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A review on anthropogenic geomorphology

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Journal of Geographical Sciences 2017年第1期27卷 109-128页

作者： LI Jialin YANG Lei pu ruiliang LIU Yongchao Department of Geography & Spatial Information Technology Ningbo University Ningbo 315211 Zhejiang China Research Center for Marine Culture and Economy Zhejiang Province Ningbo 315211 Zhejiang China School of Geosciences University of South Florida Tampa. FL 33620 USA

With the continuous development of man＇s ability to reshape naturehuman activities have become the third geomorphologic agent in the modern geomorphological process. Man-made landform is a landform unit characterized by human activities and is a result of synergizing human and nature geomorphologic agents under the physical geographical background. This article provides an overview on the major progresses in research on anthropogenic geomorphology from aspects like the origin of anthropogenic geomorphologyman-made landform agents and classificationman-made landform evolution and its influencing mechanismmap presentation of man-made landformand environmental impact of man-made landforms. In additionin the articlethe future development of anthropogenic geomorphology is forecasted. It is pointed out that future studies on anthropogenic geomorphology should pay more attention to the following directions： construction of discipline system of anthropogenic geomorphologymaterial composition and morphological features of man-made landformsspatial expansion process and development laws of man-made landformsregional disparity and accumulative environmental effects of man-made landformsand environmental management on man-made landforms and comparative analyses of relevant international management policies.

关键词： anthropogenic geomorphology the third geomorphologic agent man-made landform evolution urban anthropogenic geomorphology man-made landform environmental management

Construction of ecological security patterns and ecological restoration zones in the city of Ningbo,China

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Journal of Geographical Sciences 2022年第4期32卷 663-681页

作者： ZHANG Haitao LI Jialin TIAN Peng pu ruiliang CAO Luodan Department of Geography and Spatial Information Techniques Ningbo UniversityNingbo 315211ZhejiangChina Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research at Ningbo University Ningbo 315211ZhejiangChina School of Geosciences University of South FloridaTampaFL 33620-5250USA

Studying an ecological restoration zoning process under the background of ecological security patterns is of great significance to the rapid adjustment and optimization of a landscape *** this study,a remote sensing ecological index and a morphological spatial pattern analysis method were used to assess the quality of habitats and identify ecological sources in the city of Ningbo;ecological corridors,ecological pinch points,and ecological barrier points were extracted by using a circuit theory to construct ecological security patterns and ecological restoration *** results indicate:(1)There were 47 ecological sources,and 83 key ecological corridors in Ningbo,and the ecological land area was about 1898.39 km^(2),accounting for 19.89%of the total study area.(2)The ecological source areas were distributed in“one patch and three belts”,and the low-resistance ecological corridors were concentrated in southern Yuyao city,western Haishu district,and central and western Fenghua district;the ecological network in the western and southern regions was dense.(3)There were four types of ecological restoration zones that need to be established,which were prioritized restoration zones,prioritized protection zones,key conservation zones,and general conservation zones distributed hierarchically from inner part towards outside.(4)Ninghai county,Yuyao city,and Fenghua district had large ecological land areas,however,prioritized restoration and protection zones in Ninghai and Fenghua were also *** analysis results are expected to provide a reference for optimizing a territorial ecological space in a city.

关键词： remote sensing ecological index ecological security patterns circuit theory ecological restoration zones Ningbo City

Extracting Eco-hydrological Information of Inland Wetland from L-band Synthetic Aperture Radar Image in Honghe National Nature Reserve, Northeast China

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Chinese Geographical Science 2011年第2期21卷 241-248页

作者： SUN Yonghua GONG Huili LI Xiaojuan pu ruiliang LI Shuang College of Resources Environment & Tourism Capital Normal University Beijing 100048 China National Key Laboratory Cultivation Base of Urban Environmental Processes & Digital Analog Beijing 100048 China 3. Department of Geography University of South Florida Tampa FL 33620 USA

