| 黄土丘陵区撂荒恢复过程中植物群落组成与土壤养分及酶活性变化的关系 |
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| 引用本文： | 乔文静,戴银月,张伟,付淑月,杨改河,韩新辉,陈正兴,高德新,冯永忠.黄土丘陵区撂荒恢复过程中植物群落组成与土壤养分及酶活性变化的关系[J].环境科学,2018,39(12):5687-5698. |
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| 作者姓名： | 乔文静 戴银月 张伟 付淑月 杨改河 韩新辉 陈正兴 高德新 冯永忠 |
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| 作者单位： | 西北农林科技大学农学院;陕西省循环农业工程技术研究中心;云南师范大学旅游与地理科...;山东省泰安市岱岳区农业局...;德宏师范高等专科学校;;河南农业大学信息与管理科...;湖南省林业科学院;国家油...;新疆石河子;山西省农业科学院果树研究...;滁州学院地理信息与旅游学...;贵州大学动物科学学院;贵...;湖南农业大学资源环境学院... |
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| 摘 要： | 为揭示黄土丘陵区植被恢复过程中土壤性质变化趋势,以黄土丘陵区10~45a的撂荒地为研究对象,分析撂荒后植被恢复过程中植物群落演变规律、土壤养分含量、4种酶活性变化及其相关关系.结果表明,随着撂荒年限的增加,恢复过程中主要群落的演变为猪毛蒿(Artemisia scoparia)→达乌里胡枝子(Lespedeza dahurica)+铁杆蒿(Artemisia sacrorum)→茭蒿(Artemisia giraldii)+铁杆蒿→白羊草(Bothriochloa flaccidum)+茭蒿,群落多样性指数整体表现为先增后减的趋势,菊科(Compositae)、禾本科(Poaceae)及豆科(Leguminosae)这3科占比从66. 67%降至50%,后上升到75%.土壤有机碳(SOC),全氮(TN)、全磷(TP)、速效氮(AN)、速效磷(AP)与碱性磷酸酶(ALP)、过氧化氢酶(CAT)、脲酶(UE)与蔗糖酶(SC)这4种酶活性呈增加趋势,但增加程度不同,化学计量比总体呈波动上升趋势.菊科、禾本科与豆科相比总科数、总属数、总种数及植物多样性,对养分和酶活性有更显著的影响,贡献率分别为72. 8%、69. 1%、66. 0%,且三大科对土壤酶的影响大于土壤养分,其中禾本科与豆科对养分及酶活性表现为正影响,而菊科表现为负影响.撂荒恢复过程中草地群落优势科占比的升高显著影响土壤酶的升高,并导致土壤养分变化.
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| 关 键 词： | 黄土丘陵区 撂荒地 植物群落 化学计量 酶活性 |
| 收稿时间： | 2018/2/4 0:00:00 |
| 修稿时间： | 2018/5/16 0:00:00 |
Relationship Between the Vegetation Community and Soil Nutrient and Enzyme Activity During the Restoration of Abandoned Land in the Loess Hilly Region |
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| QIAO Wen-jing,DAI Yin-yue,ZHANG Wei,FU Shu-yue,YANG Gai-he,HAN Xin-hui,CHEN Zheng-xing,GAO De-xin and FENG Yong-zhong.Relationship Between the Vegetation Community and Soil Nutrient and Enzyme Activity During the Restoration of Abandoned Land in the Loess Hilly Region[J].Chinese Journal of Environmental Science,2018,39(12):5687-5698. |
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| Authors: | QIAO Wen-jing DAI Yin-yue ZHANG Wei FU Shu-yue YANG Gai-he HAN Xin-hui CHEN Zheng-xing GAO De-xin and FENG Yong-zhong |
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| Institution: | College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China,College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China and College of Agronomy, Northwest A & F University, Yangling 712100, China;Shaanxi Engineering Research Center of Circular Agriculture, Yangling 712100, China |
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| Abstract: | |
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| Keywords: | Loess Hilly Region abandoned land vegetation community stoichiometry enzyme activity |
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