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Assessment of ecological civilization construction from the perspective of environment and health in china

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Eco-Environment & Health 2024年第3期3卷 281-289页

作者： Ya'nan Guo Linsheng Yang Li Wang Hairong Li quansheng ge Key Laboratory of Land surface Pattern and simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of resources and Environment University of Chinese Academy of SciencesBeijing 100049China

This study innovatively evaluated ecological civilization in china from the perspective of environment and health.A Composite Environmental Health Index(CEHI)was constructed based on the Driving force-Pressure-state-Impact-Response(DPsIR)and Coupling Coordination Degree(CCD)*** showed that significant and sustained improvements were observed in the ecological environment after ecological civilization,while economic development continued to progress at a steady ***,the advancement in population health(impact subsystem),exhibited comparatively modest progress,potentially linked to issues such as demographic aging and the enduring consequences of past exposure to environmental *** the provincial level,the regional development was *** CEHI performance was highest in the eastern regions,followed by the central regions,with the western regions showing the least ***,Guangdong,Jiangsu,shanghai,and Zhejiang emerged as top performers with higher CEHI scores,which can be attributed to their favorable geographical positioning and the response ***,northeastern regions(Heilongjiang,Jilin,and Liaoning)and northwestern regions(shaanxi,Gansu,Ningxia,and Qinghai)experienced limited advancements in post-ecological civilization *** these underperforming regions,there is a pressing need to intensify efforts aimed at enhancing their response *** summary,china's pursuit of ecological civilization has yielded significant successes,potentially offering valuable insights for other nations striving for sustainable *** ecological civilization model's integration of ecological environmental protection into economic,political,cultural,and social constructs may serve as a meaningful reference for the sustainable development of other countries.

关键词： Ecological civilization Environment and health Driving force-Pressure-state-Impact-Response Coupling Coordination Degree Model

The roles of a decision support system in applying forest ecosystem management in Northeast china

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science china(Technological sciences) 2006年第z1期49卷 9-18页

作者： dai Limin, ZHENG Bofu, Guofan shao & ZHOU Li state Key Lab of systems Ecology, research Center for Eco-Environmental sciences, chinese academy of sciences, beijing 100085, china institute of Applied Ecology, chinese academy of sciences, shenyang 110016, china Department of Forestry and natural resources, Purdue University, West Lafayette, IN 47907, UsA Graduate University of chinese academy of sciences, beijing 100101, china 1. state Key Lab of systems Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China2. Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China3. Department of Forestry and Natural Resources Purdue University West Lafayette IN 47907 USA4. Graduate University of Chinese Academy of Sciences Beijing 100101 China

Forest ecosystems provide a variety of services and forest ecosystem management (FEM) is an effective approach to maximize the services. Because of the complexity of forest ecosystems, the applications of FEM can be facilitated with decision support systems (Dss) that recognize and incorporate ecological and socio-economic variables. With the rapid development of computation and information technologies, Dss have been advanced in many ways. Traditional forest management within a forestry unit in china is planned on a yearly basis. The planning itself remains primarily a verbal concept as there are no quantitative decision-support tools available to translate the concept into forest management actions. For the purposes of FEM at the management level, a forest management DFF, FOREsTAR, has been developed under a framework of geographic information system (GIs) and forest models. The paper explained the intelligent modeling mechanisms and demonstrated how the applications of FEM can be strengthened with the applications of FOREsTAR.

关键词： forest functions, forested landscapes, forest services, forest models, geographic information systems.

Farming and forestry land use changes in china and their driving forces from 1900 to 1980

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science china Earth sciences 2005年第10期48卷 1747-1757页

作者： ge quansheng dai junhu institute of geographic sciences and natural resources research Chinese Academy of Sciences Beijing 100101 China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China

关键词： land use change, cultivated land, forestry land, driving factors, 20th century.

