基于多源遥感数据的区域生态系统服务价值年际动态监测 ——以中原城市群为例   总被引：2，自引：0，他引：2  

王万同  孙汀  王金霞  付强  安传艳 《地理科学》2019,39(4):680-687

通过对多源遥感数据在生态系统服务价值（ESV）遥感模型中的尺度效应分析,选择满足最佳空间分辨率和长时间序列的遥感数据,对中原城市群区域2001~2013年的ESV实现了逐年逐像元水平的动态监测。结果表明：该区应用于遥感模型输入数据的最适空间分辨率为30~1 000 m,相对于30 m尺度,其他尺度估算结果的相对偏差均小于0.4%;结合年际动态监测的需求,选择了MODIS数据产品（空间分辨率500 m,时间尺度1 a）作为遥感模型的最佳数据源;研究区ESV总值在研究期内整体上呈显著增长趋势,增速约为8.6亿元/a,但在持续增长过程中经历了3次波动,且表现得越来越剧烈;在空间上,研究区ESV多年均值呈现出明显的不均衡性,表现为从西南向东部递减的趋势。研究表明此方法简单易行,初步实现了区域ESV年际动态监测遥感模型的准业务化运行。  相似文献   

生态系统服务弹性敏感性系数的合理性与决策属性探讨   总被引：1，自引：0，他引：1  

丁振民  姚顺波 《地理科学》2019,39(10):1672-1679

在经济学弹性基本概念的基础之上,采用数学推导的方式重点探讨3种生态系统服务弹性敏感性评价模型的合理性与决策属性。研究结果表明：① Kreuter敏感性系数大小始终为0~1;在极限形式下,生态系统服务价值变率函数与Kreuter敏感性系数具有相同的数学表达式与值域;所以这两种敏感性评价模型把1作为是否敏感的评价标准并不合适。生态系统服务交叉敏感性系数不符合一般意义上的“交叉敏感性”的概念,并且其计算公式不符合弹性的基本定义。② 弹性敏感性计算方式适用于随机变量间的研究,不适用于具有确定性关系的变量;生态系统服务框架下的3种弹性敏感性系数均建立在具有确定性关系的生态系统服务价值计算公式的基础之上,导致其敏感性计算结果缺乏深层次的决策属性。  相似文献   

Spatiotemporal heterogeneity and influencing mechanism of ecosystem services in the Pearl River Delta from the perspective of LUCC     

Zhou  Rubo  Lin  Meizhen  Gong  Jianzhou  Wu  Zhuo 《地理学报(英文版)》2019,29(5):831-845

Journal of Geographical Sciences - Land use/land cover change (LUCC) has considerable impact on ecosystem services. It is essential to quantify the spatiotemporal heterogeneity of ecosystem...  相似文献   

Net Horizontal Payments for Ecosystem Services: An Application in the Beijing-Tianjin-Hebei Region of China     

LIN Yongsheng  GUO Zhixin  ZHENG Yaomin  ZHANG Lirong  HUANG Huabing 《资源与生态学报(英文版)》2019,10(1):63-68

Payments for ecosystem services (PES) are one kind of important tool for environmental protection, and have been widely studied by international scholars and conservationists. Based various definitions of PES from recent articles, we have outlined four principles for PES: parity, measurability, additionality and conditionality, and then have used these principles to develop a formula to calculate a standard for PES. Finding a way to use PES to achieve a win-win relationship between economic growth and environmental protection in the Beijing-Tianjin-Hebei Region (BTHR) is a key task for Chinese government. Synergetic development of BTHR has become a national strategy, like The Belt and Road Initiative. This article employed the formula we developed to calculate the net horizontal PES amounts that each provincial government within BTHR should pay. Our findings show that Beijing should have paid 10.44×10⁹ Yuan (0.4% of Beijing’s GRP) and Tianjin 16.56×10⁹ Yuan (0.93% of Tianjin’s GRP) to Hebei in 2016.  相似文献   

Assessment of Desert Ecological Assets and Countermeasures for Ecological Compensation     

BAO Yingshuang  CHENG Leilei  LU Qi 《资源与生态学报(英文版)》2019,10(1):56-62

Can deserts be transformed into resources, into assets, and further into cash? It is necessary to scientifically assess desert ecological assets and incorporate them into the national economic accounting system and the current evaluation system for socio-economic development. This study will provide a scientific basis and robust data for establishing a target system that is compatible with both ecological civilization and an associated reward and punishment mechanism, as well as for designing and implementing effective compensation policies for desert ecosystems. This paper first defines desert ecological assets, and then develops a framework for assessing them based on the evaluation of desert ecological resources and desert ecosystem services. This framework paves the foundation for quantitatively assessing desert ecological assets and preparing balance sheets of desert ecological assets. Finally, this paper analyzes current policies relating to desert ecological compensation, discusses how to design compensation policies based on assessment of desert ecological assets, and puts forward suggestions for improving current policies.  相似文献   

