光伏电站建设对靖边县土壤、植被的影响研究

发布时间：2017-12-27 22:03

本文关键词：光伏电站建设对靖边县土壤、植被的影响研究　出处：《西北农林科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：近年来,大规模的光伏电站建设带来了一系列问题,环境影响就是最主要的一个方面。为了阐明光伏电站建设对土壤理化性质、植被群落、小气候的影响,本研究在靖边县陕西太阳能光伏发电有限公司内布设光伏板未遮阴、遮阴和电站周边3种类型样地,45个土壤、植被调查样方,通过外业调查和室内分析研究了光伏电站建设对土壤理化性质、植被群落种类、物种多样性、生物量和小气候的影响,同时对政府能源主管部门和光伏电站企业提出了一些具体建议。主要结果如下:(1)光伏电站建设后,相对于电站周边,电站内表层土壤(0-20cm)含水量增加了30-34%,有机质增加了2.32-4.65%,速效磷增加了25.76-46.97%,速效钾增加了27.91-28.41%,pH降低了1.25-6.65%,电导率降低了34.24-60.82%,土壤容重变化不大;在电站内,相对于遮阴区域,未遮阴的土壤含水量、pH、电导率、速效磷、速效钾含量均增加,容重降低。(2)光伏电站建设后,相对于电站周边,电站内植物种类增加了129-143%,Shannon-Wiener指数增加了60.24-67.82%,Pielou指数增加了12.41-15.33%,Simpson指数增加了31.56-37.04%,生物量增加了127-144%。电站内相对于遮阴区域,未遮阴的植物种类、Shannon-Wiener、Pielou、Simpson指数、生物量均增加。(3)光伏电站建设后,相对于电站周边,电站内风速降低了23-43%,温度降低了26-32%,空气湿度增加了34-39%。(4)光伏电站建设能提高土壤肥力、降低土壤pH和全盐含量,增加植物种类、物种多样性和生物量。总的来看光伏电站建设对土壤、植被有促进作用。
[Abstract]:In recent years, a large number of photovoltaic power plant construction has brought a series of problems, the environmental impact is the most important aspect. In order to clarify the influence of the construction of photovoltaic power plants on the soil physicochemical properties, vegetation and climate, 3 types of samples of this study in Jingbian County of Shaanxi Power Generation Co. Ltd. in the layout of solar photovoltaic photovoltaic panels without shading, shading and power plants around 45, soil and vegetation plots, through field investigation and indoor analysis the construction of photovoltaic power plants affected the chemical properties, vegetation type, species diversity, biomass and climate on soil at the same time, some suggestions for the government departments in charge of energy and photovoltaic power station is put forward. The main results are as follows: (1) the construction of photovoltaic power plants, power plants around the power plant with respect, surface soil (0-20cm) moisture content increased 30-34%, organic matter, available phosphorus increased 2.32-4.65%, increased 25.76-46.97%, available potassium increased 27.91-28.41%, pH decreased 1.25-6.65%, the conductivity decreased 34.24-60.82%, the soil bulk density had little change in the power plant; in the shade, relative to the area, no shade of soil moisture, pH, conductivity, available phosphorus, available potassium content increased, bulk density decreased. (2) after the construction of photovoltaic power plants, plant species increased by 129-143%, Shannon-Wiener index increased by 60.24-67.82%, Pielou index increased by 12.41-15.33%, Simpson index increased by 31.56-37.04%, biomass increased 127-144%. The plant relative to the shade area, no shade plant species, Shannon-Wiener, Pielou, Simpson index and biomass were increased. (3) after the construction of the photovoltaic power station, the wind speed in the power station is reduced by 23-43%, the temperature is reduced by 26-32%, and the humidity of the air is increased by 34-39%. (4) the construction of photovoltaic power plant can improve soil fertility, reduce soil pH and total salt content, increase plant species, species diversity and biomass. On the whole, the construction of photovoltaic power station can promote the soil and vegetation.
【学位授予单位】：西北农林科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X820.3;TM615

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