土地利用对大湄公河次流域若干理化水质参数的影响

IF 0.6 Q4 FORESTRY Forestist Pub Date : 2021-08-31 DOI:10.5152/forestist.2021.20054
Tarık Çitgez, Refik Karagül, M. Özcan, A. K. Özbayram
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引用次数: 1

摘要

这项研究是在为伊斯坦布尔供水的大梅伦河的两个流域进行的。Yukarıkaraköy流域的森林地区占主导地位,而Avlayan流域的农业地区(榛子种植园)占主导地位。两个流域的出口区域都有定居点。该研究的目的是比较森林、定居区和榛子种植园对水质的影响。因此,在代表榛子种植园、森林和定居区的流点测量了2年的pH、电导率(EC)、溶解氧(DO)、总氮(TN)、NO 2−、NO 3−、SO 42−、PO 43−和NH 4+浓度。采样点的水质分类是根据《土耳其地表水质量条例》(SWQR)中规定的标准确定的。代表森林的采样点的平均EC、TN、NO 3−、SO 42−和DO分别为264µS/cm、1.5 mg/L、3.1 mg/L、14.7 mg/L和10.3 mg/L。榛子人工林代表点的EC、TN、NO 3−和SO 42−平均值高于森林代表点。在代表两个流域沉降区的采样点中,EC和PO 43−增加,而DO减少。因此,可以确定代表森林的点的溪流水质高于代表榛子种植园的点,并且定居点区域通过增加污染物浓度显著降低了水质。本研究在大梅伦的两个相邻子流域进行。Yukarıkaraköy流域约64%(214公顷)为森林,36%(120公顷)为农业用地,而Avlayan流域27%(194)为森林、70%(499公顷)为农田,3%(21公顷)为定居点。流域内的大部分农业用地用于榛子种植,在这些地区,肥料的使用很常见。
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Effect of Land Use on Some Physical and Chemical Water Quality Parameters in the Sub-watersheds of Big Melen Stream
This study was carried out in two watersheds of the Big Melen Stream, which provides water to Istanbul. Forest areas are dominant in the Yukarıkaraköy watershed, whereas agricultural areas (hazelnut plantations) are dominant in the Avlayan watershed. There are settlement areas at the outlet regions of both watersheds. The purpose of the study was to compare the effect on the water quality as a consequence of the forests, settlement areas, and hazelnut plantations. Accordingly, pH, electrical conductivity (EC), dissolved oxygen (DO), total nitrogen (TN), NO 2 − , NO 3 − , SO 42 − , PO 43 − and NH 4+ concentrations were measured in the stream points representing hazelnut plantations, forests, and settlement areas for 2 years. The water quality classification of the sampling points was determined in accordance with the criteria specified in the Turkish Surface Water Quality Regulations (SWQR). The mean EC, TN, NO 3 − , SO 42 − , and DO of the sampling point representing the forest were 264 µS/cm, 1.5 mg/L, 3.1 mg/L, 14.7 mg/L, and 10.3 mg/L, respectively. The mean EC, TN, NO 3 − , and SO 42 − values of the point representing the hazelnut plantation were higher than those of the point repre- senting the forest. In the sampling points representing the settlement areas of both watersheds, the EC and PO 43 − increased, while the DO decreased. As a result, it was determined that the stream water of the point rep- resenting the forest was of higher quality than that of the point representing the hazelnut plantation and that the settlement areas significantly reduced the water quality by increasing the concentrations of pollutants. This study was carried out in two adjacent sub-watersheds of Big Melen Approximately 64% (214 ha) of the Yukarıkaraköy watershed is forest and 36% (120 ha) agricultural land, whereas 27% (194) of the Avlayan watershed is forest, 70% (499 ha) agricultural land, and 3% (21 ha) settlement. Most of the agricultural land in the watersheds is used for hazelnut cultiva-tion, and the usage of fertilizers is common in these areas.
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来源期刊
Forestist
Forestist FORESTRY-
CiteScore
1.10
自引率
25.00%
发文量
37
审稿时长
20 weeks
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