Digitally determining forest inventory units with an ecological classification system

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science china(Technological sciences) 2006年第z1期49卷 118-127页

作者： TANG Una, WANG Qingli, Guofan shao, dai Limin, WANG shunzhong, LI Xiufen & XU Dong institute of Applied Ecology, chinese academy of sciences, shenyang 110016, china Graduate University of chinese academy of sciences, beijing 100101, china Department of Forestry and natural resources, Purdue University, West Lafayette, IN 47907, UsA 1. institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China 2. Graduate University of chinese academy of sciences Beijing 100101 China 3. Department of Forestry and natural resources Purdue University West Lafayette IN 47907 USA

Management-level forest resource data in china were obtained with a combination of two forest inventories. However, inconsistencies in the spatial attributes of forest data vary between the two inventory types and between two inventories of the same type. The inconsistencies make it inconvenient for long-term forest management planning with digital technologies. Ecological Land Types (ELTs) and Ecological Land Type Phases (ELTPs) have been mapped in selected forestry regions in northeast china, where important forest industries are located. The boundaries of ELTs are determined by geomorphic conditions, which are quantified by Digital Elevation Models (DEM); ELTPs are classified by overlaying ELTs with forest vegetation data layers that are obtained with both remotely sensed and ground data. The ELTPs represent the divisions of land in terms of both natural and human-induced forest conditions, and therefore they are reliable units for forest inventories and management. This paper introduces a case study for digitally determining forest inventory units in Benxi City, Liaoning Province, northeast china. The general objective of the study was to explain how a compatible forest inventory system should be designed and why the compatible forest inventory system was significant to digital forestry in china.

关键词： forest inventory, ecological classification, ELT mapping, ELTP mapping, geographic information systems, forest management.

The spatiotemporal characteristics of spring phenophase changes of Fraxinus chinensis in china from 1952 to 2007

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science china Earth sciences 2012年第6期55卷 991-1000页

作者： WANG HuanJiong dai junhu ge quansheng institute of geographic sciences and natural resources research Chinese Academy of Sciences Beijing 100101 China Graduate school of chinese academy of sciences Beijing 100049 China

We selected widely distributed and well observed plant species Fraxinus chinensis to study the formation mechanism of geographical distribution of the plant phenophase changes and revealed their spatiotemporal dynamics in china. Based on the first leaf date （FLD） data at 12.sites derived from chinese Phenological Observation Network （CPON） and related meteoro- logical data, we developed and validated the process-based model of FLD for Fraxinus chinensis. After reconstructing data series of FLD for Fraxinus chinensis over the study area from 1952 to 2007, we analyzed different spatiotemporal patterns of phenophase changes of this species. The results suggested that the process-based model was able to simulate the FLD accu- rately for Fraxinus chinensis on large spatial and temporal scales, because of the consideration of different budding rate re- sponded to the air temperatures during the dormancy and the quiescence in accordance with the physiological mechanism of plants. The geographical distribution of the spring phenology in temperate regions was determined by the spatial pattern of daily average air temperature. The changes of FLD for Fraxinus chinensis revealed significant phenological advances in most areas. However, it showed delayed trends in a few sites. The overall average change trend was -1 .l days/decade. This result was consistent with the advanced trend in other regions of the North Hemisphere. The changes of FLD showed a noticeable regional variation with clearer advance in the north than in the south. The FLD in northern china showed an average ad- vance as high as -2.0 days/decade （P〈0.01）. And the advance in northeastern and northwestern china was respectively -1.5 and -1.4 days/decade （P〈0.01）. Furthermore, eastern and central regions showed a minor trend, which was -1.0 days/decade （P〈0.05）. The smallest and non-significant advance appeared in southwestern and southern china.

