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期刊论文 9

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2022 2

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华北地区；生态恢复工程；蒸散发；水储量；植被净初级生产力；自然恢复 1

固碳潜力 1

土壤碳储量 1

大型植物 1

植被碳储量 1

河岸边区域 1

活性氧类 1

环境梯度 1

胁迫指标 1

草地 1

草地退化 1

过氧化氢 1

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Divergent Changes in Vegetation Greenness, Productivity, and Rainfall Use Efficiency Are Characteristic

Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,

《工程（英文）》 doi: 10.1016/j.eng.2023.07.012

摘要： Globally, vegetation has been changing dramatically. The vegetation–water dynamic is key to understanding ecosystem structure and functioning in water-limited ecosystems. Continual satellite monitoring has detected global vegetation greening. However, a greenness increase does not mean that ecosystem functions increase. The intricate interplays resulting from the relationships between vegetation and precipitation must be more adequately comprehended. In this study, satellite data, for example, leaf area index (LAI), net primary production (NPP) and rainfall use efficiency (RUE), were used to quantify vegetation dynamics and their relationship with rainfall in different reaches of the Yellow River Basin (YRB). A sequential regression method was used to detect trends of NPP sensitivity to rainfall. The results showed that 34.53% of the YRB exhibited a significant greening trend since 2000. Among them, 20.54%, 53.37%, and 16.73% of upper, middle, and lower reach areas showed a significant positive trend, respectively. NPP showed a similar trend to LAI in the YRB upper, middle, and lower reaches. A notable difference was noted in the distributions and trends of RUE across the upper, middle, and lower reaches. Moreover, there were significant trends in vegetation–rainfall sensitivity in 16.86% of the YRB’s middle reaches—14.08% showed negative trends and 2.78% positive trends. A total of 8.41% of the YRB exhibited a marked increase in LAI, NPP, and RUE. Subsequently, strategic locations reliant on the correlation between vegetation and rainfall were identified and designated for restoration planning purposes to propose future ecological restoration efforts. Our analysis indicates that the middle reach of the YRB exhibited the most significant variation in vegetation greenness and productivity. The present study underscores the significance of examining the correlation between vegetation and rainfall within the context of the high-quality development strategy of the YRB. The outcomes of our analysis and the proposed ecological restoration framework can provide decision-makers with valuable insights for executing rational basin pattern optimization and sustainable management.

关键词： Vegetation greenness     Vegetation productivity     Rainfall use efficiency     Sensitivity     Yellow River Basin    

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Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

《环境科学与工程前沿（英文）》 2015年 第9卷 第2期   页码 279-287 doi: 10.1007/s11783-014-0667-8

摘要： A riparian ecosystem is an ecological transition zone between a river channel and terrestrial ecosystems. Riparian ecosystems play a vital role in maintaining stream health and bank stabilization. The types of riparian vegetation have changed greatly because of human activities along the Wenyu River. This study examines the impact of riparian vegetation patterns on water pollution due to soil nutrient loss. Four riparian vegetation patterns from the river channel to the upland were chosen as the focus of this study: grassland, cropland, grassland-cropland, and grassland-manmade lawn. The different distributions of soil nutrients along vegetation patterns and the potential risk of nutrient loss were observed and compared. The results showed that riparian cropland has the lowest value of total nitrogen (TN), total phosphorus (TP), available nitrogen (AN), available phosphorus (AP), and organic matter (OM), but it has the highest soil bulk density (BD). The distributions of soil TN, TP, AN, AP, and OM exhibited a declining trend from the upland toward the river channel for riparian cropland, whereas a different trend was observed for the riparian grassland. The vegetation patterns of grassland-cropland and grassland-manmade lawn show that the grassland in the lower slope has more nutrients and OM but lower soil BD than the cropland or manmade lawn in the upper slope. So, the lower-slope grassland may intercept and infiltrate surface runoff from the upland. The lower-slope grassland has higher levels of soil TN, TP, AN, and AP, and thus it may become a new source of nutrient loss. Our results suggest that the management of the riparian vegetation should be improved, particularly in densely populated areas, to control soil erosion and river pollution.

