Improvements in Soil Carbon and Nitrogen Capacities after Shrub Planting to Stabilize Sand Dunes in China’s Horqin Sandy Land

Li, Yuqiang; Chen, Yinping; Wang, Xuyang; Niu, Yayi; Lian, Jing

doi:10.3390/su9040662

Cited by 28 publications

(23 citation statements)

References 43 publications

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“…The variation trends in the average content and storage of the SOC and TN at depths from 0-100 cm were the same as the dynamic changes of the vegetation at each successional stage. This strongly supports related studies where SOC changed with the variety of sand-binding vegetation in desert ecosystems [33,44,45]. However, different soil depths affect the C and N sequestration at significantly different degrees with the expansion of vegetation.…”

Section: Effects Of N Tangutorum Succession On Soil C and N Contentsupporting

confidence: 88%

Change in Characteristics of Soil Carbon and Nitrogen during the Succession of Nitraria Tangutorum in an Arid Desert Area

et al. 2019

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The shrub Nitraria tangutorum is distributed widely in arid desert areas, and plays a critical role in the desert–oasis ecosystem. This study quantified varying characteristics of carbon (C) and nitrogen (N) in the soil at four stages—the initial stage (IS), stable stage (SS), degradation stage (DS), and severe degradation stage (SDS)—in a steppe ecosystem in the desert of northwestern China. The results indicated that N. tangutorum experienced both expansion and deterioration as a decline of 50.7% occurred in the available soil water due to agricultural utilization, and the plant community transformed from being shrub-dominated to annual herb-dominated. At soil layer depths between 0–100 cm in the N. tangutorum nebkha dune ecosystem, organic C and total N storage was 1195.84 g/m2 and 115.01 g/m2 during the SDS, respectively, with an increase of 11.13% and 12.59% from the IS. In addition, the storage of C and N in the soil increased during the IS as well as the SS, when most of the C and N were accumulated, and the storage decreased during the DS and SDS, as the N. tangutorum communities declined. At soil layer depths between 0–100 cm in the desert steppe ecosystem, the highest storage levels of C and N were 8465.97 g/m2 and 749.29 g/m2 during the SS, and the lowest were 1076.12 g/m2 and 102.15 g/m2 during the IS, respectively. The changes and accumulation of C and N were greater in the deeper (40–100 cm) layer than in the surface layer of soil (0–40 cm). Lastly, changes in soil organic carbon (SOC) as well as in the total nitrogen (TN) were strongly related to the coverage degree, water content in soil, and the ratio of fine soil particles (silt and clay). To sum up, the intensive development of water resources has vastly reduced the ability of N. tangutorum vegetation to sequester C and N in the desert of Minqin. Efforts to perform ecological restoration and reverse desertification in the Minqin Desert should focus on preventing the unreasonable exploitation of water resources in order to maintain stable N. tangutorum communities.

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Section: Effects Of N Tangutorum Succession On Soil C and N Contentsupporting

confidence: 88%

Change in Characteristics of Soil Carbon and Nitrogen during the Succession of Nitraria Tangutorum in an Arid Desert Area

et al. 2019

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“…These shifts result in different amounts and quality of litter (leaves and fine roots) input, nutrient uptake by trees, and microclimates for litter decomposition, which, in turn, influence soil organic carbon (SOC), total nitrogen (N), and total phosphorous (P) dynamics and their stoichiometry (carbon (C):N:P ratio), ultimately affecting nutrient recycling [1,2]. SOC, N, and P reflect soil fertility and terrestrial productivity [2][3][4][5][6]. Understanding how forest restoration affects SOC, N, P, and their stoichiometry (C:N:P ratio) is critical for predicting C pools, soil nutrient balance, and achieving sustainable forest management [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Forest Restoration on Soil Carbon, Nitrogen, Phosphorus, and Their Stoichiometry in Hunan, Southern China

