The grasslan:resource and its utilization, improvement in

Jin Zhaoshou; Liang Yimin; Sun Lian

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The grasslan:resource and its utilization, improvement in

- The grasslan:resource and its utilization, improvement in
- Bulletin of Soiland Water Conservation Vol. 9, Issue 2, Pages: 21-26(1990)
- 作者机构：
  
  1. 中国科学院
  2. 水利部西北水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1990
- 稿件说明：
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Jin Zhaoshou, Liang Yimin, Sun Lian. The grasslan:resource and its utilization, improvement in[J]. Bulletin of Soiland Water Conservation, 1990, 9(2): 21-26.
DOI：

Jin Zhaoshou, Liang Yimin, Sun Lian. The grasslan:resource and its utilization, improvement in[J]. Bulletin of Soiland Water Conservation, 1990, 9(2): 21-26. DOI：

摘要

本文通过调查和试验资料，论述了安塞县水土流失严重的纸坊沟小流域天然草地(牧荒坡)类型、分布特点、质量评价、利用现状、现实和潜在生产力，以及草地在水土保持型生态农业中的作用和目前草地管理、建设中的问题;提出了该地区天然草地改良和人工草地建设上，切实可行的途径和措施，以及适宜种植的草、灌植物种及其合理配置，为该类型区草业和水土保持型生态农业建设提供了可靠的依据。

Abstract

It indicated in this paper the main type

distribution

producti-veness of grazed natural grassland and avenue to improve and use ration-ally it inZhifang Valley

Ansai County

With reclaiming and over stoc-king

natural grassland distributed mainly on steep gully side

making up 28

8%of the total land area

- and its yield capacity was generally 1.800-2.550 kg/ha (fresh weight)。After closure against grazing for 2}3 years or interseeding Caragana korshinskii and Sophora viciifolia and so on

the yield capacity increased 1.9-}-2

1 times and tire rate of low一grade herbage decreased to 7.9-rll。1%from 40

9-76

9. Authors suggest that combiningestablishment of artificial grassland with transforming crop rotation sys-tem and animal production Could promote agriculture and animal husban- dry in the loess hilly and valley region

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