Taking a typical inland wetland of Honghe National Nature Reserve (HNNR), Northeast China, as the study area, this paper studied the application of L-band Synthetic Aperture Radar (SAR) image in extracting eco-hydrological information of inland wetland. Landsat-5 TM and ALOS PALSAR HH backscatter images were first fused by using the wavelet-IHS method. Based on the fused image data, the classification method of support vector machines was used to map the wetland in the study area. The overall mapping accuracy is 77.5%. Then, the wet and dry aboveground biomass estimation models, including statistical models and a Rice Cloudy model, were established. Optimal parameters for the Rice Cloudy model were calculated in MATLAB by using the least squares method. Based on the validation results, it was found that the Rice Cloudy model produced higher accuracy for both wet and dry aboveground biomass estimation compared to the statistical models. Finally, subcanopy water boundary information was extracted from the HH backscatter image by threshold method. Compared to the actual water borderline result, the extracted result from L-band SAR image is reliable. In this paper, the HH-HV phase difference was proved to be valueless for extracting subcanopy water boundary information.

关键词： inland wetland ALOS PALSAR wetland mapping aboveground biomass estimation subcanopy water boundary extraction

The continuous wavelet projections algorithm: A practical spectral-feature-mining approach for crop detection

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The Crop Journal 2022年第5期10卷 1264-1273页

作者： Xiaohu Zhao Jingcheng Zhang ruiliang pu Zaifa Shu Weizhong He Kaihua Wu College of Artificial Intelligence Hangzhou Dianzi UniversityHangzhou 310018ZhejiangChina School of Geosciences University of South FloridaTampaFL 33620USA Lishui Institute of Agriculture and Forestry Sciences Lishui 323000ZhejiangChina

Spectroscopy can be used for detecting crop characteristics. A goal of crop spectrum analysis is to extract effective features from spectral data for establishing a detection model. An ideal spectral feature set should have high sensitivity to target parameters but low information redundancy among ***, feature-selection methods that satisfy both requirements are lacking. To address this issue,in this study, a novel method, the continuous wavelet projections algorithm(CWPA), was developed,which has advantages of both continuous wavelet analysis(CWA) and the successive projections algorithm(SPA) for generating optimal spectral feature set for crop detection. Three datasets collected for crop stress detection and retrieval of biochemical properties were used to validate the CWPA under both classification and regression scenarios. The CWPA generated a feature set with fewer features yet achieving accuracy comparable to or even higher than those of CWA and SPA. With only two to three features identified by CWPA, an overall accuracy of 98% in classifying tea plant stresses was achieved, and high coefficients of determination were obtained in retrieving corn leaf chlorophyll content(R^(2)= 0.8521)and equivalent water thickness(R^(2)= 0.9508). The mechanism of the CWPA ensures that the novel algorithm discovers the most sensitive features while retaining complementarity among features. Its ability to reduce the data dimension suggests its potential for crop monitoring and phenotyping with hyperspectral data.

关键词： Hyperspectral Crop parameters Crop phenotyping Continuous wavelet analysis Successive projections algorithm

Spatiotemporal pattern of urban forest leaf area index in response to rapid urbanization and urban greening

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Journal of Forestry Research 2018年第3期29卷 777-788页

作者： Zhibin Ren Yunxia Du Xingyuan He ruiliang pu Haifeng Zheng Haide Hu Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences School of Geosciences University of South Florida Department of Architecture and Design Changchun Institute of Technology