关键词： phenophases phenological model first leaf Fraxinus chinensis

spatiotemporal differentiation of changes in wheat phenology in china under climate change from 1981 to 2010

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science china Earth sciences 2018年第8期61卷 1088-1097页

作者： Yujie LIU Qiaomin CHEN quansheng ge junhu dai Key Laboratory of Land surface Pattern and simulation Institute of Geographic Sciences' and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China University of chinese academy of sciences Beijing 100049 China

Phenology is a reliable biological indicator for reflecting climate change. An examination of changes in crop phenology and the mechanisms driving them is critical for guiding regional agricultural activities in attempts to adapt to climate change. Due to a lack of records based on continuous long-term observation, studies on changes in multiple consecutive phenological stages throughout a whole growing season on a national scale are rarely found, especially with regard to the spatiotemporal differentiation of phenological changes. Using a long-term dataset(1981-2010) of wheat phenology collected from 48 agro-meteorological stations in china, we qualified the spatiotemporal changes of 10 phenological stages as well as the length of wheat growth phases. Results showed that climate and wheat phenology changed significantly during the growing seasons from 1981 to 2010. On average, on a national scale, dates of sowing(0.19 d a-1), emergence(0.06 d a-1), trefoil(0.05 d a-1), and milk ripe(0.06 d a-1) showed a delaying trend, whereas dates of tillering(-0.02 d a-1), jointing(-0.15 d a-1),booting(-0.21 d a-1), heading(-0.17 d a-1), anthesis(-0.19 d a-1), and maturity(-0.10 d a-1) showed an advancing ***, the vegetative growth phase and growing season were shortened by 0.23 and 0.29 d a-1, respectively, whereas the reproductive growth phase was lengthened by 0.06 d a-1. Trends in dates of phenological stages or length of growing phases varied across wheat-planting regions. Moreover, spatiotemporal differentiation of sensitivity in growing season length(GsL) to variations in climatic factors during the growing season between spring and winter wheat were remarkable. The GsL of spring(winter) wheat decreased(increased) with an increase in average temperature during the growing season. In all wheat-planting regions, the GsL increased with the increasing of total precipitation and sunshine duration during the growing season. In particular, the sensitivity of GsL to

关键词： Wheat phenology spatiotemporal differentiation Climate change china

GIs-based analysis of forest degradations in Baihe Forestry Bureau,northeast china

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science china(Technological sciences) 2006年第z1期49卷 167-176页

作者： ZHOU Li, dai Limin , Guofan shao, XU Dong, WANG Hui & BAI Jianwei institute of Applied Ecology, chinese academy of sciences, shenyang 110016, china Graduate University of chinese academy of sciences, beijing 100101, china Department of Forestry and natural resources, Purdue University, West Lafayette, IN 47907, UsA Department of City Development, Jinan University, Jinan 250002, china academy of Forest Inventory and Planning, state Forestry Administration, beijing 100714, china 1. institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China 2. Graduate University of chinese academy of sciences Beijing 100101 China 3. Department of Forestry and natural resources Purdue University West Lafayette IN 47907 USA 4. Department of City Development Jinan University Jinan 250002 China 5. academy of Forest Inventory and Planning State Forestry Administration Beijing 100714 China

Forests in the Changbai Mountains are important timber sources for economic development of the society and provide ecological services in northeast china. In order to strengthen forest resource management, this paper analyzed management-induced changes in forest structure, tree species composition and forest landscape pattern from 1987 to 2000 for Baihe Forestry Bureau in Jilin Province based on digitized forest parcel maps and forest survey data. The results suggested that the area of Mature, High-stocking, and Close-Canopy Forests decreased by 31.4%, 55.9% and 10.7% respectively; volume of Mixed Forest, the native forest vegetation type, decreased by 17.8%;the number of patches increased tremendously but the mean patch density decreased sharply for Mature, High-stocking, Close-Canopy, and Mixed Forests. All the changes in forest structure, species composition, and landscape pattern indicated severe degradations going on with the forests in Baihe Forestry Bureau. Because of the effect of degradation to forest services, restoring forest resources and protecting biodiversity has become urgently important. The strategies of sustainable forest management need to be worked out and implemented.

