Wangr Benxian,Zhang Jinchi,Xu Liang,et al.Study on the Function of Soil and Water Conservation for Different Land Use in Hilly Region of South Jiangsu[J].Research of Soil and Water Conservation,1997,4(01):145-148,154.
苏南丘陵区不同土地利用状况的蓄水保土功能研究
- Title:
- Study on the Function of Soil and Water Conservation for Different Land Use in Hilly Region of South Jiangsu
- 摘要:
- 通过对试验区水平梯田、杉木林和裸地三种不同处理地段水土流失状况的定位观测。以及地表径流水水质和土壤理化性状的分析。认为水平梯田和茂密的林木覆被他表，不仅大大减低土壤侵蚀量。而且能降低土壤物质的流失量。据研究，水平梯田和杉木林区的年土壤侵蚀模数分别为荒波对照区的2.4%和4.01%，年地表径流系数分别为对照区的42.3%和32.3%；梯田区氮、磷、钾和有机物质的流失量分别比对照区低67.26%，70.49%，66.4%和95.57%；杉木林区分别比对照区低72.07%，77.02%，43。18%和90.7%
- Abstract:
- On the basis of orientative observation of the soil and water loss on 3 plots (terraced field,Chinese fir plantation and bare spot),and the analysis of surface runoff water quality and soil characteristics, it is believed that building terraced field and planting trees on the sloping tillage field can decrease not only the (luantity of water and soil loss,but also the loss of nutrient matter from soil. The modulus of soil erosion on the horizontal terraced field and Chinese fir plantation are 2.49% and 67.7% than that on the bare plot. The loss of N, P, K and organic matter on the horizontal terraced field is 67.26 9%, 70.4%, 66.4% and 95.57% lower than that on the bare plot, and also the loss of N, P, K and organic matter on Chinese fir plantation is 72.O7%. 77.02%. 43.18%,and 90.7% lower than that on the bare plot. Moreover,the time of surface runoff on the horizontal terraced field and Chinese fir plantatios is held up by 30 min as compared with bare plot, and the flooding quantity on the flood peak will decrease 2 to 3 times.
参考文献/References:
1 水电部农村水土保持司.水土保持试验规范.水利电力出版社, 1988
2 中国科学院南京土壤研究所.土壤理化分析.上海:上海科技出版社, 1993, 6
3 李土生, 姜志林.苏南丘陵区主要森林类型地表径流初步分析, 见:姜志林主编, 下蜀森林生态系统定位研究文集, 北京:中国林业出版社.1992
4 何汉杏.广西桥林区不同植被类型水文效益的研究.中南林学院学报.1991.11(1)
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备注/Memo
收稿日期:1996-6-2;改回日期:。
作者简介:王本贤，1937年元月生，1960年毕业于江苏水利学院农田水利专业中专班，一直从事基层水利和水土保持治理工作，先后发表论文5篇，现在南京市江宁县水利农机局工作，工程师。