Consumption of Ecosystem Services in Laos     

LIANG Yihang  ZHEN Lin  JIA Mengmeng  HU Yunfeng  ZHANG Changshun  LUO Qi 《资源与生态学报(英文版)》2019,10(6):641-648

The exponential increase of ecosystem utilization has instigated a serious conflict between ecosystem services and residents’ needs. The Belt and Road Initiative has greatly influenced Laotian production and living, and the scientific assessment of the consumption of ecosystem services in Laos is important for exploring residents’ influence on the ecosystem. Based on data for the Laotian consumption of agricultural products, fruits and livestock products during 1961-2013, normalized by either harvest index or feed conversion ratio, this study draws three main conclusions. 1) Ecosystem service consumption in Laos is centered on the consumption of farmland, forestry and grassland ecosystem services, which account for over 80%, over 10% and under 2%, showing downward, upward and constant trends, respectively. The consumption of these ecosystem services shows a trend of increasing first, then fluctuating, and finally increasing. 2) The consumption of ecosystem services in Laos was characterized by the mode of “dominance of consumption of the farmland ecosystem services” from 1961 to 2008, and the mode of “balanced development of consumption of farmland, forest and grassland ecosystem services” from 2008 to 2013, with a trend of transformation from the former into the latter. 3) The formation and change in the consumption mode of Laotian ecosystem services have been affected by both supply and trade. Laos developed agriculture mainly during the period from 1961 to 2008, forming the mode of “dominance of consumption of the farmland ecosystem services”. This development benefited from the enriched varieties of imports as well as the increased value of trade and import volume. However, the consumption of ecosystem services in Laos after 2008 changed from the mode of “dominance of consumption of the farmland ecosystem services” to one of “balanced development of consumption of farmland, forest and grassland ecosystem services”. This study provides an empirical reference for research on the consumption of ecosystem services.  相似文献   

辽宁省海洋服务新业态培育与法律保障研究   总被引：1，自引：0，他引：1       下载免费PDF全文

刘洋  裴兆斌  王悦 《海洋开发与管理》2019,36(3):28-33

海洋服务业已成为海洋经济发展的重要引擎,"十三五"时期是辽宁省海洋经济加快转型升级的关键期,要求培育新动能、发展新模式。因此,培育海洋服务新业态对辽宁省海洋经济发展具有重要意义。文章针对辽宁海洋服务业发展滞后,规模偏小、区域发展不平衡,同质化严重、科技含量低,层次相对低下、与其他产业融合不足,资源整合较差等问题,提出培育海洋服务新业态重要路径为:积极发展四大产业,提高经济规模总量;优化产业区域布局,形成错位发展;提高科技含量,提升海洋服务业层次;促进海洋服务业与其他行业融合协调,提升资源整合度。法律保障措施为:完善法规体系、严格项目审批、提高执法水平、健全应急管理。  相似文献   

检索词优化与空间自适应的深网POI获取方法研究     

周国新  吴永静  崔腾腾  杨辉山  罗安 《测绘科学》2019,44(7):135-140

针对检索词库构建困难、数据请求量受限制等相关问题,该文提出一种基于独立覆盖率排序和空间自适应剖分的深网POI信息搜索方法,通过候选检索词初步构建、贪婪式探测搜索、检索词优化降维、空间自适应剖分爬行等主要流程,利用逐步逼近POI搜索的最大覆盖最优解,实现对深网POI信息的全量获取,大幅度提高深网POI数据的召回率与采集效率,该方法对于丰富地理信息资源、提升空间信息服务与内容管理能力具有重要意义。  相似文献   

动态多地图服务负载平衡设计及实现     

邓晶  曾铭  章奇志 《地理空间信息》2007,5(6):59-61

文章针对在于WebGIS应用中,服务器需要海量生成地图服务时,服务器常处于瘫痪状态的问题,提出建立基于ArcGIS Server的多地图服务对象的管理方案,客户端发出新的地图请求时,需通过多地图服务管理对象检验,由地图服务管理对象控制向ArcGIS Server发出的请求,从而解决服务器经常处于瘫痪的问题。基于此研究,作者设计并实现了B/S模式的以工代赈信息管理系统,在实际应用中取得了较好的效果。  相似文献   

探讨建立基于Web的中国南极环境评估系统          下载免费PDF全文

张洁  凌晓良  汪大立  陈丹红 《极地研究》2006,18(4):273-281

本文根据“马德里协议”与ATCM通过的其他相关议案对南极环境管理、监测和环境影响评估的要求,在系统研究澳大利亚南极局自2003年起运行的南极环境评估系统[1]的基础上,探讨如何建立中国南极环境评估系统(Ch inese Antarctic Environm entEvaluation System,CAEES)。该系统在设计中将结合中国南极考察活动的特点、规模、发展战略以及环境保护要求,涵盖一系列静态或动态的南极环境要素数据,同时综合相关学科专家的评估意见。该系统拟采取基于W eb的数据库技术来实现南极环境的实时动态评估以及中国南极环境状况报告(Ch inese Ant-arctic Environm ental Report,CAER)的自动生成。  相似文献