Response of shallow karst fissure soil quality to secondary succession in a degraded karst area of southwestern China
Response of shallow karst fissure soil quality to secondary succession in a degraded karst area of southwestern China
复制标题
西南岩溶退化区浅层岩溶裂隙土壤质量对次生演替的响应
DOI：
10.1016/j.geoderma.2019.04.017
复制
发表时间：
2019-08
期刊：
影响因子：
6.1
通讯作者：
Mei Lina
中科院分区：
文献类型：
--
作者：
Yan Youjin;Dai Quanhou;Wang Xiangdong;Jin Li;Mei Lina
植被恢复是治理水土流失的有效手段之一，也是脆弱喀斯特石漠化地区生态环境恢复的重要手段。土壤充填的浅层岩溶裂隙已成为该地区重要的根系生境之一。科学地评估SKF的土壤质量并为物种与场地的匹配提供依据至关重要。在这里，我们探索并深入了解SKF土壤理化性质对植被演替不同阶段的响应特征。此外，我们开发了一个综合评价系统，以确定土壤质量。主要结果如下。在地表和SKF之间的土壤性质存在显着差异。与地表相比，SKF土壤结构性较差，但水分条件较好。SKF内土壤养分含量显著低于表层（p <0.05），但SKF内土壤养分含量差异不显著。土壤质量指数（SQI）值在SKF土壤中显著低于表层（p <0.05），且随土层深度的增加而逐渐降低。次生演替显著改善了土壤性质，提高了土壤质量。随着植被的恢复，地表和SKF的土壤性质得到明显改善。随着演替的进行，土壤理化性质和SQI值的差异逐渐缩小。此外，SKF土壤的厚度是表层土壤的两倍多。总体而言，SKF的土壤性质和土壤质量相对较差，但随着植被恢复，它们得到了很大的改善。SKF的生境可以作为植被恢复的首选生境，更有利于根系较深和根系穿透能力较高的植物。研究结果可为中国西南部、越南北方和中部、印度尼西亚爪哇岛和贡布省、柬埔寨西南部等具有相同生态背景的喀斯特地区的喀斯特石漠化防治和植被恢复研究提供参考。
Vegetation restoration is one of the effective means to control soil erosion and an essential method of eco-environmental restoration in fragile karst rocky desertification areas. The shallow karst fissure (SKF) filled with soil has become one of the most important root habitats in this area. It is essential to scientifically evaluate the soil quality of SKF and to provide a basis for matching species with sites. Here, we explore and gain insight into the characteristics of the response of the physicochemical properties of SKF soil to different stages of vegetation succession. Additionally, we develop a synthetical assessment system to determine soil quality. The key results were as follows. Significant differences were found in the soil properties between the surface and the SKF. Compared with the surface, the SKF soil structural property was poor, but the water conditions were better. The soil nutrient content of the SKF was significantly (p< 0.05) lower than that of the surface, but the differences in soil nutrients inside the SKF were not significant. In addition, the soil quality indicator (SQI) values of the SKF soil were significantly (p< 0.05) lower than those of the surface and decreased gradually with soil depth. Moreover, secondary succession significantly (p< 0.05) improved the soil properties and, thus, the soil quality. With recovery of vegetation, the soil properties of the surface and the SKF were significantly improved. The difference in the soil properties and the SQI values between the surface and underground gradually narrowed with succession. Furthermore, the thickness of the SKF soil was more than twice that of the surface soil. Overall, the soil properties and the soil quality of the SKF were relatively poor, but they were greatly improved with vegetation restoration. The SKF habitat can be the preferred habitat for vegetation restoration and is more favourable for plants with deep roots and a higher root penetration ability. The results of this study can supply references for future studies on karst rocky desertification control and vegetation restoration in the karst area of southwestern China, northern and central Vietnam, the islands of Java, Indonesia and Kampot Province, southwestern Cambodia and other karst regions with the same ecological background.
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DOI：
10.11867/j.issn.1001-8166.2001.04.0461
发表时间：
2001-08
期刊：
Advances in Earth Science
影响因子：
--
作者：
Y. Dao-xian
通讯作者：
Y. Dao-xian
DOI：
10.1038/ismej.2014.210
发表时间：
2015-05
期刊：
The ISME journal
影响因子：
--
作者：
通讯作者：
--
中国西南喀斯特地区植物功能群叶N:P化学计量
DOI：
10.1007/s00468-015-1170-y
发表时间：
2015-03
期刊：
Trees - Structure and Function
影响因子：
--
作者：
Pan, Fujing;Liu, Shujuan;Li, Dejun;Wang, Kelin
通讯作者：
Wang, Kelin
西南岩溶地区次生演替过程中氮磷限制的变化
影响因子：
4.9
作者：
Pan, Fujing;Li, Dejun;Chen, Hongsong;Wang, Kelin
通讯作者：
Wang, Kelin
喀斯特高原植被恢复后根际与非根际土壤微量元素的分布与积累
影响因子：
4.9
作者：
Peng Xudong;Dai Quanhou;Ding Guijie;Zhu Chao;Li Changlan
通讯作者：
Li Changlan