Design of Campus Wetland Landscapes: A Case Study of the Bailuxi Wetland of University of Sanya in Sanya,Hainan, China

In this paper, the landscape design of the Bailuxi Wetland in University of Sanya was studied by using the research method of survey—analysis—design. The questionnaire survey, field observation and landscape pattern analysis were used to analyze the landscape pattern of the Bailuxi Wetland as well as the characteristics and problems of the six subsystems of green space, activity, road, animal, plant, and sound. Then the overall structure and function design of the Bailuxi Wetland landscape, the optimization adjustment of the landscape pattern, the optimization design of the subsystem, and the relationship design between human and the animal, plant, and sound systems were proposed. This study is dedicated to providing effective advice on the planning and design of campus wetland landscapes, with a view to providing examples for the planning and design of campus wetland landscapes. The research indicates that:(1) Scientific and rational spatial structure and functional layout planning are prerequisites for the sustainable development of wetland landscapes;(2) the balanced development of subsystems in the campus wetland system is a necessary condition for maintaining the rationality of the campus landscape pattern;(3) the degree of harmony between humans and animals, plants, and sounds affects the ecological sustainability of campus wetland landscapes.     

Problems in the Development of Small Cities and Towns in West China and Countermeasures: A Case Study of Luzhou City,Sichuan Province

New urbanization targets at coordinated urban-rural development, and construction of ecological and livable environment, it is the foundation for breaking urban-rural dual structure of China and promoting the agricultural modernization. Small cities and towns as carriers of new urbanization have already become important paths of realizing new urbanization and solving problems concerning 300 million peasants in China. Considering the requirements of new urbanization, this paper took Luzhou City in Sichuan Province for example to explore development path suitable for small cities and towns in west China and gave pertinent suggestions.     

Research on Tourism Agglomeration: A Case Study of Hainan Province,China

On the basis of analyzing yearly data and spatial relationships between tourism spots, star hotels and travel agencies of Hainan Province, and comparing all the methods of measuring industrial spatial agglomeration, this paper chose Hefindahl index, Location Quotient, nearest neighbor index, spatial connection index and geographic concentration index to measure Hainan tourism agglomeration. By applying these methods, total tourism agglomeration, agglomeration of tourism factors and regional agglomeration differences were studied. The results showed that the overall agglomeration increases as time flows, and the eastern part is the most agglomerated, the west takes the second, with the middle ranking the least. The large-scale agglomeration regions are Sanya and Haikou. The influencing factors of Hainan tourism spatial agglomeration were concluded as tourism resource endowment, industrial attributes, geographic conditions, governmental policies and the overall economic development level, etc. In addition, the paper proposed tourism spatial agglomeration modes of Hainan Province at various spatial scales.     

土壤有机碳储量估算结果精度分析——以广东省为例

土壤有机碳库是陆地碳库的重要组成部分,其变化对气候变化及全球碳循环有着重要的作用,而对土壤有机碳储量(SOCS)的精确估算是研究的基础。以广东省为例,以常规土壤剖面及土壤类型图数据估算表层SOCS,以相同方法,利用基于大量土壤采样数据制作的有机质含量图数据估算表层SOCS的范围,分析常规数据估算结果的精度。结果显示,采用土壤剖面数据计算出的SOCS要比采用有机质含量图算出的SOCS均值高出24.81%,达1.360×10⁸ t,广东省典型的赤红壤和水稻土分别高0.739×10⁸ t、0.469×10⁸ t。可以推断,利用有限样本量的土壤剖面数据估算结果可能会高估SOCS的真实储量。不同数据源有各自的局限和优势,利用土壤有机质含量图来估算SOCS,不仅为SOCS估算方法进行了有力的补充,同时为SOCS真实值提供了必要的参考。     

Ecological Landscape Design of Urban Wetland Park: A Case Study of the Aixi Lake Wetland Park in Nanchang City

Wetland as one of the natural landscapes with the richest biodiversity and most closely related to our life is widely distributed all around the world, and capable of storing fl ood, preventing drought, purifying environment, adjusting climate, controlling pollution, maintaining regional ecological balance. Nanchang is famous for City in the Lake and Lake in the City, and this paper begins with wetland resources in Nanchang City, analyzes problems of local wetlands. Taking the design of the Aixi Lake Wetland Park for example, this paper proposes suggestions for the renovation and improvement by analyzing the problems of its current landscape pattern, and specifi c problems in the landscape design of wetland park, and summarizes the ecological model fi t for the landscape design of urban wetland park in Nanchang City. The research contributes to the ecological restoration and conservation of wetland resources in Nanchang.     

Problems Facing the Implementation of the Rural Revitalization Strategy: A Case Study of Luocun Town of Shandong Province

According to the requirements of the national rural revitalization strategy and the construction of new countryside, the current situation of rural construction in Luocun Town, Zichuan District, Zibo City was taken as the entry point, the problems occurred in the local revitalization and construction were analyzed, and corresponding improvement measures were put forward.     

