Land Use Changes Influence the Soil Enzymatic Activity and Nutrient Status in the Polluted Taojia River Basin in Sub-Tropical China.
Land Use Changes Influence the Soil Enzymatic Activity and Nutrient Status in the Polluted Taojia River Basin in Sub-Tropical China.
复制标题
DOI：
10.3390/ijerph192113999
复制
发表时间：
2022-10-27
影响因子：
--
通讯作者：
Yan, Wende
中科院分区：
文献类型：
--
作者：
Yuan, Chenglin;Liang, Siqi;Wu, Xiaohong;Farooq, Taimoor Hassan;Liu, Tingting;Hu, Yu;Wang, Guangjun;Wang, Jun;Yan, Wende
不同的土地利用做法可能会改善土壤质量，也可能导致土壤退化。近年来，陶家河流域因重污染、水土流失等环境问题，导致土地退化严重。在本研究中，我们探讨了土壤肥力特征（机械组成; pH;土壤有机质（SOM）;土壤全氮（TN）;以及四种酶的活性，即，脲酶、过氧化氢酶、碱性磷酸酶和蔗糖酶）在不同土地利用方式下的变化。从陶家河流域耕地、菜地、林地和荒地4种不同土地利用方式中，分别采集0-10 cm、10-20 cm和20-40 cm土壤样品。结果表明，土壤酶活性与土壤组成密切相关，且相互影响显著（p < 0.05）。林地土壤有机质含量在各土层中均最高。土壤全氮主要取决于生物量的积累和有机质的分解强度，因此，全氮的变化趋势与有机质的变化趋势一致。林地土壤的机械组成有所改善。我们还能够观察到林地土壤中粘土含量的增加。林地土壤还表现出土壤荒漠化的逆转和养分/水分保持能力的增加。因此，增加林地面积是提高陶家河流域生态环境质量的一个合理的土地利用目标。
Different land use practices may improve soil quality or lead to soil deterioration. Recently, environmental problems, such as heavy pollution and soil erosion, have led to serious land degradation in the Taojia River basin. In this study, we explored the soil fertility characteristics (mechanical composition; pH; soil organic matter (SOM); soil total nitrogen (TN); and the activity of four enzymes, i.e., urease, hydrogen peroxide, alkaline phosphatase, and sucrose enzymes) under different types of land use in the Taojia River basin. Soil samples were taken from 0–10 cm, 10–20 cm, and 20–40 cm depths from four different land use types that were widely used in the Taojia river basin, including cultivated land, vegetable fields, woodlands, and wastelands. The results showed that the soil enzyme activity and the constituents of the soil were closely related and significantly affected each other (p < 0.05). Woodland soil exhibited the highest content of SOM in all soil depths. Soil total nitrogen mainly depended on the accumulation of biomass and the decomposition intensity of organic matter, so the changes in TN followed the trends of the changes in SOM. Woodland soil showed an improved mechanical composition. We were also able to observe an increased clay content in woodland soil. Woodland soil also exhibited the reversal of soil desertification and an increase in nutrient/water retention capacity. Therefore, an increase in woodland areas would be an appropriate goal in terms of land use in order to improve the eco-environmental quality of the Taojia River basin.
登录
查看更多内容
DOI：
10.3390/ijerph191610353
发表时间：
2022-08-19
影响因子：
--
作者：
Su, Rongkui;Ou, Qiqi;Wang, Hanqing;Luo, Yiting;Dai, Xiangrong;Wang, Yangyang;Chen, Yonghua;Shi, Lei
通讯作者：
Shi, Lei
影响因子：
3
作者：
Ma, Li;Sun, Jing;Wang, Lin
通讯作者：
Wang, Lin
影响因子：
3.9
作者：
Kebebew, Solomon;Bedadi, Bobe;Wogi, Lemma
通讯作者：
Wogi, Lemma
影响因子：
3.3
作者：
Song, Qin;Gao, Xin;Li, Shengyu
通讯作者：
Li, Shengyu
影响因子：
2.9
作者：
Lasota, Jaroslaw;Blonska, Ewa;Lenart-Boron, Anna
通讯作者：
Lenart-Boron, Anna