The Influence of Grass Cultivation on the Community Structure and Species Diversity of Gaocong Tea Gardens in Wuyi Mountain

LI Chunyan; LU Zheng; LUO Xuhui; ZHENG Kaibin; DONG Zhanjie; ZHANG Tao; LIU Kai; ZHONG Zhenmei

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Journal of Tea Science ›› 2026, Vol. 46 ›› Issue (3) : 461-474.

The Influence of Grass Cultivation on the Community Structure and Species Diversity of Gaocong Tea Gardens in Wuyi Mountain

LI Chunyan^1,3, LU Zheng^1,3, LUO Xuhui^1,3, ZHENG Kaibin^1,3, DONG Zhanjie², ZHANG Tao², LIU Kai², ZHONG Zhenmei^1,3,*

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Abstract

This study compared the adaptability of different green manure varieties in the Gaocong tea gardens of Wuyi Mountain, as well as their effects on tea garden community structure and species diversity, to provide green and efficient technical support for the sustainable management of Gaocong tea gardens in Wuyi Mountain. Seven leguminous green manures were selected as experimental groups for grass cultivation in Gaocong tea gardens, with natural grass as the control (CK). The effects of two consecutive years of grass cultivation on species richness, importance value, ecological niche, community structure, and species diversity in Gaocong tea gardens were investigated, and a hierarchical analysis method was employed for comprehensive evaluation. The results show that a total of 33 species from 32 genera across 22 families of weeds were identified in the experimental area over two years (2023 and 2024), primarily from the Poaceae, Asteraceae, Rosaceae, Polygonaceae, Phyllanthaceae, and Commelinaceae. Continuous grass cultivation reduced weed species, decreased the importance value and ecological niche width of weeds, and altered weed community structure. Different green manure varieties (lines) exhibited varying impacts on weed communities across different years of cultivation, with significant differences in species diversity among green manure varieties. However, overall diversity was lower than the control. Both years of cultivation and green manure variety significantly influenced community diversity and dominance. The results of the hierarchical analysis show that the comprehensive weed control ability was Vigna unguiculata (MN) > Crotalaria pallida (ZS) > Phaseolus aureus (YN) > Cassia tora No.3 (YM003) > Lespedeza cuneata (JT) > Kummerowia striata (JY) > Cassia tora No.7 (YM007) in the first year. And it was YN > MN > ZS > YM003 > JY > JT > YM007 in the second year. In conclusion, continuous grass cultivation can effectively reduce the number of weed species and individual plants in Gaocong tea gardens, while also inhibiting weed growth. Among grass cultivation methods, MN, YN and ZS are the most suitable for managing weeds in Gaocong tea gardens in Wuyi Mountain.

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grass cultivation / Gaocong tea gardens / weed diversity / community structure

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LI Chunyan, LU Zheng, LUO Xuhui, ZHENG Kaibin, DONG Zhanjie, ZHANG Tao, LIU Kai, ZHONG Zhenmei. The Influence of Grass Cultivation on the Community Structure and Species Diversity of Gaocong Tea Gardens in Wuyi Mountain[J]. Journal of Tea Science. 2026, 46(3): 461-474

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