Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discus...Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discussed in this paper. The integrated management strategy, which includes one ultimate goal, four standards, nine countermeasures, and the concept of 'three Yellow Rivers,' is a contemporary management strategy and represents the vision of the Chinese government and engineers for the sustainable development of the Yellow River basin.展开更多
嘉陵江是长江举足轻重的一条支流,是沿岸地区融入长江经济带的纽带,也是沿岸城市发展和居民生活必不可少的生态资源。因此,嘉陵江生态环境的研究受到了广大学者的关注。文章检索了中国知网(CNKI)数据库和Web of Science(WOS)核心数据库...嘉陵江是长江举足轻重的一条支流,是沿岸地区融入长江经济带的纽带,也是沿岸城市发展和居民生活必不可少的生态资源。因此,嘉陵江生态环境的研究受到了广大学者的关注。文章检索了中国知网(CNKI)数据库和Web of Science(WOS)核心数据库关于嘉陵江生态环境研究的论文,分别得到了347篇和62篇,利用CiteSpace软件进行可视化分析,从发文量、核心作者、主要机构和关键词等方面进行了探讨。结果表明:随着时间发展,发文量总体呈上升趋势,在2021年达到最高;论文发表的主要机构是西华师范大学、西南大学和重庆大学。CNKI数据库(1979—2021)中显示,研究区域主要分为嘉陵江上游、中游和下游地区,研究主题集中在植被的本底调查、水质条件、评价等方面;WOS数据库最近10年(2011—2021)的论文可分为三大类,第一类是对生物(主要是鱼类)的研究,第二类是对污染的研究,第三类是研究方法;大量生态模型以及3S技术被应用在嘉陵江流域的研究中,研究主题主要是风险评价、污染等方面。同时结合2个数据库的结果发现,学者们都重点关注嘉陵江水质条件和评价等方面,并研究了嘉陵江对三峡库区水环境的影响。在当前国家高度重视生态环境保护及重点关注长江经济带发展的大背景下,文章为未来对于嘉陵江流域的研究提出了一些研究方向。展开更多
The Jinsha River Basin is an important basin for hydropower in China and it is also the main runoff and sediment source area for the Yangtze River,which greatly influence the runoff and sediment in the Three Gorges Re...The Jinsha River Basin is an important basin for hydropower in China and it is also the main runoff and sediment source area for the Yangtze River,which greatly influence the runoff and sediment in the Three Gorges Reservoir.This study aims to characterize the spatial distribution,inter-annual variation of runoff and sediment load in the Jinsha River Basin,and to analyze the contribution of rainfall and human activities to the runoff and sediment load changes.The monitoring data on runoff,sediment load and precipitation were collected from 11hydrological stations in the Jinsha River Basin from1966 to 2016.The data observed at the outlet of the basin showed that 71.4%of the runoff is from the upper reaches of the Jinsha River Basin and the Yalong River,while 63.3%of the sediment is from the lower reaches(excluding the Yalong River).There is no significant increase in runoff on temporal scale in the Jinsha River Basin,while it has an abrupt change in runoff in both upstream and midstream in 1985,and an abrupt change in downstream in 1980 and2013.The sediment load demonstrated a significantincreasing trend in the upstream,no significant reducing trend in the midstream,but significant reducing trend in the downstream.The sediment load in upstream showed abrupt change in 1987,in midstream in 1978 and 2014,in downstream in 2012.Rainfall dominated runoff variation,contributing more than 59.0%of the total variation,while human activity,including reservoirs construction,the implementation of soil and water conservation projects,is the major factor to sediment load variation,contributing more than 87.0%of the total variation.展开更多
基金The National Natural Science Foundation of China and the Yellow River Conservancy Commission,Ministry of Water Resources,No.50239040The Science Fund for Creative Research Groups,the National Natural Science Foundation of China,No.50221903
文摘Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable development of the Yellow River basin. Their impacts and management strategies are briefly discussed in this paper. The integrated management strategy, which includes one ultimate goal, four standards, nine countermeasures, and the concept of 'three Yellow Rivers,' is a contemporary management strategy and represents the vision of the Chinese government and engineers for the sustainable development of the Yellow River basin.
文摘嘉陵江是长江举足轻重的一条支流,是沿岸地区融入长江经济带的纽带,也是沿岸城市发展和居民生活必不可少的生态资源。因此,嘉陵江生态环境的研究受到了广大学者的关注。文章检索了中国知网(CNKI)数据库和Web of Science(WOS)核心数据库关于嘉陵江生态环境研究的论文,分别得到了347篇和62篇,利用CiteSpace软件进行可视化分析,从发文量、核心作者、主要机构和关键词等方面进行了探讨。结果表明:随着时间发展,发文量总体呈上升趋势,在2021年达到最高;论文发表的主要机构是西华师范大学、西南大学和重庆大学。CNKI数据库(1979—2021)中显示,研究区域主要分为嘉陵江上游、中游和下游地区,研究主题集中在植被的本底调查、水质条件、评价等方面;WOS数据库最近10年(2011—2021)的论文可分为三大类,第一类是对生物(主要是鱼类)的研究,第二类是对污染的研究,第三类是研究方法;大量生态模型以及3S技术被应用在嘉陵江流域的研究中,研究主题主要是风险评价、污染等方面。同时结合2个数据库的结果发现,学者们都重点关注嘉陵江水质条件和评价等方面,并研究了嘉陵江对三峡库区水环境的影响。在当前国家高度重视生态环境保护及重点关注长江经济带发展的大背景下,文章为未来对于嘉陵江流域的研究提出了一些研究方向。
基金supported by the “National Key R & D Plan Project of China (2018YFD0200502)the 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS (SDS135-1702)
文摘The Jinsha River Basin is an important basin for hydropower in China and it is also the main runoff and sediment source area for the Yangtze River,which greatly influence the runoff and sediment in the Three Gorges Reservoir.This study aims to characterize the spatial distribution,inter-annual variation of runoff and sediment load in the Jinsha River Basin,and to analyze the contribution of rainfall and human activities to the runoff and sediment load changes.The monitoring data on runoff,sediment load and precipitation were collected from 11hydrological stations in the Jinsha River Basin from1966 to 2016.The data observed at the outlet of the basin showed that 71.4%of the runoff is from the upper reaches of the Jinsha River Basin and the Yalong River,while 63.3%of the sediment is from the lower reaches(excluding the Yalong River).There is no significant increase in runoff on temporal scale in the Jinsha River Basin,while it has an abrupt change in runoff in both upstream and midstream in 1985,and an abrupt change in downstream in 1980 and2013.The sediment load demonstrated a significantincreasing trend in the upstream,no significant reducing trend in the midstream,but significant reducing trend in the downstream.The sediment load in upstream showed abrupt change in 1987,in midstream in 1978 and 2014,in downstream in 2012.Rainfall dominated runoff variation,contributing more than 59.0%of the total variation,while human activity,including reservoirs construction,the implementation of soil and water conservation projects,is the major factor to sediment load variation,contributing more than 87.0%of the total variation.
