[1]张娇阳,梁楚涛,董昌平,等.黄土丘陵区不同土地利用下土壤碳组分及碳库管理指数特征[J].水土保持研究,2016,23(04):66-69,76.
　ZHANG Jiaoyang,LIANG Chutao,DONG Changping,et al.Characteristics of Soil Carbon Components and Carbon Pool Management Indices in Different Land Uses in Loess Hilly Region[J].Research of Soil and Water Conservation,2016,23(04):66-69,76.
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黄土丘陵区不同土地利用下土壤碳组分及碳库管理指数特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年04期 页码: 66-69,76 栏目: 出版日期: 2016-08-28
Title:
Characteristics of Soil Carbon Components and Carbon Pool Management Indices in Different Land Uses in Loess Hilly Region
作者:
张娇阳1, 梁楚涛2, 董昌平3, 辛奇1, 薛萐1,2
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 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;
3. 重庆市渝北区华蓥山林场, 重庆 渝北 401120
Author(s):
ZHANG Jiaoyang1, LIANG Chutao2, DONG Changping3, XIN Qi1, XUE Sha1,2
1. College of Resources and Environment Northwest A & F University, Yangling, Shaanxi, 712100, China;
2. 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;
3. Huayingshan Forest Farm in Yubei District of Chongqing, Chongqing 401120, China
关键词:
黄土丘陵区; 土壤碳组分; 土地利用方式
Keywords:
loess hilly region; soil carbon component; land use type
分类号:
S153.6
摘要:
采用野外和室内分析相结合的方法，研究了黄土丘陵区基于坡耕地改造或演变的7种土地利用方式的土壤碳组分及碳库各指数的变化。结果表明：与坡耕地相比，其余土地利用方式均能提高土壤碳固持能力，增加土壤碳组分含量、土壤碳库指数（CPI）和碳库管理指数（CPMI），其中有机碳（TOC）、活性有机碳（LOC）及非活性有机碳（NLOC）含量分别较坡耕地增加了42%~125%，36%~136%和31%~161%，总的来说天然灌木林和人工乔木林的改善作用最强。不同土地利用方式下LOC/TOC为46.00%~57.29%，活度（A）为0.87~1.44，其中果园、天然灌木林和梯田的活度最高。土壤碳组分、碳库管理指数和主要化学指标间具有显著的相关性，表明不同土地利用方式对土壤碳固持能力的影响。
Abstract:
By means of field and indoor analysis, the change of soil carbon components and carbon pool indices of 7 kinds of land use patterns in the loess hilly region were studied. The results show that the rest of the land use patterns can improve soil carbon sequestration capacity, increase the contents of soil carbon components and soil carbon pool index (CPI) and carbon pool management index (CPMI) compared with sloping farmland; the content of total organic carbon (TOC), labile organic carbon (LOC) and non-active organic carbon (NLOC) increased by 42%~125%, 36%~136% and 31%~161%, respectively, compared with the sloping cropland. In general, the improvement of natural shrubs and artificial trees is the best. The ratios of LOC to TOC in different land use patterns range from 46.00% to 57.29%, and activity (A) is between 0.87 and 1.44. The orchard, natural shrub forest and terrace have the highest A. There is the significant correlation between soil carbon, carbon pool management indices and main chemical indices, which can reflect the influence of different land uses on soil carbon sequestration capacity.

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备注/Memo

收稿日期:2015-11-25;改回日期:2015-12-04。
基金项目:科技基础性工作专项“（黄土高原生态系统与环境变化考察”（2014FY210100）；国家科技支撑计划“黄土丘陵区退化生态修复技术研发与示范—陕北水蚀区植被功能调控技术与示范”（2015BAC01B03）；中科院西部青年学者项目（XAB2015A05）；陕西省科学技术研究发展计划（2011KJXX36）
作者简介:张娇阳(1989-),女,河南驻马店人,硕士,研究方向:微生物生态。E-mail:zhangjiaoyang@nwsuaf.edu.cn
通讯作者:薛萐(1978-),男,陕西西安人,博士,副研究员,研究方向:微生物生态。E-mail:xuesha100@163.com

更新日期/Last Update: 1900-01-01