Water sources effects on soil salinity and biomass production of agriculture and agroforest systems in raised fields

Journal of plant interactions

article

Hengyu Hu¹  Tangyuan Ning¹  Mengkun Zhang¹  Min Fu²  Jihao Qin¹  Jiansheng Chen¹  Yupeng Feng³  Geng Li¹  Mingzhen Zhai²  Yin Zhang¹ 

[1] a State Key Laboratory of Crop Biology, Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Agronomy, Shandong Agricultural University;b Shandong Province Key Laboratory of Soil, College of Resources and Environment, Linyi University;c National Agricultural Technology Extension and Service Center

关键词: Water salinity;    soil salinity formation;    isotope analysis;    water use efficiency;   

DOI  :  10.1080/17429145.2020.1818857

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

This study investigates the sources of water under four modes, namely, normal fields, Raised Fields, single agriculture in Raised Fields, and agroforest system in Raised Fields, by using a combination of δ 18 O, δ 2 H and δ 13 C and their effects on crop yield and water use efficiency. The results show that the soil electrical conductivity of Raised Fields during summer maize seasons was lower than that during winter wheat seasons, and that in the marginal regions was higher than in the central regions, because of the Water Sources. Under agroforest conditions in Raised Fields, Soil Salinity can be reduced because approximately 10% of the water originates from tree trunks. The biomass yield and intrinsic water use efficiency of winter crops under agroforest was 15.1% and 5.5% higher than that under single agriculture, respectively. Thus, soil salinization can be reduced and productivity can be increased by controlling the Water Sources in ecosystems.

【 授权许可】

CC BY|CC BY-NC