖动物的生物多样性。

The total number of zoobenthos in rice-duck farming ecosystem declines remarkably during the early stage of rice growth, but almost equals that of conventional paddy at late growth stage.

水稻生育前期,稻鸭共作使底栖动物的个体总数减少较大,后期与常规稻田差异较小。

Among the water insect distribution, the most found species was zooplankton, and the dragonfly and damselfly were the next. There were 16 families and 22 geniuses of insects found in Ba-Lein and Lau-Mai rivers.

根据现场勘查,八连与老梅溪中之水栖昆虫中以蜉蝣为最多,其次为蜻蜓、豆娘、水黾、石蝇、等共16科22属,生物多样性指数介於1.4~3.5之间,并且有由下游至上游渐增的趋势。

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She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。