Recognizing the role of plant species composition in the modification of soil nutrients and water in rubber agroforestry systems

doi:10.1016/j.scitotenv.2020.138042

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	Recognizing the role of plant species composition in the modification of soil nutrients and water in rubber agroforestry systems
	Wu, Junen 3; Zeng, Huanhuan 2,3; Zhao, Fan 3; Chen, Chunfeng 3; Liu, Wenjie 3; Yang, Bin 3; Zhang, Wanjun 2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020
卷号	723 页码:-
关键词	Mean residence time Plant competition Plant species composition Plant-soil interaction Soil macronutrient Stable hydrogen and oxygen isotopes
ISSN号	1879-1026
DOI	10.1016/j.scitotenv.2020.138042
英文摘要	Reliable guidance for crop selection and related management to achieve sustainable soil resource use in rubber agroforestry systems is limited. One important reason for this limited guidance is that our understanding of the effects of different plant functional groups on soil resources is still insufficient. Here, to examine the effects of the species composition of trees, shrubs and herbs on soil nutrients and soil water with increases in the complexity of the plant community structure, we measured the soil nutrient concentrations (i.e., C, N, P, K, Ca and Mg), soil water content and soil water residence time (with stable hydrogen and oxygen isotope tracers) at six soil depths in a monoculture rubber plantation, four multi-species rubber agroforestry systems, and a tropical rainforest. As the plant species composition increased, the soil C and N increased. The soil water content also increased with increases in soil C and N. However, the effects of plant species composition on the soilwater content gradually changed from positive to negative, especially under the effects of herb species, which could accelerate soil water drainage and hence shorten the soil water residence time. Therefore, the faster water infiltration and potentially higher flow of soil water in complex plant communities increased the risk and magnitude of mineral nutrient leaching. In addition, as the plant composition increased, plant competition decreased the concentration of soil nutrients, especially soil P, K and Ca. In general, plant interspecific interactions definitively decreased soil mineral nutrients as the plant composition increased, and the effects of tree, shrub and herb species on soil nutrients and soil water differed and sometimes appeared contradictory. However, the effects of plant species composition on soil gradually weakened with increases in soil depth. (C) 2020 Elsevier B.V. All rights reserved.
学科主题	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000535899100009
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11696]
专题	西双版纳热带植物园_2012年后新成立研究组
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Menglun 666303, Yunnan, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Wu, Junen,Zeng, Huanhuan,Zhao, Fan,et al. Recognizing the role of plant species composition in the modification of soil nutrients and water in rubber agroforestry systems[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,723:-.
APA	Wu, Junen.,Zeng, Huanhuan.,Zhao, Fan.,Chen, Chunfeng.,Liu, Wenjie.,...&Zhang, Wanjun.(2020).Recognizing the role of plant species composition in the modification of soil nutrients and water in rubber agroforestry systems.SCIENCE OF THE TOTAL ENVIRONMENT,723,-.
MLA	Wu, Junen,et al."Recognizing the role of plant species composition in the modification of soil nutrients and water in rubber agroforestry systems".SCIENCE OF THE TOTAL ENVIRONMENT 723(2020):-.