本文主要研究内容
作者杨云斌,张建军,李梁,孙若修,张海博,张佳楠（2019）在《晋西黄土区降雨过程对小流域产流的影响》一文中研究指出：【目的】探究降雨过程(雨型)对小流域产流过程的影响,为小流域尺度上产汇流分析提供依据。【方法】以山西吉县森林生态系统国家野外科学观测研究站的蔡家川小流域为研究对象,利用蔡家川小流域2007—2017年场降雨径流数据,根据雨量在降雨过程中集中的位置进行雨型划分,并采用LSD多重比较法分析不同雨型的特征,在不同土地利用类型的小流域尺度上探究雨型特征与产流的响应关系。【结果】(1)蔡家川流域的降雨可划分为前期型降雨(I型)、中期型降雨(Ⅱ型)、后期型降雨(Ⅲ型)和均匀型降雨(Ⅳ型)。Ⅰ型降雨为短历时强降雨,是主要降雨雨型,占总降雨频次的44.6%,平均雨量为24.6 mm,降雨侵蚀力最强,集中分布在6—8月;Ⅳ型降雨为长历时小雨强降雨,平均历时716 min,平均雨量为17.84 mm,降雨侵蚀力最弱,多出现在雨季的前期(5月份)和后期(9月份);Ⅱ型和Ⅲ型降雨的特征介于Ⅰ型和Ⅳ型降雨之间,多发生在6—8月,降雨量和频次相对均衡。(2)不同雨型条件下小流域的径流深、洪峰流量排序为:Ⅰ型降雨>Ⅲ型降雨>Ⅱ型降雨>Ⅳ型降雨,洪峰滞后时间排序为:Ⅳ型降雨>Ⅱ型降雨>Ⅲ型降雨>Ⅰ型降雨。(3)Ⅰ型、Ⅲ型降雨条件下农地小流域的径流深和洪峰流量高于封禁小流域,Ⅱ型和Ⅳ型降雨条件下封禁小流域的径流深和洪峰流量略高于农地小流域,封禁小流域的洪峰出现时间均滞后于农地小流域。(4)降雨量和历时对农地小流域产流的影响更大,雨强分布对封禁小流域产流的影响更大。【结论】不同雨型的降雨特征差异性显著,Ⅰ型降雨是引起小流域产流的主要雨型,大雨量强降雨更易造成流域的水土流失;封禁小流域削减径流、延长洪峰出现时间的作用显著,尤其对大雨量强降雨的调节作用更明显;在晋西黄土区降雨量、降雨历时和降雨过程中的雨强分布是影响小流域产流过程的重要因素。
Abstract
【mu de 】tan jiu jiang yu guo cheng (yu xing )dui xiao liu yu chan liu guo cheng de ying xiang ,wei xiao liu yu che du shang chan hui liu fen xi di gong yi ju 。【fang fa 】yi shan xi ji xian sen lin sheng tai ji tong guo jia ye wai ke xue guan ce yan jiu zhan de cai jia chuan xiao liu yu wei yan jiu dui xiang ,li yong cai jia chuan xiao liu yu 2007—2017nian chang jiang yu jing liu shu ju ,gen ju yu liang zai jiang yu guo cheng zhong ji zhong de wei zhi jin hang yu xing hua fen ,bing cai yong LSDduo chong bi jiao fa fen xi bu tong yu xing de te zheng ,zai bu tong tu de li yong lei xing de xiao liu yu che du shang tan jiu yu xing te zheng yu chan liu de xiang ying guan ji 。【jie guo 】(1)cai jia chuan liu yu de jiang yu ke hua fen wei qian ji xing jiang yu (Ixing )、zhong ji xing jiang yu (Ⅱxing )、hou ji xing jiang yu (Ⅲxing )he jun yun xing jiang yu (Ⅳxing )。Ⅰxing jiang yu wei duan li shi jiang jiang yu ,shi zhu yao jiang yu yu xing ,zhan zong jiang yu pin ci de 44.6%,ping jun yu liang wei 24.6 mm,jiang yu qin shi li zui jiang ,ji zhong fen bu zai 6—8yue ;Ⅳxing jiang yu wei chang li shi xiao yu jiang jiang yu ,ping jun li shi 716 min,ping jun yu liang wei 17.84 mm,jiang yu qin shi li zui ruo ,duo chu xian zai yu ji de qian ji (5yue fen )he hou ji (9yue fen );Ⅱxing he Ⅲxing jiang yu de te zheng jie yu Ⅰxing he Ⅳxing jiang yu zhi jian ,duo fa sheng zai 6—8yue ,jiang yu liang he pin ci xiang dui jun heng 。(2)bu tong yu xing tiao jian xia xiao liu yu de jing liu shen 、hong feng liu liang pai xu wei :Ⅰxing jiang yu >Ⅲxing jiang yu >Ⅱxing jiang yu >Ⅳxing jiang yu ,hong feng zhi hou shi jian pai xu wei :Ⅳxing jiang yu >Ⅱxing jiang yu >Ⅲxing jiang yu >Ⅰxing jiang yu 。(3)Ⅰxing 、Ⅲxing jiang yu tiao jian xia nong de xiao liu yu de jing liu shen he hong feng liu liang gao yu feng jin xiao liu yu ,Ⅱxing he Ⅳxing jiang yu tiao jian xia feng jin xiao liu yu de jing liu shen he hong feng liu liang lve gao yu nong de xiao liu yu ,feng jin xiao liu yu de hong feng chu xian shi jian jun zhi hou yu nong de xiao liu yu 。(4)jiang yu liang he li shi dui nong de xiao liu yu chan liu de ying xiang geng da ,yu jiang fen bu dui feng jin xiao liu yu chan liu de ying xiang geng da 。【jie lun 】bu tong yu xing de jiang yu te zheng cha yi xing xian zhe ,Ⅰxing jiang yu shi yin qi xiao liu yu chan liu de zhu yao yu xing ,da yu liang jiang jiang yu geng yi zao cheng liu yu de shui tu liu shi ;feng jin xiao liu yu xiao jian jing liu 、yan chang hong feng chu xian shi jian de zuo yong xian zhe ,you ji dui da yu liang jiang jiang yu de diao jie zuo yong geng ming xian ;zai jin xi huang tu ou jiang yu liang 、jiang yu li shi he jiang yu guo cheng zhong de yu jiang fen bu shi ying xiang xiao liu yu chan liu guo cheng de chong yao yin su 。
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论文作者分别是来自北京林业大学学报的杨云斌,张建军,李梁,孙若修,张海博,张佳楠，发表于刊物北京林业大学学报2019年03期论文，是一篇关于雨型论文,降雨过程论文,径流论文,洪峰流量论文,黄土区论文,北京林业大学学报2019年03期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自北京林业大学学报2019年03期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。