et al. 2018

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Forest restoration affects nutrient cycling in terrestrial ecosystems. However, the dynamics of carbon (C), nitrogen (N), and phosphorous (P), and their stoichiometry (C:N:P ratio) in the soil during forest restoration are poorly understood in subtropical areas. In the current study, we collected soil samples at three depths (0-10, 10-20, and 20-30 cm) at three restoration stages (early, intermediate, and late) in subtropical forests. Soil organic carbon (SOC), total nitrogen (N), and total phosphorous (P) concentrations were determined. Forest restoration significantly affected soil nutrient concentrations and stock (p < 0.05). SOC concentrations increased from 12.6 to 18.6 g/kg and N concentrations increased from 1.2 to 1.6 g/kg, while P decreased from 0.3 to 0.2 g/kg. A similar pattern of change was found for the nutrient stock as restoration proceeded. C:P and N:P ratios increased to a greater extent than that of C:N ratios during forest restoration, implying that subtropical forests might be characterized by P limitation over time. The slopes and intercepts for the linear regression relationships between SOC, N, and P concentrations were significantly different across the forest restoration stages (p < 0.05). This indicated that forest restoration significantly affects the coupled relationships among C-N, C-P, and N-P in subtropical forest soil. Our results add to the current body of knowledge about soil nutrient characteristics and have useful implications for sustainable forest management in subtropical areas.

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“…Данные исследования являются частью государственной программы «China's Three-Norths Shelter Forest Program», реализация которой была рассчитана на период с 1978 по 2050 гг. Главной целью данной программы является создание «Великой Зеленой Стены» («Green Great Wall»), предназначенной для борьбы с опустыниванием, пыльными бурями, деградацией почв и дефицитом воды в ландшафтах [Li et al, 2017]. Исследования водного баланса в катенарных почвенных сопряжениях на территории с дюнным рельефом, покрытым караганой и тамариксом в песчаной области Северо-Восточного Китая (Horqin sandy land of Northeastern China) показали, что наименее благоприятными являются нижние части склонов дюн, эвапотранспирация с поверхности которых полностью перехватывает боковой сток, не доходящий до междюнных понижений [Zhou et al, 2017].…”

Section: научные ведомостиunclassified

“…Исследование искусственных посадок караганы разного возраста и их влияния на плодородие песчаных почв в рассматриваемой области выявило закономерное накопление в почвах углерода органического вещества и азота (максимальное в слое 0-20 см, но распространяющееся до глубины 1 метра) по мере увеличения возраста лесонасаждений. Вместе с тем отмечается низкая интенсивность саморазвития указанных биогеоценозов, которые могут достичь зрелого состояния и максимального эффекта секвестирования атмосферного углерода лишь спустя 100 лет после начала посадки караганы [Li et al, 2017]. В гумидном климате умеренного пояса Центральной Европы (подзона южнотаежных ландшафтов) важное значение придается полезащитным лесополосам как биогеохимическим барьерам, играющим роль своеобразных фильтров на пути миграции веществ в агроландшафтах.…”

Section: научные ведомостиunclassified

Assessment of the Role of Shelterbelts in Optimization of Soils and Landscapes: Literature Review of Information

2019

NV BSU. Series Natural Sciences

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Аннотация В статье рассматриваются представления о многоплановой роли лесополос в агролесомелиоративном обустройстве территорий. Авторами был сделан акцент на анализе влияния лесополос на свойства почв как главного объекта труда и ресурса получения высоких урожаев-для возрождения интереса к воспроизводству и оптимизации состояния лесополос. Кратко освещаются исторические этапы внедрения агролесомелиорации на территории России, характеризуется современное состояние вопроса. Обсуждаются аспекты изменения гумусного состояния почв в зоне влияния лесополос. Отмечается роль многолетних исследований почв на территории Каменной степи. Рассматривается своеобразие использования лесополос в ландшафтах различных географических регионов Земли. Подчеркивается, что одним из регионов, в котором важна агролесомелиорация, является территория Центрального Черноземья и Белгородской области, в частности.

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Improvements in Soil Carbon and Nitrogen Capacities after Shrub Planting to Stabilize Sand Dunes in China’s Horqin Sandy Land

Cited by 28 publications

References 43 publications

Change in Characteristics of Soil Carbon and Nitrogen during the Succession of Nitraria Tangutorum in an Arid Desert Area

Change in Characteristics of Soil Carbon and Nitrogen during the Succession of Nitraria Tangutorum in an Arid Desert Area

Effects of Forest Restoration on Soil Carbon, Nitrogen, Phosphorus, and Their Stoichiometry in Hunan, Southern China

Assessment of the Role of Shelterbelts in Optimization of Soils and Landscapes: Literature Review of Information

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