Rapid urbanization and urban greening have caused great changes to urban forests in China. Understanding spatiotemporal patterns of urban forest leaf area index(LAI) under rapid urbanization and urban greening is important for urban forest planning and management. We evaluated the potential for estimating urban forest LAI spatiotemporally by using Landsat TM imagery. We collected three scenes of Landsat TM(thematic mapper)images acquired in 1997, 2004 and 2010 and conducted a field survey to collect urban forest LAI. Finally, spatiotemporal maps of the urban forest LAI were created using a NDVI-based urban forest LAI predictive *** results show that normalized differential vegetation index(NDVI) could be used as a predictor for urban forest LAI similar to natural forests. Both rapid urbanization and urban greening contribute to the changing process of urban forest LAI. The urban forest has changed considerably from 1997 to 2010. Urban vegetated pixels decreased gradually from 1997 to 2010 due to intensive *** area for the study area was 216.4, 145.2 and173.7 km~2 in the years 1997, 2004 and 2010, *** forest LAI decreased sharply from 1997 to 2004 and increased slightly from 2004 to 2010 because of numerous greening policies. The urban forest LAI class distributions were skewed toward low values in 1997 and 2004. Moreover, the LAI presented a decreasing trend from suburban to downtown areas. We demonstrate the usefulness of TM remote-sensing in understanding spatiotemporal changing patterns of urban forest LAI under rapid urbanization and urban greening.

关键词： Spatiotemporal analysis LAI Landsat TM imagery NDVI

Ecosystem service valuation of bays in East China Sea and its response to sea reclamation activities

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Journal of Geographical Sciences 2020年第7期30卷 1095-1116页

作者： LIU Ruiqing XU Hao LI Jialin pu ruiliang SUN Chao CAO Luodan JIANG Yimei TIAN Peng WANG Lijia GONG Hongbo Donghai Institute Ningbo UniversityNingbo 315211ZhejiangChina Department of Geography&Spatial Information Techniques Ningbo UniversityNingbo 315211ZhejiangChina School of Geosciences University of South FloridaTampaFL 33620-5250USA

Ecosystem service values(ESVs)of bays and their response to sea reclamation are of great practical importance for forming bay eco-compensation policy and extension of blue economic *** on land use information of bays collected during the period of 1990–2015,the spatiotemporal evolution of ESVs of 12 main bays in East China Sea and their response to sea reclamation activities over the past 25 years were quantitatively *** analysis results indicate that ESVs of bays in East China Sea showed a continuous downward trend and the whole ecosystem was continuously degraded,in which the degradation degree of ESV in the southern bays was higher than that in the northern *** zoning of ESVs of bays in East China Sea was remarkable,showing a continuous downward trend from low-value to high-value *** variation of ESVs of each bay was also significant,expanding from a city and from inland to the coast,which suggests that human activities,mainly reclamation,have become main agents for ESV evolution of bays in East China *** of bays have a significant response to sea reclamation,manifested as a significant negative correlation between ESV and reclamation *** correlation in the southern bays was stronger than that in the northern bays,which was caused by different effects of sea reclamation modes on ESV evolution of muddy and bedrock bays.A negative effect of sea reclamation activities on bay ecosystem was ***,an attention should be paid to dynamic monitoring and early warning of development status in offshore areas,ecosystem-level reclamation control policy,and coastal wetland reserves ***,the spatial coupling mechanism study between bay ecosystem service demand and its service supply capacity should be strengthened to realize systematic regulation of bay ecological security pattern.

关键词： reclamation ecosystem service value correlation analysis bay East China Sea

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方向对比度和区域标准差相结合的图像融合

计算机工程与应用 2014年第6期50卷 31-34页

作者：林卉 ruiliang pu 梁亮张连蓬江苏师范大学测绘学院江苏徐州221116 School of Geosciences of University of South Florida TampaFlorida 33620 中国矿业大学环境与测绘学院江苏徐州221009

小波变换的图像融合方法已成为现今研究的一个热点。但几乎所有的算法都是在小波域不同尺度上分别对高频系数和低频系数进行融合,没有考虑到它们之间固有的相关性。为此,提出了一种基于方向对比度和区域标准差最大的融合新算法,主要特... 详细信息