山东省高速公路绿化植物配置研究

以《公路环境保护设计规范》等行业规范为设计依据,根据山东省植物分区和山东省林业区划将山东省高速公路绿化植物资源划分为四个区域,通过对区域内主要高速公路绿化的植物和配置形式进行调查、对比、分析、评价,总结出目前山东省内不同立地条件和不同区域内,高速公路绿化的主要植物品种及较好的配置形式。本文最后对我省目前高速公路绿化在植物选择和配置形式方面提出部分问题和建议。     

Riverfront Landscape Design of Wojiang River in Longnan County,Jiangxi Province

Taking riverfront landscape construction of Wojiang River and its artery landscape engineering for example, the design follows the principle of humanistic, ecological, landscape, sharable and open, respects and understands intentions of planning in the early stage, focuses on the extraction of historical elements, explores local cultural characteristics to integrate the features into riverfront landscape construction and create urban landscapes with local cultural connotations.     

Social Network Analysis of Actors in Rural Development: A Case Study of Yanhe Village,Hubei Province,China

Agricultural production, rural areas, and farmers are three key aspects of agriculture related to sustainable economic and social development in China. Rural development is a process of multi‐participation, which involves actors from governments, village committees, villagers, rural economic cooperatives, enterprises, financing institutions, and non‐government organizations (NGOs). Based on social network analysis (SNA), this article analyzes the social network structures and characteristics of various actors in different stages of rural development in Yanhe village, Hubei Province, China. The results show that both the village committee and villagers have great influence on rural development; NGOs are the leaders of rural environmental improvement; village cooperatives are the promoters of rural economic development; enterprises are the accelerators of rural construction and development. The study outlines the rural development model in Yanhe village where the village committee is the leader and multiple forms of participation and cooperation are present; there are excellent partnerships and communication mechanisms among the participants. The endogenous and sustainable development model identified from Yanhe village is valuable for other villages in China to adopt.     

Development of Neighborhood Residences in China: A Case Study of Baiwanzhuang

Neighborhood residence was firstly introduced by the Soviet Union in the early days of China's establishment. As representatives of the first generation of neighbourhood residences at that time, Baiwanzhuang bears profound historical imprints in this respect. Via historical records and current situation investigation, we focus on combing its past and present situation, try to trace the history of the introduction, development and decline of neighborhood residence in China, and explore the development model and logic of this type of residence form in China. The research is conducive to guiding improvement and promotion of current residence model to a certain level, and also provides the possibility to pursue another living form that is more suitable for social development and residents' needs.     

基于生境网络理念的城市绿地系统规划研究——以浙江余姚市中心城区绿地系统规划为例

城市绿地为城市生物多样性保护提供了重要的空间保障,构建和优化城市绿地生境网络对保护城市生物多样性意义重大。根据生境网络的相关理论,阐述了生境网络在绿地系统中的定位和建设的必要性。以余姚市绿地系统规划为例,针对城市空间扩张中导致的景观破碎化、生物栖息地减少等问题,在城市绿地现状评价的基础上,从市域绿地系统规划、中心城区绿地系统规划等不同层次阐述了城市绿地生境网络系统构建的方法和策略,研究结果可为城市规划者进行城市绿地系统规划提供科学的依据与参考。     

城市建设用地规模预测模型探讨——以河北省邢台市为例

国内众多专家学者对确定城市合理用地规模的方法上进行了多角度探索,本研究有益借鉴这些成果,采用多元线性回归分析和BP神经网络2种较成熟的预测模型,选取城市建设用地面积、地区生产总值、固定资产投资、城市人口数、年末道路面积、城市园林绿地面积、商品房平均售价为观测指标,分析预测河北省邢台市的建设用地规模。结果表明,预测结果并不理想,预测值与实际值的误差始终存在,并随时间推移不断扩大,深入分析预测结果产生偏差的原因,即忽视了非理性因素对城市建设用地规模的影响。建议引入行为金融学理论,将研究对象具化到个人,研究土地市场管理者和投资者在决策过程中的认知、行为偏差,分析城市建设用地面积持续蔓延的非理性动力,应用行为组合理论和资产定价模型对传统研究范式进行有益补充和修正,进而更科学地把握城市用地空间形成机制及演变规律。     

贵州省湿地维管束植物区系研究

贵州湿地野生维管束植物共有95科221属484种,其中蕨类植物16科19属23种,被子植物79科202属461种;区系主要由草本植物组成,其科、属、种(65科、172属、398种)的优势现象明显,双子叶植物(57科114属272种)构成了贵州湿地维管束植物区系的主体.分布区类型多样,在科级水平上有8个类型与5个变型,在属级水平上有13个类型14个变型,在种级水平上有13个类型,表明该区系地理成分复杂,与其它区系联系广泛;温带成分略占优势,反映出该区系从亚热带到温带过渡的区系特点,并与亚热带成分有着广泛联系;特有属匮乏(6属),但中国特有种较多(155种),揭示了贵州喀斯特环境条件下湿地维管束植物区系的特点.     

