期刊：
ISPRS International Journal of Geo-Information,2021年10(7):466- ISSN：2220-9964
通讯作者：
Nan Yang
作者机构：
[Zhao, Yunlin; Xu, Zhenggang; Mo, Wenbo] Cent South Univ Forestry & Technol, Key Lab Forestry Remote Sensing Based Big Data &, Changsha 410004, Peoples R China.;[Mo, Wenbo] Hunan City Univ Design & Res Inst Co LTD, Changsha 410028, Peoples R China.;[Mo, Wenbo] Hunan Urban & Rural Ecol Planning & Restorat Engn, Changsha 410028, Peoples R China.;[Yang, Nan] Hunan City Univ, Coll Architecture & Urban Planning, Lab Key Technol Digital Urban Rural Spatial Plann, Yiyang 413000, Peoples R China.;[Zhao, Weiping] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.
通讯机构：
[Nan Yang] L;Laboratory of Key Technologies of Digital Urban-Rural Spatial Planning of Hunan Province, College of Architecture & Urban Planning, Hunan City University, Yiyang 413000, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
water yield services;InVEST;land use;land cover;Dongjiang Lake Basin
摘要：
Spatial and quantitative assessments of water yield services in watershed ecosystems are necessary for water resource management and improved water ecological protection. In this study, we used the InVEST model to estimate regional water yield in the Dongjiang Lake Basin in China. Moreover, we designed six scenarios to explore the impacts of climate and land use/land cover (LULC) changes on regional water yield and quantitatively determined the dominant mechanisms of water yield services. The results are expected to provide an important theoretical reference for future spatial planning and improvements of ecological service functions at the water source site. We found that (1) under the time series analysis, the water yield changes of the Dongjiang Lake Basin showed an initial decrease followed by an increase. Spatially, water yield also decreased from the lake area to the surrounding region. (2) Climate change exerted a more significant impact on water yield changes, contributing more than 98.26% to the water yield variability in the basin. In contrast, LULC had a much smaller influence, contributing only 1.74 %. (3) The spatial distribution pattern of water yield services in the watershed was more vulnerable to LULC changes. In particular, the expansion of built-up land is expected to increase the depth of regional water yield and alter its distribution, but it also increases the risk of waterlogging. Therefore, future development in the basin must consider the protection of ecological spaces and maintain the stability of the regional water yield function.
期刊：
International Journal of Environmental Engineering,2021年11(2):144-154https://doi.org/10.1504/IJEE.2021.118461 ISSN：1756-8463
作者机构：
1. College of Urban and Environmental Sciences, Northwest University, Xi'an, Shaanxi 710127, China;School of Architecture and Urban Planning, Hunan City University, Yiyang, Hunan 413000, China
关键词：
geographic information system;GIS;land planning;spatial coincidence;ecological sensitivity.
摘要：
Population growth and limited livable lands lead to the contradiction between man and land. Land use planning and design can alleviate the contradiction to a great extent. This paper briefly introduced geographic information system (GIS) technology. It then analysed the local land ecological sensitivity and the spatial coincidence of land use planning and design of Anxiang County, Changde, Hunan using GIS technology, and the data collected from Land and Resources Bureau. The results showed that the local land ecological sensitivity of Anxiang County was slightly high; therefore, it is necessary to pay attention to the local environmental protection when carrying out land planning. The index measurement and the distribution of spatial coincidence both demonstrated that Anxiang County protected the farmland well in the execution of land planning in 2019. Still, the excessive development of transportation and water conservancy invaded other building lands. Several improvement suggestions were put forward against the analysis results.
作者机构：
[Chen, Xinsheng; Geng, Mingming; Deng, Zhengmiao; Zou, Yeai; Li, Feng; Wang, Kelin; Xie, Yonghong] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.;[Chen, Xinsheng; Geng, Mingming; Deng, Zhengmiao; Zou, Yeai; Li, Feng; Xie, Yonghong] Chinese Acad Sci, Inst Subtrop Agr, Dongting Lake Stn Wetland Ecosyst Res, Changsha 410125, Hunan, Peoples R China.;[Geng, Mingming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;[Yang, Nan] Hunan City Univ, Coll Architecture & Urban Planning, Key Lab Key Technol Digital Urban Rural Spatial P, Yiyang 413000, Hunan, Peoples R China.;[Qian, Zhan] Hunan Hydro & Power Design Inst, Dongting Lake Res Ctr, Changsha 410007, Hunan, Peoples R China.
通讯机构：
[Feng Li] K;Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, Hunan, China<&wdkj&>Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, Hunan, China
作者机构：
[Wang, Qing] Beijing Radiat Ctr, Key Lab Beam Technol, Minist Educ, 12 Xueyuannan Rd, Beijing 100875, Peoples R China.;[Li, Yan] Liaoning Normal Univ, Sch Life Sci, South Liushu St 1, Dalian 116081, Liaoning, Peoples R China.;[Ferguson, David K.] Univ Vienna, Dept Palaeontol, Althanstr 14, A-1090 Vienna, Austria.;[Mo, Wen-Bo] Cent South Univ Forestry Sci & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Yang, Nan] Hunan City Univ, Coll Architecture & Urban Planning, Lab Key Technol Digital Urban Rural Spatial Plann, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Wang, Q.] T;[Li, Y.] S;School of Life Science, South Liushu Street 1, China;The Key Laboratory of Beam Technology of Ministry of Education, 12 Xueyuannan Road, China
关键词：
Asian Monsoon;Climate evolution;Climate gradients;Co-existence approach;The Tibetan Plateau
摘要：
Many studies have suggested that the climate diversified in China during the Miocene, with the emergence of an arid region in north-western China, as the Asian Monsoon intensified with the rapid uplift of the Tibetan Plateau in the late Miocene. However, this opinion is not upheld by all geoscientists. Here Miocene fossil plant assemblages from 75 broadly scattered sites across China were investigated with the Co-existence Approach (CA) to exhibit trends in temperature and precipitation in time and space. Modern distributions and recorded climate data from China regarding the nearest living relatives of the fossil plant taxa were employed to pin-point the climatic parameters in which a maximum number of taxa could coexist. Evolution and climatic trends are presented in maps of China from the early, middle to late Miocene. These maps illustrate that the ranges of the temperature and precipitation in the Miocene were similar to or just a little larger than those in the Eocene but much smaller than those of the present. The whole of China still had low latitudinal climate gradients and was characterized by a subtropical climate without any arid region. The changing contours of temperature and precipitation may be ascribed to the initial stage of the Asian Monsoon. There was no abrupt elevation of the Tibetan Plateau, nor had the Plateau attained its present altitude or orography in the Miocene.
摘要：
In order to overcome the low accuracy of the traditional spatial balance evaluation method for land use, this paper constructs a spatial balance evaluation model for land use based on regional collaborative remote sensing observation. The land use information is collected by regional collaborative remote sensing observation system, and the evaluation index system and balance degree evaluation model are constructed by synthesising the information. The supply capacity index and the spatial development intensity index in the evaluation model are calculated by the arithmetic average method and the geometric average method. The ratio between them is defined as the output of the model. The experimental results show that the accuracy of this method is always over 95%, and the evaluation time is less than 2.1 s, which can realise the rapid and accurate evaluation of the spatial balance of land use.