关键词： geographic information system, forest management, Changbai Mountains, forest change, forest decline.

spatiotemporal dynamics of reclamation and cultivation and its driving factors in parts of china during the last three centuries

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Progress in natural science:Materials International 2004年第7期 53-61+97页

作者： ge quansheng 1, dai junhu 1*, HE Fanneng 1, ZHENG Jingyun 1, MAN Zhimin 2 and ZHAO Yun 2(1. institute of geographic science and natural resources research, chinese academy of sciences, beijing 100101, china 2. Center for Historical geographic studies, Fudan University, shanghai 200433, china) institute of geographic science and natural resources research Chinese Academy of Sciences Beijing 100101 China Center for Historical geographic studies Fudan University Shanghai 200433 China

Different from other similar studies, in this paper, most of the data were excerpted from historical archives and documents, and were used to study the spatiotemporal dynamics of cultivated land resources in china during the last 300 years. It is clear that these data may help reveal land use change dynamics and its regional differences, but they may be problematic due to the constraints of the original data in the Ming Dynasty, Conversion of Land Area for the purpose of collecting land taxes, and the deliberate or inadvertent omission of cultivated land area during land surveys, therefore, such data were adjusted to our need. In processing the data, we made great efforts to analyze the historical context of their sources and reduced the possible errors. The results show that the cultivated land area increased most quickly in the early Qing Dynasty, and slowed down after the middle Qing Dynasty, and then was stable in the late Qing Dynasty until 1949, and has been decreasing since then. It is also found that the cultivated land use varied greatly in different regions. The east of the country was cultivated much more heavily than the west, but in some western provinces cultivated land area increased more quickly. It is considered that the driving factors of such cultivated land area change include the increase of the population, the political issues, and the impacts of wars. natural environmental factors and the introduction of new crops might also have affected the cultivated land use change in the past 300 years.

关键词： land use china last three centuries.

Land use changes and their relations with carbon cycles over the past 300 a in china

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science china Earth sciences 2008年第6期51卷 871-884页

作者： ge quansheng dai junhu HE FanNeng PAN Yuan WANG MengMai institute of geographic sciences and natural resources research Beijing 100101China Graduate University of the chinese academy of sciences Beijing 100049China

Land use and land cover in china have changed greatly during the past 300 a, indicated by the rapid abrupt decrease of forest land area and the rapid increase of cropland area, which can affect terrestrial carbon cycle greatly. The first-hand materials are used to analyze main characteristics for land use and land cover changes in china during the study period. The following conclusions can be drawn from this study. The cropland area in china kept increasing from 60.78×106 hm2 in 1661 to 96.09×106 hm2 in 1998. Correspondingly, the forest land area decreased from 248.13×106 hm2 in 1700 to 109.01×106 hm2 in 1949. Affected by such changes, the terrestrial ecosystem carbon storage decreased in the mean time. Car-bon lost from land use and land cover changes mainly consist of the loss from vegetation biomass and soil. In the past 300 a, about 3.70 PgC was lost from vegetation biomass, and emissions from soil ranged from 0.80 to 5.84 PgC. The moderate evaluation of soil losses was 2.48 PgC. The total loss from vegetation and soil was between 4.50 and 9.54 PgC. The moderate and optimum evaluation was 6.18 PgC. such carbon losses distribution varied spatially from region to region. Carbon lost more significantly in Northeast china and southwest china than in other regions, because losses of forest land in these two regions were far greater than in the other regions during the past 300 a. And losses of carbon in the other regions were also definite, such as Inner Mongolia, the western part of south china, the Xinjiang Uygur Autonomous Region, and the Qinghai-Tibet Plateau. But the carbon lost very little from the traditional agricultural regions in china, such as North china and East china. studies on the relationship between land use and land cover change and carbon cycle in china show that the land use activities, especially those related to agriculture and forest management, began to affect terrestrial carbon storage positively in recent years.

关键词： past 300 a land use and land cover change carbon cycle