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游客信息与湖泊旅游风景区开发中的生态建设——以云南抚仙湖为例 被引量:2
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作者 段昌群 杨雪梅 +1 位作者 王焕校 胡志浩 《思想战线》 CSSCI 北大核心 2000年第1期90-94,共5页
valid survey tables from 700 inquired tourists were harvested in the newly-opened scenic spot of Lake Fuxianhu in the middle of Yunnan Province of China, and the feature of ages, profession, cultural structure, the to... valid survey tables from 700 inquired tourists were harvested in the newly-opened scenic spot of Lake Fuxianhu in the middle of Yunnan Province of China, and the feature of ages, profession, cultural structure, the tourist distribution in the scenic spot around year, the preference and interests, expenditure, the attitude of facilities allocation, satisfaction level in tourism service were analyzed. Following are some conclusion to be drawn from this study: tourist in Lake Fuxianhu mainly swarmed in the season of summer and spring so that in this rush season there was not much tourism facilities and services available for tourists and no due expenses from them; less tourism items and activities than needed in the scenic area were given to the tourists so that the staying time was short and the income of tourism was low; the water quality was vital to the tourism development in the lake. From the view of the macroscopic ecological economics, some countermeasures were put forward about the rational development and protection in the lake: a lot of new tourism spots located around the hills or some other areas near the waters in replacement of that around the lake should be constructed and new tourism items should be conducted so as to prolong the staying time of the tourists, raise local income and alleviate the load of water environment; the distinctiveness in Lake Fuxianhu should be built up in the process of the exploitation of tourism in coordination with the natural environmental landscape and humane feature; it is of great importance to protect and build up the vision corridor around the lake; the development of phosphors resource in the watershed of the lake and protection of the lake should be harmonized. 展开更多
关键词 游客信息 景观建设 旅游经济 云南 可持续发展
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大豆的遗传特点、品质改良与育种难点 被引量:12
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作者 杨桂英 马绍宾 何瀚 《贵州农业科学》 CAS 2002年第6期57-60,共4页
关键词 大豆 遗传特点 品质改良 育种
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不同重金属污染经历下曼佗罗(Datura stramonium)核酸代谢动态变化研究 被引量:8
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作者 文传浩 常学秀 +1 位作者 王震洪 段昌群 《农业环境保护》 CSCD 1999年第2期49-53,共5页
报道了铅锌矿区经历不同重金属污染时间的曼佗罗种群的核酸代谢动态变化情况。结果表明,重金属污染在短期几年内能抑制曼佗罗种群的核酸含量及刺激其核酸酶活性,但随着污染年代的推移,曼佗罗种群的核酸代谢变化朝着无污染的正常值方... 报道了铅锌矿区经历不同重金属污染时间的曼佗罗种群的核酸代谢动态变化情况。结果表明,重金属污染在短期几年内能抑制曼佗罗种群的核酸含量及刺激其核酸酶活性,但随着污染年代的推移,曼佗罗种群的核酸代谢变化朝着无污染的正常值方向发展、回复,说明在长期重金属污染胁迫下,曼佗罗获得了对重金属的抗性。但机制不明,有待进一步研究。 展开更多
关键词 重金属 污染 螺佗罗 核酸代谢 抗性 生物效应
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城市林业发展史回顾 被引量:10
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作者 司马永康 徐涛 王跃华 《林业调查规划》 2002年第1期17-19,共3页
城市林业从其产生、发展直到今天 ,将其划分为萌芽、建立和巩固与发展等 3个阶段 ,城市林业的发展具有明显的阶段性、显著的加速性和区域的不平衡性。城市林业兴起于社会经济需要 。
关键词 城市林业 发展史 社会经济需要
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丛枝菌根研究及应用 被引量:6
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作者 杨显志 邵华 +3 位作者 周成 宣群 杨春燕 张玲琪 《云南农业科技》 2001年第4期38-41,共4页
关键词 菌根 丛枝菌根 丛枝菌根真菌 纯培养 离体双重培养 应用
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