杨利民戏剧中湿地文学书写及其多重价值

大庆是著名的石油之都、百湖之城、湿地之城,大庆文学也因此被打上浓墨重彩的“石油”与“湿地”烙印。在扎实、厚重、丰硕的石油文学、湿地文学成果中,杨利民的戏剧创作格外值得关注。杨利民的戏剧,既立足大庆的石油文学和湿地文学,又超越了地域与区域文学之限,开始放眼于对生态文学和生态文化的强烈关注,深沉地思考人与动植物之间的和谐共生、生态环境与人类的未来等问题。其戏剧代表作不仅塑造了英雄的石油人群像,而且还再现了大庆的湿地之美,从而丰富了我国湿地文学创作。杨利民戏剧中湿地文学书写经历了一个由背景元素渐趋成为主角的动态过程,并具备文学、美学、文化以及精神抚慰等多重价值。

基于OBE理念的《湿地水文学实验》教学改革策略探索

本文基于成果导向教育(OBE)理念,以湿地保护与恢复专业的核心课程《湿地水文学实验》教学为例,通过分析当前实验教学存在的问题,提出了一系列改革建议。强调以学生学习成果为导向,优化实验教学内容和方法,强化师资队伍建设,注重实践能力培养,提升学生的综合素养和解决实际问题的能力,结合OBE教育理念与实践需求,旨在为《湿地水文学实验》教学的创新与发展提供有益参考。

湿地水文学研究进展及科学前沿问题

湿地水文过程控制湿地的形成与演化,湿地水文情势制约着湿地环境的生物、物理和化学特征,从而影响到湿地类型分异、湿地结构与功能,湿地水文研究是认识湿地生态系统的结构、过程与功能的主要内容。湿地水文情势分析涉及湿地的降雨-径流、湿地蒸散发、湿地地下水运移等主要过程。湿地水循环及水量平衡是湿地水文情势和过程研究的综合,关系到湿地水文循环过程的各个方面。湿地水文过程、边际效应和参数特征及对不同尺度水周期的响应与功能差异等是现代湿地水文研究的重要科学问题。

水文情势对帕布曲上游湿地藏北蒿草生长影响分析

研究了水文情势对藏北蒿草生长的影响过程。以拉萨市尼木县帕布曲上游湿地为研究对象,通过收集尼木县帕布曲水文资料,计算了多年平均径流量逐月变化,并将藏北蒿草各时间段营养期情况与帕布曲年平均径流量时间逐一比对,分析了水文情势对藏北蒿草生长影响的具体过程。得出了帕布曲在不同水文情势对藏北蒿草不同生长时期的影响过程以及藏北蒿草的生境水文要求。结果表明:在以藏北蒿草为代表的西藏湿地植被的环境保护过程中,仅凭基本的生态基流是不能满足湿地内植被生长要求的,不仅要在水量上保证湿地生态系统不受影响,还要尽量维持天然的水文过程,也就是尽可能地保持天然环境水流。

Correlation of eco-hydrographic benefit and height increment of Robinia pseudoacacia stand with climatic environmental factors in Yellow River Delta Wetland of China

The relationship between eco-hydrographic benefit of forest vegetation and climatic environmental factors is one of the focuses in the research on environmental protection and ecosystem countermeasures in Wetland. The runoff, sediment and soil moisture rate dynamics in Robinia pseudoacacia plantation and its clearcut area were investigated in the natural runoff experiment plots in Yellow River Delta Wet- land, Shandong Province, China. The correlation of height increment ofR. pseudoacacia with nine climate factors such as light, water, heat, etc. was analyzed by stepwise regression analysis. The results showed that the amounts of runoff and sediment in clearcut area of R. pseudoacacia were 53.9%-150.8% and 172.8%-387.1% higher than that in Robinia pseudoacacia plantation, respectively. The runoff peak value in R. pseudoacacia stand was obviously lower than that in clerarcut area, meantime, the occurrence of runoffpeak in R. pseudoacacia stand was 25 min later than in its clerarcut area. The soil moisture rates in R. pseudoacacia stand and its clearcut varied periodically with annual rainfall precipitation in both dry season and humid season. The annual mean soil moisture rate in R. pseudoacacia stand was 23.3%-25.6% higher than that in its clearcut area. Meanwhile, a regression model reflecting the correlation between the height increment of R. pseudoacacia and climatic factors was developed by stepwise regression procedure method. It showed that the light was the most important factor for the height increment ofR. pseudoacacia, followed by water and heat factors.