气象条件对水稻生产影响研究

为了研究气象条件对水稻生产的影响,为当地水稻的种植生产提供依据,对安徽南陵2005—2014年早稻、中稻和一季晚稻、双季晚稻全生育期的主要气象因子进行分析评价,研究其对各类水稻气象产量的影响,并定量计算出各气象因子与该三类水稻气象产量的相关系数。结果发现：水稻气象产量具有明显的年际变化,早稻和双季晚稻整体呈上升趋势,中稻和一季晚稻基本持平,略有下降。对比分析和相关性显示,早稻气象产量与降水量和蒸发量相关性较大,且与降水量和蒸发量分别呈负相关和正相关;中稻和一季晚稻受温度、蒸发量和降水量影响显著,与蒸发量相关性最大,并且与降水量成正比,与温度、蒸发和日照时数成反比;双季晚稻与各气象因子的相关性较前两种水稻偏小。该研究获得了南陵不同气象因子对水稻生长的影响程度,为今后水稻种植合理避开气象灾害打下基础。     

浙江省糯玉米品种耐密性试验

以浙江省主要推广的13个糯玉米品种为材料,研究了在常规和高密度两种种植条件下的产量和农艺性状的变化规律。结果表明：密度和品种对产量的影响达极显著水平,增加种植密度能够大幅度的增加产量,渝糯7号、浙糯玉3号、燕禾金2005、苏科花糯2008这四个为耐密品种,在6.75万株/hm2密度下产量高过对照品种苏玉糯2号15%以上。     

基于农户调查的黑龙江省农村宅基地流转问题与对策研究

基于农户调查基础上研究黑龙江省农村宅基地流转问题并提出相应对策,以盘活存量农村宅基地,提高农村宅基地集约节约利用度。通过对帽儿山镇农村宅基地流转现状进行实地调研,在收集整理农户对宅基地流转意愿数据的基础上,从农户视角出发对农村宅基地流转进行了初步探讨,分析帽儿山镇农村宅基地流转现状,揭示出帽儿山镇农村宅基地流转存在的问题,借鉴文献中的成功经验与方式方法,提出相应的建议与对策,为帽儿山镇农村宅基地流转的制度化、规范化、法制化提供依据。     

县域农业产业化可持续发展探索——以江西省余干县为例

目前农业产业化已经成为中国促进农业增效和农民增收的关键措施,也是解决“三农”问题,整体推进农村经济工作的重要手段。在农业产业化发展体系日趋完善的同时,由此带来的一系列问题（土地持续利用、农村环境改善、农产品加工废物、循环产业链延长等）也逐步凸现出来,对农业产业化可持续发展提出了挑战。本研究以余干县农业产业化发展为例,通过对余干县农业产业化发展的现状、问题及生态足迹的分析,发现余干县农业产业化发展处于不可持续状态,并从可持续发展的角度探讨了余干县农业产业化发展的方向（农业产业化与生态农业相结合、农业产业化与旅游观光业相结合）,以期为县域农业产业化的长期可持续发展提供可行的途径。

     

Development Trend of Vertical Greening in China and Countermeasures

Current situation of urban green spaces was analyzed, vertical greening, elevated floor and roof garden were effi cient ways of expanding urban green coverage area. The signifi cance of expanding green areas, improving soil, renovating and maintaining green plants was discussed.     

农业网站信息资源整合研究——以中国农业信息网为例

为了摸清农业网站信息资源整合模式和存在的问题,指明中国农业网站信息资源整合的方向与重点,通过对农业网站信息资源整合内涵和中国农业信息网信息资源整合模式分析,总结出网站链接、信息自动推送（采集）、远程人工上传3 种农业网站资源整合模式,分析了中国农业网站信息资源整合在资源分类、整合深度和整合手段存在的不足,提出建立统一的网站信息资源整合标准规范、推进网站信息资源垂直化整合、充分利用WEB技术开展资源整合等3项建议。     

耕地质量与粮食生产水平相关性分析

为了探讨耕地质量与粮食生产水平的关联性,找出基于耕地质量视角的粮食产能提升途径,借助GIS技术,在分析耕地质量与粮食生产水平现状的基础上,构建了耕地质量综合折算系数I_Q,统一折算标准,把分散质量等级转化成可比的综合质量,划分了耕地质量与粮食生产水平等级,构建了“耕地质量-生产水平”综合区,并分析了各综合区特点与“耕地质量-生产水平”耦合提升的途径。结果表明：耕地质量综合折算指数范围为3.56%~4.67%。将江西省耕地质量划分出了低质量、中质量、高质量3个质量等级类型;形成了时段Ⅰ、时段Ⅱ的低产区、中产区、高产区粮食生产水平类型区;据空间与属性匹配后得到了低质量-低产区(LQ-LP)、低质量-中产区(LQ-MP)等7类综合区;针对各综合区特点,基于生态环境、自然条件、社会经济投入等方面,提出促进耕地综合质量与粮食生产能力水平提升的途径与建议。