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鍦扮悊鐮旂┒ 鈥衡�� 2008, Vol. 27 鈥衡�� Issue (1): 145-154.DOI: 10.11821/yj2008010016

鈥� 鍦拌〃杩囩▼鐮旂┒ 鈥� 涓婁竴绡�    涓嬩竴绡�

鍏稿瀷榛戝湡鍖哄皬娴佸煙娴呮矡渚佃殌瀛ｈ妭宸紓鍒嗘瀽

寮犳案鍏�1, 浼嶆案绉�2, 姹█鍦�2, 鍒樺疂鍏�1   

  1. 1. 鍖椾含甯堣寖澶у鍦扮悊涓庨仴鎰熺瀛﹀闄�,鍖椾含 100875;
    2. 鍖椾含甯堣寖澶у闃叉矙娌绘矙鏁欒偛閮ㄥ伐绋嬬爺绌朵腑蹇�, 鍖椾含甯堣寖澶у涓浗娌欐紶鐮旂┒涓績, 鍖椾含 100875
  • 鏀剁鏃ユ湡:2007-01-19 淇洖鏃ユ湡:2007-07-12 鍑虹増鏃ユ湡:2008-01-25 鍙戝竷鏃ユ湡:2008-01-25
  • 浣滆�呯畝浠�:寮犳案鍏� (1980- ),鐢�,娌冲崡鍛ㄥ彛浜�,鍗氬＋鐢熴�備富瑕佽繘琛屽湡澹や镜铓�鍜屾祦鍩熶镜铓�浜ф矙鐮旂┒銆侲-mail :zyg@ires.cn *閫氳浣滆�� : 浼嶆案绉�,鏁欐巿,鍗氬＋鐢熷甯堛�侲-mail: yqwu@bnu.edu.cn
  • 鍩洪噾璧勫姪:

    鍥藉閲嶇偣鍩虹鐮旂┒鍙戝睍瑙勫垝椤圭洰"涓浗涓昏姘磋殌鍖哄湡澹や镜铓�杩囩▼涓庤皟鎺х爺绌�(2007CB407204)"璧勫姪銆�

Seasonal discrepancy of ephemeral gully erosion in Northeast China with black soils

ZHANG Yong-guang1, WU Yong-qiu2, WANG Yan-zai2, LIU Bao-yuan1   

  1. 1. College of Geography and Remote Sensing, Beijing Normal University, Beijing 100875, China;
    2. MOE Engineering Center of Desertification and Blown-sand Control at Beijing Normal University, China Center of Desert Research at Beijing Normal University, Beijing 100875, China
  • Received:2007-01-19 Revised:2007-07-12 Online:2008-01-25 Published:2008-01-25
  • Supported by:

    鍥藉閲嶇偣鍩虹鐮旂┒鍙戝睍瑙勫垝椤圭洰"涓浗涓昏姘磋殌鍖哄湡澹や镜铓�杩囩▼涓庤皟鎺х爺绌�(2007CB407204)"璧勫姪銆�

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閫氳繃2005骞村榛戦緳姹熼工灞卞啘鍦轰袱涓皬娴佸煙杩涜瀹氫綅瑙傛祴,鐮旂┒浜嗗吀鍨嬮粦鍦熷尯娴呮矡渚佃殌鐗瑰緛鍙婂叾瀛ｈ妭宸紓,骞跺浣滅墿绫诲瀷鍜岃�曚綔鎺柦瀵规祬娌熶镜铓�鐨勫奖鍝嶈繘琛屼簡鍒嗘瀽銆傜粨鏋滆〃鏄�,涓ゆ祦鍩熷勾娴呮矡渚佃殌閲忚揪285.9 m3 km-2鍜�290.8 m3 km-2,浠呮祬娌熶镜铓�閲忓氨瓒呰繃浜嗛粦鍦熷尯鐨勫湡澹ゅ厑璁镐镜铓�閲忋�傛祬娌熶镜铓�閲忓憟鐜板嚭娌垮潯闈㈡尝鍔ㄧ殑鍙樺寲,娌垮潯闈㈠悜涓嬪瓨鍦ㄦ祬娌熶镜铓�鐨勫己寮变氦鏇垮甫銆傛槬澶忔祬娌熶镜铓�鍦ㄤ镜铓�寮哄害銆佹祬娌熷舰鎬佸強涓昏褰卞搷鍥犵礌3涓柟闈㈠瓨鍦ㄥ樊寮�,鏄ュ娴呮矡渚佃殌鍙楄瀺闆�佸喕铻嶅奖鍝嶆樉钁�,渚佃殌杈冨瀛ｄ弗閲�;涓庢槬瀛ｇ浉姣�,澶忓娴呮矡闀垮害鍙樼煭銆佸搴﹀彉澶с�佹繁搴﹀彉娴�,娴呮矡浣撶Н涓庨暱搴︾殑鐩稿叧鎬ц緝鏄ュ宸�,杩欎笌澶忓鏆撮洦鍘嗘椂鐭�侀洦寮哄ぇ浠ュ強妞嶈鐩栧害澶ф湁鍏炽�傝�曚綔鎺柦鍜屼綔鐗╃被鍨嬪奖鍝嶆祬娌熶镜铓�娣卞害鍜屾祬娌熷垎甯�,灏ゅ叾鍦ㄥ瀛ｆ瘮杈冩槑鏄俱��

鍏抽敭璇�: 娴呮矡渚佃殌, 鍏稿瀷榛戝湡鍖�, 灏忔祦鍩�, 瀛ｈ妭宸紓

Abstract:

Ephemeral gully erosion can be a major sediment source serving as main conduits to convey runoff and sediment from most farmland. Ephemeral gully erosion is similar to but differ from both rill and classical gully erosion.But ephemeral gully erosion is often overlooked, and it is also not estimated with rill-interrill erosion prediction models such as the Revised Universal Soil Loss Equation. Soil erosion is increasingly severe in Northeast China with black soils, in which ephemeral gully erosion is an important type of water erosion. However, the existing literature indicated that little research on ephemeral gully erosion has been done in this area.In this paper, ephemeral gully erosion was investigated in spring and summer of 2005 in black soil regions of two small catchments on Heshan Farm of Heilongjiang Province.The aim of the study was to present the characteristics of ephemeral gullies and their seasonal discrepancies and controlling factors. The results show that soil losses due to ephemeral gully erosion fluctuate along the slope, and the high erosivity belts alternate with the low belt.There are also great differences in the morphology, the erosion intensity and controlling factors of ephemeral gully erosion between spring and summer. Ephemeral gully erosion in spring is mainly resulted from snow storm and is significantly influenced by freeze-thaw and snowmelt runoff. Ephemeral gully erosion in spring is slightly severer than that in summer. Ephemeral gully erosion was caused by storm. Compared with that in spring, ephemeral gullies in summer were shorter and shallower, but wider due to the storm characterized by high intensity and low duration. Furthermore, the depth and distribution of ephemeral gully are significantly influenced by tillage practice and crop type, especially in summer.

Key words: ephemeral gully erosion, black soil regions, tillage practices, seasonal discrepancy