Giraldo-Perez Paulina, Raw Victoria, Greven Marc, Goddard Matthew R
The School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand.
The New Zealand Institute for Plant and Food Research Limited - Rangahau Ahumāra Kai, PO Box 845, Blenheim, New Zealand.
iScience. 2021 Mar 8;24(4):102280. doi: 10.1016/j.isci.2021.102280. eCollection 2021 Apr 23.
Larger easily visible animals and plants are negatively affected by agrochemicals used for intensive food production, but we do not understand the general spatial and temporal effects of agrochemicals on the multitudes of bacteria, fungi, and small invertebrate animals that underpin ecosystem productivity. We sequenced the 16S, ITS2, and COI DNA barcode regions from 648 New Zealand vineyard soil samples managed under either conventional or low-agrochemical-input conservation approaches across two regions and three seasons in 1 year and discovered at least 170,000 phylotypes (taxa) with >97% genetic identity. Management approach correlated with a significant 2%-10% difference in the abundances of phylotypes that differed over regions and seasons. Although the data show that agrochemicals do not have a large effect on soil biodiversity on average, the important finding is that the magnitude of impact differs between taxa types and locations, and some taxa most affected also influence the quality of agricultural produce.
体型较大、易于观察的动植物会受到用于集约化粮食生产的农用化学品的负面影响，但我们并不了解农用化学品对构成生态系统生产力基础的大量细菌、真菌和小型无脊椎动物的总体时空影响。我们对来自新西兰两个地区、在1年中的三个季节采用常规或低农用化学品投入保护方法管理的648个葡萄园土壤样本的16S、ITS2和COI DNA条形码区域进行了测序，发现了至少170,000个遗传同一性>97%的系统发育型（分类单元）。管理方法与不同地区和季节中丰度存在显著2%-10%差异的系统发育型相关。虽然数据表明农用化学品平均而言对土壤生物多样性影响不大，但重要的发现是，影响程度在分类单元类型和地点之间存在差异，一些受影响最严重的分类单元也会影响农产品质量。