关键词： riparian     vegetation patterns     soil nutrient distribution     nutrient loss     management    

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Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering

Jie HAN,Jun GUO

《结构与土木工程前沿（英文）》 2017年 第11卷 第1期   页码 56-65 doi: 10.1007/s11709-016-0380-8

摘要： Geosynthetics, factory-manufactured polymer materials, have been successfully used to solve many geotechnical problems in civil engineering. Two common applications are earth stabilization and erosion control. Geosynthetics used for earth stabilization include but are not limited to stabilized slopes, walls, embankments, and roads. Geosynthetics used for erosion control are mostly related to slopes, river channels and banks, and pond spillways. To enhance environmental sustainability, vegetation has been increasingly planted on the facing or surfaces of these earth structures. Under such a condition, geosynthetics mainly function as surficial soil stabilization while vegetation provides green appearance and erosion protection of earth surfaces. Recently, geosynthetic or geosynthetic-like material has been used to form green walls outside or inside buildings to enhance sustainability. Geosynthetics and vegetation are often integrated to provide combined benefits. The interaction between geosynthetics and vegetation is important for the sustainability of the earth and building wall surfaces. This paper provides a review of the current practice and research in the geosynthetic stabilization of vegetated earth and building surfaces for environmental sustainability in civil engineering with the emphases on geosynthetic used for erosion protection, geosynthetic-stabilized slopes, geosynthetic-stabilized unpaved shoulders and parking lots, and geosynthetic-stabilized vegetated building surfaces.

关键词： erosion     geosynthetic     stabilization     sustainability     vegetation    

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Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to vegetation

《环境科学与工程前沿（英文）》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1523-x

摘要：

• In sediments, the transformation of sulfides may lead to the release of heavy metals.

关键词： Coastal wetland     Heavy metal     Sulfur     Biogeochemical cycle    

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Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

《结构与土木工程前沿（英文）》 2008年 第2卷 第4期   页码 366-370 doi: 10.1007/s11709-008-0056-0

摘要： Through field investigation, this paper examined the changes of ecological conditions induced by tunnel construction in Laoshan Mountain area, Nanjing, Jiangsu Province, P. R. China. The effects of habitat fragmentation and edge effect are examined and discussed. It is found that the environmental factors and vegetation situation have been influenced by the tunneling activity, and the disturbed area is approaching the sampling patch centre. The changed ecological conditions are beneficial for the settlement and growth of some herb and shrub species, and are unfavorable for the existence and growth of saplings, especially for the predominant species (e.g., robur) in this area. If the time of habitat fragmentation is long enough and there is no supplement from external areas, some vegetation species in the engineering influencing area will deteriorate, or even diminish in the future. The results can be used as a reference for the long-term ecological study in this area.

关键词： supplement     fragmentation     reference     tunneling activity     vegetation situation    

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Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

《农业科学与工程前沿（英文）》 2014年 第1卷 第2期   页码 150-157 doi: 10.15302/J-FASE-2014028

摘要： The effect of the urease inhibitor, N-(n-butyl) thiophosphoric triamide (NBPT) at a range of application rates on rice production was examined in a field experiment at Jinxian County, Jiangxi Province, China. The normalized difference vegetation index (NDVI) was measured at key growth stages in both early and late rice. The results showed that the grain yield increased significantly when urea was applied with NBPT, with the highest yield observed at 1.00% NBPT (wt/wt). NDVI differed with the growth stage of rice; it remained steady from the heading to the filling stage. Rice yield could be predicted from the NDVI taken at key rice growing stages, with ranging from 0.34 to 0.69 in early rice and 0.49 to 0.70 in late rice. The validation test showed that RMSE (t·hm ) values were 0.77 and 0.87 in early and late rice, respectively. Therefore, it was feasible to estimate rice yield for different amounts of urease inhibitor using NDVI.

