[1]乔磊磊,李袁泽,翟珈莹,等.黄土丘陵区植被恢复模式对土壤碳组分的影响[J].水土保持研究,2019,26(05):14-20.
　QIAO Leilei,LI Yuanze,ZHAI Jiaying,et al.Effects of Vegetation Restoration Pattern on Soil Carbon Fractions in Loess Hilly Region[J].Research of Soil and Water Conservation,2019,26(05):14-20.
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黄土丘陵区植被恢复模式对土壤碳组分的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年05期 页码: 14-20 栏目: 出版日期: 2019-09-06
Title:
Effects of Vegetation Restoration Pattern on Soil Carbon Fractions in Loess Hilly Region
作者:
乔磊磊1, 李袁泽2, 翟珈莹3,4, 宋亚辉3,4, 刘国彬1,3
1. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100;
2. 西北农林科技大学 林学院, 陕西 杨凌 712100;
3. 中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
4. 中国科学院大学, 北京 100049
Author(s):
QIAO Leilei1, LI Yuanze2, ZHAI Jiaying3,4, SONG Yahui3,4, LIU Guobin1,3
1. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and ministry of Water Resources, Yangling, Shaanxi 712100, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
黄土丘陵区; 植被恢复; 土壤碳库组分
Keywords:
loess hilly region; vegetation restoration; soil carbon pool fractions
分类号:
S151.9
摘要:
为认识黄土丘陵区不同恢复模式对土壤碳组分的影响规律，寻找可以反映植被恢复过程中的土壤碳库质量因子，以纸坊沟流域蟠龙山上6种恢复30年的植被恢复样地为研究对象，选取坡耕地和区域顶级群落侧柏林（Platycladus orientailis L.）为对照，分析了植被恢复过程中土壤有机碳（SOC）、重铬酸钾易氧化态碳（ROC）、高锰酸钾易氧化态碳（LOC）、非活性有机碳（NLOC）、微生物量碳（MBC）、水溶性有机碳（DOC）、盐浸提有机碳（SEOC）、热水浸提有机碳（HWEC）、热水浸提碳水化合物（HWC）的变化特征。结果表明：坡耕地由于不合理的利用方式，土壤碳组分含量较低，不同植被恢复显著增加了土壤活性碳组分，TOC，ROC，LOC，NLOC，MBC，SEOC，DOC，HWEC和HWC的含量分别较坡耕地增加了109%～228%，153%～338%，94%～212%，102%～271%，109%～142%，117%～288%，66%～149%，166%～279%和128%～217%，但是和天然侧柏林相比分别低了55.4%～72.4%，57.2%～75.3%，50.1%～69.0%，59.9%～78.2%，60.2%～65.9%，6.7%～48.6%，2.2%～35.1%，40.1%～58.3%和55.6%～67.8%，混交林具有较高的碳组分含量，表明混交林恢复模式效果相对好于草地和纯林。不同恢复模式各碳组分和同一恢复模式中不同碳组分敏感性差异较大，并非所有碳组分的敏感性均高于TOC，在采用土壤碳组分作为土壤质量指标时应根据不同恢复模式选择相应指标。
Abstract:
In order to understand the effect of different restoration patterns on soil carbon fractions in loess hilly region, and find the soil carbon pool’s quality factors that can reflect the vegetation restoration process, six 30-year vegetation restoration sample plots on the Panlongshan Mountain in the Zhifanggou watershed were chosen to analyze the variation characteristics of soil organic carbon (SOC), potassium dichromate readily oxidized carbon (ROC), potassium permanganate labile organic carbon (LOC), negative organic carbon (NLOC), microbial biomass carbon (MBC), dissolved organic carbon (DOC), salt extraction of organic carbon (SEOC), hot-water extractable carbon (HWEC), hot water extractable carbohydrate (HWC) during the vegetation restoration process, and the slope cropland and regional climax community (Platycladus orientailis L.) were used as controls. The results showed that low soil carbon fraction contents were observed in the slope cropland due to unreasonable utilization, and different vegetation restoration significantly increased the soil active carbon fractions, SOC, ROC, LOC, NLOC, MBC, SEOC, DOC, HWEC and HWC increased by 109%~228%, 153%~338%, 94%~212%, 102%~271%, 109%~142%, 117%~288%, 66%~149%, 166%~279% and 128%~217%, respectively, compared to slope cropland; however, compared with natural Platycladus orientailis L., the contents of those carbon fractions under different vegetation restoration patterns decreased by 55.4%~72.4%, 57.2%~75.3%, 50.1%~69.0%, 59.9%~78.2%, 60.2%~65.9%, 6.7%~48.6%, 2.2%~35.1%, 40.1%~58.3% and 55.6%~67.8%, respectively, carbon content was higher in the mixed forest, indicating that the mixed forest has a better restoration effect than pure forest and grassland. The sensitivity of carbon fractions in different restoration patterns and different carbon fractions in the same restoration pattern showed large variation, and not all carbon fractions are more sensitive than SOC. The corresponding indicators should be selected according to the different vegetation restoration patterns when using soil carbon fractions as soil quality indicators.

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备注/Memo

收稿日期:2018-11-04;改回日期:2018-11-27。
基金项目:“十三五”国家重点研发计划（2016YFC0501707）；科技基础性工作专项（2014FY210100）
作者简介:乔磊磊(1995-),男,河南省洛阳市洛宁县人,硕士研究生,主要从事微生物生态与恢复生态学。E-mail:qiaoleilei0118@163.com
通讯作者:刘国彬(1958-),男,陕西省榆林市人,研究员,主要从事水土保持与流域管理研究。E-mail:gbliu@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01