小波变换的图像融合方法已成为现今研究的一个热点。但几乎所有的算法都是在小波域不同尺度上分别对高频系数和低频系数进行融合,没有考虑到它们之间固有的相关性。为此,提出了一种基于方向对比度和区域标准差最大的融合新算法,主要特点是在低频部分采用加权因子自适应调节参数融合,以减少边缘模糊,对于高频部分采用方向对比度和局部区域窗口标准差最大值作为高频分量,突出对比度和局域细节,实验表明:融合后影像信息量丰富,地物轮廓清晰可辨,对比度大大加强,空间分辨率得到了提高,最大限度保留了原始影像的光谱信息,是一种可行有效的融合方法。

关键词：小波分解多分辨率分析高频系数低频系数方向对比度区域标准差

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遥感技术在立地类型调查中应用的研究

南京林业大学学报(自然科学版) 1987年第4期 39-47页

作者：浦瑞良南京林业大学林学系

在广西大桂山试验林区,收集地面实况,处理、判读遥感图象,从遥感图象上提取有关地形、植被、土壤及气候等立地信息,并将它们量化及主成分分析;采用排序法划分立地类型,编制航空象片数量化立地指数表及拟合产量预报模型,以评定立地质量,... 详细信息

在广西大桂山试验林区,收集地面实况,处理、判读遥感图象,从遥感图象上提取有关地形、植被、土壤及气候等立地信息,并将它们量化及主成分分析;采用排序法划分立地类型,编制航空象片数量化立地指数表及拟合产量预报模型,以评定立地质量,判读、转绘、编绘立地图。这些图、表的精度能满足生产要求。

关键词：遥感图象数量化方法主成分分析立地类型立地类型图

人类活动对港湾岸线及景观变迁影响的比较研究——以中国象山港与美国坦帕湾为例

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地理学报 2016年第1期71卷 86-103页

作者：刘永超李加林袁麒翔史小丽浦瑞良杨磊卢雪珠宁波大学城市科学系宁波315211 浙江省海洋文化与经济研究中心宁波315211 象山县海洋与渔业局海洋资源管理中心象山315700 宁波大学学报编辑部宁波315211 南佛罗里达大学地理系美国佛罗里达州坦帕33620

利用多时期遥感数据,以10年为时间步长,提取1985-2015年4个时期中国象山港和美国坦帕湾的岸线空间位置、长度和曲折度以及港湾地区景观构型、多样性和破碎度等信息,构建海岸人工化和港湾景观人工干扰指标,探讨人类活动对港湾岸线、景观... 详细信息

利用多时期遥感数据,以10年为时间步长,提取1985-2015年4个时期中国象山港和美国坦帕湾的岸线空间位置、长度和曲折度以及港湾地区景观构型、多样性和破碎度等信息,构建海岸人工化和港湾景观人工干扰指标,探讨人类活动对港湾岸线、景观演变的影响。结果表明:1近30年来,象山港和坦帕湾自然岸线长度不断缩减,人工岸线长度呈先增后稳定的态势。由于两地人类活动方式的差异,象山港局部岸段形态发生剧烈变化,岸线曲折度不断变小;而坦帕湾岸线形态变化较小,岸线曲折度几乎保持不变。2 1985-1995年,象山港海岸人工化不断加强,1995年以后有所减弱,但人类活动的影响范围逐渐变大,几乎遍及整个港湾海岸。1985-2015年,坦帕湾海岸人工化强度虽有加强,但增幅缓慢,海岸人类活动也主要集中于各沿海城市区域。3 1985-2005年,象山港和坦帕湾各人工化强度等级样区景观平均斑块面积总体呈减少趋势,但2005-2015年,象山港各强度样区景观平均斑块面积变化趋势不一,坦帕湾各强度样区变幅则较为平稳。4 1985-2005年,象山港各强度样区景观多样性指数逐渐增大,而坦帕湾变化不一;2005-2015年,两港湾人工化强度由弱至强,景观多样性指数先增后减。5 1985-2005年,象山港和坦帕湾不同人工化强度样区,景观破碎度指数逐渐增大;2005-2015年,两港湾景观破碎度指数呈减小趋势。

关键词：港湾岸线港湾景观变迁人类活动象山港坦帕湾