|本期目录/Table of Contents|

[1]刘 颖,贺静雯,吴建召,等.震区典型受损区生态恢复的土壤恢复率与空间异质性*[J].应用与环境生物学报,2019,25(04):1-5.
 LIU Ying,HE Jingwen,et al.Soil recovery rate and spatial heterogeneity in the process of ecological restoration in earthquake affected area*[J].Chinese Journal of Applied & Environmental Biology,2019,25(04):1-5.
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震区典型受损区生态恢复的土壤恢复率与空间异质性*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年04期
页码:
1-5
栏目:
出版日期:
2019-07-30

文章信息/Info

Title:
Soil recovery rate and spatial heterogeneity in the process of ecological restoration in earthquake affected area*
作者:
刘 颖1 2 贺静雯1 2 吴建召1 2 崔 羽1 2 罗清虎1 2 林勇明1 2** 王道杰3 李 键1 2
1福建农林大学林学院 福州 3500022福建省高校森林生态系统过程与经营重点实验室 福州 3500023中国科学院水利部成都山地灾害与环境研究所 成都 640001
Author(s):
LIU Ying1 2 HE Jingwen1 2 WU Jianzhao1 2 CUI Yu12 LUO Qinghu1 2 LIN Yongming1 2** WANG Daojie3 & LI Jian1 2
1 College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China 2 Key Laboratory for Forest Ecosystem Process and Management of Fujian province, Fuzhou 350002, China 3 Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 640001, China
关键词:
地震灾区土壤养分恢复率变异系数化学计量比
Keywords:
earthquake affected areasoil nutrientrecovery ratevariable coefficientstoichiometric ratio
摘要:
在我国西南强地震影响区生态恢复重建的背景下,探明不同气候区不同恢复条件下的土壤有机碳(SOC)、全氮(TN)和全磷(TP)的恢复率以及空间异质性及其演变规律,对准确认识生态恢复作用下灾害干扰区的土壤恢复动态变化具有重要意义。选取汶川地震灾区干旱河谷气候区和亚热带季风气候区的受损治理区为研究样地,以邻近的未受损区为对照,分析地震后恢复期受损治理区土壤SOC、TN、TP的恢复率以及空间异质性的分布规律。研究结果表明,两种气候区内受损治理区SOC、TN、TP的含量整体上显著低于未受损区的含量,说明地震后受损治理区的养分状况尚未恢复至震前水平。3%-58%)、TP(51%-58%)高于干旱河谷季风气候区TN(32%-36%)、TP1%-49%),SOC的平均恢复率在两个气候区表现基本一致,亚热带季风气候区具有更高的养分恢复率干旱河谷气候区受损治理区和未受损区的养分变异系数均高于亚热带季风气候区,说明干旱河谷气候区土壤结构稳定性较差,受灾害破坏更为严重,土壤养分的空间异质性较大,发生水土流失及次生灾害的可能性更大。干旱河谷气候区受损治理区的C:N值大于未受损区,而亚热带季风气候区则相反;两种气候区未受损区的C:P、N:P值整体上均大于受损治理区,但差异不显著。上述研究表明灾区土壤养分结构受到严重破坏,而气候可能是影响土壤恢复的主导因子,该研究结果可为灾区生态恢复进程提供理论依据。(图2 表4 参38)
Abstract:
In order to improve ecological restoration and reconstruction and accurately understand the dynamic changes of soil recovery in the area affected by strong earthquakes, in southwest China, it is of great importance to find out the recovery rate and spatial heterogeneity of soil organic carbon (SOC), total nitrogen (TN) and total phosphorus (TP) under different restoration conditions in different climate zones. Taking the adjacent undestroyed area as the control, the destroyed and treated areas of ??the arid valley climate zone and the subtropical monsoon climate zone in Wenchuan earthquake affected area were selected as the research plots, to analyze the recovery rate of SOC, TN, TP and the distribution of spatial heterogeneity after the earthquake. The results showed that the contents of SOC, TN and TP in the destroyed and treated areas in the two climate zones were significantly lower than those in the undestroyed areas, indicating that nutrient condition of destroyed and treated areas after the earthquake did not recovered to the pre-earthquake level. The recovery rate of TN (range 53%-58%), TP (range 51%-58%) in the subtropical monsoon climate zone was higher than that of TN (range 32%-36%), TP (range 41%-49%) in the arid valley climate zone, as the average recovery rate of SOC had the same performance in two climate zones. The subtropical monsoon climate zone had higher nutrient recovery rate. The nutrient variation coefficient of destroyed and treated area and undestroyed areas in arid valley climate zone was higher than that of subtropical monsoon climate zone, indicating that soil structure stability in the arid valley climate zone was poor and seriously destroyed by disaster with the spatial heterogeneity of soil nutrients and high possibility of soil erosion and secondary disasters. The C:N value of the destroyed and treated area in the arid valley climate zone was larger than that of the undestroyed zone, while the subtropical monsoon climate zone was the opposite. The C:P and N:P values ??of the undestroyed zone of the two climate zones were all greater than the destroyed and treated area, but the difference was not significant. Our studies indicated that the soil nutrient structure in the disaster area was seriously damaged and climate may be the dominant factor affecting soil recovery. The research results can provide a theoretical basis for the ecological restoration process in the disaster area

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备注/Memo

备注/Memo:
(*国家自然科学基金项目41790434)、福建农林大学杰出青年科研人才计划项目科技创新专项基金项目CXZX2017111和CXZX2017283)资助 Supported by the National Natural Science Foundation of China (41790434), the Outstanding Young Scientific Research Project of Fujian Agriculture and Forestry University (xjq201716) and the Scientific and Technological Innovation Foundation of Fujian Agriculture and Forestry University (CXZX2017111 and CXZX2017283)**收稿日期 Received: 2018-12-12 接受日期 Accepted: 2019-01-22
更新日期/Last Update: 2019-02-01