关键词： normalized difference vegetation index (NDVI)     N-(n-butyl) thiophosphoric triamide (NBPT)     rice     grain yield    

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我国草地的固碳功能

高树琴,赵霞,方精云

《中国工程科学》 2016年 第18卷 第1期   页码 73-79 doi: 10.15302/J-SSCAE-2016.01.010

摘要：

本文通过综述当前我国草地碳库的研究成果，并利用1982—2011年的遥感影像，估算出我国草地生态系统碳库约为31.2 PgC，其中96 %储存于土壤中。由于我国草地类型多样，分布地域广阔，造成草地植被碳密度分布的空间异质性很高。内蒙古是草地植被碳库最大的省份，其次是西藏和青海，六大牧区的植被碳库占全国草地植被碳库总量的71 %。然而，我国90 %的天然草地发生不同程度的退化，采取有效的人工管理措施和实施重大的生态建设工程，均对草地碳库的恢复具有明显的作用，说明我国草地有很大的碳汇潜力。

关键词： 草地     植被碳储量     土壤碳储量     草地退化     固碳潜力    

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华北地区生态保护与恢复的水资源效应研究

孙思琦,陈永喆,王聪,胡庆芳,吕一河

《中国工程科学》 2022年 第24卷 第5期   页码 97-106 doi: 10.15302/J-SSCAE-2022.05.012

摘要：

近年来，华北地区实施了一系列生态保护与恢复工程，植被生态状况发生了显著变化；探究区域植被恢复对水循环过程及水资源供需平衡的影响，对于完善生态恢复策略、实现区域水资源可持续利用十分重要。本文采用皮尔逊相关系数和莫兰指数，结合多源水参量数据进行综合性分析，阐释了植被和不同水参量的时空变化情况，甄别了植被保育与恢复下的水资源变化响应，进而探讨了华北地区水资源与植被恢复的权衡关系。研究结果表明，华北地区的生态保护与恢复工程成效显著，植被净初级生产力的增速约为恢复工程区外的2.3 倍；植被的扩张与蒸散量表现出空间与时间上的强相关性；植被恢复引起的蒸散量提高是引起水储量赤字或显著降低的主要原因。为此建议，华北地区可完善生态恢复策略，在植被保育与恢复过程中考虑水资源的限制作用；以自然恢复方式为主，促进生态恢复的可持续性、水资源的可利用性。

关键词： 华北地区；生态恢复工程；蒸散发；水储量；植被净初级生产力；自然恢复    

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过氧化氢作为环境胁迫指标在植被管理中的应用 Article

Takashi Asaeda, Senavirathna Mudalige Don Hiranya Jayasanka, Li-Ping Xia, Abner Barnuevo

《工程（英文）》 2018年 第4卷 第5期   页码 610-616 doi: 10.1016/j.eng.2018.09.001

摘要：

适应性植被管理非常耗时，其需要长时间的野外监测以获取可靠的数据。目前适应性植被管理手段虽已被广泛应用，但在进行栖息地状况评估时，仍然依赖于长时间的野外观测。目前的植被相关研究中，活性氧类（ROS）已经被视为一种环境胁迫指标。在这些ROS中，过氧化氢（H2O2）相对稳定，并且可以被准确、方便地量化。植物中H2O2含量可以被用作岸生和水生植被管理过程的胁迫指标，同时可以用来评估栖息地中单一植物物种的生长状况。本研究证明了植被管理中应用H2O2作为定量化环境胁迫指标的可行性。在实验室和野外（日本的真嗣湖、沙巴河、伊诺河和海河）条件下，分别开展了不同胁迫程度下大型水生植物和岸生植物生成H2O2情况的研究，结果表明H2O2可以作为环境管理中的胁迫指标。

关键词： 大型植物     河岸边区域     环境梯度     胁迫指标     活性氧类     过氧化氢    

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标题 作者 时间 类型 操作

Divergent Changes in Vegetation Greenness, Productivity, and Rainfall Use Efficiency Are Characteristic

Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,

期刊论文

Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

期刊论文

Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering

Jie HAN,Jun GUO

期刊论文

Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to vegetation

期刊论文

Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

期刊论文

Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

期刊论文

我国草地的固碳功能

高树琴,赵霞,方精云

期刊论文

华北地区生态保护与恢复的水资源效应研究

孙思琦,陈永喆,王聪,胡庆芳,吕一河

期刊论文

过氧化氢作为环境胁迫指标在植被管理中的应用

Takashi Asaeda, Senavirathna Mudalige Don Hiranya Jayasanka, Li-Ping Xia, Abner Barnuevo

期刊论文