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首页> 外文期刊>Indonesian Journal of Forestry Research >THE POTENTIAL OF FOREST BUFFER TO PREVENT STREAM FROM WATER POLLUTANTS:A CASE STUDY IN GROJOKAN SEWU SUB-WATERSHED, KARANGANYAR DISTRICT, CENTRAL JAVA
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THE POTENTIAL OF FOREST BUFFER TO PREVENT STREAM FROM WATER POLLUTANTS:A CASE STUDY IN GROJOKAN SEWU SUB-WATERSHED, KARANGANYAR DISTRICT, CENTRAL JAVA

机译：森林可防止水体污染的潜力：以中爪哇省卡兰甘雅尔地区格罗霍坎·塞乌次水区为例

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Population growth leads to water scarcity in terms of both quality and quantity. Agricultural and urban watersheds potentially produce more pollutantsthan forested area. It is considered that forested area has potential in storing and protecting water supply in such a way that water distribution and quality can be guaranteed. The objective of the study was to determine the relationship between the percentages of forested area in a watershed with the water quality. Thestudy was conducted in 2010in GrojokanSewu Sub-watershed, Karanganyar District, Central Java. Using GIS (Geographic Information System), this sub-watershedwas divided into four sub-sub-watershedswith different percentages of forested areas. Water samples were collected in each sub-sub-watershedto find out the relationship between the forested area and the total dissolvedsolids, turbidity, sodium, nitrite, nitrate, sulfate and organic matters. The statistical analysis indicates relationships in quadratic form between sodium, nitrite, TDS, sulfate and organic matters with the percentage of forested area ( R 2=0.99, R 2=0.99, R 2=0.98, R 2=0.95 and R 2=0.77, respectively). The relationships are different from those of turbidity and nitrate that have low R 2 ( R 2=0.28 and R 2=0.36) values. It implies that the forested area is capable to reduce sodium, nitrite, TDS, sulfate and organic matters, and thus water pollutants can be reduced by forest formation as it can filter water through retention of sediments and nutrients.
机译：人口增长导致水质和数量均短缺。农业和城市流域潜在的污染物排放量可能超过森林面积。人们认为林区有潜力以确保水的分配和质量的方式来储存和保护供水。该研究的目的是确定流域森林面积百分比与水质之间的关系。该研究于2010年在中爪哇省Karanganyar区GrojokanSewu子流域进行。使用GIS（地理信息系统），该子集水区被分成四个子集水区，其中森林面积百分比不同。在每个子流域收集水样，以了解森林面积与总溶解固体，浊度，钠，亚硝酸盐，硝酸盐，硫酸盐和有机物之间的关系。统计分析表明，钠，亚硝酸盐，TDS，硫酸盐和有机物之间的二次关系与森林面积百分比有关（R 2 = 0.99，R 2 = 0.99，R 2 = 0.98，R 2 = 0.95和R 2 = 0.77 ， 分别）。该关系不同于具有低R 2（R 2 ＝ 0.28和R 2 ＝ 0.36）值的浊度和硝酸盐的关系。这意味着森林区域能够减少钠，亚硝酸盐，TDS，硫酸盐和有机物，因此森林形成可以减少水污染物，因为它可以通过保留沉积物和养分来过滤水。

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