Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland

Carbon sequestration in grassland soil has been paid considerable attention in recent decades. However, the changes of soil organic carbon (SOC) still need clarification under the effect of environmental factors in semi-arid area. Here, twenty sampling sites were selected to study the effects of pla...

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Autores principales:	Tian,Fu-Ping, Zhang,Zhi-Nan, Chang,Xiao-Feng, Sun,Lei, Wei,Xue-Hong, Wu,Gao-Lin
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2016
Materias:	Soil organic carbon species diversity environmental factors semi-arid grassland
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000400019
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spelling	oai:scielo:S0718-951620160004000192017-03-07Effects of biotic and abiotic factors on soil organic carbon in semi-arid grasslandTian,Fu-PingZhang,Zhi-NanChang,Xiao-FengSun,LeiWei,Xue-HongWu,Gao-Lin Soil organic carbon species diversity environmental factors semi-arid grassland Carbon sequestration in grassland soil has been paid considerable attention in recent decades. However, the changes of soil organic carbon (SOC) still need clarification under the effect of environmental factors in semi-arid area. Here, twenty sampling sites were selected to study the effects of plant community (plant cover, biomass, litter, composition and diversity) and environmental factors (i.e. mean annual precipitation, mean annual temperature) on SOC sequestration in the semi-arid grasslands. The results showed that SOC was significant positively related to mean annual precipitation, soil water content and soil pH. The higher above- and below-ground biomass, species evenness and diversity presented the higher SOC. Specially, the species richness and proportion of gramineous species functional group significantly increased SOC. Below-ground biomass affected SOC mainly in the top 30 cm soil. Our results suggest that higher plant species richness and gramineous species proportion play a positive role in increasing the potential of soil carbon sequestration in semi-arid grassland.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.16 n.4 20162016-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000400019en10.4067/S0718-95162016005000080
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Soil organic carbon species diversity environmental factors semi-arid grassland
spellingShingle	Soil organic carbon species diversity environmental factors semi-arid grassland Tian,Fu-Ping Zhang,Zhi-Nan Chang,Xiao-Feng Sun,Lei Wei,Xue-Hong Wu,Gao-Lin Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
description	Carbon sequestration in grassland soil has been paid considerable attention in recent decades. However, the changes of soil organic carbon (SOC) still need clarification under the effect of environmental factors in semi-arid area. Here, twenty sampling sites were selected to study the effects of plant community (plant cover, biomass, litter, composition and diversity) and environmental factors (i.e. mean annual precipitation, mean annual temperature) on SOC sequestration in the semi-arid grasslands. The results showed that SOC was significant positively related to mean annual precipitation, soil water content and soil pH. The higher above- and below-ground biomass, species evenness and diversity presented the higher SOC. Specially, the species richness and proportion of gramineous species functional group significantly increased SOC. Below-ground biomass affected SOC mainly in the top 30 cm soil. Our results suggest that higher plant species richness and gramineous species proportion play a positive role in increasing the potential of soil carbon sequestration in semi-arid grassland.
author	Tian,Fu-Ping Zhang,Zhi-Nan Chang,Xiao-Feng Sun,Lei Wei,Xue-Hong Wu,Gao-Lin
author_facet	Tian,Fu-Ping Zhang,Zhi-Nan Chang,Xiao-Feng Sun,Lei Wei,Xue-Hong Wu,Gao-Lin
author_sort	Tian,Fu-Ping
title	Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
title_short	Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
title_full	Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
title_fullStr	Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
title_full_unstemmed	Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
title_sort	effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000400019
work_keys_str_mv	AT tianfuping effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland AT zhangzhinan effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland AT changxiaofeng effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland AT sunlei effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland AT weixuehong effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland AT wugaolin effectsofbioticandabioticfactorsonsoilorganiccarboninsemiaridgrassland
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Effects of biotic and abiotic factors on soil organic carbon in semi-arid grassland

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