The Project Seminar of "Technical Specifications for Farmland Biodiversity Investigation" Focusing on the Biodiversity Conservation in Our Neighbourhood (BCON) in Farmland

Farmland refers to land used for agricultural production and cultivated fields, which can generally be divided into dry land and paddy fields. Farmland biodiversity is an important aspect of the health of farmland ecosystems and the basis of human food safety. Farmland biodiversity survey is the most basic work in farmland biodiversity protection. At present, the standardization of farmland biodiversity protection in my country is still in its infancy, and no relevant standards have been officially issued and implemented in my country so far.

On the morning of July 1, 2024, the Comprehensive Technology Department of the China Biodiversity Conservation and Green Development Foundation (CBCGDF) held a seminar on the project establishment of the group standard for farmland biodiversity survey. Dr. ZHOU Jinfeng, CBCGDF Secretary-General put forward important suggestions on the key groups, sample point layout principles, key survey indicators, survey methods and technical innovation of farmland biodiversity survey, and affirmed the importance of compiling the "Technical Specifications for Farmland Biodiversity Investigation".

Zhou Jinfeng pointed out that the biodiversity survey of farmland ecosystems is significantly different from that of natural ecosystems in terms of survey elements, spatial selection of sample point layout, and key focus groups. Before formulating a biodiversity survey plan, it is necessary to first clarify the ecological zone, main biological groups, key species and important ecosystems of the farmland area to be surveyed. Weeds, insects, soil animals, etc. that are closely related to crop growth are the focus of farmland biodiversity investigation.

Secondly, farmland biodiversity surveys need to consider the biodiversity of the control area. To study the impact of farmland planting management measures on biodiversity, it is necessary to consider the selection of control/blank areas, conduct biodiversity surveys in control areas, and conduct comparative analysis to quantify the impact of farmland crop planting on biodiversity.

Thirdly, farmland biodiversity issues should be considered from the landscape and ecosystem levels. Semi-natural habitats such as ridges, ditches, hedges, and shelter-belts in farmland landscapes are important manifestations of farmland landscape biodiversity.

Finally, Dr. Zhou Jinfeng emphasized that the farmland biodiversity survey plan should clarify the survey methods and data analysis ideas to ensure the scientificity and operability of the survey and analysis. At the same time, farmland is different from natural habitats, and species richness is not necessarily the best indicator for judging farmland biodiversity. It is recommended to combine the investigation of farmland management measures with the investigation of the population size or density of important species or key species such as insect pests and their natural enemies, farmland health indicator species, etc., to provide scientific support for the protection of neighborhood biodiversity in farmland.

Reporter:Daisy

Checked by Sara

Editor: Daisy

Contact: v10@cbcgdf.org; +8617319454776

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