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Can intercropping with the cash crop help improve the soil physico-chemical properties of rubber plantations?
Chen, Chunfeng1; Liu, Wenjie; Wu, Junen1; Jiang, Xiaojin; Zhu, Xiai1
2019
Source PublicationGEODERMA
ISSN0016-7061
Volume335Issue:xPages:149-160
Abstract

Although rubber-based (Hevea brasiliensis) agroforestry systems are regarded as the best approach to improving the sustainability of rubber agriculture and environmental conservation, soil physico-chemical properties and their related interactions have rarely been examined in such systems. The objective of this study was to examine the management and landscape effects on soil structure, soil moisture and soil nutrients in the Xishuangbanna region. The treatments were tropical rain forest (TRF), rubber monoculture (Rm), and two rubber-based agroforestry systems: H. brasiliensis-T. cacao (HTAs) and H. brasiliensis-F. macrophylla (HFAs). The results showed that after approximately three decades of the conversion from tropical rain forest to rubber monoculture, soils in the rubber plantations suffered serious degradation (poor soil physical properties, poor soil structure, limited soil moisture, unstable aggregates, depleted nutrients and serious soil erosion). However, the rubber-based agroforestry systems (both HTAs and HFAs) evidently improved the soil physical properties and enriched the soil nutrients in the rubber plantations. Compared to the corresponding values in rubber monoculture, the total soil porosity, initial soil moisture, soil mean weight diameter (MWD) and soil hydraulic conductivity (K,) in rubber-based agroforestry systems increased, on average, by 13.3%, 54.7%, 31.5%, and 246.4%, respectively. In addition, the nutrients of C, N, P, Ca and Mg increased, on average, by 38.8%, 38.5%, 48.2%, 47.9% and 31.4%, respectively, after the transformation from rubber monoculture to agroforestry systems. Our results clearly indicated that the soil physico-chemical properties of rubber plantations were improved by interplanting, and the patterns of the intercropping system could play key roles in promoting the sustainable development of agriculture and the environment.

KeywordAggregate Stability Organic-carbon Agroforestry Systems Rain-forest Xishuangbanna Sustainability Sequestration Infiltration Agriculture Indicators
Subject AreaAgriculture
DOI10.1016/j.geoderma.2018.08.023
Indexed BySCI
Language英语
WOS IDWOS:000447095700015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11211
Collection2012年后新成立研究组
恢复生态学组
Affiliation1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Chunfeng,Liu, Wenjie,Wu, Junen,et al. Can intercropping with the cash crop help improve the soil physico-chemical properties of rubber plantations?[J]. GEODERMA,2019,335(x):149-160.
APA Chen, Chunfeng,Liu, Wenjie,Wu, Junen,Jiang, Xiaojin,&Zhu, Xiai.(2019).Can intercropping with the cash crop help improve the soil physico-chemical properties of rubber plantations?.GEODERMA,335(x),149-160.
MLA Chen, Chunfeng,et al."Can intercropping with the cash crop help improve the soil physico-chemical properties of rubber plantations?".GEODERMA 335.x(2019):149-160.
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